{"id":528,"date":"2023-06-21T15:14:49","date_gmt":"2023-06-21T07:14:49","guid":{"rendered":"https:\/\/www.xudongvp.com\/?p=528"},"modified":"2024-04-13T23:55:22","modified_gmt":"2024-04-13T15:55:22","slug":"%e5%88%86%e7%bb%84%e5%af%86%e7%a0%81%e7%ae%97%e6%b3%95%e7%9a%84%e5%b7%a5%e4%bd%9c%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.xudongvp.com\/?p=528","title":{"rendered":"\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u7684\u5de5\u4f5c\u6a21\u5f0f"},"content":{"rendered":"\n

\u4e0e\u6d41\u5bc6\u7801\u57fa\u4e8e\u968f\u673a\u79cd\u5b50\u53ef\u4ee5\u6d3e\u751f\u51fa\u4efb\u610f\u957f\u5ea6\u7684\u4f2a\u968f\u673a\u6570\u5bc6\u94a5\u6d41\u7528\u4e8e\u5bf9\u660e\u6587\u4fe1\u606f\u8fdb\u884c\u5f02\u6216\u52a0\u5bc6\u7684\u65b9\u5f0f\u4e0d\u540c\uff0c\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u672c\u8eab\u901a\u5e38\u53ea\u80fd\u5904\u7406\u56fa\u5b9a\u957f\u5ea6\u7684\u6d88\u606f\u5206\u7ec4\u3002\u4f8b\u5982AES\uff0cSM4\u7b49\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u7684\u5206\u7ec4\u957f\u5ea6\u5747\u4e3a128\u6bd4\u7279\uff0c\u8fd9\u610f\u5473\u7740\u7b97\u6cd5\u672c\u8eab\u6bcf\u6b21\u6700\u591a\u53ea\u80fd\u5904\u740616\u4e2a\u5b57\u8282\u3002\u7f51\u7edc\u6d41\u91cf\u52a0\u5bc6\u548c\u6587\u4ef6\u52a0\u5bc6\u7b49\u573a\u666f\uff0c\u5747\u8981\u6c42\u5904\u7406\u66f4\u957f\u7684\u6d88\u606f\uff0c\u5229\u7528\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u5b8c\u6210\u4fe1\u606f\u52a0\u5bc6\u65f6\uff0c\u5fc5\u987b\u501f\u52a9\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u5e38\u89c1\u7684\u5de5\u4f5c\u6a21\u5f0f\u6709ECB\u3001 CBC\u3001CTR\u3001 CFB\u3001 OFB\u3001GCM\u3001CCM\u3001FPE\u7b49\uff1a<\/p>\n\n\n\n

– ECB\uff1aElectronic Codebook Mode,\u4e5f\u5373\u7535\u5b50\u5bc6\u7801\u672c\u6a21\u5f0f<\/p>\n\n\n\n

– CBC\uff1aCipher Block Chaining Mode,\u4e5f\u5373\u5bc6\u6587\u5206\u7ec4\u94fe\u63a5\u6a21\u5f0f<\/p>\n\n\n\n

– CTR\uff1aCounter Mode,\u4e5f\u5373\u8ba1\u6570\u5668\u6a21\u5f0f<\/p>\n\n\n\n

– CFB\uff1aCipher Feedback Mode,\u4e5f\u5373\u5bc6\u6587\u53cd\u9988\u6a21\u5f0f<\/p>\n\n\n\n

– OFB\uff1aOutput Feedback Mode,\u4e5f\u5373\u8f93\u51fa\u53cd\u9988\u6a21\u5f0f<\/p>\n\n\n\n

– GCM\uff1aGalois\/Counter Mode,\u4e5f\u5373\u4f3d\u7f57\u74e6\u8ba1\u6570\u5668\u6a21\u5f0f<\/p>\n\n\n\n

– CCM\uff1aCounter with CBC-MAC,\u4e5f\u5373\u5e26CBC-MAC\u7684\u6280\u672f\u5668\u6a21\u5f0f<\/p>\n\n\n\n

– FPE\uff1aFormat-Preserving Encryption Mode,\u4e5f\u5373\u4fdd\u7559\u683c\u5f0f\u52a0\u5bc6\u6a21\u5f0f<\/p>\n\n\n\n

\u672c\u6587\u8ba8\u8bba\u5728\u9762\u5bf9\u5177\u4f53\u7684\u5de5\u7a0b\u5b9e\u73b0\u4efb\u52a1\u65f6\u5982\u4f55\u4ece\u4e2d\u9009\u7528\u5408\u9002\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u800c\u6765\u81ea\u7b14\u8005\u7684\u4e00\u53e5\u8bdd\u7ed3\u8bba\u662f,\u9ed8\u8ba4\u91c7\u7528GCM\u3002<\/p>\n\n\n\n

