{"id":10241,"date":"2022-01-23T08:35:30","date_gmt":"2022-01-23T13:35:30","guid":{"rendered":"https:\/\/mathemalchemy.org\/2022\/01\/23\/cryptographie-quilt-connexions-mathematiques\/"},"modified":"2024-11-03T14:47:35","modified_gmt":"2024-11-03T19:47:35","slug":"cryptographie-quilt-connexions-mathematiques","status":"publish","type":"post","link":"https:\/\/mathemalchemy.org\/fr\/2022\/01\/23\/cryptographie-quilt-connexions-mathematiques\/","title":{"rendered":"Courtepointe cryptographique &#8211; Connexions math\u00e9matiques"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull has-parallax coblocks-animate\" data-coblocks-animation=\"fadeIn\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-primary-background-color has-background-dim-80 has-background-dim\"><\/span><div class=\"wp-block-cover__image-background wp-image-5240 has-parallax\" style=\"background-position:50% 50%;background-image:url(https:\/\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg)\"><\/div><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"cryptography-quilt\" style=\"font-size:36px\">Courtepointe cryptographique<\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\" id=\"mathematical-connections\">Connexions math\u00e9matiques<\/h3>\n<\/div><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title has-background has-primary-background-color has-text-color has-background-color\">Si vous \u00eates \u00e0 l&rsquo;exposition&#8230;<\/summary><div class=\"wp-block-coblocks-accordion-item__content\" style=\"border-color:#2c313f\">\n<h4 class=\"wp-block-heading\" id=\"the-story\">L&rsquo;histoire<\/h4>\n\n\n\n<p>La courtepointe nous rappelle le caract\u00e8re profond\u00e9ment humain des math\u00e9matiques. Une faces met en \u00e9vidence les math\u00e9matiques de la cryptographie ; l&rsquo;autre repr\u00e9sente les dessins de sept femmes qui ont apport\u00e9 des contributions r\u00e9volutionnaires aux math\u00e9matiques.<\/p>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Regardez de plus pr\u00e8s&#8230; Que voyez-vous?<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p>La courtepointe cryptographique fait r\u00e9f\u00e9rence \u00e0 diff\u00e9rentes sc\u00e8nes de l&rsquo;installation. Pouvez-vous trouver la vignette de la courtepointe qui repr\u00e9sente&#8230;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>la <a href=\"#bakery\">boulangerie<\/a>?<\/li>\n\n\n\n<li>l&rsquo;<a href=\"#knotical\">environnement n\u0153ud-tique<\/a>?<\/li>\n\n\n\n<li>le <a href=\"#lighthouse\">phare<\/a>?<\/li>\n\n\n\n<li>le <a href=\"#garden\">jardin<\/a>?<\/li>\n\n\n\n<li>la randonn\u00e9e de la <a href=\"#tortoise\">tortue<\/a>?<\/li>\n<\/ul>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Concentrez-vous sur\u2026 la cryptographie \u00e0 cl\u00e9 publique!<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p>La cryptographie est l&rsquo;\u00e9tude du codage et du d\u00e9codage des messages. Elle soul\u00e8ve un probl\u00e8me fondamental : si deux personnes veulent communiquer en utilisant des messages s\u00e9curis\u00e9s qu&rsquo;elles seules peuvent comprendre, elles doivent d&rsquo;abord se mettre d&rsquo;accord sur un syst\u00e8me de codage. Comment peuvent-elles en cr\u00e9er un si elles ne disposent pas d\u00e9j\u00e0 d&rsquo;un moyen de communication s\u00e9curis\u00e9 ?<\/p>\n\n\n\n<p>La vignette avec le <a href=\"#garden\">tamia et l&rsquo;\u00e9cureuil<\/a> illustre l&rsquo;une des toutes premi\u00e8res solutions \u00e0 ce probl\u00e8me, appel\u00e9e RSA. Le tamia distribue une \u00ab\u00a0cl\u00e9 publique\u00a0\u00bb que les autres animaux peuvent utiliser pour coder des messages. Cependant, le d\u00e9codage n&rsquo;est possible qu&rsquo;en utilisant la \u00ab\u00a0cl\u00e9 priv\u00e9e\u00a0\u00bb que le tamia garde secr\u00e8te.<\/p>\n\n\n\n<p>L&rsquo;\u00e9cureuil utilise la cl\u00e9 publique pour chiffrer un message (un lotus, repr\u00e9sentant la paix et le calme). Le message brouill\u00e9 est envoy\u00e9 au tamia, qui le d\u00e9crypte avec succ\u00e8s.<\/p>\n<\/div><\/details><\/div>\n<\/div>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<p>La cryptographie ou \u00ab \u00e9criture secr\u00e8te \u00bb est un concept ancien. Depuis plusieurs mill\u00e9naires au moins, les gens ont voulu communiquer des messages \u00e0 des personnes \u00e9loign\u00e9es de telle sorte que, m\u00eame si le message \u00e9tait intercept\u00e9, il ne serait pas lisible par les intercepteurs. Pour y arriver, ils ont utilis\u00e9 diff\u00e9rentes formes de \u00ab codage \u00bb des informations. Les intercepteurs ont alors invent\u00e9 des syst\u00e8mes correspondants pour tenter de d\u00e9coder les messages. Dans la plupart des syst\u00e8mes traditionnels, il \u00e9tait essentiel que l\u2019exp\u00e9diteur et le destinataire pr\u00e9servent le secret du codage du message, car un intercepteur connaissant la cl\u00e9 de cryptage \u00e9tait capable de d\u00e9coder le message. Une connaissance partielle du syst\u00e8me (par exemple, la version d\u00e9cod\u00e9e de quelques extraits crypt\u00e9s) pouvait \u00eatre utilis\u00e9e pour \u00ab casser \u00bb un code, en faisant appel aux math\u00e9matiques et \u00e0 des calculs intensifs, comme ce fut le cas pour Enigma pendant la Seconde Guerre mondiale. Cela a chang\u00e9 au XX<sup>e<\/sup> si\u00e8cle, gr\u00e2ce \u00e0 l\u2019invention des syst\u00e8mes de cryptage \u00e0 cl\u00e9 publique. Ces syst\u00e8mes tirent parti du fait que certains calculs sont faciles \u00e0 ex\u00e9cuter par un petit ordinateur, mais presque impossibles \u00e0 reconstituer si on ne conna\u00eet que le r\u00e9sultat du calcul, m\u00eame en utilisant les algorithmes les plus sophistiqu\u00e9s et les superordinateurs les plus puissants. Par exemple, on peut facilement trouver deux nombres de 200 chiffres qui sont premiers et les multiplier. Bien que le nombre de 400 chiffres qui en r\u00e9sulte soit le produit de deux nombres premiers de 200 chiffres chacun, il est extr\u00eamement difficile de les identifier. La s\u00e9curit\u00e9 des \u00e9changes financiers internationaux dans notre soci\u00e9t\u00e9 actuelle repose grandement sur la cryptographie assur\u00e9e par les syst\u00e8mes \u00e0 cl\u00e9 publique. Nombre de transactions, qui sont actuellement cod\u00e9es en toute s\u00e9curit\u00e9, ne le seraient plus si la r\u00e9tro-ing\u00e9nierie du calcul \u00e9tait moins complexe. Cette situation pourrait se produire gr\u00e2ce aux ordinateurs quantiques, mais d\u2019autres m\u00e9thodes math\u00e9matiques ont d\u00e9j\u00e0 \u00e9t\u00e9 d\u00e9velopp\u00e9es pour l\u2019\u00e8re post-quantique.<\/p>\n\n\n\n<p>La courtepointe cryptographique fait r\u00e9f\u00e9rence au \u00ab codage \u00bb et au \u00ab d\u00e9codage \u00bb utilis\u00e9s dans de nombreux domaines. La conception de la courtepointe est plut\u00f4t traditionnelle, avec un motif central entour\u00e9 de panneaux matelass\u00e9s. En commen\u00e7ant par le centre et en allant vers l\u2019ext\u00e9rieur, on trouve :<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title has-background has-text-color has-primary-color\" style=\"background-color:#f4a811\">Cadenas central<\/summary><div class=\"wp-block-coblocks-accordion-item__content\" style=\"border-color:#f4a811\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Le cadenas central est le point de mire de la courtepointe et symbolise le th\u00e8me central de la s\u00e9curit\u00e9 et du secret. Le mat\u00e9riau principal du cadenas est identique \u00e0 celui du cadre de la courtepointe, ce qui cr\u00e9e une harmonie visuelle. Autour du cadenas, on peut voir des 0 et des 1; ce sont les \u00e9l\u00e9ments d\u2019un code binaire. Pouvez-vous retrouver ce qui y est dit ? \u00c0 titre indicatif, le code binaire utilise un codage ASCII de 8 bits !<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"881\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C881&#038;ssl=1\" alt=\"Cadenas central\" class=\"wp-image-5243\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C1002&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C294&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C751&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1200%2C1174&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1256&amp;ssl=1 1256w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>Autour du cadenas et du code binaire se cache un autre message. Les carr\u00e9s entourant le cadenas central indiquent les valeurs 0, 1 et 2 d\u2019un code ternaire avec des couleurs diff\u00e9rentes. Le code ternaire utilise le fait qu\u2019on peut former 27 nombres ternaires possibles \u00e0 partir de trois chiffres, soit presque autant que les lettres de l\u2019alphabet. Parvenez-vous \u00e0 d\u00e9chiffrer ce message ?<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link has-primary-color has-text-color has-background wp-element-button\" href=\"#answer-padlock\" style=\"background-color:#f4a811\">Avez-vous d\u00e9chiffr\u00e9 le code ?<\/a><\/div>\n<\/div>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"five-vignettes\">Cinq panneaux centraux<\/h4>\n\n\n\n<p>Chacun des cinq panneaux entourant le cadenas \u00e9voque une sc\u00e8ne diff\u00e9rente de l\u2019installation Math\u00e9mAlchimie, mais ils ont tous en commun la th\u00e9matique du cryptage des communications.<\/p>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title has-background has-text-color has-primary-color\" style=\"background-color:#f4a811\">Boulangerie<\/summary><div class=\"wp-block-coblocks-accordion-item__content\" style=\"border-color:#f4a811\">\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large coblocks-animate\" id=\"bakery\" data-coblocks-animation=\"slideInLeft\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&#038;ssl=1\" alt=\"\" class=\"wp-image-5255\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1152%2C1536&amp;ssl=1 1152w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C1200&amp;ssl=1 900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C400&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=150%2C200&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p>Ce panneau nous pr\u00e9sente la recette de la boulangerie Mandelbrot pour pr\u00e9parer un Mandelbrot, qui se traduit litt\u00e9ralement par \u00ab pain aux amandes \u00bb. La recette est repr\u00e9sent\u00e9e visuellement par une s\u00e9rie d\u2019illustrations.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-color has-text-color has-background wp-element-button\" href=\"#Mandelbrot-receipe\" style=\"background-color:#f4a811\">Avez-vous devin\u00e9 la recette ?