{"id":205707,"date":"2023-08-03T07:30:00","date_gmt":"2023-08-03T07:30:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=205707"},"modified":"2023-11-09T13:44:00","modified_gmt":"2023-11-09T13:44:00","slug":"openssl-tout-savoir","status":"publish","type":"post","link":"https:\/\/datascientest.com\/openssl-tout-savoir","title":{"rendered":"OpenSSL : R\u00f4le et fonctionnalit\u00e9s de cette biblioth\u00e8que"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"205707\" class=\"elementor elementor-205707\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c8c5993 e-flex e-con-boxed e-con\" data-id=\"c8c5993\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-024c6ae elementor-widget elementor-widget-heading\" data-id=\"024c6ae\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Initialement d\u00e9velopp\u00e9e en 1998, cette biblioth\u00e8que a depuis lors connu une \u00e9volution constante et des mises \u00e0 jour r\u00e9guli\u00e8res. OpenSSL est \u00e9crit en C et est disponible sur diverses plateformes, avec entre autres Linux, MacOS et Windows.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7952b3e elementor-widget elementor-widget-text-editor\" data-id=\"7952b3e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><span style=\"font-weight: 400;\">Son objectif principal est de fournir des outils et des fonctionnalit\u00e9s de <\/span><b>cryptographie <\/b><span style=\"font-weight: 400;\">robustes pour <\/span><b>s\u00e9curiser les donn\u00e9es et les communications<\/b><span style=\"font-weight: 400;\">. Il offre \u00e9galement une <\/span><a href=\"https:\/\/datascientest.com\/api-tout-savoir\">API<\/a><b> <\/b><span style=\"font-weight: 400;\">permettant aux d\u00e9veloppeurs d\u2019int\u00e9grer facilement une s\u00e9curit\u00e9 accrue dans leurs applications.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e34d04b e-flex e-con-boxed e-con\" data-id=\"e34d04b\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f2d802f elementor-widget elementor-widget-heading\" data-id=\"f2d802f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Fonctionnalit\u00e9s d\u2019OpenSSL<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21df00d elementor-widget elementor-widget-heading\" data-id=\"21df00d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Cryptographie asym\u00e9trique et sym\u00e9trique<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d8a2a5 elementor-widget elementor-widget-text-editor\" data-id=\"8d8a2a5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<span style=\"font-weight: 400;\">OpenSSL offre une prise en charge compl\u00e8te de la cryptographie dite <b>\u00ab\u00a0asym\u00e9trique\u00a0\u00bb<\/b>, bas\u00e9e sur des paires de cl\u00e9s <\/span><b>publique\/priv\u00e9e<\/b><span style=\"font-weight: 400;\">. Cette approche permet d\u2019utiliser des cl\u00e9s distinctes pour le chiffrement et le d\u00e9chiffrement des donn\u00e9es, ainsi que pour la v\u00e9rification de signatures num\u00e9riques. Les principaux algorithmes pris en charge sont :<\/span>\n<ul>\n \t<li><b>RSA <\/b><span style=\"font-weight: 400;\">(Rivest, Shamir, Adleman) repose sur la g\u00e9n\u00e9ration d\u2019une paire de cl\u00e9s publique\/priv\u00e9e pour chiffrer et d\u00e9chiffrer des donn\u00e9es mais \u00e9galement pour cr\u00e9er et v\u00e9rifier des signatures num\u00e9riques.<\/span><\/li>\n \t<li><b>DSA <\/b><span style=\"font-weight: 400;\">(Digital Signature Algorithm) est un algorithme utilis\u00e9 pour v\u00e9rifier l&rsquo;authenticit\u00e9 et l\u2019int\u00e9grit\u00e9 des donn\u00e9es. Il repose \u00e9galement sur la g\u00e9n\u00e9ration d\u2019une paire de cl\u00e9s publique\/priv\u00e9e.<\/span><\/li>\n \t<li><b>ECDSA <\/b>(Elliptic Curve Digital Signature Algorithm) est bas\u00e9 quant \u00e0 lui sur des courbes elliptiques. Il offre une s\u00e9curit\u00e9 comparable \u00e0 RSA et DSA mais avec une taille de cl\u00e9 plus petite, le rendant plus efficace en termes de performances et d\u2019utilisation des ressources.