{"id":101238,"date":"2021-09-09T16:22:48","date_gmt":"2021-09-09T14:22:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-gnu-anastasis-instrumentarij-dlya-rezervnogo-kopirovaniya-klyuchej-shifrovaniya"},"modified":"2021-09-09T16:22:48","modified_gmt":"2021-09-09T14:22:49","slug":"dostupen-gnu-anastasis-instrumentarij-dlya-rezervnogo-kopirovaniya-klyuchej-shifrovaniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/dostupen-gnu-anastasis-instrumentarij-dlya-rezervnogo-kopirovaniya-klyuchej-shifrovaniya","title":{"rendered":"Est\u00e1 dispon\u00edvel o GNU Anastasis, uma ferramenta para backup de chaves de criptografia","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

O projeto GNU apresentou a primeira vers\u00e3o de teste do GNU Anastasis, um protocolo e aplicativos com sua implementa\u00e7\u00e3o, destinados ao backup seguro de chaves de criptografia e c\u00f3digos de acesso. O projeto \u00e9 desenvolvido pelos criadores do sistema de pagamento GNU Taler em resposta \u00e0 necessidade de uma ferramenta para recuperar chaves perdidas ap\u00f3s falhas no sistema de armazenamento ou devido a senhas esquecidas que criptografaram a chave. O c\u00f3digo do projeto \u00e9 escrito em C e distribu\u00eddo sob a licen\u00e7a GPLv3. <\/p>\n

A ideia principal do projeto \u00e9 que a chave \u00e9 dividida em partes, e cada parte \u00e9 criptografada e armazenada em um provedor de armazenamento independente. Diferente dos esquemas existentes de backup de chaves que envolvem o uso de servi\u00e7os pagos ou amigos\/familiares, o m\u00e9todo proposto no GNU Anastasis n\u00e3o se baseia em total confian\u00e7a no armazenamento ou na necessidade de memorizar uma senha complexa que criptografa a chave. A prote\u00e7\u00e3o de backups de chaves com senhas n\u00e3o \u00e9 considerada uma solu\u00e7\u00e3o, j\u00e1 que a senha tamb\u00e9m precisa ser armazenada em algum lugar ou memorizada (as chaves podem ser perdidas devido a amn\u00e9sia ou \u00e0 morte do propriet\u00e1rio). <\/p>\n

O provedor de armazenamento no GNU Anastasis n\u00e3o pode acessar a chave, pois tem acesso apenas a parte da chave, e para reunir todos os componentes da chave em um todo, \u00e9 necess\u00e1rio se autenticar com cada provedor, que utiliza diferentes m\u00e9todos de autentica\u00e7\u00e3o. A autentica\u00e7\u00e3o atrav\u00e9s de SMS, e-mail, recebimento de uma carta f\u00edsica, videoconfer\u00eancia, conhecimento da resposta a uma pergunta secreta previamente determinada e a possibilidade de realizar uma transfer\u00eancia de uma conta banc\u00e1ria pr\u00e9-designada s\u00e3o suportados. Essas verifica\u00e7\u00f5es confirmam que o usu\u00e1rio tem acesso ao e-mail, n\u00famero de telefone e conta banc\u00e1ria, al\u00e9m de poder receber correspond\u00eancia no endere\u00e7o fornecido.

\"Est\u00e1<\/center> <\/p>\n

Ao salvar a chave, o usu\u00e1rio escolhe os provedores e os m\u00e9todos de autentica\u00e7\u00e3o a serem utilizados. Antes da transmiss\u00e3o de dados para o provedor, partes da chave s\u00e3o criptografadas usando um hash calculado com base em respostas formalizadas a v\u00e1rias perguntas relacionadas \u00e0 identidade do propriet\u00e1rio da chave (nome completo, data e local de nascimento, n\u00famero de seguro social etc.). O provedor n\u00e3o recebe informa\u00e7\u00f5es sobre os usu\u00e1rios que realizam o backup, exceto os dados necess\u00e1rios para autenticar o propriet\u00e1rio. Uma quantia em dinheiro pode ser paga ao provedor pelo armazenamento (suporte para esses pagamentos j\u00e1 foi adicionado ao GNU Taler, mas os dois provedores de teste atuais operam gratuitamente). Uma ferramenta com interface gr\u00e1fica baseada na biblioteca GTK foi desenvolvida para gerenciar o processo de recupera\u00e7\u00e3o.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u043e\u0435\u043a\u0442 GNU \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u043f\u0435\u0440\u0432\u044b\u0439 \u0442\u0435\u0441\u0442\u043e\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a GNU Anastasis, \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 \u0438 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0441 \u0435\u0433\u043e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0433\u043e \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0435\u0439 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u043a\u043e\u0434\u043e\u0432 \u0434\u043e\u0441\u0442\u0443\u043f\u0430. \u041f\u0440\u043e\u0435\u043a\u0442 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u043f\u043b\u0430\u0442\u0451\u0436\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b GNU Taler \u0432 \u043e\u0442\u0432\u0435\u0442 \u043d\u0430 \u043f\u043e\u0442\u0440\u0435\u0431\u043d\u043e\u0441\u0442\u044c \u0432 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0435 \u0434\u043b\u044f \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0435\u0439, \u043f\u043e\u0442\u0435\u0440\u044f\u043d\u043d\u044b\u0445 \u043f\u043e\u0441\u043b\u0435 \u0441\u0431\u043e\u044f \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0438\u043b\u0438 \u0438\u0437-\u0437\u0430 \u0437\u0430\u0431\u044b\u0442\u043e\u0433\u043e \u043f\u0430\u0440\u043e\u043b\u044f, \u043a\u043e\u0442\u043e\u0440\u044b\u043c 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