\u5bc6\u7801\u5de5\u7a0b\u7684\u6700\u4f73\u5b9e\u8df5\u901a\u5e38\u8981\u6c42\u5728\u4fdd\u8bc1\u673a\u5bc6\u6027\u7684\u540c\u65f6\u4e5f\u8981\u4fdd\u8bc1\u5bc6\u6587\u7684\u5b8c\u6574\u6027\uff0c\u4e5f\u5373\u8981\u540c\u65f6\u6ee1\u8db3\u5bc6\u7801\u5b66\u7684\u57fa\u672c\u76ee\u6807CIA\u4e2d\u7684\u673a\u5bc6\u6027\uff08Confidentiality\uff09\u548c\u5b8c\u6574\u6027\uff08Integrity\uff09\u3002\u7f51\u7edc\u6d41\u91cf\u548c\u6587\u4ef6\u7684\u673a\u5bc6\u6027\u4fdd\u62a4\u57fa\u4e8e\u6027\u80fd\u7684\u8003\u8651\u901a\u5e38\u91c7\u7528\u6d41\u5bc6\u7801\u6216\u8005\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5,\u800c\u5b8c\u6574\u6027\u4fdd\u62a4\u65b9\u9762,\u5219\u901a\u5e38\u4f9d\u8d56\u4e8e\u6d88\u606f\u8ba4\u8bc1\u7801\uff08Mac Authentication Code\uff0cMAC\uff09\u3002\u673a\u5bc6\u6027\u65b9\u9762\u91c7\u7528\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u65f6,\u8981\u9009\u7528\u5408\u9002\u7684\u5de5\u4f5c\u6a21\u5f0f,\u7528\u4e8e\u5b8c\u6574\u6027\u4fdd\u62a4\u7684MAC\u8ba1\u7b97\u5219\u53ef\u4ee5\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u6784\u5efa\uff08\u5982HMAC\uff09,\u4e5f\u53ef\u4ee5\u57fa\u4e8e\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\uff08\u5982CBC-MAC\uff09\u6784\u5efa\u6216\u8005\u8bbe\u8ba1\u4e13\u95e8\u7684MAC\u7b97\u6cd5\uff08\u5982GMAC\uff09\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u6d88\u606f\u52a0\u5bc6\u4e0eMAC\u7801\u8ba1\u7b97\u7684\u7ec4\u5408\u65b9\u5f0f\u6709\u4ee5\u4e0b\u4e09\u79cd\uff0c\u4e0a\u56fe\u4e2d\u4e5f\u7ed9\u51fa\u4e86\u4e09\u79cd\u7ec4\u5408\u65b9\u5f0f\u7684\u56fe\u793a.<\/p>\n\n\n\n

1.\u52a0\u5bc6\u5e76\u8ba4\u8bc1\uff08Encrypt-and-MAC\uff0cEaM\uff09\uff1a \u5bf9\u660e\u6587\u201cP\u201d\u7684\u52a0\u5bc6\u5f97\u5230\u5bc6\u6587\u201cC\u201d\u4ee5\u53ca\u5e76\u5bf9\u660e\u6587\u8fdb\u884cMAC\u7801\u8ba1\u7b97\u5f97\u5230\u201cT\u201d.<\/p>\n\n\n\n

2.\u5148\u8ba4\u8bc1\u540e\u52a0\u5bc6\uff08MAC-then-Encrypt\uff0cMtE\uff09\uff1a \u5bf9\u660e\u6587\u201cP\u201d\u8ba1\u7b97MAC\u7801\u201cT\u201d\uff0c\u968f\u540e\u5c06\u660e\u6587\u201cP\u201d\u548cMAC\u4e00\u8d77\u52a0\u5bc6\u5f97\u5230\u5bc6\u6587\u201cC\u201d<\/p>\n\n\n\n

3.\u5148\u52a0\u5bc6\u540e\u8ba4\u8bc1\uff08Encrypte-then-MAC\uff0cEtM\uff09\uff1a \u5bf9\u660e\u6587\u201cP\u201d\u52a0\u5bc6\u5f97\u5230\u5bc6\u6587\u201cC\u201d\uff0c\u5bf9\u5bc6\u6587\u201dC\u201d\u6267\u884cMAC\u7801\u8ba1\u7b97\u5f97\u5230\u201cT\u201d<\/p>\n\n\n\n