<\/li>\n<\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-af03c8e elementor-widget elementor-widget-text-editor\" data-id=\"af03c8e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Quant \u00e0 la cryptographie dite \u00ab\u00a0<\/span><b>sym\u00e9trique<\/b><span style=\"font-weight: 400;\">\u00ab\u00a0, OpenSSL propose des algorithmes de chiffrement par <\/span><b>blocs <\/b><span style=\"font-weight: 400;\">ainsi que des algorithmes de chiffrement par <\/span><b>flux<\/b><span style=\"font-weight: 400;\">. Ils permettent de chiffrer et de d\u00e9chiffrer des donn\u00e9es utilisant la m\u00eame cl\u00e9.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dace35c elementor-widget elementor-widget-image\" data-id=\"dace35c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/openssl-datascientest1.png\" class=\"attachment-full size-full wp-image-205734\" alt=\"OpenSSL\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/openssl-datascientest1.png 800w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/openssl-datascientest1-300x169.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/openssl-datascientest1-768x432.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8dfc32 elementor-widget elementor-widget-heading\" data-id=\"f8dfc32\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Certificats et chiffrement des communications<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb86970 elementor-widget elementor-widget-text-editor\" data-id=\"eb86970\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<span style=\"font-weight: 400;\">OpenSSL joue un r\u00f4le essentiel dans la gestion des certificats num\u00e9riques. Il permet de cr\u00e9er, signer et v\u00e9rifier des certificats SSL\/TLS utilis\u00e9s pour s\u00e9curiser les connexions Web. Les protocoles utilis\u00e9s garantissent la confidentialit\u00e9 et l\u2019int\u00e9grit\u00e9 des donn\u00e9es \u00e9chang\u00e9es entre les serveurs et les clients :<\/span>\n<ul>\n \t<li>Le <\/span><b>Protocole SSL <\/b><span style=\"font-weight: 400;\">(Secure Sockets Layout) est utilis\u00e9 pour s\u00e9curiser les connexions r\u00e9seau, notamment les connexions HTTPS. Il a \u00e9t\u00e9 remplac\u00e9 par le protocole TLS mais est encore utilis\u00e9 pour faire r\u00e9f\u00e9rences aux versions plus anciennes du protocole.<\/li>\n \t<li>Le <b>Protocole TLS <\/b>(Transport Layer Security) est le successeur du protocole SSL. Il permet une am\u00e9lioration de la s\u00e9curit\u00e9, notamment une meilleure protection contre les attaques et des algorithmes de chiffrement plus forts.<\/li>\n<\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6fb995 elementor-widget elementor-widget-heading\" data-id=\"d6fb995\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Gestion des cl\u00e9s et des certificats<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d25675f elementor-widget elementor-widget-text-editor\" data-id=\"d25675f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La biblioth\u00e8que OpenSSL offre des fonctionnalit\u00e9s avanc\u00e9es de gestion des cl\u00e9s et des certificats. Elle permet de g\u00e9n\u00e9rer des paires de cl\u00e9s publique\/priv\u00e9e, de cr\u00e9er des demandes de certificats, de signer des certificats avec une autorit\u00e9 de certification (<\/span><b>CA<\/b><span style=\"font-weight: 400;\">), de v\u00e9rifier la validit\u00e9 des certificats et de g\u00e9rer les cha\u00eenes de certificats.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5497088 elementor-widget elementor-widget-heading\" data-id=\"5497088\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Autres fonctionnalit\u00e9s<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d1cfac4 elementor-widget elementor-widget-text-editor\" data-id=\"d1cfac4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Outre celles d\u00e9crites pr\u00e9c\u00e9demment, OpenSSL propose \u00e9galement des fonctionnalit\u00e9s essentielles, comme la cr\u00e9ation de fonctions de hachage cryptographique (tel <strong>SHA-1<\/strong> et <strong>SHA-256<\/strong>), la v\u00e9rification de signatures num\u00e9riques et la manipulation de certificats dans diff\u00e9rents formats tels que le PEM et le DER.