TLS 1.3\u7684\u5236\u5b9a\u8fc7\u7a0b\u662f\u201c\u900f\u660e\u201d\u7684\uff0c\u5373IETF\u53d1\u5e03\u7684\u8349\u6848\u4e2d\u4f1a\u7559\u4e0b\u82e5\u5e72\u95ee\u9898\uff0c\u76f8\u5173\u9886\u57df\u7684\u4e13\u5bb6\u5b66\u8005\u53ef\u4ee5\u5c31\u8fd9\u4e9b\u95ee\u9898\u6216\u8005\u81ea\u5df1\u6709\u7591\u95ee\u7684\u5176\u4ed6\u95ee\u9898\u901a\u8fc7\u90ae\u4ef6\u7cfb\u7edf\u8fdb\u884c\u5728\u7ebf\u8ba8\u8bba[7]\uff0c\u800c\u8ba8\u8bba\u7ed3\u679c\u4e5f\u4f1a\u5728\u66f4\u65b0\u540e\u7684\u8349\u6848\u7248\u672c\u4e2d\u6709\u6240\u4f53\u73b0\u3002\u76ee\u524d\u6700\u65b0\u53d1\u5e03\u7684\u8349\u6848\u7248\u672c\u662fTLS 1.3 draft 19 [8]\uff082017\u5e743\u6708\uff09\u3002<\/p>\n
\u9664\u6b64\u4e4b\u5916\uff0c\u8fd1\u4e24\u5e74\u4e5f\u51fa\u73b0\u4e86\u4e00\u7cfb\u5217\u5bf9TLS 1.3\u8349\u6848\u7684\u5206\u6790\u5de5\u4f5c\uff0c\u5982[9-13]\uff0c\u5728\u6807\u51c6\u6b63\u5f0f\u9881\u5e03\u4e4b\u524d\uff0c\u8fd9\u5bf9\u4e8e\u6211\u4eec\u5bf9TLS\u7684\u5168\u9762\u7406\u89e3\u4ee5\u53caTLS\u5b89\u5168\u9632\u62a4\u7684\u8bbe\u8ba1\u662f\u5927\u6709\u5e2e\u52a9\u7684\u3002<\/p>\n
\u95ee\u9898\u4e8c\uff1a\u4e3a\u4ec0\u4e48\u662fTLS 1.3<\/strong><\/p>\n \u6709\u4e00\u4e2a\u6bd4\u8f83\u6709\u8da3\u7684\u7ec6\u8282\uff0cTLS\u65b0\u6807\u51c6\u7684\u540d\u5b57\u5e76\u4e0d\u662fTLS 2.0\u6216\u8005\u5176\u4ed6\u540d\u5b57\uff0c\u800c\u662fTLS 1.3\uff0c\u5373\u5ef6\u7eed\u4e86TLS 1.0\u30011.1\u548c1.2\u7684\u540d\u79f0\u3002\u8fd9\u8bf4\u660e1.3\u662f\u4e4b\u524d\u7248\u672c\u7684\u5347\u7ea7\uff0cTLS \u534f\u8bae\u7684\u5927\u81f4\u6846\u67b6\u5e76\u672a\u53d1\u751f\u672c\u8d28\u6539\u53d8\u3002\u4e0b\u9762\u4e24\u56fe\u4e3aTLS 1.2\u548cTLS 1.3\u63e1\u624b\u534f\u8bae\u7684\u5bf9\u6bd4\uff08\u7ec6\u8282\u8bf7\u53c2\u7167\u6807\u51c6\u6587\u6863\uff09\u3002\u7136\u800c\uff0cTLS 1.3\u662fTLS\u6807\u51c6\u66f4\u65b0\u8fc7\u7a0b\u4e2d\u53d8\u52a8\u6700\u5927\u7684\u4e00\u6b21\uff0c\u9664\u4e86\u5bf9\u4e8e\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u7684\u82e5\u5e72\u95ee\u9898\u5982\u5bc6\u7801\u5957\u4ef6\u7684\u9009\u62e9\u3001\u5bc6\u94a5\u7684\u8ba1\u7b97\u65b9\u5f0f\u3001\u63e1\u624b\u6d88\u606f\u7684\u53d1\u9001\u65b9\u5f0f\u7b49\u505a\u4e86\u66f4\u6539\u4e4b\u5916\uff0cTLS 1.3\u8fd8\u589e\u52a0\u4e86\u65b0\u7684\u63e1\u624b\u6a21\u5f0f\uff0c\u4ee5\u6ee1\u8db3\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e0b\u7684\u9700\u6c42\u3002<\/p>\n \u56fe\u4e00\uff1aTLS 1.2\u63e1\u624b\u6846\u67b6<\/p>\n \u3000 \u56fe\u4e8c\uff1aTLS 1.3\u63e1\u624b\u6846\u67b6<\/p>\n \u95ee\u9898\u4e09\uff1aTLS 1.3\u505a\u51fa\u4e86\u54ea\u4e9b\u91cd\u5927\u6539\u52a8<\/strong><\/p>\n \u4e0e\u4e4b\u524d\u7248\u672c\u7c7b\u4f3c\uff0cTLS 1.3\u534f\u8bae\u53ef\u5206\u4e3a\u63e1\u624b\u534f\u8bae\u548c\u8bb0\u5f55\u534f\u8bae\uff0c\u524d\u8005\u8d1f\u8d23\u5bc6\u7801\u7ec4\u4ef6\u7684\u534f\u5546\u4ee5\u53ca\u5b89\u5168\u4fe1\u9053\u7684\u5efa\u7acb\uff0c\u540e\u8005\u5219\u662f\u5728\u5df2\u5efa\u7acb\u7684\u5b89\u5168\u4fe1\u9053\u4e2d\u4f20\u8f93\u79d8\u5bc6\u4fe1\u606f\u3002TLS 1.3\u8bbe\u8ba1\u7684\u7b2c\u4e00\u4e2a\u91cd\u8981\u76ee\u6807\u5c31\u662f\u907f\u514d\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7684\u7f3a\u9677\uff0c\u4e3a\u6b64\uff0c\u4e00\u90e8\u5206\u76f8\u5173\u7684\u6539\u52a8\u5982\u4e0b\uff1a<\/p>\n \uff081\uff09\u7981\u6b62\u4f7f\u7528RSA\u5bc6\u94a5\u4f20\u8f93\u7b97\u6cd5\u3002<\/p>\n \uff082\uff09\u7981\u6b62\u4e00\u4e9b\u5b89\u5168\u6027\u8f83\u5f31\u7684\u5bc6\u7801\u539f\u8bed\u5982MD5\u7684\u4f7f\u7528\u3002<\/p>\n \uff083\uff09\u4e0d\u518d\u652f\u6301\u91cd\u534f\u5546\u63e1\u624b\u6a21\u5f0f\u3002<\/p>\n \uff084\uff09\u63e1\u624b\u6d88\u606f\u91c7\u53d6\u4e86\u52a0\u5bc6\u64cd\u4f5c\uff0c\u5982\u56fe\u4e8c\u4e2d\u6807\u6709{}\u7684\u90e8\u5206\u3002<\/p>\n \uff085\uff09\u5b9e\u73b0\u4e86\u63e1\u624b\u534f\u8bae\u548c\u8bb0\u5f55\u534f\u8bae\u7684\u5bc6\u94a5\u5206\u79bb\u3002<\/p>\n \uff086\uff09\u5b9e\u73b0\u4e86\u4f1a\u8bdd\u5bc6\u94a5\u4e0e\u6574\u4e2a\u63e1\u624b\u6d88\u606f\u7684\u7ed1\u5b9a\u3002<\/p>\n \uff087\uff09\u8bb0\u5f55\u5c42\u53ea\u80fd\u4f7f\u7528AEAD\uff08Authenticated Encryption with Additional Data\uff09\u8ba4\u8bc1\u52a0\u5bc6\u6a21\u5f0f\u3002<\/p>\n \u76f8\u5e94\u7684\u6539\u52a8\u8fd8\u6709\u5f88\u591a\uff0c\u65b0\u53d1\u5e03\u7684\u8349\u6848\u4e2d\u4e5f\u4f1a\u660e\u786e\u8bf4\u660e\u76f8\u6bd4\u4e4b\u524d\u7248\u672c\u6240\u505a\u7684\u6539\u52a8\u3002\u8fd9\u4e9b\u6539\u52a8\u4e0d\u4ec5\u53ef\u4ee5\u907f\u514d\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7684\u95ee\u9898\uff0c\u5982\uff086\uff09\u4f7f\u5f97TLS\u53ef\u4ee5\u907f\u514d\u4e09\u6b21\u63e1\u624b\u653b\u51fb\u3002\u540c\u65f6\uff0c\u4e5f\u4f7f\u5f97TLS\u7684\u53ef\u8bc1\u660e\u5b89\u5168\u5206\u6790\u5de5\u4f5c\u66f4\u52a0\u65b9\u4fbf\uff0c\u5982\uff085\uff09\u4f7f\u5f97TLS 