\u5176\u4e2d\u81f3\u5c11\u5728\u7406\u8bba\u5c42\u9762\uff0cEaM\u5f53\u5c5e\u5b89\u5168\u6027\u6700\u5f31\u7684\u7ec4\u5408\u65b9\u5f0f\uff0c\u56e0\u4e3aMAC\u7801\u662f\u76f4\u63a5\u6839\u636e\u660e\u6587\u8ba1\u7b97\u5f97\u5230\u7684\uff0c\u6709\u53ef\u80fd\u6cc4\u9732\u660e\u6587\u7684\u90e8\u5206\u4fe1\u606f\u3002\u4f46\u662f\u6839\u636e\u9009\u7528\u7684MAC\u7b97\u6cd5\u7684\u5c5e\u6027\uff0c\u4e5f\u53ef\u4ee5\u914c\u60c5\u91c7\u7528\uff0cSSH\u534f\u8bae\u4e2d\u7f51\u7edc\u6d41\u91cf\u52a0\u5bc6\u9009\u7528\u4e86EaM\u7684\u7ec4\u5408\u65b9\u5f0f\u3002MtE\u4e2d\u7684MAC\u7801\u867d\u7136\u4e5f\u662f\u76f4\u63a5\u6839\u636e\u660e\u6587\u8ba1\u7b97\u5f97\u5230\u7684\uff0c\u4f46\u662fMAC\u53c8\u88ab\u8fdb\u4e00\u6b65\u52a0\u5bc6\u4fdd\u62a4\uff0c\u6240\u4ee5\u4e0d\u4f1a\u56e0\u4e3aMAC\u7801\u6cc4\u9732\u660e\u6587\u7684\u4efb\u4f55\u4fe1\u606f\uff0c\u4ece\u8fd9\u4e00\u4e2a\u89d2\u5ea6\u770b\uff0cMtE\u8981\u6bd4EaM\u5b89\u5168\u6027\u66f4\u597d\u4e00\u4e9b\u3002\u91c7\u7528MtE\u7ec4\u5408\u6a21\u5f0f\u8fdb\u884c\u89e3\u5bc6\u65f6\uff0c\u4e3a\u4e86\u5224\u65ad\u6d88\u606f\u5b8c\u6574\u6027\uff0c\u9700\u8981\u5c06\u660e\u6587\u548cMAC\u5168\u90e8\u89e3\u5bc6\u51fa\u6765\u624d\u80fd\u8fdb\u4e00\u6b65\u5224\u65ad\uff0c\u8fd9\u6837\u7684\u8fc7\u7a0b\u4e5f\u6210\u4e3a\u4e0d\u63a8\u8350\u4f7f\u7528MtE\u7ec4\u5408\u6a21\u5f0f\u7684\u539f\u56e0\u3002\u5e7f\u6cdb\u90e8\u7f72\u7684TLS\u534f\u8bae\u66fe\u7ecf\u91c7\u7528\u4e86MtE\u7684\u7ec4\u5408\u6a21\u5f0f\uff0c\u4f46\u662f\u5728\u6700\u65b0\u7684TLS1.3\u534f\u8bae\u4e2d\uff0cMtE\u6a21\u5f0f\u88ab\u5f03\u7528\u3002EtM\u7ec4\u5408\u6a21\u5f0f\u5bf9\u5e94\u7684\u89e3\u5bc6\u8fc7\u7a0b\uff0c\u4e0d\u9700\u8981\u6574\u4e2a\u89e3\u5bc6\u5bc6\u6587\u201cC\u201d\u5c31\u53ef\u4ee5\u6839\u636eMAC\u7801\u201cT\u201d\u5224\u65ad\u6536\u5230\u7684\u6d88\u606f\u662f\u5426\u6709\u88ab\u7be1\u6539\u8fc7\u3002\u8be5\u8fc7\u7a0b\u5e26\u6765\u7684\u4e00\u4e2a\u597d\u5904\u662f\uff0c\u653b\u51fb\u8005\u65e0\u6cd5\u8feb\u4f7f\u6d88\u606f\u63a5\u6536\u65b9\u89e3\u5bc6\u5df2\u7ecf\u88ab\u7be1\u6539\u8fc7\u7684\u6d88\u606f\uff0c\u4e5f\u56e0\u6b64\u5c31\u5b89\u5168\u6027\u800c\u8a00\uff0cEtM\u6bd4EaM\u548cMtE\u66f4\u597d\u3002\u5b89\u5168\u901a\u4fe1\u534f\u8baeIPSec\u4e2d\u91c7\u7528\u4e86EtM\u7684\u7ec4\u5408\u6a21\u5f0f\u3002\u5982\u679cEtM\u662f\u6700\u5b89\u5168\u7684\u7ec4\u5408\u6a21\u5f0f\uff0c\u4e3a\u4ec0\u4e48SSH\u548cTLS\u534f\u8bae\u4e2d\u6ca1\u6709\u91c7\u7528EtM? \u56e0\u4e3a\u5728\u8fd9\u4e9b\u534f\u8bae\u521b\u5efa\u65f6\uff0cEaM\u548cMtE\u7684\u7406\u8bba\u4e0a\u7684\u5f31\u70b9\u770b\u8d77\u6765\u4f3c\u4e4e\u5e76\u4e0d\u4f1a\u5f71\u54cd\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n

