{"id":5988,"date":"2025-12-20T09:27:03","date_gmt":"2025-12-20T08:27:03","guid":{"rendered":"https:\/\/workboot.fr\/ciela\/?page_id=5988"},"modified":"2026-01-14T17:44:54","modified_gmt":"2026-01-14T16:44:54","slug":"luks","status":"publish","type":"page","link":"https:\/\/workboot.fr\/ciela\/luks\/","title":{"rendered":"LUKS"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">D\u00e9finition<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>LUKS<\/strong>\u00a0(Linux Unified Key Setup) est la norme standard de chiffrement de disque sous <strong>Linux<\/strong>.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On va ici apprendre \u00e0 chiffrer une partition (carte SD ou cl\u00e9 m\u00e9moire USB)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LUKS est un syst\u00e8me de chiffrement au niveau des blocs qui fournit une sp\u00e9cification standard pour le chiffrement de disques complets, de partitions ou de volumes de stockage sous Linux.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Voici comment chiffrer une cl\u00e9 USB avec LUKS sous Linux :<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.&nbsp;<strong>Installation des outils n\u00e9cessaires<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\"># Pour Ubuntu\/Debian<br>sudo apt install <strong>cryptsetup<\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">2.&nbsp;<strong>Identifier votre cl\u00e9 USB<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo fdisk -l\n# ou\nlsblk<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Notez le nom de votre p\u00e9riph\u00e9rique (ex:\u00a0<code>\/dev\/sdb<\/code>,\u00a0<code>\/dev\/sdc<\/code>).\u00a0<strong>Attention \u00e0 ne pas choisir vos disques syst\u00e8mes !<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">on d\u00e9termine X (sda  souvent votre syst\u00e8me !! , b surement non ?)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.&nbsp;<strong>Cr\u00e9er une partition LUKS<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\"># Cr\u00e9er la partition (remplacez \/dev\/sdX par votre p\u00e9riph\u00e9rique)\nsudo cryptsetup luksFormat \/dev\/sdX\n\n# Vous devrez confirmer avec YES en majuscules\n# Puis entrer votre mot de passe<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">4.&nbsp;<strong>Ouvrir la partition chiffr\u00e9e<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\"># Ouvrir la partition (cr\u00e9era un point de montage sous \/dev\/mapper)\nsudo cryptsetup open \/dev\/sdX usb-encrypted<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">5.&nbsp;<strong>Formater la partition<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\"># Formater en ext4 (ou le syst\u00e8me de fichiers de votre choix)\nsudo mkfs.ext4 \/dev\/mapper\/usb-encrypted<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">6.&nbsp;<strong>Monter et utiliser<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\"># Cr\u00e9er un point de montage\nsudo mkdir \/mnt\/usb-encrypted\n\n# Monter la partition\nsudo mount \/dev\/mapper\/usb-encrypted \/mnt\/usb-encrypted\n\n# Utiliser normalement\nsudo chown $USER:$USER \/mnt\/usb-encrypted<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">7.&nbsp;<strong>Pour d\u00e9monter<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># D\u00e9monter\nsudo umount \/mnt\/usb-encrypted\n\n# Fermer la partition chiffr\u00e9e\nsudo cryptsetup close usb-encrypted<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Utilisation quotidienne :<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pour remonter la cl\u00e9 USB chiffr\u00e9e :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">bash<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># on d\u00e9chiffre<br>sudo cryptsetup open \/dev\/sdX usb-encrypted<br># on monte la partition d\u00e9chiffr\u00e9e<br>sudo mount \/dev\/mapper\/usb-encrypted \/mnt\/usb-encrypted<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Options avanc\u00e9es :<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chiffrement avec cl\u00e9 SSH :&nbsp;<code>cryptsetup luksAddKey<\/code><\/li>\n\n\n\n<li>Changer le mot de passe :&nbsp;<code>cryptsetup luksChangeKey<\/code><\/li>\n\n\n\n<li>Voir les infos LUKS :&nbsp;<code>cryptsetup luksDump \/dev\/sdX<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Important :<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sauvegardez vos donn\u00e9es avant<\/strong>&nbsp;de chiffrer !<\/li>\n\n\n\n<li>Ne perdez pas votre mot de passe LUKS, sinon les donn\u00e9es seront irr\u00e9cup\u00e9rables<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e9finition LUKS\u00a0(Linux Unified Key Setup) est la norme standard de chiffrement de disque sous Linux.\u00a0 On va ici apprendre \u00e0 chiffrer une partition (carte SD ou cl\u00e9 m\u00e9moire USB) LUKS [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_crdt_document":"","_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-5988","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LUKS - workboot<\/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:\/\/workboot.fr\/ciela\/luks\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LUKS - workboot\" \/>\n<meta property=\"og:description\" content=\"D\u00e9finition LUKS\u00a0(Linux Unified Key Setup) est la norme standard de chiffrement de disque sous Linux.\u00a0 On va ici 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