{"id":113631,"date":"2024-02-16T04:02:41","date_gmt":"2024-02-16T02:02:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlen-pervyj-chip-na-baze-otkrytoj-platformy-opentitan"},"modified":"2024-02-16T04:02:41","modified_gmt":"2024-02-16T02:02:42","slug":"predstavlen-pervyj-chip-na-baze-otkrytoj-platformy-opentitan","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/predstavlen-pervyj-chip-na-baze-otkrytoj-platformy-opentitan","title":{"rendered":"Apresentado o primeiro chip baseado na plataforma aberta OpenTitan","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A organiza\u00e7\u00e3o sem fins lucrativos lowRISC, que supervisiona o desenvolvimento de um microprocessador livre baseado na arquitetura RISC-V, anunciou a disponibilidade do primeiro chip pronto para produ\u00e7\u00e3o comercial, constru\u00eddo sobre a plataforma aberta OpenTitan, desenvolvida como um projeto colaborativo independente. Inicialmente, o projeto foi fundado pela Google, mas ap\u00f3s a transfer\u00eancia para a organiza\u00e7\u00e3o lowRISC, 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 relacionados ao projeto foram publicados sob a licen\u00e7a Apache 2.0. <\/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 transpar\u00eancia\", que implica na disponibilidade do c\u00f3digo e dos esquemas, al\u00e9m de um processo de desenvolvimento totalmente aberto, n\u00e3o vinculado a fornecedores e fabricantes de chip espec\u00edficos. As solu\u00e7\u00f5es aplicadas 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

O OpenTitan \u00e9 uma plataforma para criar componentes de hardware confi\u00e1veis (RoT, Root of Trust), que pode ser aplicada onde \u00e9 necess\u00e1rio garantir a integridade do estado dos elementos de hardware e software do sistema, assegurando que partes cr\u00edticas do sistema n\u00e3o foram alteradas e s\u00e3o baseadas em c\u00f3digo verificado e autorizado pelo fabricante. O projeto oferece uma estrutura pronta, testada e confi\u00e1vel, permitindo aumentar a confian\u00e7a nas solu\u00e7\u00f5es criadas e reduzir custos no desenvolvimento de chips especializados para seguran\u00e7a. <\/p>\n

Os chips baseados em OpenTitan podem ser usados em placas-m\u00e3e de servidor, placas de rede, dispositivos de consumo, roteadores e dispositivos da Internet das Coisas para validar firmware e componentes carreg\u00e1veis, al\u00e9m de gerar identificadores de sistema criptograficamente \u00fanicos (prote\u00e7\u00e3o contra troca de hardware), proteger chaves criptogr\u00e1ficas (isolamento de chaves em caso de acesso f\u00edsico n\u00e3o autorizado ao equipamento), fornecer servi\u00e7os relacionados \u00e0 seguran\u00e7a e manter um log de auditoria isolado, que n\u00e3o pode ser editado ou apagado. <\/p>\n

OpenTitan inclui v\u00e1rios blocos l\u00f3gicos exigidos em chips RoT, como um microprocessador aberto baseado na arquitetura RISC-V (RV32IMCB Ibex), coprocessadores criptogr\u00e1ficos, gerador de n\u00fameros aleat\u00f3rios de hardware, gerenciador de chaves com suporte para DICE, mecanismo de armazenamento seguro de dados em mem\u00f3ria persistente e vol\u00e1til, tecnologias de prote\u00e7\u00e3o, blocos de entrada\/sa\u00edda, meios de inicializa\u00e7\u00e3o segura, etc. O dispositivo tamb\u00e9m fornece blocos com 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 lidar com assinaturas digitais baseadas em chave p\u00fablica, como RSA e algoritmos baseados em curvas el\u00edpticas.

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

\u041d\u0435\u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0430\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f lowRISC, \u043a\u0443\u0440\u0438\u0440\u0443\u044e\u0449\u0430\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043c\u0438\u043a\u0440\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430 \u043d\u0430 \u0431\u0430\u0437\u0435 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b RISC-V, \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u0438 \u043f\u0435\u0440\u0432\u043e\u0433\u043e \u0433\u043e\u0442\u043e\u0432\u043e\u0433\u043e \u043a \u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u043e\u043c\u0443 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0443 \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, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u043a\u0430\u043a \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u044b\u0439 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u044b\u0439 \u043f\u0440\u043e\u0435\u043a\u0442. \u0418\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u0435\u043a\u0442 \u0431\u044b\u043b \u043e\u0441\u043d\u043e\u0432\u0430\u043d \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Google, \u043d\u043e \u043f\u043e\u0441\u043b\u0435 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 lowRISC \u043a \u0435\u0433\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043f\u0440\u0438\u0441\u043e\u0435\u0434\u0438\u043d\u0438\u043b\u0438\u0441\u044c \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, \u043a\u0430\u043a Western Digital, Seagate, Nuvoton Technology, Winbond, […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":113632,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-113631","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 Apresentado o primeiro chip baseado na plataforma aberta OpenTitan | ProHoster","description":"A organiza\u00e7\u00e3o sem fins lucrativos lowRISC, que 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