{"id":113107,"date":"2024-01-24T23:28:03","date_gmt":"2024-01-24T21:28:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-cryptsetup-2-7-s-podderzhkoj-apparatnogo-diskovogo-shifrovaniya-opal"},"modified":"2024-01-24T23:28:03","modified_gmt":"2024-01-24T21:28:03","slug":"vypusk-cryptsetup-2-7-s-podderzhkoj-apparatnogo-diskovogo-shifrovaniya-opal","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-cryptsetup-2-7-s-podderzhkoj-apparatnogo-diskovogo-shifrovaniya-opal","title":{"rendered":"Lan\u00e7amento do Cryptsetup 2.7 com suporte a criptografia de disco por hardware OPAL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foi lan\u00e7ado o conjunto de utilit\u00e1rios Cryptsetup 2.7, destinado \u00e0 configura\u00e7\u00e3o de criptografia de parti\u00e7\u00f5es de disco no Linux utilizando o m\u00f3dulo dm-crypt. Suporte \u00e9 oferecido para parti\u00e7\u00f5es dm-crypt, LUKS, LUKS2, BITLK, loop-AES e TrueCrypt\/VeraCrypt. O pacote tamb\u00e9m inclui as ferramentas veritysetup e integritysetup para configurar mecanismos de controle de integridade de dados baseados nos m\u00f3dulos dm-verity e dm-integrity.    <\/p>\n<p>Principais melhorias:  <\/p>\n<ul>\n<li class=\"l\"> Foi implementada a possibilidade de usar o mecanismo de criptografia de hardware OPAL, suportado em drives auto-criptograf\u00e1veis (SED \u2014 Self-Encrypting Drives) SATA e NVMe com interface OPAL2 TCG, nos quais o dispositivo de criptografia de hardware \u00e9 integrado diretamente no controlador. Por um lado, a criptografia OPAL est\u00e1 ligada a hardware propriet\u00e1rio e n\u00e3o est\u00e1 dispon\u00edvel para auditoria p\u00fablica, mas, por outro lado, pode ser usada como um n\u00edvel adicional de prote\u00e7\u00e3o em cima da criptografia por software, sem causar queda de desempenho e sem sobrecarregar a CPU.\n<p>Para usar o OPAL no LUKS2, \u00e9 necess\u00e1ria uma build do kernel Linux com a op\u00e7\u00e3o CONFIG_BLK_SED_OPAL e habilita\u00e7\u00e3o no Cryptsetup (por padr\u00e3o, o suporte ao OPAL est\u00e1 desativado). A configura\u00e7\u00e3o do LUKS2 OPAL \u00e9 feita de maneira semelhante \u00e0 criptografia por software \u2014 os metadados s\u00e3o armazenados no cabe\u00e7alho do LUKS2. A chave \u00e9 dividida em uma chave de parti\u00e7\u00e3o para a criptografia por software (dm-crypt) e uma chave de desbloqueio para o OPAL. O OPAL pode ser usado tanto com a criptografia por software (cryptsetup luksFormat \u2014hw-opal ), quanto separadamente (cryptsetup luksFormat \u2014hw-opal-only ). A ativa\u00e7\u00e3o e desativa\u00e7\u00e3o do OPAL \u00e9 feita da mesma forma (open, close, luksSuspend, luksResume) que para dispositivos LUKS2.    <\/p>\n<li class=\"l\"> No modo plain, onde a chave master e o cabe\u00e7alho n\u00e3o s\u00e3o armazenados no disco, o algoritmo aes-xts-plain64 e o algoritmo de hash sha256 s\u00e3o utilizados por padr\u00e3o (em vez do modo CBC, que apresenta problemas de desempenho, o XTS \u00e9 usado, e em vez do hash obsoleto ripemd160 \u2014 sha256).\n<li class=\"l\"> Nos comandos open e luksResume, \u00e9 permitido armazenar a chave de parti\u00e7\u00e3o no armazenamento de chaves escolhido pelo usu\u00e1rio no kernel (keyring). Para acessar o keyring, muitas comandos do cryptsetup foram adicionadas com a op\u00e7\u00e3o \u00ab--volume-key-keyring\u00bb (por exemplo, 'cryptsetup open  --link-vk-to-keyring \u00ab@s::%user:testkey\u00bb tst').\n<li class=\"l\"> Em sistemas sem parti\u00e7\u00e3o de troca, ao formatar ou criar slots de chave para PBKDF Argon2, agora \u00e9 utilizada apenas metade da mem\u00f3ria livre, resolvendo o problema de esgotamento de mem\u00f3ria dispon\u00edvel em sistemas com pouca RAM.\n<li class=\"l\"> Foi adicionada a op\u00e7\u00e3o \u00ab--external-tokens-path\u00bb para especificar o diret\u00f3rio para manipuladores externos de tokens LUKS2 (plugins).\n<li class=\"l\"> O tcrypt agora possui suporte ao algoritmo de hash Blake2 para VeraCrypt.\n<li class=\"l\"> Suporte ao cifrador de bloco Aria foi adicionado.\n<li class=\"l\"> Adicionada a suporte ao Argon2 nas implementa\u00e7\u00f5es do OpenSSL 3.2 e libgcrypt, o que elimina a necessidade de usar libargon.    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60493\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043d\u0430\u0431\u043e\u0440 \u0443\u0442\u0438\u043b\u0438\u0442 Cryptsetup 2.7, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0438\u0441\u043a\u043e\u0432\u044b\u0445 \u0440\u0430\u0437\u0434\u0435\u043b\u043e\u0432 \u0432 Linux \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043c\u043e\u0434\u0443\u043b\u044f dm-crypt. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u0441 \u0440\u0430\u0437\u0434\u0435\u043b\u0430\u043c\u0438 dm-crypt, LUKS, LUKS2, BITLK, loop-AES \u0438 TrueCrypt\/VeraCrypt. \u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u0442\u0430\u043a\u0436\u0435 \u0432\u0445\u043e\u0434\u044f\u0442 \u0443\u0442\u0438\u043b\u0438\u0442\u044b veritysetup \u0438 integritysetup \u0434\u043b\u044f \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044f \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043c\u043e\u0434\u0443\u043b\u0435\u0439 dm-verity \u0438 dm-integrity. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u0435 \u0443\u043b\u0443\u0447\u0448\u0435\u043d\u0438\u044f: \u0420\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-113107","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043d\u0430\u0431\u043e\u0440 \u0443\u0442\u0438\u043b\u0438\u0442 Cryptsetup 2.7, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0445 \u0434\u043b\u044f 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