{"id":869,"date":"2015-03-27T16:10:45","date_gmt":"2015-03-27T23:10:45","guid":{"rendered":"http:\/\/www.giassa.net\/?page_id=869"},"modified":"2025-08-24T08:03:52","modified_gmt":"2025-08-24T15:03:52","slug":"matasanto-crypto-challenge","status":"publish","type":"page","link":"https:\/\/www.giassa.net\/?page_id=869","title":{"rendered":"Matasanto Crypto Challenge"},"content":{"rendered":"<p>The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one&#8217;s appreciation of the importance of secure software design. As described on <a href=\"http:\/\/cryptopals.com\/\">the author&#8217;s site:<\/a><\/p>\n<blockquote><p>We&#8217;ve built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn about crypto than taking a class or reading a book. We give you problems to solve. They&#8217;re derived from weaknesses in real-world systems and modern cryptographic constructions. We give you enough info to learn about the underlying crypto concepts yourself. When you&#8217;re finished, you&#8217;ll not only have learned a good deal about how cryptosystems are built, but you&#8217;ll also understand how they&#8217;re attacked.<\/p><\/blockquote>\n<p>As I progress through the challenge, I will be posting my solutions, likely in C, C++, assembler, and Python.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one&#8217;s appreciation of the importance of secure software design. As described on the author&#8217;s site: We&#8217;ve built a collection of &hellip; <a href=\"https:\/\/www.giassa.net\/?page_id=869\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1078,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-869","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one&#039;s appreciation of the importance of secure software design. As described on the author&#039;s site: We&#039;ve built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.giassa.net\/?page_id=869\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"GIASSA.NET | Engineering, DIY, and Everything Else\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Matasanto Crypto Challenge | GIASSA.NET\" \/>\n\t\t<meta property=\"og:description\" content=\"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one&#039;s appreciation of the importance of secure software design. As described on the author&#039;s site: We&#039;ve built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.giassa.net\/?page_id=869\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2015-03-27T23:10:45+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2025-08-24T15:03:52+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Matasanto Crypto Challenge | GIASSA.NET\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one&#039;s appreciation of the importance of secure software design. As described on the author&#039;s site: We&#039;ve built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=869#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.giassa.net\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=865#listItem\",\"name\":\"Projects\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=865#listItem\",\"position\":2,\"name\":\"Projects\",\"item\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=865\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=1078#listItem\",\"name\":\"Challenges &#038; Competitions\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=1078#listItem\",\"position\":3,\"name\":\"Challenges &#038; Competitions\",\"item\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=1078\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=869#listItem\",\"name\":\"Matasanto Crypto Challenge\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=865#listItem\",\"name\":\"Projects\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=869#listItem\",\"position\":4,\"name\":\"Matasanto Crypto Challenge\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=1078#listItem\",\"name\":\"Challenges &#038; Competitions\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/#organization\",\"name\":\"GIASSA.NET\",\"description\":\"Engineering, DIY, and Everything Else\",\"url\":\"https:\\\/\\\/www.giassa.net\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=869#webpage\",\"url\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=869\",\"name\":\"Matasanto Crypto Challenge | GIASSA.NET\",\"description\":\"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one's appreciation of the importance of secure software design. As described on the author's site: We've built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.giassa.net\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.giassa.net\\\/?page_id=869#breadcrumblist\"},\"datePublished\":\"2015-03-27T16:10:45-07:00\",\"dateModified\":\"2025-08-24T08:03:52-07:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.giassa.net\\\/#website\",\"url\":\"https:\\\/\\\/www.giassa.net\\\/\",\"name\":\"GIASSA.NET\",\"description\":\"Engineering, DIY, and Everything Else\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.giassa.net\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Matasanto Crypto Challenge | GIASSA.NET","description":"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one's