{"id":121747,"date":"2025-02-07T03:46:08","date_gmt":"2025-02-07T01:46:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/nachalos-proizvodstvo-chipov-na-baze-otkrytoj-platformy-opentitan"},"modified":"2025-02-07T03:46:08","modified_gmt":"2025-02-07T01:46:09","slug":"nachalos-proizvodstvo-chipov-na-baze-otkrytoj-platformy-opentitan","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/nachalos-proizvodstvo-chipov-na-baze-otkrytoj-platformy-opentitan","title":{"rendered":"Come\u00e7ou a produ\u00e7\u00e3o de chips na plataforma aberta OpenTitan","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Google anunciou, ap\u00f3s seis anos de trabalho no projeto, o in\u00edcio da produ\u00e7\u00e3o de um chip baseado na plataforma aberta OpenTitan. O chip \u00e9 fabricado pela Nuvoton e \u00e9 a primeira implementa\u00e7\u00e3o do OpenTitan pronta para uso em projetos comerciais. Atualmente, uma leva de testes foi lan\u00e7ada, e o in\u00edcio da produ\u00e7\u00e3o em massa est\u00e1 previsto para a primavera deste ano. <\/p>\n

O OpenTitan \u00e9 uma plataforma para a cria\u00e7\u00e3o de componentes de hardware dignos de confian\u00e7a (RoT, Root of Trust), utilizados em situa\u00e7\u00f5es onde \u00e9 necess\u00e1rio garantir a integridade dos elementos hardware e software do sistema. Por exemplo, para assegurar que partes cr\u00edticas do sistema n\u00e3o foram substitu\u00eddas e baseiam-se em c\u00f3digo verificado e autorizado pelo fabricante. O projeto fornece uma estrutura pronta, testada e confi\u00e1vel, aumentando a confian\u00e7a nas solu\u00e7\u00f5es criadas e reduzindo custos no desenvolvimento de chips especializados para seguran\u00e7a. <\/p>\n

Os chips baseados em OpenTitan podem ser usados em placas-m\u00e3e de servidores, placas de rede, dispositivos de consumo, roteadores e dispositivos de Internet das Coisas para verificar firmwares e componentes carreg\u00e1veis, gerar identificadores \u00fanicos criptograficamente para o sistema (prote\u00e7\u00e3o contra spoofing de hardware), oferecer servi\u00e7os relacionados \u00e0 seguran\u00e7a, proteger chaves criptogr\u00e1ficas (isolamento de chaves em caso de acesso f\u00edsico n\u00e3o autorizado ao hardware) e manter um log de auditoria isolado, que n\u00e3o pode ser editado ou apagado. <\/p>\n

OpenTitan inclui blocos l\u00f3gicos demandados em chips RoT, como um microprocessador aberto baseado na arquitetura RISC-V (RV32IMCB Ibex), coprocessadores criptogr\u00e1ficos, um gerador de n\u00fameros aleat\u00f3rios de hardware, um gerenciador de chaves com suporte a DICE, um mecanismo de armazenamento seguro de dados na mem\u00f3ria persistente e vol\u00e1til, tecnologias de prote\u00e7\u00e3o, blocos de entrada\/sa\u00edda e componentes de boot seguro. O dispositivo tamb\u00e9m fornece blocos com a implementa\u00e7\u00e3o de algoritmos de criptografia padr\u00e3o, como AES e HMAC-SHA256, e um acelerador de opera\u00e7\u00f5es matem\u00e1ticas aplicadas em algoritmos para trabalhar com assinaturas digitais baseadas em chaves p\u00fablicas.

\"Come\u00e7ou<\/center> <\/p>\n

O projeto foi criado pela Google, mas foi transferido para a organiza\u00e7\u00e3o sem fins lucrativos lowRISC, ap\u00f3s o que empresas como Western Digital, Seagate, Nuvoton Technology, Winbond, Rivos, zeroRISC e G+D Mobile Security se juntaram ao seu desenvolvimento. O c\u00f3digo e as especifica\u00e7\u00f5es dos componentes de hardware associados ao projeto s\u00e3o publicados sob a licen\u00e7a Apache 2.0. As solu\u00e7\u00f5es empregadas no OpenTitan s\u00e3o baseadas em tecnologias j\u00e1 utilizadas em tokens USB criptogr\u00e1ficos Google Titan e chips TPM para garantir a inicializa\u00e7\u00e3o verificada, instalados em servidores<\/a> infraestrutura da Google, bem como em dispositivos Chromebook e Pixel. <\/p>\n

Ao contr\u00e1rio das implementa\u00e7\u00f5es existentes do Root of Trust, o OpenTitan est\u00e1 em desenvolvimento de acordo com o conceito de \"seguran\u00e7a por meio da transpar\u00eancia\", que implica na disponibilidade do c\u00f3digo e dos esquemas, al\u00e9m da aplica\u00e7\u00e3o de um processo de desenvolvimento totalmente aberto, n\u00e3o vinculado a fornecedores ou fabricantes de chips espec\u00edficos. O OpenTitan tornou-se a primeira implementa\u00e7\u00e3o do Root of Trust aberta no mercado, que suporta um mecanismo de inicializa\u00e7\u00e3o segura p\u00f3s-qu\u00e2ntica, baseado no uso do algoritmo de assinatura digital SLH-DSA (Sphincs+), resistente \u00e0 quebra por computadores qu\u00e2nticos.

\"Come\u00e7ou<\/center>
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043f\u043e\u0441\u043b\u0435 \u0448\u0435\u0441\u0442\u0438 \u043b\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u043d\u0430\u0447\u0430\u043b\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u0447\u0438\u043f\u0430, \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u0431\u0430\u0437\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b OpenTitan. \u0427\u0438\u043f \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Nuvoton \u0438 \u043e\u0442\u043c\u0435\u0447\u0435\u043d \u043a\u0430\u043a \u043f\u0435\u0440\u0432\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f OpenTitan, \u0433\u043e\u0442\u043e\u0432\u0430\u044f \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0440\u0430\u0431\u043e\u0447\u0438\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u0430\u0445. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u0434\u043b\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u0430 \u043f\u0440\u043e\u0431\u043d\u0430\u044f \u043f\u0430\u0440\u0442\u0438\u044f, \u0430 \u0437\u0430\u043f\u0443\u0441\u043a \u043c\u0430\u0441\u0441\u043e\u0432\u043e\u0433\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u043d\u0430\u043c\u0435\u0447\u0435\u043d \u043d\u0430 \u0432\u0435\u0441\u043d\u0443 \u044d\u0442\u043e\u0433\u043e \u0433\u043e\u0434\u0430. 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