\u524d\u9762\u63d0\u5230TLS1.3\u4e2d\u5f03\u7528\u4e86MtE\u7684\u65b9\u5f0f\uff0c\u4f46\u5e76\u6ca1\u6709\u63d0\u53caTLS 1.3\u4e2d\u91c7\u7528\u7684\u65b0\u7684\u65b9\u5f0f\u3002\u6839\u636e\u524d\u9762\u7684\u5206\u6790\uff0c\u5408\u60c5\u63a8\u7406\u5e94\u8be5\u662f\u7528EtM\u4ee3\u66ffMtE\u3002\u8be5\u5408\u60c5\u63a8\u7406\u57fa\u672c\u6b63\u786e\uff0c\u4f46\u662f\u7531\u4e8e\u6d88\u606f\u52a0\u5bc6\u4e0eMAC\u7801\u8ba1\u7b97\u4e24\u79cd\u9700\u6c42\u57fa\u672c\u4e0a\u603b\u662f\u9700\u8981\u540c\u65f6\u6ee1\u8db3\uff0c\u5e76\u4e14\u7ec4\u5408\u5728\u7ec4\u5408\u8fc7\u7a0b\u4e2d\u603b\u4f1a\u51fa\u73b0\u5404\u79cd\u8bef\u7528\u5bfc\u81f4\u5b89\u5168\u4e8b\u4ef6\u9891\u53d1\uff0c\u8feb\u4f7f\u5bc6\u7801\u5b66\u754c\u7ed9\u51fa\u4e86\u66f4\u597d\u7684\u89e3\u51b3\u65b9\u6848\uff1a \u53ef\u8ba4\u8bc1\u52a0\u5bc6\u7b97\u6cd5\uff08Authenticated Cipher\uff09\u3002\u524d\u8ff0\u7684\u7ec4\u5408\u65b9\u5f0f\u8981\u6c42\u9996\u5148\u9009\u62e9\u5206\u7ec4\u5bc6\u7801\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u7136\u540e\u9009\u62e9\u5177\u4f53\u7684MAC\u7801\u7b97\u6cd5\uff0c\u6700\u540e\u9009\u62e9\u7ec4\u5408\u6a21\u5f0f\u5982EtM\u5b8c\u6210\u6d88\u606f\u8ba1\u7b97\u3002\u8fd9\u4e00\u8fc7\u7a0b\u4e2d\u5f88\u5bb9\u6613\u51fa\u73b0\u5404\u79cd\u5b89\u5168\u6027\u95ee\u9898\uff0c\u5982\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u548cMAC\u7b97\u6cd5\u4e0d\u6070\u5f53\u5730\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u94a5\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u53ef\u8ba4\u8bc1\u7b97\u6cd5\u76f4\u63a5\u5728\u4e00\u4e2a\u7b97\u6cd5\u8fc7\u7a0b\u4e2d\u5b8c\u6210\u4e86\u6d88\u606f\u52a0\u5bc6\u548cMAC\u8ba1\u7b97\u4e24\u79cd\u8fc7\u7a0b\uff0c\u4f7f\u7528\u8005\u65e0\u9700\u518d\u64cd\u5fc3\u524d\u8ff0\u8fc7\u7a0b\u4e2d\u5404\u79cd\u7ec6\u8282\u3002\u4ece\u8fd9\u4e00\u89d2\u5ea6\u51fa\u53d1\uff0c\u53ef\u4ee5\u5c06\u524d\u8ff0\u76847\u79cd\u5de5\u4f5c\u6a21\u5f0f\u8fdb\u884c\u5206\u6210\u4e24\u7c7b\uff0c\u4e00\u7c7b\u4ec5\u6267\u884c\u6d88\u606f\u52a0\u5bc6\u64cd\u4f5c\uff0c\u53e6\u4e00\u7c7b\u5219\u5c5e\u4e8e\u53ef\u8ba4\u8bc1\u52a0\u5bc6\u7b97\u6cd5\u7684\u8303\u7574\u3002\u524d\u4e00\u7c7b\u5305\u62ecECB\uff0cCBC\uff0cCTR\uff0cCFT\uff0cOFB\u4ee5\u53caFPE\uff0c\u540e\u4e00\u7c7b\u5305\u62ecGCM\u548cCCM\u3002TLS1.3\u4e2d\u542f\u7528MtE\u4e4b\u540e\uff0c\u5728\u7528\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u8fdb\u884c\u6d41\u91cf\u52a0\u5bc6\u65f6\u9009\u7528\u7684\u5c31\u662fGCM\u548cCCM\u6a21\u5f0f\u3002GCM\u548cCCM\u6a21\u5f0f\u53ef\u4ee5\u770b\u4f5c\u662f\u9075\u5faaEtM\u65b9\u5f0f\u5728\u4e00\u4e2a\u7b97\u6cd5\u5185\u90e8\u540c\u65f6\u5b8c\u6210\u6d88\u606f\u52a0\u5bc6\u548cMAC\u7801\u8ba1\u7b97\u7684\u53ef\u8ba4\u8bc1\u52a0\u5bc6\u6a21\u5f0f\uff0c\u5176\u4e2dGCM\u6a21\u5f0f\u5185\u90e8\u7ec4\u5408\u4e86CTR\u6a21\u5f0f\u548cGMAC\u7b97\u6cd5\uff0c\u800cCCM\u6a21\u5f0f\u5185\u90e8\u5219\u7ec4\u5408\u4e86CBC\u6a21\u5f0f\u548cCBC-MAC\u7b97\u6cd5\u3002<\/p>\n\n\n\n