<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title has-background has-text-color has-primary-color\" style=\"background-color:#f4a811\">Jardin<\/summary><div class=\"wp-block-coblocks-accordion-item__content\" style=\"border-color:#f4a811\">\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\" id=\"garden\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"697\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/garden-scene-bloc-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C697&#038;ssl=1\" alt=\"Panneau du Jardin dans la Courtepointe de la Cryptographie\" class=\"wp-image-5429\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/garden-scene-bloc-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C793&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/garden-scene-bloc-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C232&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/garden-scene-bloc-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C595&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/garden-scene-bloc-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1200%2C930&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/garden-scene-bloc-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1256&amp;ssl=1 1256w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Ce panneau met en \u00e9vidence le concept de cryptographie \u00e0 cl\u00e9 publique et l\u2019algorithme RSA en particulier. Les informations confidentielles sont repr\u00e9sent\u00e9es par les bulles sombres, tandis que le reste des bulles est rendu public pour que tout le monde puisse les entendre. En utilisant les informations confidentielles, notamment la factorisation de n en nombres premiers, le tamia parvient \u00e0 d\u00e9coder le message de l\u2019\u00e9cureuil. Nous avons utilis\u00e9 le langage des fleurs dans cette sc\u00e8ne qui se d\u00e9roule dans le jardin. Le design a \u00e9t\u00e9 finalis\u00e9 d\u00e9but janvier 2020, peu de temps apr\u00e8s l\u2019\u00e9meute au Capitole, et la fleur de lotus a \u00e9t\u00e9 choisie pour symboliser la tranquillit\u00e9 et l\u2019apaisement.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title has-background has-text-color has-primary-color\" style=\"background-color:#f4a811\">N\u0153ud-tique<\/summary><div class=\"wp-block-coblocks-accordion-item__content\" style=\"border-color:#f4a811\">\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized coblocks-animate\" id=\"knotical\" data-coblocks-animation=\"slideInLeft\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"754\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C754&#038;ssl=1\" alt=\"\" class=\"wp-image-5258\" style=\"width:349px;height:292px\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C858&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C251&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C643&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p>Ce bloc montre un marin utilisant des drapeaux de s\u00e9maphore pour transmettre la lettre \u00ab S \u00bb (pour \u00ab\u2009s\u00e9maphore\u2009\u00bb). Au XIX<sup>e<\/sup> si\u00e8cle, les s\u00e9maphores \u00e9taient tr\u00e8s r\u00e9pandus pour la transmission de messages entre les navires.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title has-background has-text-color has-primary-color\" style=\"background-color:#f4a811\">Phare<\/summary><div class=\"wp-block-coblocks-accordion-item__content\" style=\"border-color:#f4a811\">\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\" id=\"lighthouse\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&#038;ssl=1\" alt=\"Vignette du Phare\" class=\"wp-image-5333\" title=\"phare\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C400&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=150%2C200&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-cryptography-quilt-mathemalchemy-art-installation.jpg?w=900&amp;ssl=1 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p>Le phare diffuse un message en code Morse, faisant r\u00e9f\u00e9rence \u00e0 la lumi\u00e8re et aux math\u00e9matiques. Pouvez-vous deviner ce que cela signifie?<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-color has-text-color has-background wp-element-button\" href=\"#lighthouse-answer\" style=\"background-color:#f4a811\">valider votre r\u00e9ponse<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title has-background has-text-color has-primary-color\" style=\"background-color:#f4a811\">Tess (la tortue)<\/summary><div class=\"wp-block-coblocks-accordion-item__content\" style=\"border-color:#f4a811\">\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&#038;ssl=1\" alt=\"La Vignette de Tess sur la Courtepointe de la Cryptographie\" class=\"wp-image-5351\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1152%2C1536&amp;ssl=1 1152w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C1200&amp;ssl=1 900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C400&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=150%2C200&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/tortoise-kite-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p id=\"tortoise\">L&rsquo;<a href=\"https:\/\/mathemalchemy.org\/2022\/01\/11\/math-connections-tortoise\/\">histoire de Tess<\/a> a \u00e9t\u00e9 la premi\u00e8re sc\u00e8ne d\u00e9velopp\u00e9e pour l\u2019installation Math\u00e9mAlchimie. Le panneau de la couverture montrant cette sc\u00e8ne met en \u00e9vidence un cerf-volant orn\u00e9 d\u2019une cl\u00e9 suspendue. Cette image \u00e9voque non seulement la possibilit\u00e9 de d\u00e9verrouiller le cadenas central, mais aussi l\u2019exp\u00e9rience du cerf-volant et de la cl\u00e9 r\u00e9alis\u00e9e par Benjamin Franklin pour \u00e9tudier l\u2019\u00e9lectricit\u00e9. Gr\u00e2ce \u00e0 cette \u00e9lectricit\u00e9, Tess a d\u00e9clench\u00e9 l\u2019\u00e9closion de toutes les autres sc\u00e8nes.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"996\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C996&#038;ssl=1\" alt=\"Courtepointe de la Cryptographie\" class=\"wp-image-5240\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=925%2C1024&amp;ssl=1 925w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=271%2C300&amp;ssl=1 271w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C850&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1388%2C1536&amp;ssl=1 1388w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1850%2C2048&amp;ssl=1 1850w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1200%2C1328&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1568%2C1736&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"the-twenty-blocks\">Les vingt panneaux en p\u00e9riph\u00e9rie<\/h4>\n\n\n\n<p>Pendant la fabrication de la courtepointe, les panneaux \u00e9taient \u00e9tiquet\u00e9s de A \u00e0 T pour que nous puissions nous y r\u00e9f\u00e9rer facilement, malgr\u00e9 les grandes distances qui nous s\u00e9paraient. Commencez par le coin sup\u00e9rieur gauche, qui est le bloc A, et tournez dans le sens des aiguilles d\u2019une montre en suivant le motif de la courtepointe. Ces blocs ont \u00e9t\u00e9 class\u00e9s en quatre niveaux de complexit\u00e9 distincts :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Symboles fondamentaux et universellement reconnus \ud83d\udddd<\/li>\n\n\n\n<li>Histoire de la cryptographie \ud83d\udd4a<\/li>\n\n\n\n<li>Cryptographie avanc\u00e9e \ud83d\udd76<\/li>\n\n\n\n<li>Cryptographie math\u00e9matique moderne \u2743<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc A : Code de Hamming  <span style=\"color: inherit; font-size: 1em; font-family: var(--font-base, &quot;Lato&quot;, sans-serif);\">\ud83d\udd76<\/span> <\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"944\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C944&#038;ssl=1\" alt=\"Code de Hamming\" class=\"wp-image-5329\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=976%2C1024&amp;ssl=1 976w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=286%2C300&amp;ssl=1 286w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C806&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Ce panneau montre l\u2019\u00e9tape du \u00ab codage \u00bb du code de Hamming, un code correcteur d\u2019erreurs. L\u2019objectif des codes correcteurs d\u2019erreurs est de permettre au r\u00e9cepteur de corriger les \u00e9ventuelles alt\u00e9rations du message lors de sa transmission, de mani\u00e8re \u00e0 r\u00e9cup\u00e9rer le message original. Dans ce panneau, l\u2019exp\u00e9diteur ajoute des chiffres suppl\u00e9mentaires au message 0111, ce qui aidera le destinataire \u00e0 comprendre le message m\u00eame si un ou plusieurs chiffres ont \u00e9t\u00e9 accidentellement modifi\u00e9s. Pour le d\u00e9chiffrage, r\u00e9f\u00e9rez-vous au <a href=\"#Hamming-Code-revisited\">bloc K<\/a>!<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc B : Cha\u00eene de blocs \u2743<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"905\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/blockchain-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C905&#038;ssl=1\" alt=\"Blockchain\" class=\"wp-image-5332\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/blockchain-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1018%2C1024&amp;ssl=1 1018w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/blockchain-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=298%2C300&amp;ssl=1 298w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/blockchain-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/blockchain-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C772&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/blockchain-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/blockchain-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Ce panneau repr\u00e9sente la cha\u00eene de blocs, l\u2019infrastructure math\u00e9matique garantissant la s\u00e9curit\u00e9 des cryptomonnaies, telles que le <em>Bitcoin<\/em>.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc C : Chiffre de Vigen\u00e8re \ud83d\udd76<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"756\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/vignere-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C756&#038;ssl=1\" alt=\"Chiffre de Vigen\u00e8re\" class=\"wp-image-5338\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/vignere-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C860&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/vignere-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C252&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/vignere-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C645&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/vignere-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Blaise de Vigen\u00e8re est c\u00e9l\u00e8bre pour avoir \u00e9crit le <em>Traict\u00e9 des Chiffres<\/em> en 1585. Dans cet ouvrage, il recense les m\u00e9thodes de chiffrement de substitution polyalphab\u00e9tique et fournit une cl\u00e9 pour les d\u00e9chiffrer. Dans le chiffre de Vigen\u00e8re, plusieurs d\u00e9calages de l\u2019alphabet sont utilis\u00e9s pour coder le message, ce qui le rend plus complexe que le chiffre de C\u00e9sar, qui n\u2019utilise qu\u2019un seul d\u00e9calage.