{"id":6176,"date":"2022-12-16T23:01:52","date_gmt":"2022-12-16T15:01:52","guid":{"rendered":"https:\/\/www.chenqing.work\/?p=6176"},"modified":"2023-01-01T20:17:28","modified_gmt":"2023-01-01T12:17:28","slug":"%e5%af%86%e7%a0%81%e6%8a%80%e6%9c%af%e6%89%ab%e7%9b%b2-%e5%af%b9%e7%a7%b0%e5%8a%a0%e5%af%86","status":"publish","type":"post","link":"https:\/\/www.chenqing.work\/?p=6176","title":{"rendered":"\u5bc6\u7801\u6280\u672f\u626b\u76f2\uff0cPart 1\uff1a\u5bf9\u79f0\u52a0\u5bc6"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1282\" src=\"https:\/\/www.chenqing.work\/wp-content\/uploads\/2022\/12\/daniel-k-cheung-nXKNn2L4fDw-unsplash.jpg\" alt=\"\" class=\"wp-image-6365\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83c\udfaf <strong>\u5bc6\u7801\u6280\u672f\u626b\u76f2\uff0cPart 1\uff1a\u5bf9\u79f0\u52a0\u5bc6<\/strong><\/li>\n\n\n\n<li><a href=\"https:\/\/www.chenqing.work\/?p=6599\" data-type=\"URL\" data-id=\"https:\/\/www.chenqing.work\/?p=6599\">\u5bc6\u7801\u6280\u672f\u626b\u76f2\uff0cPart 2\uff1a\u975e\u5bf9\u79f0\u52a0\u5bc6<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.chenqing.work\/?p=6669\" data-type=\"URL\" data-id=\"https:\/\/www.chenqing.work\/?p=6669\">\u5bc6\u7801\u6280\u672f\u626b\u76f2\uff0cPart 3\uff1a\u8ba4\u8bc1<\/a><\/li>\n<\/ul>\n\n\n\n<p>\u4eba\u7c7b\u6700\u8f83\u771f\u3001\u6280\u827a\u6700\u7cbe\u6e5b\u7684\u4e8b\u4e1a\u662f\u519b\u4e8b\uff0c\u5bc6\u7801\u6280\u672f\u6700\u5927\u653e\u5f02\u5f69\u7684\u5730\u65b9\u4e5f\u5728\u519b\u4e8b\uff0c\u6218\u4e89\u4e2d\u9700\u8981\u901a\u8fc7\u65e0\u7ebf\u7535\u6216\u5176\u4ed6\u624b\u6bb5\u6765\u4f20\u8fbe\u6307\u4ee4\uff0c\u5982\u679c\u6307\u4ee4\u88ab\u5bf9\u65b9\u7834\u89e3\uff0c\u90a3\u5c31\u76f8\u5f53\u4e8e\u4e00\u4e3e\u4e00\u52a8\u90fd\u66b4\u9732\u5728\u5bf9\u65b9\u773c\u524d\uff0c\u7ed3\u679c\u81ea\u7136\u4e0d\u8a00\u800c\u55bb\u3002\u56de\u5230 IT \u9886\u57df\uff0c\u5728 Web \u5e94\u7528\u5f00\u53d1\u4e2d\uff0c\u5f53\u6d89\u53ca\u5230\u5b89\u5168\u65f6\uff0c\u4f1a\u9891\u7e41\u5730\u9047\u5230\u5bc6\u7801\u6280\u672f\u76f8\u5173\u7684\u6982\u5ff5\uff0c\u6709\u5fc5\u8981\u5bf9\u5176\u8fdb\u884c\u4e00\u4e2a\u68b3\u7406\uff0c\u5efa\u7acb\u4e00\u4e2a\u5927\u4f53\u5730\u7cfb\u7edf\u5316\u8ba4\u8bc6\u3002<\/p>\n\n\n\n<p>\u5bc6\u7801\u6280\u672f\u7684\u76ee\u6807\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2460 <strong>\u63d0\u4f9b\u8eab\u4efd\u8ba4\u8bc1<\/strong>\uff1b<\/li>\n\n\n\n<li>\u2461 <strong>\u63d0\u4f9b\u673a\u5bc6\u6027\u4fdd\u969c<\/strong>\uff1b<\/li>\n\n\n\n<li>\u2462 <strong>\u63d0\u4f9b\u5b8c\u6574\u6027\u4fdd\u969c<\/strong>\uff1b<\/li>\n\n\n\n<li>\u2463 <strong>\u63d0\u4f9b\u4e0d\u53ef\u5426\u8ba4\u6027\u4fdd\u969c<\/strong>\uff1b<\/li>\n<\/ul>\n\n\n\n<p>\u4e3a\u4e86\u5b9e\u73b0\u4e0a\u8ff0\u76ee\u6807\uff0c\u6700\u57fa\u672c\u7684\u5de5\u5177\u6709 6 \u79cd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bf9\u79f0\u52a0\u5bc6<\/strong>\uff0c\u63d0\u4f9b \u2461\uff1b<\/li>\n\n\n\n<li><strong>\u975e\u5bf9\u79f0\u52a0\u5bc6<\/strong>\uff0c\u63d0\u4f9b \u2461\uff1b<\/li>\n\n\n\n<li><strong>\u5355\u5411\u6563\u5217<\/strong>\uff0c\u63d0\u4f9b \u2462\uff1b<\/li>\n\n\n\n<li><strong>\u6d88\u606f\u8ba4\u8bc1\u7801<\/strong>\uff0c\u63d0\u4f9b \u2460\u2462\uff1b<\/li>\n\n\n\n<li><strong>\u6570\u5b57\u7b7e\u540d<\/strong>\uff0c\u63d0\u4f9b \u2460\u2462\u2463\uff1b<\/li>\n\n\n\n<li><strong>\u4f2a\u968f\u673a\u6570\u751f\u6210\u5668<\/strong>\uff0c\u4e0d\u53ef\u6216\u7f3a\u7684\u8981\u7d20\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u672c\u7bc7\u5148\u6765\u770b\u770b\u5bf9\u79f0\u52a0\u5bc6\u3002<\/p>\n\n\n\n<p>\u4f17\u6240\u5468\u77e5\uff0c\u8ba1\u7b97\u673a\u867d\u7136\u795e\u901a\u5e7f\u5927\uff0c\u4f46\u5b9e\u9645\u53ea\u8ba4\u8bc6 0\/1\uff0c\u79f0\u4e3a\u4e8c\u8fdb\u5236\u3002\u6bcf\u4e00\u4e2a\u88ab\u5b58\u653e\u7684 0\/1 \u79f0\u4e3a\u4e00\u4e2a\u6bd4\u7279\u4f4d\uff0c\u4efb\u4f55\u5b57\u7b26\u5728\u8ba1\u7b97\u673a\u91cc\u90fd\u662f\u901a\u8fc7\u4e00\u8fde\u4e32\u7684\u6bd4\u7279\u4f4d\u6765\u8868\u793a\u5e76\u5b58\u653e\uff0c\u8fd9\u5c31\u662f\u5b57\u7b26\u7f16\u7801\u3002\u6700\u65e9\u7684\u7f16\u7801\u6807\u51c6\u4e3a\u6807\u51c6 ASCII \u7f16\u7801\uff0c\u4f7f\u7528 8 \u4e2a\u6bd4\u7279\u4f4d\u7684 0\/1 \u7ec4\u5408\u6765\u8868\u793a\u5b57\u7b26\uff08\u9996\u4f4d\u4e3a 0\uff09\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u4ece\u8ba1\u7b97\u673a\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u6240\u6709\u7531\u5b57\u7b26\u7ec4\u6210\u7684\u4fe1\u606f\u90fd\u662f\u4e00\u4e32\u6bd4\u7279\u4f4d\uff0c\u56e0\u6b64\u7528\u8ba1\u7b97\u673a\u5b9e\u73b0\u7684<strong>\u52a0\u5bc6\u5c31\u662f\u5c06\u660e\u6587\u7684\u6bd4\u7279\u5e8f\u5217\u66ff\u6362\u4e3a\u5bc6\u6587\u7684\u6bd4\u7279\u5e8f\u5217\uff0c\u89e3\u5bc6\u5219\u76f