\u56e0\u6b64\u5728\u4f7f\u7528\u524d\u4e00\u7c7b\u65f6\uff0c\u9664\u4e86\u5de5\u4f5c\u6a21\u5f0f\u672c\u8eab\u8fd8\u9700\u8981\u9009\u7528\u5408\u9002\u7684MAC\u7b97\u6cd5\uff0c\u5546\u5bc6\u9886\u57df\u63a8\u8350\u4f7f\u7528\u57fa\u4e8eSM3\u7684MAC\u7b97\u6cd5\uff1a HMAC-SM3\uff0c\u975e\u5546\u5bc6\u9886\u57df\u4e5f\u53ef\u4ee5\u91c7\u7528\u57fa\u4e8eSHA256\u7684MAC\u7b97\u6cd5\uff1a HMAC-SHA256\u3002\u4e0d\u63a8\u8350\u57fa\u4e8e\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u7684MAC\u7b97\u6cd5\uff0c\u5982\u57fa\u4e8eCBC\u6a21\u5f0f\u6784\u5efa\u51fa\u6765\u7684CBC-MAC\u6216\u8005CMAC\u7b49\u65b9\u6848\uff0c\u57fa\u4e8e\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u7684MAC\u7b97\u6cd5\u96be\u4ee5\u5b89\u5168\u5b9e\u73b0\u5e76\u4e14\u5728\u4f7f\u7528\u4e2d\u5bb9\u6613\u51fa\u9519\u3002\u53e6\u5916\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e13\u95e8\u6784\u5efa\u7684MAC\u7b97\u6cd5\uff0c\u5982GCM\u4e2d\u4f7f\u7528\u7684GMAC\u7b97\u6cd5\uff0c\u6216\u8005\u914d\u5408Chacha20\u6d41\u5bc6\u7801\u7b97\u6cd5\u7684Poly1305\u7b97\u6cd5\u3002\u5546\u5bc6\u5408\u89c4\u9886\u57df\uff0c\u6839\u636e\u76ee\u524d\u7684\u5546\u5bc6\u6807\u51c6\u8fdb\u5c55\uff0cGMAC\u5e94\u5f53\u662f\u53ef\u4ee5\u4f7f\u7528\u7684\u3002\u4e5f\u56e0\u6b64\uff0c\u5982\u679c\u5de5\u7a0b\u5141\u8bb8\uff0c\u4f18\u5148\u63a8\u8350\u4f7f\u7528SM4-GCM\u6a21\u5f0f\u3002GCM\u6a21\u5f0f\u662f\u9075\u5faaEtM\u6a21\u5f0f\u5728\u7b97\u6cd5\u5185\u90e8\u7ec4\u5408\u4e86CTR\u6a21\u5f0f\u548cGMAC\u7b97\u6cd5\u7684\u53ef\u8ba4\u8bc1\u52a0\u5bc6\u7b97\u6cd5\uff0c\u4e0b\u56fe\u4e2d\u7ed9\u51fa\u4e86GCM\u52a0\u5bc6\u548c\u89e3\u5bc6\u8fc7\u7a0b\u7684\u793a\u610f\u56fe\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\u5f53\u65e0\u6cd5\u9009\u7528GCM\u6a21\u5f0f\u65f6\uff0c\u5728\u975e\u5546\u5bc6\u9886\u57df\u53ef\u4ee5\u8003\u8651\u4f7f\u7528CCM\u6a21\u5f0f\uff0c\u4f8b\u5982AES-CCM\u3002\u8fd9\u662f\u56e0\u4e3a\u76ee\u524d\u591a\u6570\u5e73\u53f0\u4e0a\u90fd\u652f\u6301AES\u7b97\u6cd5\u7684\u786c\u4ef6\u6307\u4ee4\uff0c\u4f7f\u5f97AES-CCM\u5177\u6709\u8f83\u9ad8\u7684\u6027\u80fd\u3002\u4f46\u662f\u5728\u5546\u5bc6\u9886\u57df\uff0c\u7531\u4e8e\u591a\u6570\u5e73\u53f0\u76ee\u524d\u5e76\u4e0d\u652f\u6301SM4\u7684\u786c\u4ef6\u52a0\u901f\uff0c\u6240\u4ee5SM4-CCM\u7684\u8fd0\u884c\u6548\u7387\u4f1a\u6bd4\u8f83\u5dee\u3002\u56e0\u4e3a\u5f53\u524d\u7684SM4\u7b97\u6cd5\u7684\u8f6f\u4ef6\u5b9e\u73b0\u4f18\u5316\u4e3b\u8981\u662f\u901a\u8fc7SIMD\u6307\u4ee4\u5e76\u884c\u5904\u7406\u591a\u4e2a\u5206\u7ec4\u6765\u8fbe\u5230\u901f\u5ea6\u63d0\u5347\u7684\uff0c\u800c\u8fd9\u4e00\u4f18\u5316\u7b56\u7565\u65e0\u6cd5\u5e94\u7528\u4e8eCBC\u6a21\u5f0f\u5f53\u4e2d\uff0c\u76ee\u524d\u5373\u4f7f\u662f\u4f18\u5316\u8fc7\u7684SM4\u8f6f\u4ef6\u5b9e\u73b0\uff0c\u5728\u5927\u591a\u6570\u8ba1\u7b97\u73af\u5883\u4e2dCBC\u6a21\u5f0f\u4e0b\u80fd\u591f\u5904\u7406\u7684\u6570\u636e\u91cf\u4e0d\u8d85\u8fc7100MB\uff0c\u800cCTR\u6a21\u5f0f\u7b49\u53ef\u4ee5\u517c\u5bb9\u5206\u7ec4\u5e76\u884c\u5904\u7406\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u5219\u751a\u81f3\u53ef\u4ee5\u8fbe\u5230600MB\/s\u4ee5\u4e0a\u7684\u5904\u7406\u901f\u5ea6\uff08\u5355\u7ebf\u7a0b\u4e0b\uff09\uff0c\u56e0\u6b64SM4-CCM\u6a21\u5f0f\u4e2d\uff0cCBC-MAC\u7684\u8ba1\u7b97\u4f1a\u6210\u4e3a\u6574\u4e2a\u7b97\u6cd5\u751a\u81f3\u6574\u4e2a\u4e1a\u52a1\u573a\u666f\u7684\u6027\u80fd\u74f6\u9888\u3002\u8003\u8651\u5230\u4f18\u5316\u8fc7\u540e\u7684SM3\u7b97\u6cd5\u7684\u8f6f\u4ef6\u5b9e\u73b0\u7531\u4e8eSM4-CBC\uff0c\u56e0\u6b64\u5728\u5546\u5bc6\u9886\u57df\uff0c\u5f53\u4e0d\u5177\u5907\u91c7\u7528SM4-GCM\u6a21\u5f0f\u7684\u6761\u4ef6\u65f6\uff0c\u63a8\u8350\u4f18\u5148\u8003\u8651\u57fa\u4e8eEtM\u7684\u7ec4\u5408\u6a21\u5f0f\uff0c\u7ec4\u5408SM4\u7684\u5de5\u4f5c\u6a21\u5f0f\u548cHMAC-SM3\u3002<\/p>\n\n\n\n