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc D : <strong>Cryptographie de courbes elliptiques<\/strong> \u2743<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&#038;ssl=1\" alt=\"\" class=\"wp-image-5352\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1152%2C1536&amp;ssl=1 1152w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C1200&amp;ssl=1 900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C400&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=150%2C200&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/elliptic-curve-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Les courbes elliptiques sont d\u00e9finies par les \u00e9quations du type <em>y<\/em><sup>2<\/sup> = <em>x<\/em><sup>3<\/sup> + <em>ax<\/em> + <em>b<\/em>. La cryptographie par courbe elliptique est un syst\u00e8me de cryptage \u00e0 cl\u00e9 publique qui utilise le fait qu\u2019il est possible \u00ab d\u2019additionner \u00bb deux points sur une courbe elliptique pour en obtenir un troisi\u00e8me. Le panneau illustre comment additionner un point P \u00e0 lui-m\u00eame.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc E : <strong>Prise \u00e9lectrique<\/strong> \ud83d\udddd<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"973\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/electric-plug-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C973&#038;ssl=1\" alt=\"Prise \u00e9lectrique\" class=\"wp-image-5342\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/electric-plug-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=947%2C1024&amp;ssl=1 947w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/electric-plug-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=277%2C300&amp;ssl=1 277w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/electric-plug-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C831&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/electric-plug-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>La cryptographie moderne repose sur l\u2019utilisation d\u2019ordinateurs, qui eux-m\u00eames d\u00e9pendent de l\u2019\u00e9lectricit\u00e9. Ce panneau est aussi li\u00e9 \u00e0 celui du cerf-volant et de la cl\u00e9 de Tess.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc F : Pigeon voyageur et lettres scell\u00e9es \ud83d\udd4a<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"887\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigeon-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C887&#038;ssl=1\" alt=\"Pigeon\" class=\"wp-image-5334\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigeon-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C1009&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigeon-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C296&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigeon-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C756&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigeon-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Avant l\u2019av\u00e8nement de la cryptographie moderne, les messages \u00e9taient prot\u00e9g\u00e9s par des m\u00e9thodes complexes de pliage et l&rsquo;apposition d&rsquo;un sceau, qui permettaient de d\u00e9tecter si quelqu\u2019un avait ouvert la lettre. Cette m\u00e9thode \u00e9tait en vogue aux XVIIe et XVIIIe si\u00e8cles, lorsque les lettres \u00e9taient pli\u00e9es sur elles-m\u00eames, sans utiliser d&rsquo;enveloppe. De nombreuses personnes ont d\u00e9velopp\u00e9 leurs propres m\u00e9thodes de verrouillage des lettres. Les pigeons voyageurs ont \u00e9t\u00e9 utilis\u00e9s depuis l\u2019Antiquit\u00e9 jusqu\u2019\u00e0 l\u2019apparition du t\u00e9l\u00e9phone pour transporter des messages sur de longues distances.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc G : Cryptage \u00e0 sac \u00e0 dos \ud83d\udd76<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"980\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knapsack-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C980&#038;ssl=1\" alt=\"Sac \u00e0 dos\" class=\"wp-image-5359\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knapsack-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=940%2C1024&amp;ssl=1 940w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knapsack-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=275%2C300&amp;ssl=1 275w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knapsack-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C836&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knapsack-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Dans le probl\u00e8me du sac \u00e0 dos, une personne met un ensemble de poids dans un sac. La question est de savoir si l\u2019on peut d\u00e9terminer les poids utilis\u00e9s, en connaissant seulement la masse totale du sac et les poids disponibles. Par exemple, si les poids sont de 1, 2, 5 ou 10 livres et que le sac \u00e0 dos p\u00e8se 16 livres, pouvez-vous d\u00e9terminer quels poids ont \u00e9t\u00e9 utilis\u00e9s ? Et si chaque poids ne pouvait \u00eatre utilis\u00e9 qu\u2019une seule fois ? Dans un syst\u00e8me simple de cryptage du sac \u00e0 dos, le message cach\u00e9 correspond aux poids contenus dans le sac, et le message crypt\u00e9 repr\u00e9sente la masse totale du sac. Bien que des syst\u00e8mes de cryptage \u00e0 dos portatif rudimentaires aient d\u00e9j\u00e0 \u00e9t\u00e9 compromis, certains syst\u00e8mes de cryptage \u00e0 dos portatif modernes sont consid\u00e9r\u00e9s comme des candidats prometteurs pour la cryptographie post-quantique.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc H : Syst\u00e8mes cryptographiques fond\u00e9s sur les r\u00e9seaux euclidiens \u2743 <\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"801\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lattice-based-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=801%2C1024&#038;ssl=1\" alt=\"Cryptographie bas\u00e9e sur un r\u00e9seau euclidien\" class=\"wp-image-5358\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lattice-based-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=801%2C1024&amp;ssl=1 801w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lattice-based-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=235%2C300&amp;ssl=1 235w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lattice-based-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C982&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lattice-based-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 801px) 100vw, 801px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Les syst\u00e8mes cryptographiques fond\u00e9s sur les r\u00e9seaux euclidiens, comme GGH et NTRU, utilisent des probl\u00e8mes complexes concernant les r\u00e9seaux pour dissimuler des messages. L\u2019un des d\u00e9fis les plus complexes en mati\u00e8re de r\u00e9seaux consiste \u00e0 d\u00e9terminer le vecteur le plus court. Il s\u2019agit de trouver une combinaison de vecteurs (par exemple [4 ; 7] et [7 ; 11]) ayant des coefficients plus petits. Parfois, une \u00ab mauvaise \u00bb base (comme celle des vecteurs donn\u00e9s) sert de cl\u00e9 publique pour le cryptage, tandis qu\u2019une \u00ab bonne \u00bb base de vecteurs plus courts sert de cl\u00e9 priv\u00e9e pour le d\u00e9cryptage. Dans ce bloc, on peut voir un r\u00e9seau dont la base publique des vecteurs longs est clairement indiqu\u00e9e, alors que la base priv\u00e9e est moins \u00e9vidente. Les syst\u00e8mes cryptographiques fond\u00e9s sur les r\u00e9seaux constituent des candidats importants en cryptographie post-quantique.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc I : Double h\u00e9lice d\u2019ADN \ud83d\udddd<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"970\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/dna-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C970&#038;ssl=1\" alt=\"ADN\" class=\"wp-image-5326\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/dna-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=950%2C1024&amp;ssl=1 950w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/dna-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=278%2C300&amp;ssl=1 278w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/dna-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C828&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/dna-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>L\u2019ADN, c\u2019est le code de la vie ! Ce bloc fait \u00e9galement r\u00e9f\u00e9rence \u00e0 la <a href=\"https:\/\/mathemalchemy.org\/fr\/?p=10756\">sc\u00e8ne N\u0153ud-tique de l&rsquo;installation<\/a> (avec le bateau dans la baie) et \u00e0 ses enchev\u00eatrements de n\u0153uds. L\u2019ADN se replie sur lui-m\u00eame afin de pouvoir entrer dans les cellules. Le \u00ab d\u00e9nouer \u00bb pour qu\u2019il puisse \u00eatre r\u00e9pliqu\u00e9 constitue un probl\u00e8me math\u00e9matique d\u00e9licat.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc J : Chiffre de C\u00e9sar \ud83d\udd4a<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"922\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/caesar-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C922&#038;ssl=1\" alt=\"Chiffre de C\u00e9sar\" class=\"wp-image-5349\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/caesar-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1000%2C1024&amp;ssl=1 1000w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/caesar-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=293%2C300&amp;ssl=1 293w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/caesar-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C787&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/caesar-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Bien que Jules C\u00e9sar ait \u00e9voqu\u00e9 une m\u00e9thode de transmission de messages militaires dans sa Guerre des Gaules, c\u2019est Su\u00e9tone qui a r\u00e9v\u00e9l\u00e9 que C\u00e9sar \u00e9crivait \u00e0 ses proches en rempla\u00e7ant une lettre de l\u2019alphabet par une autre 3 positions plus loin, sans modifier l\u2019ordre alphab\u00e9tique.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc K : Code de Hamming \ud83d\udd76<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\" id=\"Hamming-Code-revisited\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1022\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-revisited-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C1022&#038;ssl=1\" alt=\"Code de Hamming revisit\u00e9\" class=\"wp-image-5330\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-revisited-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=902%2C1024&amp;ssl=1 902w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-revisited-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=264%2C300&amp;ssl=1 264w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-revisited-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C872&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/hamming-code-revisited-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Dans ce bloc, nous voyons le message \u00e9mis par le panneau A, situ\u00e9 en haut \u00e0 gauche. Le message, qui avait \u00e9t\u00e9 pr\u00e9c\u00e9demment compl\u00e9t\u00e9 par des informations additionnelles, a \u00e9t\u00e9 re\u00e7u avec une erreur. Ce panneau illustre la correction de cette derni\u00e8re. Apr\u00e8s quelques op\u00e9rations math\u00e9matiques, le message initial est retrouv\u00e9. L\u2019utilisation de codes correcteurs d\u2019erreurs, comme le code de Hamming, permet de v\u00e9rifier que les messages re\u00e7us sont les m\u00eames que ceux envoy\u00e9s. On les utilise dans plusieurs applications, comme les num\u00e9ros de v\u00e9rification sur les cartes de cr\u00e9dit ou les codes \u00e0 barres. Le message entre ces deux panneaux fait r\u00e9f\u00e9rence au mois o\u00f9 nous nous sommes enfin r\u00e9unis pour terminer l\u2019installation. Il est consid\u00e9r\u00e9 comme un chiffre porte-bonheur !