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margin-bottom: 20px; margin-top: 20px;\"><strong>\u73b0\u4ee3\u4eba\u66f4\u79d1\u5b66\u7684\u52a0\u5bc6\u7b97\u6cd5<\/strong><\/div>\n<p>\u53e4\u5178\u52a0\u5bc6\u7b97\u6cd5\u672c\u8d28\u4e0a\u662f\u8bed\u8a00\u5b66\u4e0a\u6a21\u5f0f\u7684\u6539\u53d8\u3002\u76f4\u523020\u4e16\u7eaa\u4e2d\u53f6\uff0c\u9999\u519c\u53d1\u8868\u4e86\u300a\u79d8\u5bc6\u4f53\u5236\u7684\u901a\u4fe1\u7406\u8bba\u300b\u4e00\u6587\uff0c\u6807\u5fd7\u7740\u52a0\u5bc6\u7b97\u6cd5\u7684\u91cd\u5fc3\u8f6c\u79fb\u5f80\u5e94\u7528\u6570\u5b66\u4e0a\u7684\u8f6c\u79fb\u3002\u4e8e\u662f\uff0c\u9010\u6e10\u884d\u751f\u51fa\u4e86\u5f53\u4eca\u91cd\u8981\u7684\u4e09\u7c7b\u52a0\u5bc6\u7b97\u6cd5\uff1a\u975e\u5bf9\u79f0\u52a0\u5bc6\u3001\u5bf9\u79f0\u52a0\u5bc6\u4ee5\u53ca\u54c8\u5e0c\u7b97\u6cd5\u3002\u8fd9\u4e09\u7c7b\u7b97\u6cd5\u5f80\u5f80\u7ec4\u5408\u4f7f\u7528\uff0c\u4ee5\u53d1\u6325\u6700\u4f73\u6548\u679c\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"margin-top: 2em; margin-bottom: 1em;\"><span style=\"color: #1e1e1e; letter-spacing: 2px; border-left: #FF3030 3px solid; border-right: #FF3030 3px solid; padding-left: 8px; padding-right: 8px; font-size: 12pt;\"><strong>1\u3001\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5<\/strong><\/span><\/div>\n<p>\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u662f\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u52a0\u5bc6\u7b97\u6cd5\u4e4b\u4e00\u3002\u5e38\u7528\u7684\u6709 DES \u7b97\u6cd5\u3001AES \u7b97\u6cd5\u30013DES \u7b97\u6cd5\u3001TDEA \u7b97\u6cd5\u3001Blowfish \u7b97\u6cd5\u3001RC5 \u7b97\u6cd5\u3001IDEA \u7b97\u6cd5\u7b49\u3002\u5176\u7279\u70b9\u662f\uff0c\u52a0\u5bc6\u548c\u89e3\u5bc6\u4e24\u65b9\u4f7f\u7528\u540c\u4e00\u5bc6\u94a5\u8fdb\u884c\u52a0\u3001\u89e3\u5bc6\u3002\u6309\u7167\u539f\u7406\u4e0d\u540c\uff0c\u5bf9\u79f0\u52a0\u5bc6\u53ef\u4ee5\u5927\u4f53\u5206\u6210\u6d41\u52a0\u5bc6\u548c\u5206\u7ec4\u52a0\u5bc6\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n<p>\u6d41\u52a0\u5bc6<br \/>\n\u6d41\u52a0\u5bc6\u662f\u5c06\u660e\u6587\u6309\u5b57\u7b26\u9010\u4f4d\u5730\uff0c\u5bf9\u5e94\u5730\u8fdb\u884c\u52a0\u5bc6\u7684\u4e00\u7c7b\u5bf9\u79f0\u5bc6\u7801\u7b97\u6cd5\u3002\u660e\u6587\u548c\u5bc6\u94a5\u6309\u4f4d\u5bf9\u5176\u505a\u7ea6\u5b9a\u7684\u8fd0\u7b97\uff0c\u5373\u53ef\u83b7\u5f97\u5bc6\u6587\u3002\u6d41\u52a0\u5bc6\u4e2d\u4ee5 RC4 \u548c GSM \u4e24\u79cd\u7b97\u6cd5\u6700\u6709\u540d\uff0c\u6700\u7b80\u5355\u7684\u6a21\u578b\u662f\u5f02\u6216\u6d41\u52a0\u5bc6\u4f8b\uff0c\u5982\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-84066 aligncenter\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/2.jpg\" alt=\"\" width=\"605\" height=\"85\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/2.jpg 605w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/2-300x42.jpg 300w\" sizes=\"auto, (max-width: 605px) 100vw, 605px\" 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\u8f6e\u8fd0\u7b97\uff0c\u5176\u4ee3\u8868\u7b97\u6cd5\u6709 DES \u548c AES\u3002\u76ee\u524d\u63a8\u8350\u4f7f\u7528 AES\uff0cDES\u5df2\u7ecf\u4e0d\u518d\u5b89\u5168\u3002<\/p>\n<p>DES<\/p>\n<p>DES \u662f\u8f83\u65e9\u65f6\u671f\u7684\u5bf9\u79f0\u52a0\u5bc6\u6807\u51c6\uff0c\u6838\u5fc3\u4e3b\u8981\u5206\u6210\u521d\u59cb\u7f6e\u6362\u3001\u8f6e\u51fd\u6570\u3001\u9006\u7f6e\u6362\u4e09\u6b65\uff0c\u5728\u5f53\u65f6\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u968f\u7740\u8ba1\u7b97\u673a\u6027\u80fd\u5730\u4e0d\u65ad\u63d0\u9ad8\uff0c\u66b4\u529b\u7834\u89e3DES\u53d8\u5f97\u8d8a\u6765\u8d8a\u5bb9\u6613\u3002\u6240\u4ee5 DES \u5df2\u7ecf\u4e0d\u518d\u5b89\u5168\uff0c\u8fd1\u5341\u51e0\u5e74\u9010\u6e10\u5730\u88ab 3DES \u548c AES \u4ee3\u66ff\u3002<\/p>\n<p>AES<\/p>\n<p>AES \u5df2\u7ecf\u88ab\u591a\u65b9\u5206\u6790\u8bba\u8bc1\uff0c\u5728\u5168\u4e16\u754c\u8303\u56f4\u5e7f\u6cdb\u4f7f\u7528\uff0c\u662f\u76ee\u524d\u6700\u4e3a\u5b89\u5168\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u4e4b\u4e00\u3002\u8fd1\u5341\u5e74\uff0cAES \u5df2\u7136\u6210\u4e3a\u5bf9\u79f0\u5bc6\u94a5\u52a0\u5bc6\u4e2d\u6700\u6d41\u884c\u7684\u7b97\u6cd5\u4e4b\u4e00\u3002\u4e0d\u540c\u4e8e DES\uff0cAES \u4f7f\u7528\u7684\u662f\u4ee3\u6362-\u7f6e\u6362\u7f51\u7edc\uff0c\u800c\u975e Feistel \u67b6\u6784\u3002<\/p>\n<p>\u5927\u591a\u6570 AES \u8ba1\u7b97\u662f\u5728\u4e00\u4e2a\u7279\u522b\u7684\u6709\u9650\u57df\u5185\u5b8c\u6210\u7684\uff0c\u52a0\u5bc6\u8fc7\u7a0b\u662f\u5728\u4e00\u4e2a 4\u00d74 \u7684\u5b57\u8282\u77e9\u9635\u4e0a\u8fd0\u4f5c\uff0c\u8fd9\u4e2a\u77e9\u9635\u53c8\u79f0\u4e3a\u201c\u72b6\u6001state\u201d\uff0c\u5176\u521d\u503c\u5c31\u662f\u4e00\u4e2a\u660e\u6587\u533a\u5757\u3002\u52a0\u5bc6\u65f6\uff0c\u5404\u8f6e AES \u52a0\u5bc6\u5faa\u73af\uff08\u9664\u6700\u540e\u4e00\u8f6e\u5916\uff09\u5747\u5305\u542b 4 \u4e2a\u6b65\u9aa4\uff1a<\/p>\n<p>AddRoundKey\u2014\u2014\u77e9\u9635\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u8282\u90fd\u4e0e\u8be5\u6b21\u8f6e\u5bc6\u94a5round key\u505a XOR \u8fd0\u7b97\uff1b\u6bcf\u4e2a\u5b50\u5bc6\u94a5\u7531\u5bc6\u94a5\u751f\u6210\u65b9\u6848\u4ea7\u751f\u3002<\/p>\n<p>SubBytes\u2014\u2014\u901a\u8fc7\u4e00\u4e2a\u975e\u7ebf\u6027\u66ff\u6362\u51fd\u6570\uff0c\u7528\u67e5\u627e\u8868\u65b9\u5f0f\u628a\u6bcf\u4e2a\u5b57\u8282\u66ff\u6362\u6210\u5bf9\u5e94\u5b57\u8282\u3002<\/p>\n<p>ShiftRows\u2014\u2014\u5c06\u77e9\u9635\u6bcf\u4e2a\u6a2a\u5217\u8fdb\u884c\u5faa\u73af\u5f0f\u79fb\u4f4d\u3002<\/p>\n<p>MixColumns\u2014\u2014\u5145\u5206\u6df7\u5408\u77e9\u9635\u4e2d\u5404\u4e2a\u76f4\u884c\u7684\u64cd\u4f5c\uff0c\u4f7f\u7528\u7ebf\u6027\u8f6c\u6362\u6765\u6df7\u5408\u6bcf\u5217\u7684\u56db\u4e2a\u5b57\u8282\u3002\u6700\u540e\u4e00\u4e2a\u52a0\u5bc6\u5faa\u73af\u4e2d\u7701\u7565 MixColumns \u6b65\u9aa4\uff0c\u4ee5\u53e6\u4e00\u4e2a ddRoundKey \u53d6\u4ee3\u3002<\/p>\n<p>\u52a0\u5bc6\u6a21\u5f0f<\/p>\n<p>AES\u3001DES \u5185\u90e8\u90fd\u652f\u6301\u4e0d\u540c\u52a0\u5bc6\u6a21\u5f0f\uff0c\u6bcf\u79cd\u6a21\u5f0f\u7684\u5b89\u5168\u6027\u548c\u6548\u7387\u5927\u4e0d\u76f8\u540c\u3002\u4e24\u79cd\u6700\u5e38\u89c1\u6a21\u5f0f ECB \u548c CBC \u4e2d\uff0cECB \u6a21\u5f0f\u52a0\u5bc6\u6548\u7387\u9ad8\uff0c\u4f46\u5b89\u5168\u6027\u4f4e\uff0c\u6a21\u5f0f\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-84067 aligncenter\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/3-1.jpg\" alt=\"\" width=\"574\" height=\"177\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/3-1.jpg 574w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/3-1-300x93.jpg 