\u63a5\u4e0b\u6765\u8ba8\u8bba\uff0c\u5982\u4f55\u5728ECB\u3001CBC\u3001CTR\u3001CFB\u3001OFB\u4ee5\u53caFPE\u9009\u7528\u5408\u9002\u7684\u5de5\u4f5c\u6a21\u5f0f\u3002ECB\u6a21\u5f0f\u7531\u4e8e\u65e0\u6cd5\u9690\u85cf\u6d88\u606f\u7684\u6a21\u5f0f\uff0c\u5929\u7136\u5177\u6709\u4e0d\u5b89\u5168\u7684\u5c5e\u6027\uff0c\u56e0\u6b64\u901a\u5e38\u4e0d\u5e94\u5f53\u91c7\u7eb3ECB\u6a21\u5f0f\u3002FPE\u4fdd\u7559\u683c\u5f0f\u52a0\u5bc6\u6a21\u5f0f\uff0c\u4ec5\u9002\u7528\u4e8e\u5bf9\u5bc6\u6587\u683c\u5f0f\u6709\u8981\u6c42\u7684\u573a\u666f\uff0c\u4f8b\u5982\u8eab\u4efd\u8bc1\u6216\u8005\u624b\u673a\u53f7\u52a0\u5bc6\u4e4b\u540e\u7684\u5bc6\u6587\u4ecd\u7136\u4fdd\u6301\u76f8\u5e94\u7684\u6570\u5b57\u683c\u5f0f\u3002\u5982\u679c\u4e1a\u52a1\u7cfb\u7edf\u7684\u6570\u636e\u5b58\u50a8\u65b9\u9762\u6709\u8fd9\u79cd\u9650\u5236\uff0c\u5219\u4f7f\u7528FPE\u5373\u53ef\uff0c\u6ce8\u610f\u4f7f\u7528FPE\u65f6\u8981\u8ba4\u771f\u7814\u8bfbNIST\u7684FPE\u6807\u51c6\uff0c\u4ee5\u786e\u4fdd\u4f7f\u7528\u573a\u666f\u7b26\u5408FPE\u7684\u5b89\u5168\u6027\u8981\u6c42\u3002\u5728\u540c\u6837\u6570\u636e\u52a0\u5bc6\u573a\u666f\u4e0b\uff0c\u4ec5\u9700\u8981\u4eceCBC\u3001CTR\u3001CFB\u3001OFB\u8fd94\u4e2a\u6a21\u5f0f\u4e2d\u8fdb\u884c\u9009\u62e9\u3002<\/p>\n\n\n\n

CBC\u6a21\u5f0f\u8981\u6c42\u5f85\u5904\u7406\u7684\u6d88\u606f\u7684\u957f\u5ea6\u90fd\u662f\u5206\u7ec4\u957f\u5ea6\u7684\u6574\u6570\u500d\uff0c\u5bf9\u4e8e\u4e0d\u6ee1\u8db3\u8fd9\u4e00\u8981\u6c42\u7684\u6d88\u606f\uff0c\u9996\u5148\u9700\u8981\u901a\u8fc7padding\u8865\u9f50\u3002CBC\u6a21\u5f0f\u7684\u52a0\u89e3\u5bc6\u56fe\u793a\u5982\u4e0b\u3002\u53ef\u4ee5\u770b\u5230\u5728\u52a0\u5bc6\u8fc7\u7a0b\u4e2d\uff0c\u4e0b\u4e00\u4e2a\u5206\u7ec4\u7684\u52a0\u5bc6\u8fc7\u7a0b\u4f9d\u8d56\u4e8e\u4e0a\u4e00\u4e2a\u5206\u7ec4\u7684\u52a0\u5bc6\u7ed3\u679c\uff0c\u8fd9\u79cd\u94fe\u5f0f\u7ed3\u679c\u5bfc\u81f4\u901a\u8fc7\u4f7f\u7528SIMD\u6280\u672f\u5e76\u884c\u5904\u7406\u591a\u4e2a\u5206\u7ec4\u7684\u4ee5\u63d0\u5347SM4\u7b97\u6cd5\u8f6f\u4ef6\u6267\u884c\u6548\u7387\u7684\u7b56\u7565\u65e0\u6cd5\u5e94\u7528\u4e8eCBC\u52a0\u5bc6\u8fc7\u7a0b\u4e2d\uff0c\u4e5f\u56e0\u6b64\u5bfc\u81f4SM4-CBC\u52a0\u5bc6\u8fc7\u7a0b\u7684\u6267\u884c\u6548\u7387\u96be\u4ee5\u63d0\u5347\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662fCBC\u7684\u89e3\u5bc6\u8fc7\u7a0b\u53ef\u4ee5\u901a\u8fc7\u591a\u4e2a\u5206\u7ec4\u7684\u5e76\u884c\u5904\u7406\u63d0\u5347\u6267\u884c\u6548\u7387\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

