{"id":1864,"date":"2017-04-06T01:20:08","date_gmt":"2017-04-06T01:20:08","guid":{"rendered":"https:\/\/www.inforsec.org\/wp\/?p=1864"},"modified":"2017-04-06T01:20:26","modified_gmt":"2017-04-06T01:20:26","slug":"ssltls%e7%9a%84%e8%bf%91%e5%b9%b4%e7%9b%b8%e5%85%b3%e6%94%bb%e5%87%bb%e7%a0%94%e7%a9%b6%e7%bb%bc%e8%bf%b0%ef%bc%88%e5%9b%9b%ef%bc%89","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=1864","title":{"rendered":"SSL\/TLS\u7684\u8fd1\u5e74\u76f8\u5173\u653b\u51fb\u7814\u7a76\u7efc\u8ff0\uff08\u56db\uff09"},"content":{"rendered":"

SSL\/TLS\u7684\u8fd1\u5e74\u76f8\u5173\u653b\u51fb\u7814\u7a76\u7efc\u8ff0\uff08\u56db\uff09<\/strong><\/p>\n

\u534f\u8bae\u8bbe\u8ba1\u4e0d\u8db3\u7684\u6f0f\u6d1e<\/strong><\/p>\n

\u4f5c\u8005\uff1a\u97e6\u4fca\u7433 \u6e05\u534e\u5927\u5b66<\/p>\n

\u7b80\u4ecb\uff1a\u5728SSL\uff0fTLS\u7684\u534f\u8bae\u8bbe\u8ba1\u4e2d\uff0c\u9664\u4e86CBC\u6a21\u5f0f\uff0cRC4\u4e4b\u5916\uff0c\u8fd1\u51e0\u5e74\u8fd8\u53d1\u73b0\u4e86\u4e00\u4e9b\u5176\u4ed6\u76f8\u5173\u7684\u6f0f\u6d1e\u3002\u4eceK. Bhargavan \u56e2\u961f\u7684\u76f8\u5173\u7814\u7a76\u4e2d\uff0c\u4e09\u6b21\u63e1\u624b\u653b\u51fb\uff0cSLOTH\u653b\u51fb\uff0c\u964d\u7ea7\u5f39\u6027\u7b49\u90fd\u662f\u6709\u4ee3\u8868\u6027\u7684\u7814\u7a76\u3002<\/p>\n

<\/p>\n

\u4e09\u6b21\u63e1\u624b\u653b\u51fb<\/b><\/strong><\/h3>\n

\u4e09\u6b21\u63e1\u624b\u653b\u51fb\uff0c\u5229\u7528\u7684\u6f0f\u6d1e\u662f\u534f\u8bae\u7684\u8bbe\u8ba1\u95ee\u9898\uff0c\u4e3b\u8981\u662f\u5229\u7528TLS\u534f\u8bae\u7684RSA\uff0fDH\u5bc6\u94a5\u4ea4\u6362\u7f3a\u9677\u548c\u4f1a\u8bdd\u6062\u590d\u7684\u7f3a\u9677\u6765\u7ed5\u8fc7\u9632\u62a4\u63aa\u65bd\u3002\u4f5c\u4e3aTLS\u4f1a\u8bdd\u7684\u6838\u5fc3\uff0c\u4f1a\u8bdd\u7684\u4e3b\u5bc6\u94a5\u4ea7\u751f\u662f\u7ecf\u8fc7\u5ba2\u6237\u7aef\u9a71\u52a8\u4ea7\u751f\u7684\u3002\u5ba2\u6237\u7aef\u4f1a\u751f\u6210\u9884\u4e3b\u5bc6\u94a5\u548c\u4e00\u4e2a\u968f\u673a\u503c\u53d1\u9001\u7ed9\u670d\u52a1\u5668\uff0c\u800c\u670d\u52a1\u5668\u4e5f\u4f1a\u751f\u6210\u4e00\u4e2a\u968f\u673a\u503c\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\uff0c\u5e76\u4e14\uff0c\u9884\u4e3b\u5bc6\u94a5\u662f\u52a0\u5bc6\u4f20\u8f93\u7684\uff0c\u6839\u636e\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7684\u4e09\u4e2a\u503c\u751f\u6210\u4e3b\u5bc6\u94a5\u3002<\/p>\n