8\u53cd<\/strong>\u3002<\/p>\n\n\n\n<p>\u663e\u7136\u52a0\u89e3\u5bc6\u5c31\u662f\u5bf9\u6bd4\u7279\u4f4d\u8fdb\u884c\u8fd0\u7b97\uff0c\u79f0\u4e3a\u6bd4\u7279\u8fd0\u7b97\u3002\u6bd4\u7279\u8fd0\u7b97\u548c\u903b\u8f91\u8fd0\u7b97\u4e00\u6837\uff0c\u90fd\u662f\u5728\u4e8c\u503c\u4e4b\u95f4\u8fdb\u884c\u53d8\u6362\uff0c\u5728\u52a0\u5bc6\u4e2d\u5e38\u7528\u7684\u6bd4\u7279\u8fd0\u7b97\u662f<strong>\u5f02\u6216\uff08XOR\uff09<\/strong>\u8fd0\u7b97 \u2014\u2014 \u76f8\u540c\u5f97 0\uff0c\u76f8\u5f02\u5f97 1\u3002\u5f53\u6bd4\u7279\u4f4d\u4ece 0 \u53d8\u4e3a 1 \u6216\u8005\u4ece 1 \u53d8\u4e3a 0\uff0c\u79f0\u4e3a\u6bd4\u7279\u7ffb\u8f6c\u3002<\/p>\n\n\n\n<p>\u5728\u76ee\u524d\u7684\u52a0\u5bc6\u7b97\u6cd5\u4e2d\u6709\u4e00\u4e2a\u8981\u7d20\u53eb\u5bc6\u94a5\uff0c\u5728\u5bf9\u79f0\u52a0\u5bc6\u4e2d\uff0c\u52a0\u5bc6\u548c\u89e3\u5bc6\u4f7f\u7528\u540c\u4e00\u628a\u5bc6\u94a5\u3002\u5bc6\u94a5\u662f\u4e00\u4e2a\u6bd4\u7279\u4f4d\u6570\u5f88\u591a\uff08\u4f7f\u5f97\u5305\u542b\u6240\u6709\u6bd4\u7279\u7ec4\u5408\u7684\u5bc6\u94a5\u7a7a\u95f4\u8db3\u591f\u5927\uff0c\u589e\u52a0\u7834\u89e3\u7684\u96be\u5ea6\uff09\u7684\u968f\u673a\u6570\u5b57\uff0c\u901a\u5e38\u7528 16 \u8fdb\u5236\u5f62\u5f0f\u8868\u793a\uff0c\u4f7f\u7528\u5bc6\u94a5\u7684\u6bd4\u7279\u5e8f\u5217<strong>\u4e0e\u52a0\u5bc6\u7b97\u6cd5\u67d0\u4e00\u9636\u6bb5\u751f\u6210\u7684\u6bd4\u7279\u5e8f\u5217\u505a\u5f02\u6216<\/strong>\uff0c\u518d\u7ecf\u82e5\u5e72\u8f6e\u5904\u7406\u5f97\u5230\u5bc6\u6587\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c<strong>\u6700\u76f4\u89c2\u7684\u52a0\u5bc6\u65b9\u5f0f\u5c31\u662f\u4e00\u4e2a\u5bc6\u94a5\u76f4\u63a5\u4e0e\u660e\u6587\u505a\u5f02\u6216<\/strong>\uff0c\u5982\u679c\u5bc6\u94a5\uff08\u771f\u968f\u673a\u6570\uff09\u957f\u5ea6\u548c\u660e\u6587\u957f\u5ea6\u4e00\u81f4\uff0c\u5c31\u79f0\u4e3a\u4e00\u6b21\u6027\u5bc6\u7801\u672c\uff0c\u4e00\u6b21\u6027\u5bc6\u7801\u672c\u662f\u6700\u5f3a\u7684\u52a0\u5bc6\u65b9\u5f0f\u2014\u2014\u7531\u9999\u519c\u7528\u6570\u5b66\u8bc1\u660e\u5176\u65e0\u6cd5\u88ab\u7834\u8bd1\u3002\u4f46\u4e00\u6b21\u6027\u5bc6\u7801\u672c\u5e76\u4e0d\u5b9e\u7528\uff0c\u56e0\u4e3a\u5bc6\u94a5\u914d\u9001\u3001\u4fdd\u5b58\u3001\u91cd\u7528\u90fd\u5b58\u5728\u9ebb\u70e6\uff0c\u4e14\u5bc6\u94a5\u9700\u8981\u4e0e\u660e\u6587\u957f\u5ea6\u4e00\u81f4\uff0c\u5982\u679c\u660e\u6587\u6709100M\uff0c\u5bc6\u94a5\u4