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fb14d4d e-flex e-con-boxed e-con\" data-id=\"fb14d4d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-757cfbe elementor-widget elementor-widget-heading\" data-id=\"757cfbe\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Pour conclure<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-86978ec elementor-widget elementor-widget-text-editor\" data-id=\"86978ec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Nous allons conclure cet article en \u00e9num\u00e9rant certaines bonnes pratiques qu\u2019il est n\u00e9cessaire de respecter afin de garantir un niveau de s\u00e9curit\u00e9 \u00e9lev\u00e9.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d6290b elementor-widget elementor-widget-html\" data-id=\"8d6290b\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style type=\"text\/css\">\r\n.tg  {border-collapse:collapse;border-spacing:0;}\r\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg .tg-a6ll{background-color:#c0c0c0;border-color:inherit;font-family:\"Trebuchet MS\", Helvetica, sans-serif !important;\r\n  text-align:left;vertical-align:top}\r\n.tg .tg-15qk{background-color:#efefef;border-color:inherit;font-family:\"Trebuchet MS\", Helvetica, sans-serif !important;\r\n  font-weight:bold;text-align:left;vertical-align:top}\r\n.tg .tg-9lmj{background-color:#efefef;border-color:inherit;font-family:\"Trebuchet MS\", Helvetica, sans-serif !important;\r\n  text-align:left;vertical-align:top}\r\n<\/style>\r\n<table class=\"tg\" style=\"undefined;table-layout: fixed; width: 800px\">\r\n<colgroup>\r\n<col style=\"width: 100px\">\r\n<col style=\"width: 200px\">\r\n<col style=\"width: 500px\">\r\n<\/colgroup>\r\n<thead>\r\n  <tr>\r\n    <th class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image4-7.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/th>\r\n    <th class=\"tg-15qk\">Restez \u00e0 jour<\/th>\r\n    <th class=\"tg-9lmj\">Assurez-vous de toujours utiliser la derni\u00e8re version stable d\u2019OpenSSL, celle-ci incluant des correctifs de s\u00e9curit\u00e9 et des am\u00e9liorations.<\/th>\r\n  <\/tr>\r\n<\/thead>\r\n<tbody>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image5-7.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Prot\u00e9gez vos cl\u00e9s priv\u00e9es<\/td>\r\n    <td class=\"tg-9lmj\">Elles sont essentielles pour la s\u00e9curit\u00e9 de vos communications. Utilisez des emplacements s\u00e9curis\u00e9s et \u00e9vitez de stocker vos cl\u00e9s priv\u00e9es sur des serveurs ou des syst\u00e8mes facilement accessibles.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image1-12.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Utilisez des algorithmes forts<\/td>\r\n    <td class=\"tg-9lmj\">OpenSSL propose une gamme d\u2019algorithmes de chiffrement pour r\u00e9pondre \u00e0 diff\u00e9rents besoins. N\u2019utilisez pas d\u2019algorithmes obsol\u00e8tes ou vuln\u00e9rables.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image3-8.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Prot\u00e9gez vos certificats<\/td>\r\n    <td class=\"tg-9lmj\">Assurez vous de g\u00e9rer correctement vos certificats, notamment en les renouvelant avant leur expiration, en les stockant de mani\u00e8re s\u00e9curis\u00e9e et en les r\u00e9voquant si n\u00e9cessaire.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image7.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Effectuez des tests de s\u00e9curit\u00e9<\/td>\r\n    <td class=\"tg-9lmj\">OpenSSL peut \u00eatre utilis\u00e9 pour tester la s\u00e9curit\u00e9 des serveurs et des applications. Effectuez des scans de vuln\u00e9rabilit\u00e9s, des tests de conformit\u00e9s et des \u00e9valuations de l\u2019efficacit\u00e9 des chiffrements utilis\u00e9s.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image2-10.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Gardez \u00e0 l\u2019esprit les menaces potentielles<\/td>\r\n    <td class=\"tg-9lmj\">Renseignez-vous r\u00e9guli\u00e8rement sur les attaques courantes, telles que les attaques par brute force, les attaques de type \u201cMan-In-The-Middle\u201d et autres vuln\u00e9rabilit\u00e9s connues afin de mettre en place les mesures de protection appropri\u00e9es.