CFB\u6a21\u5f0f\u4e0eCBC\u6a21\u5f0f\u7c7b\u4f3c\uff0c\u52a0\u5bc6\u8fc7\u7a0b\u4e2d\u4e5f\u4f1a\u4ea7\u751f\u94fe\u5f0f\u7684\u76f8\u4e92\u4f9d\u8d56\uff0c\u56e0\u6b64\u540c\u6837\u96be\u4ee5\u7528\u5e76\u884c\u624b\u6bb5\u63d0\u901f\uff0c\u800c\u89e3\u5bc6\u65f6\u5219\u53ef\u4ee5\u4f7f\u7528\u5e76\u884c\u624b\u6bb5\u63d0\u901f\u3002CFB\u6a21\u5f0f\u7684\u597d\u5904\u662f\uff0c\u4e0d\u8981\u6c42\u660e\u6587\u4e00\u5b9a\u662f\u5206\u7ec4\u957f\u5ea6\u7684\u6574\u6570\u500d\uff0c\u4e5f\u4e0d\u9700\u8981\u5bf9\u6d88\u606f\u8fdb\u884cpadding\u8865\u9f50\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

OFB\u6a21\u5f0f\u901a\u8fc7\u5bf9Nonce\u7684\u5faa\u73af\u52a0\u5bc6\u4ea7\u751f\u4f2a\u968f\u673a\u5bc6\u94a5\u6d41\uff0c\u7136\u540e\u901a\u8fc7\u5f02\u6216\u64cd\u4f5c\u5bf9\u6d88\u606f\u8fdb\u884c\u52a0\u89e3\u5bc6\uff0c\u5bf9\u6d88\u606f\u957f\u5ea6\u6ca1\u6709\u8981\u6c42\uff0c\u4e5f\u56e0\u6b64\u65e0\u9700padding\u8865\u9f50\u3002\u4f46\u662f\u8fd9\u79cd\u65b9\u5f0f\u5728\u52a0\u5bc6\u548c\u89e3\u5bc6\u8fc7\u7a0b\u4e2d\u90fd\u5f15\u5165\u4e86\u94fe\u5f0f\u7684\u524d\u540e\u4f9d\u8d56\uff0c\u5bfc\u81f4\u65e0\u6cd5\u4f7f\u7528\u5e76\u884c\u624b\u6bb5\u8fdb\u884c\u52a0\u901f\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

CTR\u6a21\u5f0f\u4e0eOFB\u6a21\u5f0f\u7c7b\u4f3c\uff0c\u90fd\u662f\u901a\u8fc7\u4ea7\u751f\u4f2a\u968f\u673a\u5bc6\u94a5\u6d41\uff0c\u7136\u540e\u901a\u8fc7\u5f02\u6216\u64cd\u4f5c\u5bf9\u6d88\u606f\u8fdb\u884c\u52a0\u89e3\u5bc6\u3002\u4f46\u662f\u4e0eOFB\u4e0d\u540c\u7684\u662f\uff0cCTR\u6a21\u5f0f\u662f\u5bf9\u9012\u589e\u7684\u8ba1\u6570\u5668\u8fdb\u884c\u52a0\u5bc6\u4ea7\u751f\u76f8\u5e94\u7684\u5bc6\u94a5\u6d41\uff0c\u4e0d\u9700\u8981padding\uff0c\u4e5f\u6ca1\u6709\u5728\u52a0\u89e3\u5bc6\u8fc7\u7a0b\u4e2d\u5f15\u5165\u94fe\u5f0f\u7684\u524d\u540e\u4f9d\u8d56,\u56e0\u6b64CTR\u6a21\u5f0f\u7684\u52a0\u89e3\u5bc6\u5747\u53ef\u4ee5\u4f7f\u7528\u5e76\u884c\u624b\u6bb5\u8fdb\u884c\u63d0\u901f\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u9664\u4e86\u4e0a\u9762\u7684\u8ba8\u8bba\u4e4b\u5916\uff0cCBC\u6a21\u5f0f\u7684\u52a0\u89e3\u5bc6\u5f88\u96be\u505a\u5230\u5e38\u91cf\u65f6\u95f4\u5b9e\u73b0\uff0c\u8fd9\u4e00\u70b9\u5df2\u7ecf\u5728OpenSSL\u4e2d\u5f97\u5230\u8bc1\u5b9e\uff0c\u800c\u7531\u4e8eCBC\u6a21\u5f0f\u5f15\u53d1\u7684TLS\u7684\u5b89\u5168\u95ee\u9898\uff0c\u4e5f\u5907\u53d7\u77a9\u76ee\u3002\u53e6\u5916CBC\u6a21\u5f0f\u7684\u52a0\u5bc6\u8fc7\u7a0b\u65e0\u6cd5\u901a\u8fc7\u5e76\u884c\u624b\u6bb5\u8fdb\u884c\u52a0\u901f\uff0c\u5bf9\u4e1a\u52a1\u7cfb\u7edf\u6027\u80fd\u65b9\u9762\u4e5f\u4e0d\u6709\u597d\u3002 CFB\uff0cOFB\u4ee5\u53caCTR\u90fd\u9075\u5faa\u4e00\u4e2a\u601d\u8def\uff0c\u5c06\u5206\u7ec4\u5bc6\u7801\u8f6c\u6362\u6210\u7c7b\u4f3c\u4e8e\u6d41\u5bc6\u7801\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u7136\u800c\u5bf9\u6bd4\u4e4b\u4e0b\uff0cCFB\u548cOFB\u90fd\u65e0\u6cd5\u901a\u8fc7\u5e76\u884c\u52a0\u901f\uff0c\u76f8\u6bd4CTR\u6a21\u5f0f\u4e5f\u6ca1\u6709\u63d0\u4f9b\u989d\u5916\u7684\u5b89\u5168\u6027\u3002\u7efc\u4e0a\uff0c\u7b14\u8005\u63a8\u8350\u5728CBC\uff0cCFB\uff0cOFB\u4ee5\u53caCTR\u6a21\u5f0f\u4e2d\uff0c\u4f18\u5148\u9009\u7528CTR\u6a21\u5f0f\u3002<\/p>\n\n\n\n