e5f\u9700\u8981\u6709100M\uff0c\u53ea\u6709\u7279\u522b\u654f\u611f\u7684\u573a\u666f\u624d\u53ef\u4ee5\u4e0d\u8ba1\u6210\u672c\u5730\u91c7\u7528\u8fd9\u79cd\u7406\u8bba\u4e0a\u7edd\u5bf9\u5b89\u5168\u7684\u52a0\u5bc6\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p>\u76ee\u524d\u5e38\u7528\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>DES<\/strong>\uff08<strong>D<\/strong>ata <strong>E<\/strong>ncryption <strong>S<\/strong>tandard\uff09\uff0c\u662f 1977 \u5e74\u7f8e\u56fd\u8054\u90a6\u4fe1\u606f\u5904\u7406\u6807\u51c6\uff08FIPS\uff09\u4e2d\u91c7\u7528\u7684\u4e00\u79cd\u5bc6\u7801\uff0c\u5bc6\u94a5\u957f\u5ea6\u4e3a 64 \u6bd4\u7279\uff08\u5176\u4e2d\u6bcf\u9694 7 \u6bd4\u7279\u4f1a\u8bbe\u7f6e\u4e00\u4e2a\u9519\u8bef\u68c0\u67e5\u6bd4\u7279\uff09\uff0c\u5df2\u7ecf\u53ef\u4ee5\u5728\u77ed\u65f6\u95f4\u5185\u7834\u89e3\uff0c\u6240\u4ee5<strong>\u4e0d\u63a8\u8350\u4f7f\u7528<\/strong>\uff1b<\/li>\n\n\n\n<li><strong>3DES<\/strong>\uff0cDES \u7684\u52a0\u5f3a\u7248\uff0c\u9700\u8981\u4e09\u4e2a DES \u5bc6\u94a5\uff0c\u6267\u884c\u8fc7\u7a0b\u4e3a <strong>\u2460<\/strong> <strong>DES \u52a0\u5bc6\u2192 \u2461 DES \u89e3\u5bc6\u2192 \u2462 DES \u52a0\u5bc6<\/strong>\uff0c\u4e09\u4e2a\u5bc6\u94a5\u5206\u522b\u7528\u4e8e\u4e09\u4e2a\u6b65\u9aa4\u4e2d\uff0c\u5982\u679c\u4e09\u4e2a\u5bc6\u94a5\u76f8\u540c\u5219\u7b49\u4ef7\u4e8e\u666e\u901a DES \u52a0\u5bc6\uff0c\u5982\u679c \u2460\u2462 \u76f8\u540c\u5c31\u79f0\u4e3a DES-EDE2\uff0c\u5982\u679c\u4e09\u4e2a\u5bc6\u94a5\u90fd\u4e0d\u540c\u5c31\u79f0\u4e3a DES-EDE3\uff1b<\/li>\n\n\n\n<li><strong>AES<\/strong>\uff08<strong>A<\/strong>dvanced <strong>E<\/strong>ncryption <strong>S<\/strong>tandard\uff09\uff0c\u7531\u7f8e\u56fd\u6807\u51c6\u5316\u7ec4\u7ec7 NIST \u7ec4\u7ec7\u7684\u7b97\u6cd5\u9009\u62d4\u6d3b\u52a8\u7684\u4ea7\u7269\uff0c\u8be5\u6d3b\u52a8\u9762\u5411\u5168\u4e16\u754c\u7684\u5bc6\u7801\u5b66\u5bb6\uff0c\u53c2\u4e0e\u9009\u62d4\u7684\u7b97\u6cd5\u4e00\u65e6\u88ab\u5bc6\u7801\u5b66\u5bb6\u627e\u5230\u5f31\u70b9\u5c31\u76f4\u63a5\u6dd8\u6c70\uff0c\u6700\u7ec8\u80dc\u51fa\u7684\u7b97\u6cd5\u4e3a <strong>Rijndael<\/strong>\uff0c\u7b97\u6cd5\u7528\u5230\u7684\u5bc6\u94a5\u957f\u5ea6\u53ef\u4ee5\u6709 128\/192\/256 \u4e09\u79cd\u9009\u62e9\uff0cAES \u7684\u5b89\u5168\u6027\u5f88\u9ad8\uff0c\u6240\u4ee5\u76ee\u524d<strong>\u63a8\u8350\u4f7f\u7528<\/strong>\uff1b<\/li>\n\n\n\n<li><strong>SM1\/SM4\/SM7\/ZUC<\/strong>\uff0c\u5546\u5bc6\u6807\u51c6\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5bc6\u94a5\u957f\u5ea6\u4e3a 128 \u6bd4\u7279\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e0a\u9762\u4ecb\u7ecd\u7684 DES\/3DES\/AES\/SM1\/SM4\/SM7 \u90fd\u662f<strong>\u5206\u7ec4\u52a0\u5bc6<\/strong>\u7b97\u6cd5\uff0c\u6240\u8c13\u5206\u7ec4\u52a0\u5bc6\u662f\u6307\u5bf9\u8d85\u8fc7\u5bc6\u94a5\u957f\u5ea6\u7684\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\u65f6\uff0c\u4e00\u6b21\u53ea\u80fd\u52a0\u5bc6\u4e00\u4e2a\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\uff0c\u8fd9\u6837\u5c31\u9700\u8981\u5c06\u6570\u636e\u5207\u5206\u4e3a\u82e5\u5e72\u7ec4\uff0c\u4f7f\u7528\u540c\u4e00\u4e2a\u5bc6\u94a5\uff0c\u4e00\u7ec4\u4e00\u7ec4\u5730\u8fed\u4ee3\u8fdb\u884c\u52a0\u5bc6\uff0c\u8fed\u4ee3\u7684\u65b9\u5f0f\u79f0\u4e3a\u6a21\u5f0f\uff0c\u4e3b\u8981\u6709 ECB\/CBC\/CFB\/OFB\/CTR 5 \u79cd\u3002\u9664\u4e86\u5206\u7ec4\u52a0\u5bc6\u7b97\u6cd5\uff0c\u53e6\u4e00\u79cd\u4f7f\u7528\u573a\u666f\u6bd4\u8f83\u5c11\u7684\u7b97\u6cd5\u7c7b\u578b\u53eb<strong>\u6d41\u5f0f\u52a0\u5bc6<\/strong>\u7b97\u6cd5\uff0c\u6d41\u5f0f\u52a0\u5bc6\u7b97\u6cd5\u4f7f\u7528\u4e00\u4e2a\u5bc6\u94a5\u6d41\u6765\u8fdb\u884c\u52a0\u5bc6\uff0cRC4\u3001ZUC \u5c31\u662f\u6d41\u5f0f\u52a0\u5bc6\u7b97\u6cd5\u3002 <\/p>\n\n\n\n<p><strong>ECB<\/strong>\uff08Electronic CodeBook\uff09<\/p>\n\n\n\n<p>ECB \u6a21\u5f0f\u76f4\u63a5\u5c06\u660e\u6587\u6309\u5206\u7ec4\u957f\u5ea6\u5207\u5206\u4e3a\u4e00\u4e2a\u4e2a\u72ec\u7acb\u7684\u5206\u7ec4\uff0c\u5bf9\u6bcf\u4e2a\u5206\u7ec4\u6267\u884c\u4e00\u6837\u7684\u52a0\u5bc6\u64cd\u4f5c\u3002\u8fd9\u79cd\u6a21\u5f0f\u5bb9\u6613\u88ab\u653b\u51fb\uff0c\u5982\u7b80\u5355\u4ea4\u6362\u5bc6\u6587\u5206\u7ec4 1 \u548c 2 \u7684\u987a\u5e8f\u5c31\u6709\u53ef\u80fd\u6784\u9020\u51fa\u5408\u6cd5\u7684\u5e26\u7834\u574f\u6027\u7684\u4fe1\u606f\uff0c\u6240\u4ee5<strong>\u4e0d\u63a8\u8350<\/strong>\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"627\" height=\"322\" src=\"https:\/\/www.chenqing.work\/wp-content\/uploads\/2022\/12\/image-1.png\" alt=\"\" class=\"wp-image-6546\"\/><figcaption class=\"wp-element-caption\"><sup>\u56fe\u4e2d\u7684\u3010\u52a0\u5bc6\u3011\u7701\u7565\u4e86\u5bc6\u94a5\u548c\u5177\u4f53\u7684\u52a0\u5bc6\u6b65\u9aa4<\/sup><\/figcaption><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>CBC<\/strong>\uff08Cipher