\u4e09\u6b21\u63e1\u624b\u653b\u51fb\u5728\u5b9e\u9645\u8fdb\u884c\u7684\u65f6\u5019\u9700\u8981\u5229\u7528\u6076\u610f\u7f51\u7ad9\u8fdb\u884c\u4e2d\u95f4\u4eba\u653b\u51fb\u3002\u5ba2\u6237\u7aef\u628a\u81ea\u5df1\u751f\u6210\u7684\u9884\u4e3b\u5bc6\u94a5\u548c\u968f\u673a\u503c\u53d1\u9001\u7ed9\u6076\u610f\u7f51\u7ad9\uff0c\u800c\u6076\u610f\u7f51\u7ad9\u4f5c\u4e3a\u6b63\u5e38\u7684\u63a5\u53d7\u65b9\uff0c\u53ef\u4ee5\u901a\u8fc7\u6b63\u5e38\u65b9\u5f0f\u89e3\u5bc6\u5ba2\u6237\u7aef\u7684\u9884\u4e3b\u5bc6\u94a5\u3002\u7136\u540e\u6076\u610f\u7f51\u7ad9\u518d\u4e0e\u76ee\u6807\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\uff0c\u5efa\u7acb\u65b0\u7684\u8fde\u63a5\uff0c\u5e76\u4f7f\u7528\u4ece\u5ba2\u6237\u7aef\u63a5\u6536\u5230\u9884\u4e3b\u5bc6\u94a5\u548c\u968f\u673a\u503c\uff0c\u5e76\u628a\u670d\u52a1\u5668\u7aef\u7684\u968f\u673a\u503c\u8f6c\u53d1\u7ed9\u5ba2\u6237\u7aef\u3002\u5f53\u63e1\u624b\u8fc7\u7a0b\u7ed3\u675f\u7684\u65f6\u5019\uff0c\u6076\u610f\u7f51\u7ad9\u5c31\u62e5\u6709\u4e86\u548c\u5ba2\u6237\u7aef\uff0c\u670d\u52a1\u5668\u76f8\u540c\u7684\u4e3b\u5bc6\u94a5\uff0c\u5e76\u5206\u522b\u548c\u5ba2\u6237\u7aef\uff0c\u670d\u52a1\u5668\u5efa\u7acb\u4e86\u8fde\u63a5\u3002\u4f46\u662f\u7531\u4e8e\u4e24\u4e2a\u8fde\u63a5\u4f7f\u7528\u7684\u8bc1\u4e66\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u800c\u4e14\u6bcf\u4e2a\u8fde\u63a5\u90fd\u62e5\u6709\u4e0d\u540c\u7684verify_data\u503c\u3002\u8fd9\u5c31\u9700\u8981\u5229\u7528\u4f1a\u8bdd\u6062\u590d\u7684\u673a\u5236\u6765\u8fdb\u884c\u4e0b\u4e00\u6b65\u7684\u7834\u89e3\u3002\u5728\u4f1a\u8bdd\u6062\u590d\u7684\u65f6\u5019\uff0c\u4e0d\u8981\u6c42\u8fdb\u884c\u8bc1\u4e66\u7684\u9a8c\u8bc1\uff0c\u4e5f\u6ca1\u6709\u8eab\u4efd\u7684\u9a8c\u8bc1\u3002\u800c\u4ec5\u4ec5\u901a\u8fc7\u4e3b\u5bc6\u94a5\u8fdb\u884c\u901a\u8baf\u53cc\u65b9\u7684\u8eab\u4efd\u8ba4\u8bc1\uff0c\u4ece\u800c\u5bfc\u81f4\u5728\u63e1\u624b\u7ed3\u675f\u7684\u65f6\u5019\uff0cFinished\u6d88\u606f\u5c06\u4e00\u81f4\uff0cverify_data\u76f8\u540c\u3002\u8fd9\u65f6\u653b\u51fb\u8005\u518d\u53d1\u8d77\u91cd\u534f\u5546\uff0c\u5229\u7528\u5ba2\u6237\u7aef\u7684\u8bc1\u4e66\u4f2a\u9020\u81ea\u5df1\u7684\u8eab\u4efd\uff0c\u4ece\u800c\u63a7\u5236\u4e24\u8fb9\u7684\u8fde\u63a5\uff0c\u53d1\u9001\u4efb\u610f\u4fee\u6539\u7684\u6570\u636e\u5185\u5bb9\u3002\u4ece\u800c\u5b8c\u6210\u653b\u51fb\u3002\u8fd9\u4e2a\u653b\u51fb\u653b\u7834\u4e86\u6240\u8c13\u5b89\u5168\u7684TLS\u8fde\u63a5\uff0c\u8b66\u9192\u8bbe\u8ba1\u8005\u5bf9\u534f\u8bae\u7684\u91cd\u65b0\u8bbe\u8ba1\u601d\u8003\u3002\u4f5c\u8005\u4e5f\u63d0\u51fa\u4e00\u4e9b\u6bd4\u8f83\u53ef\u9760\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5982\u7981\u7528\u91cd\u534f\u5546\uff0c\u53ea\u542f\u7528ECDHE\u52a0\u5bc6\u5957\u4ef6\u548c\u5bf9\u6240\u6709\u7f51\u7ad9\u90fd\u8981\u6c42\u9a8c\u8bc1\u5ba2\u6237\u7aef\u8bc1\u4e66\u7b49\uff0c\u4f46\u662f\u6bcf\u79cd\u89e3\u51b3\u65b9\u6848\u90fd\u6709\u4e00\u5b9a\u7684\u9002\u7528\u8303\u56f4\u3002[1]<\/p>\n

