{"id":1163,"date":"2019-12-24T10:38:08","date_gmt":"2019-12-24T02:38:08","guid":{"rendered":"http:\/\/149.129.74.185\/?p=1163"},"modified":"2019-12-24T11:57:53","modified_gmt":"2019-12-24T03:57:53","slug":"%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%bd%91%e7%bb%9c-week-16-note","status":"publish","type":"post","link":"http:\/\/www.magicmipamipa.com\/?p=1163","title":{"rendered":"[\u8ba1\u7b97\u673a\u7f51\u7edc] Week 16 Note"},"content":{"rendered":"<h5>Substitution Ciphers<\/h5>\n<p>\u5b57\u6bcd\u4ee3\u66ff\uff0c\u5bb9\u6613\u901a\u8fc7\u5b57\u6bcd\u9891\u7387\u67e5\u627e\u89c4\u5f8b\u3002<\/p>\n<h5>Transposition Ciphers<\/h5>\n<p>\u4f4d\u7f6e\u66ff\u6362\uff08\u79fb\u4f4d\uff09\uff0c\u5b57\u7b26\u4e32\u7684\u5b57\u6bcd\u95f4\u8ddd\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n<h5>Product Ciphers<\/h5>\n<p>P-box \u6362\u4f4d<\/p>\n<p>S-box \u7f16\u7801<\/p>\n<p>Product cipher \u91cd\u590d\u4f7f\u7528 P-box \u548c S-box<\/p>\n<h5>DES Data Encryption Standard<\/h5>\n<p>64-bit \u660e\u6587\u66ff\u6362 64-bit \u6697\u6587<\/p>\n<p>\u7b97\u6cd5\u516c\u5f00\uff0c\u5bc6\u94a5\u4fdd\u5bc6<\/p>\n<h5>Triple DES<\/h5>\n<p>\u6709\u4e24\u4e2aKey\uff0cK1\u52a0\u5bc6\u540eK2\u89e3\u5bc6\uff0c\u518d\u7528K1\u52a0\u5bc6\uff0c\u5f97\u5230\u79d8\u6587\u3002<\/p>\n<p>\u76ee\u524d\u662f\u5b89\u5168\u7684\uff0c\u5bc6\u94a5\u957f\u5ea6\u4e3aK1*K2\u3002<\/p>\n<p>\u53ef\u4e0eDES\u5411\u4e0b\u517c\u5bb9\uff0c\u5373K1=K2\u3002<\/p>\n<h5>\u5bf9\u79f0\u5bc6\u94a5\u7b97\u6cd5 Symmetric-Key Algorithm<\/h5>\n<h5>Public-Key Algorithm<\/h5>\n<h6>RSA<\/h6>\n<p>\u516c\u5f00\u52a0\u5bc6\u94a5\u5319\uff0c\u4e0d\u516c\u5f00\u89e3\u5bc6\u94a5\u5319\u3002<\/p>\n<p>\u5728\u4e0d\u540c\u7684\u4f4d\u7f6e\u4e5f\u8981\u8fdb\u884c\u4e0d\u540c\u7684\u52a0\u5bc6\uff0c\u4fdd\u8bc1\u4e0d\u4f1a\u88ab\u66b4\u529b\u62f7\u8d1d\u3002<\/p>\n<h5>Cipher Block Chaining Mode \u5bc6\u7801\u94fe<\/h5>\n<p>\u4e0a\u4e00\u4e2a\u5bc6\u6587\u4f5c\u4e3a\u5bc6\u94a5\u8fdb\u5165\u52a0\u5bc6\u8fc7\u7a0b\uff0c\u5f62\u6210\u5bc6\u7801\u94fe\u3002<\/p>\n<p>\u89e3\u5bc6\u540c\u6837\u4ece\u5934\u89e3\u5bc6\u540e\u52a0\u5165\u4e0b\u4e00\u4e2a\u5bc6\u6587\u7684\u89e3\u5bc6\u8fc7\u7a0b\u3002<\/p>\n<h5>Cryptographic Principles<\/h5>\n<ul>\n<li>Redundancy \u5197\u4f59\n<ul>\n<li>\u52a0\u5bc6\u5185\u5bb9\u5305\u542b\u5927\u91cf\u5197\u4f59\u4fe1\u606f<\/li>\n<\/ul>\n<\/li>\n<li>Freshness \u65b0\u9c9c\u5ea6\n<ul>\n<li>\u5bc6\u94a5\u8fc7\u671f\u4f5c\u5e9f\uff0c\u9632\u6b62\u5229\u7528\u539f\u6765\u7684\u4fe1\u606f\u53d1\u9001\u7684<span style=\"color: #ff99cc;\">\u91cd\u53d1\u653b\u51fb<\/span>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>Quantum Cryptography \u91cf\u5b50\u901a\u4fe1<\/h5>\n<p>\u901a\u4fe1\u65f6\u91c7\u7528\u4e00\u6b21\u6027\u5bc6\u94a5\u3002<\/p>\n<p>\u5149\u901a\u4fe1\uff0c\u5149\u5177\u6709\u6ce2\u7c92\u4e8c\u8c61\u6027\u3002<\/p>\n<h5>Digital Signatures \u6570\u5b57\u7b7e\u540d<\/h5>\n<ul>\n<li>Symmetric-Key Signatures\n<ul>\n<li>Digital signatures with Big Brother<\/li>\n<\/ul>\n<\/li>\n<li>Public-Key Signatures\n<ul>\n<li>\u5bc6\u94a5\u9a8c\u8bc1<\/li>\n<li>\u7b2c\u4e09\u65b9\u8bb0\u5f55\u53c2\u4e0e\u53cc\u65b9\u7684\u516c\u94a5\u66f4\u6362<\/li>\n<li>\u8ba4\u8bc1\u4e2d\u5fc3\u7ba1\u7406<\/li>\n<\/ul>\n<\/li>\n<li>Message Digests<\/li>\n<li>The Birthday Attack<\/li>\n<\/ul>\n<h5><\/h5>\n<h5>Kerberos<\/h5>\n<h5>PGP<\/h5>\n<h5>Web Security<\/h5>\n<h6>Secure Naming \u57df\u540d\u5b89\u5168<\/h6>\n<p>SSL<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Substitution Ciphers \u5b57\u6bcd\u4ee3\u66ff\uff0c\u5bb9\u6613\u901a\u8fc7\u5b57\u6bcd\u9891\u7387\u67e5\u627e\u89c4\u5f8b\u3002 Transposit [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[19,16],"tags":[],"_links":{"self":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/1163"}],"collection":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1163"}],"version-history":[{"count":3,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/1163\/revisions"}],"predecessor-version":[{"id":1170,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=\/wp\/v2\/posts\/1163\/revisions\/1170"}],"wp:attachment":[{"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1163"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.magicmipamipa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}