<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-color has-text-color has-background wp-element-button\" href=\"#hamming-code-answer\" style=\"background-color:#f4a811\">avez-vous le num\u00e9ro chanceux ?<\/a><\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc L : Algorithme rho de Pollard \u2743 <\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"671\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pollard-s-rho-algorithm-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C671&#038;ssl=1\" alt=\"Algorithme Rho de Pollard\" class=\"wp-image-5336\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pollard-s-rho-algorithm-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C764&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pollard-s-rho-algorithm-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C224&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pollard-s-rho-algorithm-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C573&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pollard-s-rho-algorithm-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=200%2C150&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pollard-s-rho-algorithm-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Certains syst\u00e8mes de cryptographie s\u2019appuient sur le fait que la factorisation de grands nombres est un probl\u00e8me difficile. Dans le cas du syst\u00e8me RSA, par exemple, la cl\u00e9 publique est un nombre composite qui est le produit de deux grands nombres premiers. Ces derniers constituent la cl\u00e9 priv\u00e9e secr\u00e8te servant \u00e0 d\u00e9chiffrer les messages. Par cons\u00e9quent, si chacun pouvait facilement factoriser, d\u00e9coder les messages deviendrait un jeu d\u2019enfant. L\u2019algorithme rho de Pollard est une m\u00e9thode permettant de factoriser les nombres qui sont le produit de deux nombres premiers. Il tire son nom de la lettre grecque rho (\u03c1), car il s\u2019agit d\u2019un processus it\u00e9ratif qui finit par cr\u00e9er un cycle, qui ressemble \u00e0 la lettre \u03c1. Au cas o\u00f9 vous vous poseriez la question, cet algorithme n\u2019est pas assez efficace pour attaquer le cryptage RSA, compte tenu de la taille des nombres premiers actuellement utilis\u00e9s.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc M : Machine Enigma \ud83d\udd76<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"714\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/enigma-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C714&#038;ssl=1\" alt=\"La machine Enigma\" class=\"wp-image-5327\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/enigma-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C812&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/enigma-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C238&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/enigma-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C609&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/enigma-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Thomas Edison avait eu l\u2019id\u00e9e d\u2019utiliser des rotors comme disques de chiffrement, mais on ignore dans quelle mesure ce syst\u00e8me a \u00e9t\u00e9 utilis\u00e9. L\u2019utilisation la plus connue de ce syst\u00e8me est le d\u00e9calage impliquant le mouvement des rotors, ainsi que le syst\u00e8me de rotor de la machine Enigma, utilis\u00e9e par les Allemands durant la Seconde Guerre mondiale.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc N : Chiffre des francs-ma\u00e7ons \ud83d\udd4a<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1012\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigpen-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C1012&#038;ssl=1\" alt=\"Chiffre des francs-ma\u00e7ons\" class=\"wp-image-5335\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigpen-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=911%2C1024&amp;ssl=1 911w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigpen-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=267%2C300&amp;ssl=1 267w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigpen-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C863&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/pigpen-cipher-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>L\u2019origine du chiffre des francs-ma\u00e7ons est inconnue en raison de sa simplicit\u00e9 et de son manque d\u2019utilit\u00e9 dans la soci\u00e9t\u00e9 moderne. Il utilise une base compos\u00e9e de deux grilles de morpion, ainsi que de deux grandes grilles en forme de X, avec un point ou non dans chaque emplacement. Une lettre de l\u2019alphabet est attribu\u00e9e \u00e0 chaque case et une r\u00e9plique de \u00ab stylo \u00bb sert \u00e0 repr\u00e9senter la lettre.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc O : \u2124=<em>p<\/em>\u2124<sup>x<\/sup> est cyclique \u2743 <\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"1006\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cyclic-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C1006&#038;ssl=1\" alt=\"Repr\u00e9senter des entiers modulo un nombre premier\" class=\"wp-image-5325\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cyclic-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=916%2C1024&amp;ssl=1 916w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cyclic-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=268%2C300&amp;ssl=1 268w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cyclic-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C859&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cyclic-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Ce panneau illustre la structure particuli\u00e8re des nombres entiers modulo un nombre premier (en l\u2019occurrence, le nombre premier est 19). Si l\u2019on exclut 0, tout nombre modulo 19 est une puissance de 2 ; c\u2019est ce que cela signifie lorsqu\u2019on dit que 2 est une racine primitive modulo 19. Chaque nombre premier poss\u00e8de une racine primitive. Les racines primitives sont utilis\u00e9es dans l\u2019\u00e9change de cl\u00e9s Diffie-Hellman, o\u00f9 deux personnes peuvent communiquer des informations publiquement, mais en retirent un secret partag\u00e9.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc P : Quipu \ud83d\udd4a<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"679\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/quipu-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C679&#038;ssl=1\" alt=\"Quipu\" class=\"wp-image-5337\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/quipu-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C773&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/quipu-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C227&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/quipu-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C580&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/quipu-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=200%2C150&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/quipu-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Les anciens Incas utilisaient des motifs de n\u0153uds sur des cordes pour coder des nombres. Comme dans un quipu historique, les n\u0153uds de ce panneau enregistrent des nombres. Il est possible d\u2019additionner les valeurs de chaque brin. Il pourrait s\u2019agir d\u2019une sorte de comptabilit\u00e9 ou de correction d\u2019erreurs.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-circular\"><a class=\"wp-block-button__link has-primary-color has-text-color has-background wp-element-button\" href=\"#quipu-answer\" style=\"background-color:#f4a811\"> Avez-vous d\u00e9cod\u00e9 le quipu ?<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc Q : Bouclier \ud83d\udddd<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"933\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/shield-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C933&#038;ssl=1\" alt=\"Bouclier\" class=\"wp-image-5356\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/shield-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=988%2C1024&amp;ssl=1 988w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/shield-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=289%2C300&amp;ssl=1 289w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/shield-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C796&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/shield-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Ce panneau illustre l\u2019importance cruciale de la cryptographie en mati\u00e8re de protection des donn\u00e9es. Nous nous appuyons sur celle-ci pour prot\u00e9ger nos secrets, comme nos num\u00e9ros de cartes de cr\u00e9dit et d\u2019autres renseignements personnels. Le vol de secrets est une pratique ancestrale qu\u2019il faut combattre.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc R : Scytale \ud83d\udd4a<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"935\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/scytale-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C935&#038;ssl=1\" alt=\"Scytale\" class=\"wp-image-5357\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/scytale-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=986%2C1024&amp;ssl=1 986w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/scytale-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=289%2C300&amp;ssl=1 289w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/scytale-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C797&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/scytale-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Pour dissimuler un message, on l\u2019\u00e9crit sur un ruban de papier mince qu\u2019on enroule autour d\u2019un b\u00e2ton. Une fois le papier retir\u00e9 du b\u00e2ton, les lettres se sont m\u00e9lang\u00e9es. La cl\u00e9 pour d\u00e9chiffrer le message consiste \u00e0 conna\u00eetre le diam\u00e8tre du b\u00e2ton \u00e0 employer. En raison des limites techniques de l\u2019\u00e9poque (du 1<sup>er<\/sup> au 12<sup>e<\/sup> si\u00e8cle apr\u00e8s J.C), il \u00e9tait difficile d\u2019obtenir un cylindre uniforme d\u2019un diam\u00e8tre donn\u00e9.