SLOTH\u653b\u51fb<\/b><\/strong><\/h3>\n

\u5bf9\u4e8eMD5\u548cSHA-1\u7684\u78b0\u649e\uff0c\u5f88\u591a\u5b9e\u8df5\u8005\u8ba4\u4e3a\uff0c\u5b83\u4eec\u5728\u8fd9\u4e9b\u534f\u8bae\u4e2d\u7684\u4f7f\u7528\u4ec5\u4f9d\u8d56\u4e8e\u7b2c\u4e8c\u524d\u7ea7\u6620\u50cf\uff0c\u4e0d\u53d7\u78b0\u649e\u7684\u5f71\u54cd\u3002\u4f5c\u8005\u5728[4]\u4e2d\u5219\u662f\u7cfb\u7edf\u7684\u8fdb\u884c\u7814\u7a76\u548c\u63ed\u793a\u8fd9\u4e2a\u8bba\u70b9\u7684\u8584\u5f31\uff0c\u5e76\u5728\u5bc6\u94a5\u4ea4\u6362\u534f\u8bae\u4e0a\u8bbe\u8ba1\u51fa\u4e00\u7c7b\u65b0\u7684\u57fa\u4e8e\u54c8\u5e0c\u7ed3\u6784\u7684\u6709\u6548\u7684\u51b2\u7a81\u67e5\u627e\u7b97\u6cd5\u7684\u78b0\u649e\u653b\u51fb\u3002\u901a\u8fc7\u5728TLS1.2\u5ba2\u6237\u7aef\u8eab\u4efd\u9a8c\u8bc1\u4e0a\u8fdb\u884c\u6f14\u793a\u653b\u51fb\u548c\u51e0\u4e4e\u73b0\u5b9e\u5316\u7684TLS1.1\uff0cIKEv2\u548cSSH-2\u7684\u964d\u7ea7\u653b\u51fb\uff0c\u8feb\u4f7f\u591a\u4e2aTLS\u5e93\u8fdb\u884c\u66f4\u65b0\uff0c\u7981\u7528\u4e3b\u6d41\u534f\u8bae\u4e2d\u7684\u5f31\u54c8\u5e0c\u51fd\u6570\u3002\u5176\u4e2dSLOTH(security losses from obsolete and truncated transcript hashes)\u662f\u653b\u51fb\u8005\u8feb\u4f7f\u4f7f\u7528\u5f31\u54c8\u5e0c\u7b97\u6cd5\uff0c\u5982\u5ba2\u6237\u7aefTLS1.2\u7248\u672c\u53ef\u4ee5\u5229\u7528MD5\u8fdb\u884c\u964d\u7ea7\u653b\u51fb\u3002\u5728\u63e1\u624b\u7684\u521d\u671f\uff0c\u5ba2\u6237\u7aef\u5c06Client Hello\u6570\u636e\u5305\u53d1\u751f\u7ed9\u670d\u52a1\u5668\uff1b\u6570\u636e\u5305\u4e2d\u58f0\u660e\u4e86\u670d\u52a1\u5668\u53ef\u4ee5\u4f7f\u7528\u7684\u7b7e\u540d\u548c\u52a0\u5bc6\u7b97\u6cd5\u3002\u7136\u800c\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u622a\u83b7\u8be5\u6570\u636e\u5305\uff0c\u5e76\u4e14\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2a\u8981\u6c42\u66f4\u6539\u7b97\u6cd5\u7684\u6570\u636e\u5305\uff0c\u8feb\u4f7f\u5ba2\u6237\u7aef\u63a5\u53d7\u3002\u81f3\u6b64\uff0c\u653b\u51fb\u8005\u5c31\u5f00\u59cb\u4e86\u5192\u5145\u76ee\u6807\u670d\u52a1\u5668\u7684\u653b\u51fb\u8fc7\u7a0b\u3002\u4f4d\u4e8e\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u4e4b\u95f4\u7684\u653b\u51fb\u8005\u901a\u8fc7\u53d1\u9001Server Hello\u3001Certificate\u548cServer Key Exchange\u6570\u636e\u5305\u54cd\u5e94\u5ba2\u6237\u7aef\u8bf7\u6c42\u3002\u5728Server Key Exchange\u4e2d\uff0c\u653b\u51fb\u8005\u4f7f\u7528RSA-MD5\u7b97\u6cd5\u66ff\u6362\u5ba2\u6237\u7aef\u5b9e\u9645\u6307\u5b9a\u7684\u7b97\u6cd5\u3002\u5ba2\u6237\u7aef\u63a5\u6536\u5230\u201c\u670d\u52a1\u5668\u7aef\u201d\u7684\u54cd\u5e94\uff0c\u5e76\u6700\u7ec8\u4f7f\u7528\u5f31\u54c8\u5e0c\u7b97\u6cd5\u3002\u968f\u540e\uff0c\u5ba2\u6237\u7aef\u518d\u6b21\u53d1\u9001Client Key Exchange\u54cd\u5e94\uff0c\u63e1\u624b\u6210\u529f\u3002TLS\u88ab\u964d\u7ea7\u540e\uff0c\u4e2d\u95f4\u4eba\u653b\u51fb\u8005\u5c31\u53ef\u4ee5\u5192\u5145\u670d\u52a1\u5668\uff0c\u89e3\u5bc6\u6240\u6709\u52a0\u5bc6\u7684\u6d41\u91cf\u3002SLOTH\u4e5f\u53ef\u4ee5\u53cd\u5411\u8fdb\u884c\uff0c\u5bfc\u81f4\u670d\u52a1\u5668\u7aef\u88ab\u4f7f\u7528MD5\u964d\u7ea7\u653b\u51fb\u3002\u9488\u5bf9\u8fd9\u4e2a\u653b\u51fb\uff0c\u6700\u597d\u7684\u65b9\u6848\u662f\u5728TLS1.2 \u540e\u7684\u7248\u672c\u4e2d\u5220\u9664MD5\uff0fSHA-1\u7b49\u5f31\u54c8\u5e0c\u7b97\u6cd5\u7684\u652f\u6301\uff0c\u5f53\u7136\u5bf9\u4e8eSSH\u548cVPN\u4e5f\u9700\u8981\u8fdb\u884c\u540c\u6837\u7684\u66f4\u6539\u3002[2]<\/p>\n