1.3\u53ef\u4ee5\u5b9e\u73b0\u5bc6\u94a5\u4e0d\u53ef\u533a\u5206\u6027\u8d28\u7684\u8bc1\u660e\uff0c\u800c\u5728TLS1.2\u4e2d\uff0c\u7531\u4e8e\u63e1\u624b\u534f\u8bae\u548c\u8bb0\u5f55\u534f\u8bae\u7684\u91cd\u53e0\uff0c\u65e0\u6cd5\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\u7684\u8bc1\u660e\u3002<\/p>\n \u4ece\u76ee\u524d\u53d1\u5e03\u7684\u6700\u65b0\u8349\u6848\u6765\u770b\uff0cTLS 1.3\u4e3b\u8981\u652f\u6301\u56db\u79cd\u63e1\u624b\u6a21\u5f0f\uff1a\uff081\uff09\u57fa\u4e8e\uff08EC\uff09DHE\u5bc6\u94a5\u4ea4\u6362\u7684\u63e1\u624b\u6a21\u5f0f\uff1b\uff082\uff09\u57fa\u4e8ePSK\u7684\u4f1a\u8bdd\u91cd\u542f\uff0c\u7531\u9884\u5171\u4eab\u5bc6\u94a5PSK\u8fdb\u884c\u5feb\u901f\u7b80\u77ed\u7684\u63e1\u624b\uff1b\uff083\uff09\u4f1a\u8bdd\u91cd\u542f\u4e0e\uff08EC\uff09DHE\u7ed3\u5408\u7684\u63e1\u624b\uff0c\u53ef\u4ee5\u63d0\u4f9b\u524d\u5411\u5b89\u5168\u6027\uff1b\uff084\uff09\u57fa\u4e8ePSK\u76840-RTT\uff08round-trip time\uff09\u63e1\u624b\uff0c\u5ba2\u6237\u7aef\u5229\u7528PSK\u5bfc\u51fa\u5bc6\u94a5\uff0c\u5728\u7b2c\u4e00\u8f6e\u5c31\u53d1\u9001\u79d8\u5bc6\u6570\u636e\uff0c\u964d\u4f4e\u4e86\u63e1\u624b\u7684\u5ef6\u8fdf\u3002\u5728\u6b64\u4e4b\u540e\u8fd8\u53ef\u4ee5\u7ee7\u7eed\u8fdb\u884c\uff08EC\uff09DHE\u7684\u5bc6\u94a5\u4ea4\u6362\u5b8c\u6210\u5b8c\u6574\u7684\u63e1\u624b\uff08\u8be5\u6b65\u4e3a\u53ef\u9009\uff09\u3002\u6ce8\u610f\u5230\uff0c0-RTT\u63e1\u624b\u7b2c\u4e00\u8f6e\u4e2d\u52a0\u5bc6\u6570\u636e\u6240\u4f7f\u7528\u7684\u5bc6\u94a5\u5e76\u6ca1\u6709\u670d\u52a1\u5668\u7684\u8d21\u732e\uff0c\u56e0\u6b64\u53ef\u80fd\u5b58\u5728\u91cd\u653e\u653b\u51fb\u3002\u53e6\u5916\uff0c\u63e1\u624b\u6a21\u5f0f\uff084\uff09\u4e0e\uff082\uff09\u6216\u8005\uff083\uff09\u7684\u533a\u522b\u4ec5\u5728\u4e8e\u662f\u5426\u5728\u7b2c\u4e00\u8f6e\u5c31\u4f20\u8f93\u79d8\u5bc6\u6570\u636e\u3002<\/p>\n \u53e6\u5916\uff0cTLS 1.3\u8fd8\u5b9a\u4e49\u4e86\u4e00\u79cd\u7279\u6b8a\u7684\u8ba4\u8bc1\u65b9\u5f0f\uff1a\u540e\u63e1\u624b\u8ba4\u8bc1\uff08post-handshake