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Bloc S : Code Morse tricott\u00e9 \ud83d\udddd<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"827\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knitting-morse-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=827%2C1024&#038;ssl=1\" alt=\"Tricotage en code Morse\" class=\"wp-image-5353\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knitting-morse-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=827%2C1024&amp;ssl=1 827w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knitting-morse-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=242%2C300&amp;ssl=1 242w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knitting-morse-code-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C950&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knitting-morse-code-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 827px) 100vw, 827px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Dans ce bloc, on a incrust\u00e9 du code Morse dans des tricots afin de pouvoir communiquer. Un message est encod\u00e9 dans les c\u00e2bles, et un autre dans la couleur des fils utilis\u00e9s. Les femmes ont dissimul\u00e9 des messages en morse dans leurs tricots en nouant de la laine pendant la Premi\u00e8re et la Seconde Guerre mondiale. Dans le livre de Charles Dickens intitul\u00e9 \u00ab <em>Un conte de deux villes<\/em> \u00bb, Madame Defarge tricote des noms sur ses \u00e9charpes. Les patrons de tricot des pi\u00e8ces figurant sur ce panneau sont une sorte de code. Il faut conna\u00eetre la cl\u00e9 pour comprendre les instructions.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-primary-color has-text-color has-background wp-element-button\" href=\"#knitting-morse-answer\" style=\"background-color:#f4a811\">Avez-vous d\u00e9cod\u00e9 le tricot ?<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Block T : Empreinte digitale \ud83d\udddd<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"787\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/fingerprint-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=787%2C1024&#038;ssl=1\" alt=\"Empreinte digitale\" class=\"wp-image-5350\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/fingerprint-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=787%2C1024&amp;ssl=1 787w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/fingerprint-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=231%2C300&amp;ssl=1 231w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/fingerprint-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C999&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/fingerprint-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1181%2C1536&amp;ssl=1 1181w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/fingerprint-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 787px) 100vw, 787px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Chacun de nous poss\u00e8de un code unique d\u2019empreintes digitales. D\u00e8s 850, les marchands arabes ont remarqu\u00e9 que les Chinois authentifiaient leurs contrats \u00e0 l\u2019aide de leur empreinte digitale. C\u2019est en Inde, vers 1858, que Sir Henry T. Head a d\u00e9couvert ce ph\u00e9nom\u00e8ne. Une solide base scientifique lui a \u00e9t\u00e9 apport\u00e9e pr\u00e8s de 30 ans plus tard. Il fallait en partie savoir identifier et classer les cr\u00eates et les motifs. Parmi les r\u00e9cits utilisant les empreintes digitales, citons \u00ab <em>Pudd\u2019nghead Wilson<\/em>\u2009\u00bb de Mark Twain, paru en 1893, ainsi qu\u2019une histoire de Sherlock Holmes \u00e9crite par Sir Conan Doyle en 1903, qui se d\u00e9roule en 1894. Aujourd\u2019hui, nous sommes nombreux \u00e0 utiliser nos empreintes digitales comme cl\u00e9 pour ouvrir des appareils \u00e9lectroniques au lieu d\u2019un mot de passe traditionnel.<\/p>\n<\/div>\n<\/div>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"the-quilt-binding\">La reliure de la courtepointe<\/h3>\n\n\n\n<p>La reliure de la courtepointe incorpore un autre code : celui des tissus employ\u00e9s pour sa confection. Comme nous avons produit la courtepointe dans trois lieux distincts (et distants), nous avons d\u00e9sign\u00e9 chaque tissu \u00e0 l\u2019aide des lettres de l\u2019alphabet. Il s\u2019est av\u00e9r\u00e9 qu\u2019il y avait exactement 26 tissus au total, soit le nombre exact de lettres dans l\u2019alphabet !<\/p>\n\n\n\n<figure class=\"wp-block-image alignfull size-large coblocks-animate\" data-coblocks-animation=\"slideInBottom\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"110\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=900%2C110&#038;ssl=1\" alt=\"\" class=\"wp-image-5433\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C125&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C37&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C94&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1536%2C188&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1200%2C147&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1568%2C192&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/code-binding-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1822&amp;ssl=1 1822w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<p>En examinant le bord de la courtepointe, vous remarquerez d\u2019abord les 26 tissus utilis\u00e9s pour la reliure. C\u2019est la \u00ab cl\u00e9 \u00bb de notre code, les tissus de A \u00e0 Z. Puis, en continuant \u00e0 faire le tour de la courtepointe, nous avons les initiales de chacun des 24 membres de l\u2019\u00e9quipe Math\u00e9mAlchimie (par ordre alphab\u00e9tique de nom de famille). Nous avons utilis\u00e9 le tissu blanc (Z) comme espace entre chaque s\u00e9rie d\u2019initiales puisque personne n\u2019a un nom commen\u00e7ant par Z.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"answers\">R\u00e9ponses<\/h2>\n\n\n\n<p>Avertissement : la courtepointe cryptographique a \u00e9t\u00e9 produite par l\u2019universit\u00e9 Duke, donc dans un contexte anglophone. Les \u00e9nigmes sont \u00e9galement en anglais, mais des traductions sont fournies dans les solutions.<\/p>\n\n\n\n<p>Ne regardez pas avant d&rsquo;avoir fini ! Mais si vous \u00eates s\u00fbr&#8230;<\/p>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Le code binaire autour du cadenas r\u00e9v\u00e8le\u2026<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p><em style=\"font-size: 1em; color: var(--wp--preset--color--foreground); font-family: var(--font-base, \" lato=\"\" sans-serif=\"\">you are a mathematician (vous \u00eates un math\u00e9maticien)<\/em> <\/p>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\"><span style=\"font-family: var(--font-base, &quot;Lato&quot;, sans-serif);\">Le code ternaire bas\u00e9 sur les couleurs entourant le cadenas indique<\/span>&#8230;<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p><em>math is beautiful (les math\u00e9matiques sont belles)<\/em><\/p>\n<\/div><\/details><\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">La recette des Mandelbrot est&#8230;<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p id=\"Mandelbrot-receipe\"><span style=\"font-size: 1em; color: var(--wp--preset--color--foreground); font-family: var(--font-base, \" lato=\"\" sans-serif=\"\">1 tasse d&rsquo;amandes grill\u00e9es effil\u00e9es + \u00bd cuill\u00e8re \u00e0 caf\u00e9 de sel + \u00bd cuill\u00e8re \u00e0 caf\u00e9 de bicarbonate de soude + 2 cuill\u00e8res \u00e0 caf\u00e9 de levure chimique + 3 \u00bd tasses de farine + 1 \u00bd cuill\u00e8re \u00e0 caf\u00e9 de vanille + \u00bd tasse d&rsquo;huile v\u00e9g\u00e9tale + 1 tasse de sucre + 3 \u0153ufs + 2 cuill\u00e8res \u00e0 caf\u00e9 de zeste d&rsquo;orange r\u00e2p\u00e9.<\/span><\/p>\n\n\n\n<p><span style=\"font-size: 1em; color: var(--wp--preset--color--foreground); font-family: var(--font-base, \" lato=\"\" sans-serif=\"\">Former une b\u00fbche de 11 pouces et la faire cuire au four \u00e0 350\u00b0 pendant 30 \u00e0 40 minutes. Couper la b\u00fbche en tranches de 3\/4 pouce et cuire au four pendant 12 minutes de plus.<\/span><\/p>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\"><span style=\"font-family: var(--font-base, &quot;Lato&quot;, sans-serif);\">Le code Morse du phare se traduit par&#8230;<\/span><\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p><em>mathematics illuminates the world <\/em>(les math\u00e9matiques \u00e9clairent le monde)<\/p>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Le message num\u00e9rique \u00e0 \u00eatre envoy\u00e9 est&#8230;<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p class=\"has-text-align-center has-huge-font-size\" id=\"hamming-code-answer\">7<\/p>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Les fils du quipu consignent\u2026<\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p>1000+729 et 1728+1, ce qui montre qu\u2019on peut \u00e9crire 1729 comme la somme de deux cubes de deux mani\u00e8res diff\u00e9rentes. Dans une c\u00e9l\u00e8bre anecdote datant de 191, Srinavasa Ramanujan a mentionn\u00e9 ce fait \u00e0 G.H. Hardy.<\/p>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-coblocks-accordion\">\n<div class=\"wp-block-coblocks-accordion-item\"><details><summary class=\"wp-block-coblocks-accordion-item__title\">Les messages tricot\u00e9s sont&#8230; <\/summary><div class=\"wp-block-coblocks-accordion-item__content\">\n<p><em>math is fun and I agree (les maths, c&rsquo;est amusant et je suis d&rsquo;accord) <\/em><\/p>\n<\/div><\/details><\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left has-primary-color has-text-color has-huge-font-size\" id=\"read-more-about-the-cryptography-quilt\">En savoir plus sur la courtepointe cryptographique<\/h3>\n\n\n<div class=\"wp-block-newspack-blocks-carousel slides-per-view-2 wpnbpc\" id=\"wp-block-newspack-carousel__1\" data-current-post-id=10241 data-slides-per-view=2 data-slide-count=3 data-aspect-ratio=0.75><div class=\"swiper\"><div class=\"swiper-wrapper\">\n\t\t\t<article data-post-id=\"12729\" class=\"post-has-image swiper-slide tag-blockchain-fr tag-bouclier tag-chiffre-de-cesar tag-code-hamming tag-code-morse tag-courtepointe tag-courtepointe-cryptographie tag-empreinte-digitale tag-enigma-fr tag-quipu-fr tag-scytale-fr tag-tricot category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2023\/11\/07\/petite-courtepointe-cryptographique-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"900\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?fit=900%2C900&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Petite courtepointe cryptographique &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?w=1256&amp;ssl=1 1256w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=1200%2C1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=800%2C800&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=400%2C400&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?resize=200%2C200&amp;ssl=1 200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"10158\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/cryptography-quilt-boston-mathemalchemy-math-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?fit=1256%2C1256&amp;ssl=1\" data-orig-size=\"1256,1256\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"cryptography-quilt-boston-mathemalchemy-math-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2023\/01\/cryptography-quilt-boston-mathemalchemy-math-art-installation.jpg?fit=900%2C900&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2023\/11\/07\/petite-courtepointe-cryptographique-connexions-mathematiques\/\" rel=\"bookmark\">Petite courtepointe cryptographique &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10252\" class=\"post-has-image