\u964d\u7ea7\u5f39\u6027<\/b><\/strong><\/h3>\n

\u964d\u7ea7\u653b\u51fb\u662f\u653b\u51fb\u8005\u4f7f\u7528\u4e00\u4e9b\u7b56\u7565\uff0c\u8ba9\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u91c7\u7528\u6bd4\u8f83\u5f31\u7684\u534f\u8bae\u6216\u8005\u52a0\u5bc6\u65b9\u5f0f\u7684\u4e00\u79cd\u653b\u51fb\u3002\u7c7b\u4f3c\u4e8eTLS\uff0cSSH\uff0cIPsec\u548cZRTP\u4e4b\u7c7b\u7684\u5bc6\u94a5\u4ea4\u6362\u534f\u8bae\u662f\u9ad8\u5ea6\u53ef\u914d\u7f6e\u7684\uff0c\u80fd\u591f\u652f\u6301\u591a\u79cd\u7248\u672c\u7684\u534f\u8bae\uff0c\u52a0\u5bc6\u7b97\u6cd5\u548c\u53c2\u6570\u7b49\u3002\u8fd9\u4e5f\u662f\u4e3a\u4e86\u8ba9\u534f\u8bae\u80fd\u591f\u5177\u6709\u66f4\u597d\u7684\u5e94\u7528\u8303\u56f4\uff0c\u6240\u5177\u5907\u7684\u654f\u6377\u6027\u3002\u4f5c\u8005\u5728[3]\u4e2d\u8bbe\u8ba1\u4e86\u4e00\u4e2a\u6b63\u5f0f\u7684\u6846\u67b6\u6765\u7814\u7a76\u964d\u7ea7\u5f39\u6027\u53ca\u5176\u4e0e\u5bc6\u94a5\u4ea4\u6362\u534f\u8bae\u7684\u5176\u4ed6\u5b89\u5168\u5c5e\u6027\u7684\u5173\u7cfb\u3002\u901a\u8fc7\u5256\u6790\u548c\u5f52\u7c7b\u7ecf\u5178\u653b\u51fb\u548c\u4e00\u4e9b\u65b0\u578b\u653b\u51fb\uff0c\u603b\u7ed3\u5176\u4e2d\u7684\u539f\u56e0\uff0c\u5e76\u8c03\u67e5\u73b0\u6709\u7684\u6807\u51c6\u964d\u7ea7\u5f39\u6027\u7684\u76f8\u5173\u5185\u5bb9\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u7ed3\u679c\u4e0e\u964d\u7ea7\u5b89\u5168\u6027\u7ed3\u5408\u8d77\u6765\uff0c\u5206\u6790\u51e0\u4e2a\u534f\u8bae\u5b9e\u73b0\u7684\u6761\u4ef6\uff0c\u6700\u540e\u8bbe\u8ba1\u4e00\u5957\u964d\u4f4e\u5b89\u5168\u6027\u7684\u6a21\u5f0f\uff0c\u5e76\u89e3\u91ca\u5982\u4f55\u4f7f\u7528\u5b83\u4eec\u6765\u52a0\u5f3a\u73b0\u6709\u534f\u8bae\u7684\u5b89\u5168\u6027\u3002<\/p>\n