Block Chaining\uff09<\/p>\n\n\n\n<p>CBC \u6a21\u5f0f\u7684\u6bcf\u4e2a\u5bc6\u6587\u5206\u7ec4\u4e0d\u518d\u662f\u72ec\u7acb\u7684\uff0c\u56e0\u6b64\u901a\u8fc7\u4ea4\u6362\u5bc6\u6587\u5206\u7ec4\u4f4d\u7f6e\u7684\u653b\u51fb\u65b9\u5f0f\u4e0d\u518d\u6709\u6548\u3002\u56e0\u4e3a\u6bcf\u4e00\u6b21\u5206\u7ec4\u5728\u5904\u7406\u65f6\u9700\u8981\u7528\u5230\u524d\u4e00\u4e2a\u5bc6\u6587\u5206\u7ec4\uff0c\u6240\u4ee5\u5728\u5904\u7406\u7b2c\u4e00\u4e2a\u660e\u6587\u5206\u7ec4\u4e4b\u524d\u52a0\u4e86\u4e00\u4e2a\u521d\u59cb\u5411\u91cf IV\u3002CBC \u7684\u7f3a\u70b9\u662f\u5982\u679c\u4e2d\u95f4\u67d0\u4e2a\u6bd4\u7279\u4e22\u5931\uff0c\u5c06\u5bfc\u81f4\u540e\u7eed\u7684\u5bc6\u6587\u5206\u7ec4\u65e0\u6cd5\u89e3\u5bc6\u3002\u4ece\u5b89\u5168\u6027\u6765\u8bf4<strong>\u63a8\u8350\u4f7f\u7528<\/strong>\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"292\" src=\"https:\/\/www.chenqing.work\/wp-content\/uploads\/2022\/12\/image-3.png\" alt=\"\" class=\"wp-image-6556\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>CFB<\/strong>\uff08Cipher FeedBack\uff09<\/p>\n\n\n\n<p>\u5c06\u660e\u6587\u5206\u7ec4\u4e0e\u5bc6\u7801\u7b97\u6cd5\u7684\u8f93\u51fa\u505a\u5f02\u6216\u6765\u5f97\u5230\u5bc6\u6587\uff0c\u4ece\u5168\u5c40\u6765\u770b\uff0c\u5c31\u662f\u660e\u6587\u548c\u4e00\u4e32\u5bc6\u94a5\u6d41\u505a\u5f02\u6216\uff0c\u7ed3\u6784\u7c7b\u4f3c\u4e8e\u4e00\u6b21\u6027\u5bc6\u7801\u672c\u52a0\u5bc6\uff0c\u53ea\u662f\u5bc6\u94a5\u6d41\u4e0d\u662f\u771f\u968f\u673a\u6570\u3002CFB \u6a21\u5f0f\u4e0b\u53ef\u4ee5\u9010\u6bd4\u7279\u52a0\u5bc6\uff0c\u56e0\u6b64\u53ef\u4ee5\u8bf4\u662f\u7528\u5206\u7ec4\u5bc6\u7801\u65b9\u5f0f\u5b9e\u73b0\u4e86\u6d41\u5bc6\u7801\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"918\" height=\"375\" src=\"https:\/\/www.chenqing.work\/wp-content\/uploads\/2022\/12\/image-4.png\" alt=\"\" class=\"wp-image-6564\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>OFB<\/strong>\uff08Output-Feedback\uff09<\/p>\n\n\n\n<p>\u548c CFB \u7c7b\u4f3c\uff0c\u4e5f\u662f\u4f7f\u7528\u5bc6\u7801\u7b97\u6cd5\u751f\u6210\u7684\u5bc6\u94a5\u6d41\u6765\u548c\u660e\u6587\u5206\u7ec4\u5f02\u6216\uff0c\u533a\u522b\u662f\u5bc6\u94a5\u6d41\u7684\u751f\u6210\u548c\u5bc6\u6587\u5206\u7ec4\u6ca1\u6709\u5173\u8054\uff0c\u8fd9\u4f7f\u5f97\u751f\u6210\u5bc6\u94a5\u6d41\u548c\u52a0\u5bc6\u4e24\u4e2a\u64cd\u4f5c\u53ef\u4ee5\u5e76\u884c\uff0c\u5bc6\u94a5\u6d41\u5b9e\u9645\u4e0a\u4e5f\u53ef\u4ee5\u63d0\u524d\u751f\u6210\u597d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"948\" height=\"516\" src=\"https:\/\/www.chenqing.work\/wp-content\/uploads\/2022\/12\/image-5.png\" alt=\"\" class=\"wp-image-6565\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>CTR<\/strong>\uff08Counter\uff09<\/p>\n\n\n\n<p>\u548c OFB \u7c7b\u4f3c\uff0c\u91c7\u7528\u4e00\u4e2a\u9010\u6b21\u7d2f\u52a0\u7684\u8ba1\u6570\u5668\u6765\u751f\u6210\u5bc6\u94a5\u6d41\uff0c\u751f\u6210\u5bc6\u94a5\u6d41\u548c\u52a0\u5bc6\u4e24\u4e2a\u64cd\u4f5c\u4e5f\u53ef\u4ee5\u5e76\u884c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"788\" height=\"631\" src=\"https:\/\/www.chenqing.work\/wp-content\/uploads\/2022\/12\/image-6.png\" alt=\"\" class=\"wp-image-6566\"\/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u53c2\u8003\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u300a\u56fe\u89e3\u5bc6\u7801\u6280\u672f\u300b<\/li>\n\n\n\n<li><a href=\"https:\/\/stackoverflow.com\/questions\/1220751\/how-to-choose-an-aes-encryption-mode-cbc-ecb-ctr-ocb-cfb\" data-type=\"URL\" data-id=\"https:\/\/stackoverflow.com\/questions\/1220751\/how-to-choose-an-aes-encryption-mode-cbc-ecb-ctr-ocb-cfb\">how-to-choose-an-aes-encryption-mode-cbc-ecb-ctr-ocb-cfb<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u4eba\u7c7b\u6700\u8f83\u771f\u3001\u6280\u827a\u6700\u7cbe\u6e5b\u7684\u4e8b\u4e1a\u662f\u519b\u4e8b\uff0c\u5bc6\u7801\u6280\u672f\u6700\u5927\u653e\u5f02\u5f69\u7684\u5730\u65b9\u4e5f\u5728\u519b\u4e8b\uff0c\u6218\u4e89\u4e2d\u9700\u8981\u901a\u8fc7\u65e0\u7ebf\u7535\u6216\u5176\u4ed6\u624b\u6bb5 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,2],"tags":[129,126,127],"class_list":["post-6176","post","type-post","status-publish","format-standard","hentry","category-code","category-2","tag-129","tag-126","tag-127"],"_links":{"self":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts\/6176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6176"}],"version-history":[{"count":211,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts\/6176\/revisions"}],"predecessor-version":[{"id":7007,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts\/6176\/revisions\/7007"}],"wp:attachment":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}