authentication\uff09\u3002\u5728TLS\u63e1\u624b\u8fc7\u7a0b\u4e2d\uff0c\u5ba2\u6237\u7aef\u7684\u8ba4\u8bc1\u662f\u53ef\u9009\u7684\uff0c\u6240\u8c13\u540e\u63e1\u624b\u8ba4\u8bc1\u6307\u7684\u662f\u63e1\u624b\u7ed3\u675f\u540e\uff0c\u5141\u8bb8\u670d\u52a1\u5668\u5728\u4efb\u4f55\u65f6\u523b\u5411\u5ba2\u6237\u7aef\u53d1\u8d77\u8eab\u4efd\u8ba4\u8bc1\u7684\u7533\u8bf7\uff0c\u4f5c\u4e3a\u56de\u590d\uff0c\u5ba2\u6237\u7aef\u4f1a\u53d1\u9001\u8bc1\u4e66\u4ee5\u53ca\u5bf9\u672c\u6b21\u8fde\u63a5\u63e1\u624b\u5185\u5bb9\u7684\u7b7e\u540d\uff0c\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u4f1a\u53d1\u9001\u5bc6\u94a5\u786e\u8ba4\u6d88\u606f\u4ee5\u63d0\u4f9b\u5bf9\u6574\u4e2a\u63e1\u624b\u6d88\u606f\u548c\u4f1a\u8bdd\u5bc6\u94a5\u7684\u786e\u8ba4\u3002\u8be5\u6761\u8ba4\u8bc1\u6d88\u606f\u662f\u5728\u8bb0\u5f55\u5c42\u7684\u5b89\u5168\u4fe1\u9053\u4e2d\u4f20\u8f93\u7684\u3002<\/p>\n \u603b\u7ed3\uff1a<\/strong><\/p>\n TLS 1.3 draft 19\u53d1\u5e03\u4e4b\u540e\uff0c\u8d77\u8349\u8005Eric Rescorla\u5728\u8ba8\u8bba\u5217\u8868\u4e2d\u5217\u51fa\u4e86\u4ecd\u5f85\u89e3\u51b3\u7684\u95ee\u9898\u4f9b\u5927\u5bb6\u8ba8\u8bba [14]\uff0c\u7531\u6b64\u53ef\u89c1TLS \u65b0\u6807\u51c6\u7684\u5236\u5b9a\u5de5\u4f5c\u4ecd\u7136\u5728\u8fdb\u884c\u4e2d\uff0c\u800c\u5bf9\u4e8eTLS 1.3\u7684\u7814\u7a76\u4e5f\u4f1a\u6210\u4e3a\u672a\u6765\u7684\u70ed\u70b9\u65b9\u5411\u3002\u4e0e\u6b64\u540c\u65f6\uff0cTLS 1.2\u4ecd\u7136\u662f\u76ee\u524d\u751a\u81f3\u672a\u6765\u76f8\u5f53\u4e00\u6bb5\u65f6\u95f4\u5185\u88ab\u666e\u904d\u4f7f\u7528\u6216\u8005\u517c\u5bb9\u7684TLS \u7248\u672c\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4TLS 1.2\u5bf9TLS 1.3\u7684\u5b89\u5168\u6027\u5e26\u6765\u5f71\u54cd\uff0c\u8fd9\u4e5f\u662f\u672a\u6765\u7814\u7a76\u7684\u91cd\u8981\u65b9\u5411\u3002<\/p>\n \u90e8\u5206\u53c2\u8003\u6587\u732e\uff1a<\/strong><\/p>\n [1]AlFardan N J, Paterson K G. Lucky thirteen: Breaking the TLS and DTLS record protocols [C]. Proceedings of 2013 IEEE Symposium on Security and Privacy (S&P), 2013. 526\u2013540.<\/p>\n [2]Bhargavan K, Lavaud A D, Fournet C, et al. Triple handshakes and cookie cutters: Breaking and fixing authentication over TLS [C]. Proceedings of 2014 IEEE Symposium on Security and Privacy (S&P), 2014. 98\u2013113.<\/p>\n [3]Mavrogiannopoulos N, Vercauteren F, Velichkov V, et al. A cross-protocol attack on the TLS protocol[C]\/\/Proceedings of the 2012 ACM conference on Computer and communications security. ACM, 2012: 62-72.<\/p>\n [4]AlFardan N J, Bernstein D J, Paterson K G, et al. On the Security of RC4 in TLS [C]. Proceedings of 22nd USENIX Security Symposium, 2013. 305\u2013320.