\u8bba\u6587\u4e2d\u518d\u6b21\u63d0\u53ca\u5230Agility\uff0c\u73b0\u4ee3\u534f\u8bae\u5177\u6709\u52a0\u5bc6\u654f\u6377\u6027\uff0c\u5176\u63d0\u4f9b\u4e86\u591a\u79cd\u534f\u8bae\u548c\u5bc6\u7801\u6a21\u5f0f\u7684\u53ef\u914d\u7f6e\u9009\u62e9\uff0c\u4f7f\u5f97\u5728\u4e24\u4e2a\u5bf9\u7b49\u4f53\u4e4b\u95f4\u5b9e\u9645\u6267\u884c\u7684\u5bc6\u94a5\u4ea4\u6362\u53d6\u51b3\u4e8e\u5d4c\u5165\u5728\u4ea4\u6362\u4e2d\u7684\u534f\u5546\u9636\u6bb5\u3002\u5728\u786e\u4fdd\u5b9e\u9645\u7684\u534f\u8bae\u5b9e\u73b0\u65b9\u9762\uff0c\u654f\u6377\u6027\u5df2\u88ab\u8bc1\u660e\u5176\u91cd\u8981\u6027\u3002\u4e0d\u5e78\u7684\u662f\uff0c\u5bf9\u7b97\u6cd5\u654f\u6377\u6027\u7684\u652f\u6301\u4e3a\u964d\u7ea7\u653b\u51fb\u63d0\u4f9b\u4e86\u673a\u4f1a\uff0c\u5728\u8fd9\u79cd\u653b\u51fb\u4e2d\uff0c\u4e3b\u52a8\u7f51\u7edc\u653b\u51fb\u8005\u5e72\u6270\u534f\u5546\uff0c\u5bfc\u81f4\u8bda\u5b9e\u7684\u5bf9\u7b49\u65b9\u5b8c\u6210\u5bc6\u94a5\u4ea4\u6362\uff0c\u5c3d\u7ba1\u4f7f\u7528\u7684\u65b9\u5f0f\u6bd4\u81ea\u5df1\u4f7f\u7528\u7684\u6a21\u5f0f\u5f31\u3002\u4e3a\u4e86\u9632\u6b62\u5bf9\u7279\u5b9a\u534f\u8bae\u6a21\u5f0f\u7684\u653b\u51fb\uff0c\u5173\u95ed\u5bfc\u81f4\u5176\u534f\u5546\u7684\u914d\u7f6e\u4e5f\u662f\u5fc5\u8981\u7684\u3002\u4f5c\u8005\u5bf9\u964d\u7ea7\u5f39\u6027\u7684\u63a2\u8ba8\u4f9d\u7136\u662f\u5efa\u7acb\u5728mi TLS\u4e0a\u7684\uff0c\u8003\u8651Initiator \u548c\u00a0Responder\uff0c\u5f15\u5165\u4e86\u4e00\u4e2a\u964d\u7ea7\u4fdd\u62a4\u8c13\u8bcdDP\uff0c\u5b83\u53ef\u4ee5\u5bf9\u6210\u5bf9\u7684\u914d\u7f6e\u8fdb\u884c\u64cd\u4f5c\uff0c\u5e76\u4e14\u786e\u5b9a\u4e86\u4e00\u7ec4\u914d\u7f6e\u6765\u964d\u4f4e\u5f39\u6027\u3002\u8fd8\u5f15\u5165\u4e86\u4e00\u4e2a\u51fd\u6570Nego\uff0c\u5c06\u4e24\u4e2a\u76f8\u53cd\u89d2\u8272