swiper-slide tag-courtepointe tag-courtepointe-cryptographie tag-couture category-fabrication-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/04\/19\/cryptography-quilt-fabrication\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"900\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?fit=900%2C900&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Courtepointe cryptographique &#8211; Fabrication\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?w=1900&amp;ssl=1 1900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=1536%2C1536&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=1200%2C1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=800%2C800&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=400%2C400&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?resize=1568%2C1568&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9216\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?fit=1900%2C1900&amp;ssl=1\" data-orig-size=\"1900,1900\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/04\/process-cryptographic-quilt-dominique-ehrman-mathemalchemy-art-project.jpg?fit=900%2C900&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/04\/19\/cryptography-quilt-fabrication\/\" rel=\"bookmark\">Courtepointe cryptographique &#8211; Fabrication<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10241\" class=\"post-has-image swiper-slide tag-blockchain-fr tag-bouclier tag-chiffre-de-cesar tag-code-hamming tag-code-morse tag-courtepointe tag-courtepointe-cryptographie tag-empreinte-digitale tag-enigma-fr tag-quipu-fr tag-scytale-fr tag-tricot category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/23\/cryptographie-quilt-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"881\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?fit=900%2C881&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Courtepointe cryptographique &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?w=1256&amp;ssl=1 1256w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=300%2C294&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1024%2C1002&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=768%2C751&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?resize=1200%2C1174&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9656\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/central-padlock-cryptography-quilt-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?fit=1256%2C1229&amp;ssl=1\" data-orig-size=\"1256,1229\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"central-padlock-cryptography-quilt-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?fit=300%2C294&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/central-padlock-cryptography-quilt-mathemalchemy-art-installation.jpg?fit=900%2C881&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/23\/cryptographie-quilt-connexions-mathematiques\/\" rel=\"bookmark\">Courtepointe cryptographique &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t<\/div><button class=\"swiper-button swiper-button-prev\" aria-label=\"Diapositive pr\u00e9c\u00e9dente\" ><\/button><button class=\"swiper-button swiper-button-next\" aria-label=\"Diapositive suivante\" ><\/button><\/div><div class=\"swiper-pagination-bullets\" ><button option=\"0\" class=\"swiper-pagination-bullet\" aria-label=\"Aller \u00e0 la diapositive 1\" selected><\/button><button option=\"1\" class=\"swiper-pagination-bullet\" aria-label=\"Aller \u00e0 la diapositive 2\" ><\/button><button option=\"2\" class=\"swiper-pagination-bullet\" aria-label=\"Aller \u00e0 la diapositive 3\" ><\/button><\/div><\/div>\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-text-align-right has-large-font-size\" id=\"next-mathematical-connections-in-the-great-doodle-page\"><a href=\"https:\/\/mathemalchemy.org\/fr\/?p=10712\">Suivant : Connexions math\u00e9matiques de la grande page du gribouillage<\/a><\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full is-style-default coblocks-animate\" data-coblocks-animation=\"slideInRight\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"472\" height=\"472\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/02\/great-doodle-page-mathemalchemy-art-installation.png?resize=472%2C472&#038;ssl=1\" alt=\"\" class=\"wp-image-5863\" title=\"icone-Mathemalchemy\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/02\/great-doodle-page-mathemalchemy-art-installation.png?w=472&amp;ssl=1 472w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/02\/great-doodle-page-mathemalchemy-art-installation.png?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/02\/great-doodle-page-mathemalchemy-art-installation.png?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/02\/great-doodle-page-mathemalchemy-art-installation.png?resize=400%2C400&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/02\/great-doodle-page-mathemalchemy-art-installation.png?resize=200%2C200&amp;ssl=1 200w\" sizes=\"auto, (max-width: 472px) 100vw, 472px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/back-to-mathemalchemy.jpg?w=900&#038;ssl=1\" alt=\"Mathemalchemy Scenes\"><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/mathemalchemy.org\/fr\/connexions-mathematiques\/\">explorer les connexions math\u00e9matiques<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull has-parallax\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-primary-background-color has-background-dim-80 has-background-dim\"><\/span><div class=\"wp-block-cover__image-background wp-image-5240 has-parallax\" style=\"background-position:50% 50%;background-image:url(https:\/\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/cryptography-quilt-mathemalchemy-art-installation.jpg)\"><\/div><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<h2 class=\"wp-block-heading has-text-align-center has-background-color has-text-color has-huge-font-size\" id=\"explore-mathematical-connections-in-other-scenes\">Explorez les connexions math\u00e9matiques d&rsquo;autres sc\u00e8nes<\/h2>\n\n\n<div class=\"wp-block-newspack-blocks-carousel wp-block-newspack-blocks-carousel__autoplay-playing slides-per-view-1 wpnbpc\" id=\"wp-block-newspack-carousel__2\" data-current-post-id=10911 data-slides-per-view=1 data-slide-count=14 data-aspect-ratio=0.75 data-autoplay=1 data-autoplay_delay=5><button aria-label=\"Mettre le diaporama en pause\" class=\"swiper-button swiper-button-pause\"><\/button><button aria-label=\"Lire le diaporama\" class=\"swiper-button swiper-button-play\"><\/button><div class=\"swiper\"><div class=\"swiper-wrapper\">\n\t\t\t<article data-post-id=\"12767\" class=\"post-has-image swiper-slide tag-groupes-de-papiers-peints tag-tables-a-frises category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2024\/05\/14\/tables-a-frises-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"324\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?fit=900%2C324&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Tables \u00e0 frises &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?w=1300&amp;ssl=1 1300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?resize=300%2C108&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?resize=1024%2C369&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?resize=768%2C277&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?resize=1200%2C433&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"12005\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/2024\/05\/14\/tables-a-frises-connexions-mathematiques\/frieze_tables_mouse-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?fit=1300%2C469&amp;ssl=1\" data-orig-size=\"1300,469\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Frieze_Tables_mouse\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?fit=300%2C108&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2024\/05\/Frieze_Tables_mouse.png?fit=900%2C324&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2024\/05\/14\/tables-a-frises-connexions-mathematiques\/\" rel=\"bookmark\">Tables \u00e0 frises &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10788\" class=\"post-has-image swiper-slide tag-archimedes-fr tag-archimedes-fr tag-ecoulement-laminaire tag-cavalcade-fr tag-convergent tag-diagramme-de-venn tag-emmy-noether-fr tag-emmy-noether-fr tag-eureka-fr tag-eureka-fr tag-flocons-de-neige-de-koch tag-galois-fr tag-galois-fr tag-geometrie tag-gerrymandering-fr tag-gerrymandering-fr tag-groupes-de-papiers-peints tag-henry-segerman-fr tag-henry-segerman-fr tag-katherine-johnson-fr tag-katherine-johnson-fr tag-le-chat-darnold tag-lemme-dextension-de-dehn tag-martin-gardner-fr tag-martin-gardner-fr tag-melange-additif tag-minkowski-fr tag-minkowski-fr tag-mollusques tag-navajo-fr tag-navajo-fr tag-nombres-premiers tag-noeud-de-conway tag-noeuds tag-ondelette tag-papyrus-rhind tag-plan-de-fano tag-plan-hyperbolique tag-pythagore tag-tamis-deratosthanes tag-tetraedre-de-sierpinski tag-transformation-du-boulanger tag-triangulations-ideales-combinatoires tag-tricolorabilite tag-vladimir-arnold-fr tag-vortex-fr tag-william-thurston-fr tag-william-thurston-fr tag-yves-bouligand-fr tag-yves-bouligand-fr category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/19\/cavalcade-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?fit=768%2C1024&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Cavalcade &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?w=1000&amp;ssl=1 1000w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?resize=900%2C1200&amp;ssl=1 900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?resize=600%2C800&amp;ssl=1 600w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?resize=300%2C400&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?resize=150%2C200&amp;ssl=1 150w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" data-attachment-id=\"9600\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/silhouette-adult-teen-in-context-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?fit=1000%2C1333&amp;ssl=1\" data-orig-size=\"1000,1333\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"silhouette-adult-teen-in-context-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?fit=225%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-adult-teen-in-context-mathemalchemy-art-installation.jpg?fit=768%2C1024&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/19\/cavalcade-connexions-mathematiques\/\" rel=\"bookmark\">Cavalcade &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10716\" class=\"post-has-image swiper-slide tag-groupes-de-papiers-peints tag-henri-poincare-fr tag-les-solides-de-johnson tag-onde-voyageuse tag-terrasse tag-transformation-du-boulanger category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/12\/terrasse-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=900%2C675&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Terrasse &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?w=1900&amp;ssl=1 1900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=200%2C150&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1568%2C1176&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9500\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=1900%2C1425&amp;ssl=1\" data-orig-size=\"1900,1425\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Overview