{"id":423,"date":"2011-10-24T13:50:00","date_gmt":"2011-10-24T13:50:00","guid":{"rendered":""},"modified":"2011-11-18T16:33:51","modified_gmt":"2011-11-18T08:33:51","slug":"423","status":"publish","type":"post","link":"http:\/\/zerobox.org\/notes\/423.html","title":{"rendered":"\u5173\u4e8eBEAST\u653b\u51fb"},"content":{"rendered":"<p>\u4e91\u8212<\/p>\n<p>http:\/\/icylife.net\/yunshu\/show.php?id=815<\/p>\n<p>BEAST\u653b\u51fb\u7ec6\u8282\u5728http:\/\/www.educatedguesswork.org\/2011\/09\/security_impact_of_the_rizzodu.html\uff0c\u653b\u51fb\u7684\u672c\u8d28\u539f\u56e0\u67092\u4e2a\u3002 \u7b2c\u4e00\u4e2a\u662f\u57fa\u4e8eCBC\u7684\u52a0\u5bc6\u65b9\u5f0f\uff0c\u5757\u52a0\u5bc6\u7684\u7b2c\u4e00\u4e2ablock\uff0cC0 = E(Key, IV \u2295 M0)\uff0cC0\u662f\u5bc6\u6587\uff0cKey\u662f\u5bc6\u94a5\uff0cIV\u662f\u521d\u59cb\u5316\u5411\u91cf\uff0cM0\u662f\u660e\u6587\u3002\u4e4b\u540e\u7684block\uff0cCi = E(Key, Ci-1 \u2295 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