\u7684\u914d\u7f6e\u6620\u5c04\u5230\u534f\u8bae\u6a21\u5f0f\uff0c\u5728\u6ca1\u6709\u653b\u51fb\u8005\u7684\u60c5\u51b5\u4e0b\u5e94\u8be5\u534f\u5546\u3002\u800c\u4e14\u5982\u679c\u4ece\u7b26\u5408DP\u7684\u914d\u7f6e\u5f00\u59cb\u7684\u4e24\u4e2a\u5bf9\u7b49\u4f53\u53ea\u80fd\u534f\u5546Nego\u786e\u5b9a\u7684\u6a21\u5f0f\uff0c\u5373\u4f7f\u5728\u6709\u653b\u51fb\u8005\u7684\u60c5\u51b5\u4e0b\uff0c\u534f\u8bae\u4e5f\u4f1a\u964d\u7ea7\u5b89\u5168\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8eTLS\u534f\u8bae\uff0cNego\u7684\u5177\u4f53\u5b9e\u4f8b\u53ef\u80fd\u4f1a\u786e\u5b9a\u4e24\u4e2aTLS\u5bf9\u7b49\u4f53\u914d\u7f6e\u901a\u5e38\u4f1a\u5bfc\u81f4TLS 1.2\u4e0e\u5bc6\u7801\u5957\u4ef6\u7684\u534f\u5546\uff0c\u4f8b\u5982DHE-RSA-AES256-GCM-SHA384\uff0c\u5177\u67092048\u4f4dDH\u6a21\u6570\u3002\u4f46\u662f\uff0c\u5982\u679c\u670d\u52a1\u5668\u652f\u6301\u4e0d\u5b89\u5168\u6a21\u5f0f\uff0c\u4f8b\u5982DHE-EXPORT\u5bc6\u7801\u5957\u4ef6\uff0c\u5219\u5bf9\u624b\u53ef\u80fd\u4f1a\u8feb\u4f7f\u5176\u964d\u7ea7\u5230\u6b64\u6a21\u5f0f\u3002\u8fd9\u8868\u660e\u5982\u679c\u6ca1\u6709\u5176\u4ed6\u5bf9\u7b56\uff0cTLS 1.2\u5c06\u4e0d\u7b26\u5408\u7684\u5b9a\u4e49\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u4ec5\u5177\u6709\u4e00\u79cd\u53ef\u80fd\u6a21\u5f0f\u7684\u534f\u8bae\u663e\u7136\u662f\u5b89\u5168\u7684\u3002[3]<\/p>\n

\u4f5c\u8005\u4e5f\u8bc1\u5b9e\u4e86TLS1.2\u7248\u672c\u534f\u8bae\u5e76\u4e0d\u662f\u964d\u7ea7\u5b89\u5168\u7684\uff0c\u8fd8\u63cf\u8ff0\u4e86IKEv2\u548cZRTP\u7684\u65b0\u7684\u964d\u7ea7\u6f0f\u6d1e\uff0c\u5e76\u63d0\u51fa\u76f8\u5e94\u7684\u914d\u7f6e\u65b9\u6848\u6765\u907f\u514d\u8fd9\u4e9b\u6f0f\u6d1e\uff0c\u6700\u540e\u8fd8\u8bc1\u660e\u4e86SSHv2\u662f\u964d\u7ea7\u5b89\u5168\u7684\u3002<\/p>\n