of the Terrace&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/terrace-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=900%2C675&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/12\/terrasse-connexions-mathematiques\/\" rel=\"bookmark\">Terrasse &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10919\" class=\"post-has-image swiper-slide tag-silhouettes-fr tag-tourbillons tag-vortex-fr category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/12\/silhouettes-et-tourbillons-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"793\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?fit=900%2C793&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Silhouettes et tourbillons &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?w=1900&amp;ssl=1 1900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?resize=300%2C264&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?resize=1024%2C902&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?resize=768%2C677&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?resize=1536%2C1353&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?resize=1200%2C1057&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?resize=1568%2C1381&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9597\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/silhouette-child-in-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?fit=1900%2C1674&amp;ssl=1\" data-orig-size=\"1900,1674\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"silhouette-child-in-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?fit=300%2C264&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/silhouette-child-in-mathemalchemy-art-installation.jpg?fit=900%2C793&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/12\/silhouettes-et-tourbillons-connexions-mathematiques\/\" rel=\"bookmark\">Silhouettes et tourbillons &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10917\" class=\"post-has-image swiper-slide tag-courbes-theta tag-geometrie tag-mecanisme-danticythere tag-noeuds tag-polyedres tag-scene-nebuleuse tag-surfaces-de-courbure-negatives tag-symetrie category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/environnement-noeud-tique-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"900\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?fit=900%2C900&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Environnement n\u0153ud-tique &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?w=1256&amp;ssl=1 1256w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=1200%2C1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=800%2C800&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=400%2C400&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?resize=200%2C200&amp;ssl=1 200w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9481\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?fit=1256%2C1256&amp;ssl=1\" data-orig-size=\"1256,1256\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"knotical-scene-knots-herons-boat-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/knotical-scene-knots-herons-boat-mathemalchemy-art-installation.jpg?fit=900%2C900&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/environnement-noeud-tique-connexions-mathematiques\/\" rel=\"bookmark\">Environnement n\u0153ud-tique &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10960\" class=\"post-has-image swiper-slide tag-abacus-fr tag-anneaux-borromeens tag-bouteille-klein tag-boutique-de-curiosites tag-cellules-de-voronoi tag-courbe-de-harriss tag-edmund-harriss-fr tag-fibration-de-hopf tag-groupes-de-papiers-peints tag-john-conway-fr tag-la-sphere-cornue-dalexandre tag-moebius-fr tag-noeud-de-conway tag-origami-fr tag-solides-darchimede tag-variete category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/gallerie-dart-et-de-curiosites-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"900\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?fit=900%2C900&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Galerie d&rsquo;art et de curiosit\u00e9s &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?w=1900&amp;ssl=1 1900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=1536%2C1536&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=1200%2C1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=800%2C800&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=400%2C400&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=200%2C200&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?resize=1568%2C1568&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9706\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/curio-shop-conway-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?fit=1900%2C1900&amp;ssl=1\" data-orig-size=\"1900,1900\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"curio-shop-conway-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/curio-shop-conway-mathemalchemy-art-installation.jpg?fit=900%2C900&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/gallerie-dart-et-de-curiosites-connexions-mathematiques\/\" rel=\"bookmark\">Galerie d&rsquo;art et de curiosit\u00e9s &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10956\" class=\"post-has-image swiper-slide tag-equation-donde tag-murale tag-octonion-fr tag-ondelette tag-pi-fr category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/graffiti-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"485\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?fit=900%2C485&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Graffiti &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?w=1113&amp;ssl=1 1113w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?resize=300%2C162&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?resize=1024%2C552&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?resize=768%2C414&amp;ssl=1 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9359\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/mathemalchemy-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?fit=1113%2C600&amp;ssl=1\" data-orig-size=\"1113,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;Mathemalchemy Group&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;https:\/\/mathemalchemy.org\/&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;Mathemalchemy&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Mathemalchemy\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;The mural in detail&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?fit=300%2C162&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/finished-mural-with-mahl-stick-mathemalchemy.jpg?fit=900%2C485&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/graffiti-connexions-mathematiques\/\" rel=\"bookmark\">Graffiti &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10712\" class=\"post-has-image swiper-slide tag-ada-lovelace-fr tag-alicia-boole-stott-fr tag-caroline-series-fr tag-doodle-fr tag-gladys-west-fr tag-marjorie-rice-fr tag-maryam-mirzakhani-fr tag-pavage tag-pentagone tag-sofya-kovelevskaya-fr tag-superbe-page-de-gribouillis category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/grande-page-du-gribouillage-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"399\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?fit=900%2C399&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Grande page du gribouillage &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?resize=300%2C133&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?resize=1024%2C454&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?resize=768%2C341&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?resize=1536%2C681&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?resize=1200%2C532&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?resize=1568%2C695&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9530\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/great-doodle-page-mathemalchemy-art-installation-5\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?fit=2000%2C887&amp;ssl=1\" data-orig-size=\"2000,887\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"great-doodle-page-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Edge of the Great Doodle Page&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?fit=300%2C133&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/great-doodle-page-mathemalchemy-art-installation.jpg?fit=900%2C399&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/grande-page-du-gribouillage-connexions-mathematiques\/\" rel=\"bookmark\">Grande page du gribouillage &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10968\" class=\"post-has-image swiper-slide tag-entiers-de-gauss tag-geometrie tag-geometrie-non-euclidienne tag-hexagone tag-jardin tag-la-sphere-cornue-dalexandre tag-les-solides-de-johnson tag-nombres-premiers tag-origami-fr tag-pavage tag-recif tag-tamis-deratosthanes category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/jardin-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"510\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/chipmunks-sorting-primes-mathemalchemy-art-installation.jpg?fit=700%2C510&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Jardin &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/chipmunks-sorting-primes-mathemalchemy-art-installation.jpg?w=700&amp;ssl=1 700w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/chipmunks-sorting-primes-mathemalchemy-art-installation.jpg?resize=300%2C219&amp;ssl=1 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" data-attachment-id=\"9309\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/chipmunks-sorting-primes-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/chipmunks-sorting-primes-mathemalchemy-art-installation.jpg?fit=700%2C510&amp;ssl=1\" data-orig-size=\"700,510\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"chipmunks-sorting-primes-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/chipmunks-sorting-primes-mathemalchemy-art-installation.jpg?fit=300%2C219&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/chipmunks-sorting-primes-mathemalchemy-art-installation.jpg?fit=700%2C510&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/jardin-connexions-mathematiques\/\" rel=\"bookmark\">Jardin &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10861\" class=\"post-has-image swiper-slide tag-livres tag-pile-de-livres category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/pile-de-livres-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"490\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?fit=900%2C490&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Pile de livres &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?w=1900&amp;ssl=1 