300w\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/p>\n<p>\u6bcf\u6b21\u90fd\u662f Key \u5bf9\u5355\u72ec\u5757\u8fdb\u884c\u52a0\u5bc6\uff0c\u5bb9\u6613\u88ab\u5bf9\u65b9\u7834\u89e3\u3002\u4f46\u7531\u4e8e\u6bcf\u4e2a\u6a21\u5757\u4e4b\u95f4\u6beb\u65e0\u5173\u8054\uff0c\u53ef\u4ee5\u5e76\u53d1\u8fd0\u7b97\uff0c\u6781\u5927\u63d0\u9ad8\u52a0\u5bc6\u6548\u7387\u3002\u901a\u5e38\uff0cECB \u7684\u52a0\u5bc6\u6548\u7387\u6bd4 CBC \u9ad8 5-6 \u500d\u3002\u4f46 CBC \u8f83\u4e4b ECB \u9ad8\uff0c\u5b89\u5168\u6027\u5219\u9ad8\u5f97\u591a\u3002\u6a21\u5f0f\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-84068 aligncenter\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/4.jpg\" alt=\"\" width=\"557\" height=\"213\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/4.jpg 557w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2017\/09\/4-300x115.jpg 300w\" sizes=\"auto, (max-width: 557px) 100vw, 557px\" \/><\/p>\n<p>\u6bcf\u5757\u52a0\u5bc6\u5f15\u5165\u4e00\u4e2a\u4e0d\u540c\u7684 IV\uff0c\u9700\u8981\u4e0a\u4e00\u5757\u8fdb\u884c\u8fed\u4ee3\uff0c\u6700\u7ec8\u5b8c\u6210\u6574\u4e2a\u52a0\u5bc6\u8fc7\u7a0b\u3002\u7531\u4e8e\u6bcf\u5757\u7684 IV \u548c\u5bc6\u6587\u5757\u6709\u5173\uff0c\u6240\u4ee5\u65e0\u6cd5\u91c7\u7528\u5e76\u53d1\u6a21\u5f0f\uff0c\u5fc5\u987b\u4e32\u884c\u6574\u4e2a\u8fc7\u7a0b\u3002\u82e5\u4e0d\u662f\u51fa\u4e8e\u6781\u9ad8\u7684\u6027\u80fd\u8981\u6c42\uff0c\u5efa\u8bae\u91c7\u7528\u66f4\u5b89\u5168\u3001\u53ef\u9760\u7684 CBC \u6a21\u5f0f\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"margin-top: 2em; margin-bottom: 1em;\"><span style=\"color: #1e1e1e; letter-spacing: 2px; border-left: #FF3030 3px solid; border-right: #FF3030 3px solid; padding-left: 8px; padding-right: 8px; font-size: 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rel=\"noopener\">https:\/\/mp.weixin.qq.com\/s\/i0tlrtPJvMHd339K5lIk2w<\/a><\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/lrxjmw.cn\/encryption-algorithm.html\" target=\"_blank\" rel=\"noopener\"> http:\/\/lrxjmw.cn\/encryption-algorithm.html<\/a><span style=\"float: right;\">\u7f16\u8f91\uff1a\u90d1\u5e05\uff0c\u5ba1\u6838\u5458\uff1a\u9004\u589e\u5b9d<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u5bfc\u8bfb \u4f5c\u4e3a\u4e00\u79cd\u5b89\u5168\u624b\u6bb5\uff0c\u52a0\u5bc6\u7b97\u6cd5\u548c\u6211\u4eec\u5927\u591a\u6570\u4eba\u7684\u751f\u6d3b\u53d1\u751f\u7740\u7d27\u5bc6\u8054\u7cfb\u3002\u53ea\u8981\u4f60\u4e0a\u7f51\uff0c\u90fd\u4f1a\u4ece\u4e2d\u53d7\u76ca\uff0c\u56e0\u4e3a\u51e1\u662f\u4f7f\u7528 h [&hellip;]<\/p>\n","protected":false},"author":63,"featured_media":84069,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-84063","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/84063","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=84063"}],"version-history":[{"count":5,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/84063\/revisions"}],"predecessor-version":[{"id":288518,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/84063\/revisions\/288518"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/84069"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=84063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=84063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=84063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}