<\/p>\n [5]Bleichenbacher D. Chosen ciphertext attacks against protocols based on the RSA encryption standard PKCS #1 [C]. Advances in Cryptology\u2014CRYPTO\u201998, 1998. 1\u201312.<\/p>\n [6]Codenomicon. The Heartbleed Bug [EB\/OL]. http:\/\/heartbleed.com, April 2014.<\/p>\n [7]https:\/\/www.ietf.org\/mail-archive\/web\/tls\/current\/maillist.html.<\/p>\n [8]Rescorla E. The Transport Layer Security (TLS) Protocol Version 1.3 – draft-ietf-tls-tls13-09[S]. https:\/\/tools.ietf.org\/html\/draft-ietf-tls-tls13-19, March, 2017.<\/p>\n [9]Dowling B, Fischlin M, G\u00fcnther F, et al. A cryptographic analysis of the TLS 1.3 handshake protocol candidates [C]. Proceedings of the 22nd ACM SIGSAC Conference on Computer and Communications Security (CCS), 2015. 1197\u20131210.<\/p>\n [10]Cremers C, Horvat M, Scott S, et al. Automated analysis and verification of TLS 1.3: 0-RTT, resumption and delayed authentication[C]\/\/Security and Privacy (SP), 2016 IEEE Symposium on. IEEE, 2016: 470-485.<\/p>\n [11]Fischlin M, G\u00fcnther F, Schmidt B, et al. Key confirmation in key exchange: a formal treatment and implications for TLS 1.3[C]\/\/Security and Privacy (SP), 2016 IEEE Symposium on. IEEE, 2016: 452-469.<\/p>\n [12]Li X, Xu J, Zhang Z, et al. Multiple handshakes security of TLS 1.3 candidates[C]\/\/Security and Privacy (SP), 2016 IEEE Symposium on. IEEE, 2016: 486-505.<\/p>\n [13]Krawczyk H, Wee H. The OPTLS protocol and TLS 1.3[C]\/\/Security and Privacy (EuroS&P), 2016 IEEE European Symposium on. IEEE, 2016: 81-96.<\/p>\n [14]https:\/\/www.ietf.org\/mail-archive\/web\/tls\/current\/msg22593.html.<\/p>\n \u4f5c\u8005\u7b80\u4ecb\uff1a<\/strong><\/p>\n \u674e\u65b0\u5b87\uff0c\u672c\u79d1\u3001\u7855\u58eb\u5c31\u8bfb\u4e8e\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\uff0c\u73b0\u4e3a\u4e2d\u56fd\u79d1\u5b66\u9662\u8f6f\u4ef6\u7814\u7a76\u6240\u5728\u8bfb\u535a\u58eb\u751f\uff0c\u76ee\u524d\u7684\u7814\u7a76\u65b9\u5411\u4e3b\u8981\u4e3a\u5bc6\u7801\u534f\u8bae\u7684\u8bbe\u8ba1\u4e0e\u5b89\u5168\u6027\u5206\u6790\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u4f5c\u8005\uff1a\u674e\u65b0\u5b87 \u4e2d\u79d1\u9662\u8f6f\u4ef6\u6240 TLS 1.3\u662fIETF\u6b63\u5728\u5236\u5b9a\u7684TLS \u65b0\u6807\u51c6\u3002TLS \u81ea\u6807\u51c6\u5316\u81f3\u4eca\u5df2… Continue reading ![\"\"](\"https:\/\/www.inforsec.org\/wp\/wp-content\/uploads\/2017\/04\/\u56fe\u72471-3.png\")
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