Google, AMD, NVIDIA ma Microsoft, o se vaega o le poloketi Caliptra, ua atiaʻe se poloka poloka mamanu matala (IP block) mo le faʻapipiʻiina o meafaigaluega mo le fausiaina o mea faʻapitoa (RoT, Root of Trust) i totonu o tupe meataalo. Caliptra o se vaega eseese meafaigaluega ma lona lava manatuaga, faagasologa ma le faʻatinoina o cryptographic primitives, lea e maua ai le faʻamaoniga o le faʻagasologa o taʻavale, le firmware faʻaaogaina ma le faʻaogaina o le masini e teuina i le mafaufau e le faʻafefe.
Caliptra e mafai ona faʻaogaina e tuʻufaʻatasia se iunite faʻapitoa tutoʻatasi i tupe meataalo eseese, lea e siaki ai le faʻamaoni ma faʻamaonia le faʻaogaina o le firmware faʻamaonia ma faʻatagaina e le gaosiga i totonu o le masini. E mafai e Caliptra ona faʻafaigofie ma faʻatasi le tuʻufaʻatasia o masini faʻamaonia faʻamaonia faʻapipiʻi i totonu o PPU, GPU, SoCs, ASICs, fesoʻotaʻiga fesoʻotaʻiga, SSD drive ma isi meafaigaluega.
O le faʻamaoni faʻamaonia ma le faʻamaoniaina o meafaigaluega e tuʻuina atu e le faʻavae o le a puipuia ai vaega o meafaigaluega mai le faʻaofiina o suiga leaga i le firmware ma faʻamautinoa le faagasologa o le utaina ma le teuina o faʻatonuga e puipuia ai le faiga autu mai le faʻafefeteina ona o osofaʻiga i vaega o meafaigaluega poʻo le suia o suiga leaga i filifili sapalai chip. O loʻo tuʻuina atu foʻi e Caliptra le malosi e faʻamaonia ai le moni o faʻafouga firmware ma faʻamaumauga e fesoʻotaʻi ma faʻamaumauga (RTU, Root of Trust for Update), faʻamaonia le faʻaleagaina o le firmware ma faʻamatalaga taua (RTD, Root of Trust for Detection), toe faʻaleleia le firmware ma faʻamaumauga (RTRec). , Root of Trust for Recovery).
Caliptra o loʻo atiaʻe i luga o le nofoaga o le Open Compute soʻotaga poloketi, e faʻatatau i le atinaʻeina o faʻamatalaga o meafaigaluega matala mo le faʻaogaina o nofoaga autu. O faʻamatalaga faʻapitoa e fesoʻotaʻi ma Caliptra o loʻo tufatufaina e faʻaaoga ai le Open Web Foundation Agreement (OWFa), ua fuafuaina mo le tufatufaina o tulaga tatala (e tutusa ma se laisene avanoa tatala mo faʻamatalaga). O le faʻaaogaina o le OWFa e mafai ai ona fatuina a latou lava oloa ma faʻatinoga faʻavae e faʻavae i luga o faʻamatalaga e aunoa ma le totogiina o totogi ma faʻatagaina soʻo se faʻalapotopotoga e auai i le atinaʻeina o faʻamatalaga.
O le faʻatinoga autu o le poloka IP o loʻo fausia i luga ole RISC-V processor SWeRV EL2 ma faʻapipiʻiina i le 384KB o le RAM (128KB DCCM, 128KB ICCM0 ma le 128KB SRAM) ma le 32KB ROM. O fa'ata'ita'iga fa'ata'otoga fa'atatau e aofia ai SHA256, SHA384, SHA512 ECC Secp384r1, HMAC-DRBG, HMAC SHA384, AES256-ECB, AES256-CBC ma AES256-GCM.
puna: opennet.ru