<\/td>\r\n  <\/tr>\r\n<\/tbody>\r\n<\/table>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b42ba4e elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"b42ba4e\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">D\u00e9marrer une formation en Data Science<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0160089 e-flex e-con-boxed e-con\" data-id=\"0160089\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a369553 elementor-widget elementor-widget-html\" data-id=\"a369553\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Cryptographie asym\u00e9trique et sym\u00e9trique\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"OpenSSL offre une prise en charge compl\u00e8te de la cryptographie dite \\\"asym\u00e9trique\\\", bas\u00e9e sur des paires de cl\u00e9s publique\/priv\u00e9e. Cette approche permet d\u2019utiliser des cl\u00e9s distinctes pour le chiffrement et le d\u00e9chiffrement des donn\u00e9es, ainsi que pour la v\u00e9rification de signatures num\u00e9riques.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Gestion des cl\u00e9s et des certificats\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"La biblioth\u00e8que OpenSSL offre des fonctionnalit\u00e9s avanc\u00e9es de gestion des cl\u00e9s et des certificats. Elle permet de g\u00e9n\u00e9rer des paires de cl\u00e9s publique\/priv\u00e9e, de cr\u00e9er des demandes de certificats, de signer des certificats avec une autorit\u00e9 de certification (CA), de v\u00e9rifier la validit\u00e9 des certificats et de g\u00e9rer les cha\u00eenes de certificats.\"\r\n    }\r\n  }]\r\n}\r\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Initialement d\u00e9velopp\u00e9e en 1998, cette biblioth\u00e8que a depuis lors connu une \u00e9volution constante et des mises \u00e0 jour r\u00e9guli\u00e8res. OpenSSL est \u00e9crit en C et est disponible sur diverses plateformes, avec entre autres Linux, MacOS et Windows. Son objectif principal est de fournir des outils et des fonctionnalit\u00e9s de cryptographie robustes pour s\u00e9curiser les donn\u00e9es [&hellip;]<\/p>\n","protected":false},"author":78,"featured_media":205709,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OpenSSL : R\u00f4le et fonctionnalit\u00e9s de cette biblioth\u00e8que<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez tout ce que vous voulez savoir \u00e0 propos d&#039;OpenSSL, ses outils et ses fonctionnalit\u00e9s de cryptographie robustes permettant de s\u00e9curiser vos donn\u00e9es et vos communications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/openssl-tout-savoir\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OpenSSL : R\u00f4le et fonctionnalit\u00e9s de cette biblioth\u00e8que\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/openssl-tout-savoir\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-03T07:30:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-09T13:44:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/openssl-datascientest.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"J\u00e9r\u00e9my Robert\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"J\u00e9r\u00e9my Robert\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/openssl-tout-savoir\",\"url\":\"https:\/\/datascientest.com\/openssl-tout-savoir\",\"name\":\"OpenSSL : R\u00f4le et fonctionnalit\u00e9s de cette biblioth\u00e8que\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2023-08-03T07:30:00+00:00\",\"dateModified\":\"2023-11-09T13:44:00+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/7af2361c48e24e79a8aa2360e6e74925\"},\"description\":\"D\u00e9couvrez tout ce que vous voulez savoir \u00e0 propos d'OpenSSL, ses outils et ses fonctionnalit\u00e9s de cryptographie robustes permettant de s\u00e9curiser vos donn\u00e9es et vos communications.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/openssl-tout-savoir\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/#website\",\"url\":\"https:\/\/datascientest.com\/\",\"name\":\"Formation Data Science | DataScientest.com\",\"description\":\"Leader de la formation en Data Science\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/7af2361c48e24e79a8aa2360e6e74925\",\"name\":\"J\u00e9r\u00e9my Robert\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/jeremyrobert.jpeg\",\"contentUrl\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/jeremyrobert.jpeg\",\"caption\":\"J\u00e9r\u00e9my Robert\"},\"description\":\"J\u00e9r\u00e9my Robert est actuellement Directeur p\u00e9dagogique B2B chez DataScientest.com. 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