{"id":35504,"date":"2019-10-31T22:04:42","date_gmt":"2019-10-31T19:04:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/google-otkryl-sistemu-dlya-analiza-naborov-dannyh-bez-narusheniya-konfedentsialnosti\/"},"modified":"2019-10-31T22:04:42","modified_gmt":"2019-10-31T19:04:42","slug":"google-otkryl-sistemu-dlya-analiza-naborov-dannyh-bez-narusheniya-konfedentsialnosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/google-otkryl-sistemu-dlya-analiza-naborov-dannyh-bez-narusheniya-konfedentsialnosti","title":{"rendered":"Google a deschis un sistem pentru analiza seturilor de date f\u0103r\u0103 a \u00eenc\u0103lca confiden\u021bialitatea","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Compania Google a prezentat<\/a><\/noindex> protocolul criptografic pentru calculul confiden\u021bial multipartit Private Join and Compute<\/a><\/noindex>, care permite analiza \u0219i calculul pe seturi de date criptate de la mai mul\u021bi participan\u021bi, p\u0103str\u00e2nd confiden\u021bialitatea datelor fiec\u0103rui participant (fiecare participant nu are posibilitatea de a ob\u021bine informa\u021bii despre datele altor participan\u021bi, dar poate efectua calcule generale asupra acestora f\u0103r\u0103 decriptare). Codul de implementare a protocolului a fost deschis<\/a><\/noindex> sub licen\u021ba Apache 2.0.<\/p>\n

Private Join and Compute permite transmiterea unui set privat de \u00eenregistr\u0103ri unei ter\u021be p\u0103r\u021bi, care va putea efectua analiza acestuia \u0219i va evalua \u00een mod general diferen\u021bele fa\u021b\u0103 de propriul s\u0103u set, dar nu are acces la valorile exact ale \u00eenregistr\u0103rilor specifice. De exemplu, exist\u0103 posibilitatea ca \u00een setul de date criptate s\u0103 se ob\u021bin\u0103 informa\u021bii cum ar fi num\u0103rul de identificatori care coincid cu propriul s\u0103u set \u0219i sumele valorilor \u00eenregistr\u0103rilor cu identificatori coinciden\u021bi. Totu\u0219i, nu se poate \u0219ti ce valori \u0219i identificatori sunt prezente \u00een set.<\/p>\n

Protocolul Private Join and Compute, de asemenea cunoscut ca Private Intersection-Sum, fondat<\/a><\/noindex> pe combina\u021bia protocolului transferului aleatoriu oblivios<\/a><\/noindex> (Random Oblivious Transfer), criptate , o structur\u0103 probabilistic\u0103 care permite o corectare fals\u0103 pentru un element lips\u0103, dar exclude omisiunea unui element existent (adic\u0103, cu o anumit\u0103 probabilitate, este posibil s\u0103 existe un fals pozitiv pentru un certificat valid, dar certificatele revocate vor fi garantat identificate).<\/a><\/noindex> \u0219i mascarea dubl\u0103 Poliga \u2014 Hellman<\/a><\/noindex>.<\/p>\n

Sistemul propus ar putea fi util, de exemplu, atunci c\u00e2nd o institu\u021bie medical\u0103 are informa\u021bii despre starea de s\u0103n\u0103tate a pacien\u021bilor, iar alta despre prescrierea unui nou medicament preventiv. Protocolul \u201ePrivate Join and Compute\u201d permite, f\u0103r\u0103 a dezv\u0103lui informa\u021bii, combinarea seturilor de date criptate \u0219i generarea de statistici generale, care pot ajuta la \u00een\u021belegerea dac\u0103 medicamentul prescris scade inciden\u021ba bolilor sau nu. Un alt exemplu, bazat pe datele accidentelor din baza de date a poli\u021biei rutiere \u0219i pe utilizarea unor instrumente avansate de siguran\u021b\u0103 \u00een automobile, poate evalua dac\u0103 introducerea acestor instrumente influen\u021beaz\u0103 num\u0103rul de accidente.<\/p>\n

Un alt exemplu, c\u00e2nd pe baza bazei de date a angaja\u021bilor unei companii \u0219i a datelor despre achizi\u021biile dintr-o alta, se poate calcula c\u00e2\u021bi angaja\u021bi din prima companie au efectuat achizi\u021bii \u00een a doua \u0219i \u00een ce sum\u0103. \u00cen contextul re\u021belelor publicitare, astfel de calcule pot fi efectuate pentru a evalua eficien\u021ba campaniilor publicitare, oper\u00e2nd cu liste de utilizatori c\u0103rora le-a fost afi\u0219at\u0103 reclama (sau care au dat clic pe link) \u0219i care au efectuat achizi\u021bii \u00een magazinul online.<\/p>\n

<\/a><\/noindex><\/p>\n

Sursa: opennet.ro<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-35504","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47Google a lansat un sistem pentru analiza seturilor de date f\u0103r\u0103 a \u00eenc\u0103lca confiden\u021bialitatea | ProHoster","description":"Compania Google a prezentat un protocol 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