1900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?resize=300%2C163&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?resize=1024%2C557&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?resize=768%2C418&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?resize=1536%2C836&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?resize=1200%2C653&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?resize=1568%2C853&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9475\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/stack-of-books-close-up-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?fit=1900%2C1034&amp;ssl=1\" data-orig-size=\"1900,1034\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"stack-of-books-close-up-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?fit=300%2C163&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/stack-of-books-close-up-mathemalchemy-art-installation.jpg?fit=900%2C490&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/pile-de-livres-connexions-mathematiques\/\" rel=\"bookmark\">Pile de livres &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10921\" class=\"post-has-image swiper-slide tag-dodecaedre tag-gps-fr tag-heptagone tag-lentilles-de-fresnel tag-phare tag-projection-stereographique tag-trajectoire-dodecaedrique category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/phare-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"475\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?fit=900%2C475&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Phare &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?w=2258&amp;ssl=1 2258w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?resize=300%2C158&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?resize=1024%2C541&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?resize=768%2C405&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?resize=1536%2C811&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?resize=2048%2C1081&amp;ssl=1 2048w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?resize=1200%2C633&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?resize=1568%2C828&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9728\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?fit=2258%2C1192&amp;ssl=1\" data-orig-size=\"2258,1192\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?fit=300%2C158&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/lighthouse-fresnel-stereographic-projection-mathemalchemy-art-installation.jpg?fit=900%2C475&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/phare-connexions-mathematiques\/\" rel=\"bookmark\">Phare &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10925\" class=\"post-has-image swiper-slide tag-cerf-volant-tetretraedrique tag-disque-de-poincare tag-flocons-de-neige-de-koch tag-fractale tag-fractales tag-hotel-hilbert tag-heptagone tag-integration-de-lebesgue tag-integration-de-riemann tag-paradoxe-de-zenon tag-pavage tag-plan-hyperbolique tag-tetraedre-de-sierpinski tag-tortue category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/tortue-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?fit=800%2C800&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Tortue &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?resize=400%2C400&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?resize=200%2C200&amp;ssl=1 200w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" data-attachment-id=\"9365\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/mathemalchemy-8-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?fit=800%2C800&amp;ssl=1\" data-orig-size=\"800,800\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;Mathemalchemy Group&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;https:\/\/mathemalchemy.org\/&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;Mathemalchemy&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Mathemalchemy\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;https:\/\/mathemalchemy.org\/&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2021\/08\/tortoise-story-mathematical-concepts-mathemalchemy-2.jpg?fit=800%2C800&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/tortue-connexions-mathematiques\/\" rel=\"bookmark\">Tortue &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10739\" class=\"post-has-image swiper-slide tag-arcs-de-balle tag-arcs-de-balle-convergent-et-divergent tag-convergent tag-divergent tag-nombres-premiers tag-solides-de-catalan category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/envolees-spheriques-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?fit=900%2C675&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Envol\u00e9es sph\u00e9riques &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?w=1900&amp;ssl=1 1900w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=200%2C150&amp;ssl=1 200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?resize=1568%2C1176&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9447\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?fit=1900%2C1425&amp;ssl=1\" data-orig-size=\"1900,1425\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ball-arches-temari-converging-diverging-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/ball-arches-temari-converging-diverging-mathemalchemy-art-installation.jpg?fit=900%2C675&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/11\/envolees-spheriques-connexions-mathematiques\/\" rel=\"bookmark\">Envol\u00e9es sph\u00e9riques &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t\n\t\t\t<article data-post-id=\"10911\" class=\"post-has-image swiper-slide tag-arnold-fr tag-equation-de-schroedinger tag-billard-pentagonal tag-boulangerie tag-cercles tag-cercles-dapollonius tag-schroedingers-cat-fr tag-disque-hyperbolique tag-fractale tag-geodesiques tag-geometrie tag-groupes-de-papiers-peints tag-heptagone tag-indras-pearls-les-perles-dindra tag-inversion-de-cercle tag-le-chat-darnold tag-mandelbrot-fr tag-marjorie-rice-fr tag-moser-fr tag-orbite-periodique tag-pavage tag-pentagone tag-systeme-dynamique tag-tessellation-fr tag-topologie tag-tsp-fr tag-variete tag-voies-ferrees category-concepts-math-de-mathemalchemy category-connections-mathematiques-de-mathemalchemy type-post post\">\n\t\t\t\t\t\t\t\t<figure class=\"post-thumbnail\">\n\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/05\/boulangerie-connexions-mathematiques\/\" rel=\"bookmark\" tabindex=\"-1\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"599\" src=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=900%2C599&amp;ssl=1\" class=\"image-fit-cover wp-post-image\" alt=\"Boulangerie &#8211; Connexions math\u00e9matiques\" object-fit=\"cover\" layout=\"fill\" srcset=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?w=2000&amp;ssl=1 2000w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1536%2C1024&amp;ssl=1 1536w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1200%2C800&amp;ssl=1 1200w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?resize=1568%2C1045&amp;ssl=1 1568w, https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?w=1800&amp;ssl=1 1800w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"9442\" data-permalink=\"https:\/\/mathemalchemy.org\/fr\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=2000%2C1333&amp;ssl=1\" data-orig-size=\"2000,1333\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=300%2C200&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/mathemalchemy.org\/wp-content\/uploads\/2022\/01\/bakery-mathematical-concepts-mathematics-mathemalchemy-art-installation.jpg?fit=900%2C599&amp;ssl=1\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\n\t\t\t\t\t\t\t\t\t<div class=\"entry-wrapper\">\n\t\t\t\t\t\t<h3 class=\"entry-title\"><a href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/05\/boulangerie-connexions-mathematiques\/\" rel=\"bookmark\">Boulangerie &#8211; Connexions math\u00e9matiques<\/a><\/h3>\n\t\t\t\t\t\t<div class=\"entry-meta\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div><!-- .entry-meta -->\n\t\t\t\t\t<\/div><!-- .entry-wrapper -->\n\t\t\t\t\t\t\t<\/article>\n\t\t\t<\/div><button class=\"swiper-button swiper-button-prev\" aria-label=\"Diapositive pr\u00e9c\u00e9dente\" ><\/button><button class=\"swiper-button swiper-button-next\" aria-label=\"Diapositive suivante\" ><\/button><\/div><div class=\"swiper-pagination-bullets\" ><button option=\"0\" 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class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/bouclier\/\" rel=\"tag\">bouclier<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/chiffre-de-cesar\/\" rel=\"tag\">Chiffre de C\u00e9sar<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/code-hamming\/\" rel=\"tag\">code hamming<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/code-morse\/\" rel=\"tag\">Code morse<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/courtepointe\/\" rel=\"tag\">courtepointe<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/courtepointe-cryptographie\/\" rel=\"tag\">Courtepointe de cryptographie<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/empreinte-digitale\/\" rel=\"tag\">empreinte digitale<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/enigma-fr\/\" rel=\"tag\">Enigma<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/quipu-fr\/\" rel=\"tag\">Quipu<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/scytale-fr\/\" rel=\"tag\">Scytale<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/mathemalchemy.org\/fr\/tag\/tricot\/\" rel=\"tag\">tricot<\/a><\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>La cryptographie ou \u00ab \u00e9criture secr\u00e8te \u00bb est un concept ancien. Depuis plusieurs mill\u00e9naires au moins, les gens ont voulu communiquer des messages \u00e0 des personnes \u00e9loign\u00e9es de telle sorte que, m\u00eame si le message \u00e9tait intercept\u00e9, il ne serait pas lisible par les intercepteurs. Pour y arriver, ils ont utilis\u00e9 diff\u00e9rentes formes de \u00ab<a class=\"more-link\" href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/23\/cryptographie-quilt-connexions-mathematiques\/\">Lire la suite <span class=\"screen-reader-text\">\u00ab\u00a0Courtepointe cryptographique &#8211; Connexions math\u00e9matiques\u00a0\u00bb<\/span><\/a><\/p>\n","protected":false},"author":44503792,"featured_media":9656,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","jetpack_post_was_ever_published":true,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6675,6677],"tags":[6852,6731,6853,6783,6717,6816,6695,6790,6854,6737,6855,6777],"class_list":["post-10241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-concepts-math-de-mathemalchemy","category-connections-mathematiques-de-mathemalchemy","tag-blockchain-fr","tag-bouclier","tag-chiffre-de-cesar","tag-code-hamming","tag-code-morse","tag-courtepointe","tag-courtepointe-cryptographie","tag-empreinte-digitale","tag-enigma-fr","tag-quipu-fr","tag-scytale-fr","tag-tricot","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Courtepointe cryptographique - Connexions math\u00e9matiques - Mathemalchemy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mathemalchemy.org\/fr\/2022\/01\/23\/cryptographie-quilt-connexions-mathematiques\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Courtepointe cryptographique - Connexions math\u00e9matiques - Mathemalchemy\" \/>\n<meta property=\"og:description\" content=\"La cryptographie ou \u00ab \u00e9criture secr\u00e8te \u00bb est un concept ancien. 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