{"id":105364,"date":"2022-10-23T15:36:39","date_gmt":"2022-10-23T13:36:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlen-caliptra-otkrytyj-ip-blok-dlya-sozdaniya-zasluzhivayushhih-doveriya-chipov"},"modified":"2022-10-23T15:36:39","modified_gmt":"2022-10-23T13:36:47","slug":"predstavlen-caliptra-otkrytyj-ip-blok-dlya-sozdaniya-zasluzhivayushhih-doveriya-chipov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/predstavlen-caliptra-otkrytyj-ip-blok-dlya-sozdaniya-zasluzhivayushhih-doveriya-chipov","title":{"rendered":"Apresentado Caliptra, um bloco de IP aberto para criar chips confi\u00e1veis.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

As empresas Google, AMD, NVIDIA e Microsoft, no \u00e2mbito do projeto conjunto Caliptra, desenvolveram um bloco de design de chips de c\u00f3digo aberto (IP block) para integra\u00e7\u00e3o em chips que criam componentes de hardware confi\u00e1veis (RoT, Root of Trust). O Caliptra \u00e9 um bloco de hardware separado com sua pr\u00f3pria mem\u00f3ria, processador e implementa\u00e7\u00e3o de primitivas criptogr\u00e1ficas, garantindo a verifica\u00e7\u00e3o do processo de inicializa\u00e7\u00e3o, dos firmwares utilizados e das configura\u00e7\u00f5es do dispositivo armazenadas em mem\u00f3ria n\u00e3o vol\u00e1til. <\/p>\n

O Caliptra pode ser aplicado para integra\u00e7\u00e3o em v\u00e1rios chips de um bloco de hardware independente, realizando a verifica\u00e7\u00e3o de integridade e garantindo o uso de firmwares autorizados e verificados pelo fabricante no dispositivo. O Caliptra pode simplificar e unificar significativamente a integra\u00e7\u00e3o de mecanismos criptogr\u00e1ficos incorporados em CPU, GPU, SoC, ASIC, adaptadores de rede, SSDs e outros equipamentos. <\/p>\n

As ferramentas de verifica\u00e7\u00e3o criptogr\u00e1fica de integridade e autenticidade fornecidas pela plataforma permitir\u00e3o proteger os componentes de hardware contra altera\u00e7\u00f5es maliciosas nos firmwares e assegurar o processo de inicializa\u00e7\u00e3o e armazenamento de configura\u00e7\u00f5es para evitar a compromiss\u00e3o do sistema principal em resultado de ataques a componentes de hardware ou substitui\u00e7\u00f5es maliciosas nas cadeias de suprimento dos chips. O Caliptra tamb\u00e9m possui a capacidade de verificar a autenticidade das atualiza\u00e7\u00f5es de firmware e dados associados \u00e0 plataforma (RTU, Root of Trust for Update), detectar danos em firmwares e dados cr\u00edticos (RTD, Root of Trust for Detection), e restaurar firmwares e dados danificados (RTRec, Root of Trust for Recovery). <\/p>\n

O desenvolvimento do Caliptra ocorre na plataforma do projeto conjunto Open Compute, focado no desenvolvimento de especifica\u00e7\u00f5es de hardware abertas para equipar data centers. As especifica\u00e7\u00f5es relacionadas ao Caliptra s\u00e3o distribu\u00eddas sob os termos do Open Web Foundation Agreement (OWFa), criado para a dissemina\u00e7\u00e3o de padr\u00f5es abertos (semelhante a uma licen\u00e7a de software livre para especifica\u00e7\u00f5es). A utiliza\u00e7\u00e3o do OWFa permite que sejam criados produtos e implementa\u00e7\u00f5es derivadas baseadas na especifica\u00e7\u00e3o sem o pagamento de royalties e possibilita que qualquer organiza\u00e7\u00e3o participe do desenvolvimento da especifica\u00e7\u00e3o. <\/p>\n

A implementa\u00e7\u00e3o b\u00e1sica do bloco IP \u00e9 constru\u00edda com o processador aberto RISC-V SWeRV EL2 e equipada com 384KB de RAM (128KB DCCM, 128KB ICCM0 e 128KB SRAM) e 32KB de ROM. Os algoritmos criptogr\u00e1ficos suportados incluem SHA256, SHA384, SHA512, ECC Secp384r1, HMAC-DRBG, HMAC SHA384, AES256-ECB, AES256-CBC e AES256-GCM.

\"Apresentado<\/center>
\"Apresentado<\/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\u0438 Google, AMD, NVIDIA \u0438 Microsoft \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 Caliptra \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043b\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0439 \u0431\u043b\u043e\u043a \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043c\u0438\u043a\u0440\u043e\u0441\u0445\u0435\u043c (IP-\u0431\u043b\u043e\u043a) \u0434\u043b\u044f \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u043d\u0438\u044f \u0432 \u0447\u0438\u043f\u044b \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0437\u0430\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0434\u043e\u0432\u0435\u0440\u0438\u044f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 (RoT, Root of Trust). Caliptra \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u044b\u0439 \u0431\u043b\u043e\u043a \u0441\u043e \u0441\u0432\u043e\u0435\u0439 \u043f\u0430\u043c\u044f\u0442\u044c\u044e, \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u043c \u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u0440\u0438\u043c\u0438\u0442\u0438\u0432\u043e\u0432, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0432\u0435\u0440\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a \u0438 \u0445\u0440\u0430\u043d\u0438\u043c\u043e\u0439 \u0432 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":105365,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105364","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\udd47Apresentado Caliptra, bloco IP aberto para a cria\u00e7\u00e3o de chips confi\u00e1veis | ProHoster","description":"As empresas Google, AMD, NVIDIA e Microsoft, em um projeto conjunto chamado Caliptra, desenvolveram um bloco aberto de design de circuitos integrados (bloco IP) para 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