{"id":116366,"date":"2024-06-05T15:40:14","date_gmt":"2024-06-05T13:40:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/nabor-patchej-dlya-uskoreniya-shifrovaniya-deshifrovaniya-aes-gcm"},"modified":"2024-06-05T15:40:14","modified_gmt":"2024-06-05T13:40:14","slug":"nabor-patchej-dlya-uskoreniya-shifrovaniya-deshifrovaniya-aes-gcm","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/nabor-patchej-dlya-uskoreniya-shifrovaniya-deshifrovaniya-aes-gcm","title":{"rendered":"Ett upps\u00e4ttning patchar f\u00f6r att p\u00e5skynda kryptering\/dekryptering av AES-GCM","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Ett <\/p>\n

Den 2 juni presenterade Eric Biggers (ingenj\u00f6r p\u00e5 Google) nya implementationer av AES-XTS f\u00f6r betydligt h\u00f6gre prestanda p\u00e5 Intel\/AMD-processorer med hj\u00e4lp av nya kodsatser som AES-NI + AVX, VAES + AVX2, VAES + AVX10\/256 och VAES + AVX10\/512.<\/p>\n

AES-NI GCM-koden ers\u00e4tter den tidigare skriven av Intel och \u00e5tg\u00e4rdar existerande identifierade problem:<\/p>\n

\n

Detta uppdateringspaket l\u00e4gger till AES-GCM-implementering (Galois\/Counter-l\u00e4ge) i VAES och AVX512\/AVX10, vilket \u00f6kar prestandan f\u00f6r AES-GCM med upp till 162 %. Dessutom ers\u00e4tter det den gamla AES-NI GCM-koden fr\u00e5n Intel med ny kod som \u00e4r n\u00e5got snabbare och \u00e5tg\u00e4rdar flera problem, inklusive den enorma storleken p\u00e5 den bin\u00e4ra filen som \u00f6verstiger 250 KB. Se detaljer i r\u00e4ttelserna.<\/p>\n<\/blockquote>\n

\n

Det slutliga tillst\u00e5ndet f\u00f6r x86_64 AES-GCM:s assemblerkod \u00e4r att vi f\u00e5r tv\u00e5 assemblerfiler: en som genererar AES-NI-kod med eller utan AVX, och en annan som genererar VAES-kod med AVX512\/AVX10 med 256-bitars eller 512-bitars vektorer. Den saknar st\u00f6d f\u00f6r ensam VAES (utan AVX512\/AVX10). Detta skiljer sig n\u00e5got fr\u00e5n vad jag gjorde med AES-XTS, d\u00e4r en fil genererar AVX och AVX512\/AVX10-kod, inklusive kod som endast anv\u00e4nder VAES (utan AVX512\/AVX10), medan den andra filen endast genererar kod som skiljer sig fr\u00e5n AVX. Men f\u00f6r tillf\u00e4llet verkar detta vara det r\u00e4tta valet f\u00f6r varje specifik algoritm, med tanke p\u00e5 att begr\u00e4nsningen till 16 SIMD-register och 128-bitars vektorer har lett till vissa v\u00e4sentligt olika konstruktionsl\u00f6sningar i AES-GCM, men inte s\u00e5 mycket f\u00f6r AES-XTS. Processorer som endast levereras med VAES verkar ocks\u00e5 vara en tillf\u00e4llig f\u00f6reteelse, s\u00e5 vi kanske inte b\u00f6r anstr\u00e4nga oss f\u00f6r mycket f\u00f6r att st\u00f6dja denna kombination.<\/p>\n<\/blockquote>\n

K\u00e4lla: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

2 \u0438\u044e\u043d\u044f \u042d\u0440\u0438\u043a \u0411\u0438\u0433\u0433\u0435\u0440\u0441 (\u0438\u043d\u0436\u0435\u043d\u0435\u0440 \u0438\u0437 Google) \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u043d\u043e\u0432\u044b\u0435 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 AES-XTS \u0434\u043b\u044f \u0433\u043e\u0440\u0430\u0437\u0434\u043e \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel\/AMD \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043d\u043e\u0432\u044b\u0445 \u043d\u0430\u0431\u043e\u0440\u043e\u0432 \u043a\u043e\u0434\u0430 AES-NI + AVX, VAES + AVX2, VAES + AVX10\/256 \u0438 VAES + AVX10\/512. \u041a\u043e\u0434 AES-NI GCM \u0437\u0430\u043c\u0435\u043d\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0438\u0439, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0439 Intel, \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0435 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b: «\u042d\u0442\u043e\u0442 \u043d\u0430\u0431\u043e\u0440 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442 \u0432 VAES […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":116367,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-116366","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\udd47Patchpaket f\u00f6r att p\u00e5skynda kryptering\/avkryptering av AES-GCM | ProHoster","description":"Den 2 juni presenterade Eric Biggers (ingenj\u00f6r 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