appreciation of the importance of secure software design. As described on the author's site: We've built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn","canonical_url":"https:\/\/www.giassa.net\/?page_id=869","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/www.giassa.net\/?page_id=869#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/www.giassa.net#listItem","position":1,"name":"Home","item":"https:\/\/www.giassa.net","nextItem":{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=865#listItem","name":"Projects"}},{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=865#listItem","position":2,"name":"Projects","item":"https:\/\/www.giassa.net\/?page_id=865","nextItem":{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=1078#listItem","name":"Challenges &#038; Competitions"},"previousItem":{"@type":"ListItem","@id":"https:\/\/www.giassa.net#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=1078#listItem","position":3,"name":"Challenges &#038; Competitions","item":"https:\/\/www.giassa.net\/?page_id=1078","nextItem":{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=869#listItem","name":"Matasanto Crypto Challenge"},"previousItem":{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=865#listItem","name":"Projects"}},{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=869#listItem","position":4,"name":"Matasanto Crypto Challenge","previousItem":{"@type":"ListItem","@id":"https:\/\/www.giassa.net\/?page_id=1078#listItem","name":"Challenges &#038; Competitions"}}]},{"@type":"Organization","@id":"https:\/\/www.giassa.net\/#organization","name":"GIASSA.NET","description":"Engineering, DIY, and Everything Else","url":"https:\/\/www.giassa.net\/"},{"@type":"WebPage","@id":"https:\/\/www.giassa.net\/?page_id=869#webpage","url":"https:\/\/www.giassa.net\/?page_id=869","name":"Matasanto Crypto Challenge | GIASSA.NET","description":"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one's appreciation of the importance of secure software design. As described on the author's site: We've built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/www.giassa.net\/#website"},"breadcrumb":{"@id":"https:\/\/www.giassa.net\/?page_id=869#breadcrumblist"},"datePublished":"2015-03-27T16:10:45-07:00","dateModified":"2025-08-24T08:03:52-07:00"},{"@type":"WebSite","@id":"https:\/\/www.giassa.net\/#website","url":"https:\/\/www.giassa.net\/","name":"GIASSA.NET","description":"Engineering, DIY, and Everything Else","inLanguage":"en-US","publisher":{"@id":"https:\/\/www.giassa.net\/#organization"}}]},"og:locale":"en_US","og:site_name":"GIASSA.NET | Engineering, DIY, and Everything Else","og:type":"article","og:title":"Matasanto Crypto Challenge | GIASSA.NET","og:description":"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one's appreciation of the importance of secure software design. As described on the author's site: We've built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn","og:url":"https:\/\/www.giassa.net\/?page_id=869","article:published_time":"2015-03-27T23:10:45+00:00","article:modified_time":"2025-08-24T15:03:52+00:00","twitter:card":"summary","twitter:title":"Matasanto Crypto Challenge | GIASSA.NET","twitter:description":"The Matasanto Crypto Challenge is a series of exercises to gain familiarity with cryptography development practises in general, and broadening one's appreciation of the importance of secure software design. As described on the author's site: We've built a collection of 48 exercises that demonstrate attacks on real-world crypto. This is a different way to learn"},"aioseo_meta_data":{"post_id":"869","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"WebPage","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2021-04-22 01:27:51","updated":"2025-08-24 15:37:55","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.giassa.net\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.giassa.net\/?page_id=865\" title=\"Projects\">Projects<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.giassa.net\/?page_id=1078\" title=\"Challenges &amp; Competitions\">Challenges &amp; Competitions<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tMatasanto Crypto Challenge\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.giassa.net"},{"label":"Projects","link":"https:\/\/www.giassa.net\/?page_id=865"},{"label":"Challenges &#038; Competitions","link":"https:\/\/www.giassa.net\/?page_id=1078"},{"label":"Matasanto Crypto Challenge","link":"https:\/\/www.giassa.net\/?page_id=869"}],"_links":{"self":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/pages\/869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.giassa.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=869"}],"version-history":[{"count":3,"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/pages\/869\/revisions"}],"predecessor-version":[{"id":875,"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/pages\/869\/revisions\/875"}],"up":[{"embeddable":true,"href":"https:\/\/www.giassa.net\/index.php?rest_route=\/wp\/v2\/pages\/1078"}],"wp:attachment":[{"href":"https:\/\/www.giassa.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}