\u603b\u7ed3<\/b><\/strong><\/h3>\n

SSL\/TLS\u00a0\u534f\u8bae\u5185\u5bb9\u6bd4\u8f83\u590d\u6742\uff0c\u5b58\u5728\u7740\u5f88\u591a\u672a\u77e5\u7684\u53d8\u6570\u3002\u53ea\u6709\u901a\u8fc7\u4ece\u5728\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u6f0f\u6d1e\u4e2d\u4e0d\u65ad\u5730\u8fdb\u884c\u603b\u7ed3\uff0c\u624d\u80fd\u591f\u9010\u6b65\u6539\u5584\uff0c\u6210\u4e3a\u66f4\u5b8c\u5907\uff0c\u66f4\u5b89\u5168\u7684\u901a\u8baf\u534f\u8bae\u3002\u901a\u8fc7\u603b\u7ed3TLS\u5404\u7248\u672c\u4e2d\u5b58\u5728\u7684\u95ee\u9898\uff0c\u5728TLS1.3\u4e2d\u505a\u51fa\u4e86\u4fee\u6539\uff0c\u5e9f\u9664\u4e86\u7c7b\u4f3c\u4e8eRC4\uff0cCBC\u52a0\u5bc6\u7b49\u65b9\u5f0f\uff0c\u5e9f\u5f03\u4e86\u5f31\u54c8\u5e0c\u7b97\u6cd5\u7684\u4f7f\u7528\uff0c\u4e5f\u91c7\u53d6\u4e86\u66f4\u6709\u6548\u7684\u63aa\u65bd\u6765\u9632\u6b62\u964d\u7ea7\u3002\u603b\u4e4b\uff0c\u534f\u8bae\u7684\u53d1\u5c55\u662f\u9760\u9010\u6e10\u79ef\u7d2f\u8d77\u6765\uff0c\u4e00\u70b9\u4e00\u70b9\u63a8\u8fdb\u7684\uff0cTLS1.3\u5c06\u66f4\u5177\u6709\u5b8c\u5907\u6027\u548c\u5b9e\u7528\u6027\u3002<\/p>\n

\u53c2\u8003\u6587\u732e<\/b><\/strong>\uff1a<\/b><\/strong><\/h3>\n

[ 1 ] K. Bhargavan, A. Delignat-Lavaud, C. Fournet. Triple Handshakes and Cookie Cutters: Breaking and Fixing Authentication over TLS. In IEEE Symposium on Security and Privacy (Oakland), 2014<\/p>\n

[ 2 ] B. Beurdouche, K. Bhargavan, A. Delignat-Lavaud. A Messy State of the Union: Taming the Composite State Machines of TLS. In IEEE Symposium on Security and Privacy (Oakland), 2015<\/p>\n

[ 3 ] K. Bhargavan, C. Brzuska, C. Fournet. Downgrade Resilience in Key-Exchange Protocols. In IEEE Symposium on Security and Privacy (Oakland), 2016<\/p>\n

[ 4 ] K. Bhargavan, G. Leurent. Transcript Collision Attacks: Breaking Authentication in TLS, IKE, and SSH. In Network and Distributed System Security Symposium (NDSS), 2016<\/p>\n","protected":false},"excerpt":{"rendered":"

SSL\/TLS\u7684\u8fd1\u5e74\u76f8\u5173\u653b\u51fb\u7814\u7a76\u7efc\u8ff0\uff08\u56db\uff09 \u534f\u8bae\u8bbe\u8ba1\u4e0d\u8db3\u7684\u6f0f\u6d1e \u4f5c\u8005\uff1a\u97e6\u4fca\u7433 \u6e05\u534e\u5927\u5b66 \u7b80\u4ecb\uff1a\u5728SS… Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1864","post","type-post","status-publish","format-standard","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1864"}],"version-history":[{"count":2,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1864\/revisions"}],"predecessor-version":[{"id":1866,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1864\/revisions\/1866"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1864"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}