\u7efc\u4e0a\uff0c\u5206\u7ec4\u5bc6\u7801\u7684\u5de5\u4f5c\u6a21\u5f0f\u9009\u7528\u65b9\u9762\uff0c\u975e\u5546\u5bc6\u573a\u666f\uff0c\u6309\u7167\u4e0b\u5217\u987a\u5e8f\u9009\u7528\u5de5\u4f5c\u6a21\u5f0f\uff1a<\/p>\n\n\n\n

\u5546\u5bc6\u573a\u666f\uff0c\u6309\u7167\u4e0b\u9762\u7684\u987a\u5e8f\u9009\u7528\u5de5\u4f5c\u6a21\u5f0f\uff1a<\/p>\n\n\n\n

AES-GCM –> AES-CCM –> EtM\u7ec4\u5408\u6a21\u5f0f\u7684AES-CTR + HMAC-SHA256<\/p>\n\n\n\n

\u5546\u5bc6\u573a\u666f,\u6309\u7167\u4e0b\u2faf\u7684\u987a\u5e8f\u9009\u2f64\u2f2f\u4f5c\u6a21\u5f0f\uff1a<\/p>\n\n\n\n

SM4-GCM –> EtM\u7ec4\u5408\u6a21\u5f0f\u7684SM4-CTR + HMAC-SM3<\/p>\n\n\n\n

\u539f\u6587\u94fe\u63a5\uff1ahttp:\/\/www.ciphergateway.com\/product\/38956.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e0e\u6d41\u5bc6\u7801\u57fa\u4e8e\u968f\u673a\u79cd\u5b50\u53ef\u4ee5\u6d3e\u751f\u51fa\u4efb\u610f\u957f\u5ea6\u7684\u4f2a\u968f\u673a\u6570\u5bc6\u94a5\u6d41\u7528\u4e8e\u5bf9\u660e\u6587\u4fe1\u606f\u8fdb\u884c\u5f02\u6216\u52a0\u5bc6\u7684\u65b9\u5f0f\u4e0d\u540c\uff0c\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u672c\u8eab\u901a\u5e38\u53ea\u80fd\u5904\u7406\u56fa\u5b9a\u957f\u5ea6\u7684\u6d88\u606f\u5206\u7ec4\u3002\u4f8b\u5982AES\uff0cSM4\u7b49\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u7684\u5206\u7ec4\u957f\u5ea6\u5747\u4e3a128\u6bd4\u7279\uff0c\u8fd9\u610f\u5473\u7740\u7b97\u6cd5\u672c\u8eab\u6bcf\u6b21\u6700\u591a\u53ea\u80fd\u5904\u740616\u4e2a\u5b57\u8282\u3002\u7f51\u7edc\u6d41\u91cf\u52a0\u5bc6\u548c\u6587\u4ef6\u52a0\u5bc6\u7b49\u573a\u666f\uff0c\u5747\u8981\u6c42\u5904\u7406\u66f4\u957f\u7684\u6d88\u606f\uff0c\u5229\u7528\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u5b8c\u6210\u4fe1\u606f\u52a0\u5bc6\u65f6\uff0c\u5fc5\u987b\u501f\u52a9\u5206\u7ec4\u5bc6\u7801\u7b97\u6cd5\u7684\u5de5\u4f5c\u6a21\u5f0f\uff0c\u5e38\u89c1\u7684\u5de5\u4f5c\u6a21\u5f0f\u6709ECB\u3001 CBC\u3001CTR\u3001 CFB\u3001 OFB\u3001GCM\u3001CCM\u3001FPE\u7b49\uff1a – ECB\uff1aElectronic Codebook Mode,\u4e5f\u5373\u7535\u5b50\u5bc6\u7801\u672c\u6a21\u5f0f – CBC\uff1aCipher Block Chai …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,23],"tags":[16,3],"class_list":["post-528","post","type-post","status-publish","format-standard","hentry","category-5","category-23","tag-16","tag-3"],"_links":{"self":[{"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=\/wp\/v2\/posts\/528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=528"}],"version-history":[{"count":1,"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=\/wp\/v2\/posts\/528\/revisions"}],"predecessor-version":[{"id":536,"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=\/wp\/v2\/posts\/528\/revisions\/536"}],"wp:attachment":[{"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xudongvp.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}