{"id":1807,"date":"2022-07-07T13:15:28","date_gmt":"2022-07-07T05:15:28","guid":{"rendered":"https:\/\/choson_steven.lifenet.com.tw\/?p=1807"},"modified":"2023-03-29T15:29:50","modified_gmt":"2023-03-29T07:29:50","slug":"%e5%88%86%e5%b1%a4layering%e5%8f%af%e4%bb%a5%e6%9b%b4%e5%a5%bd%e5%9c%b0%e7%90%86%e8%a7%a3%e9%80%99%e4%ba%9b%e5%96%ae%e5%85%83%e4%b9%8b%e9%96%93%e7%9a%84%e9%97%9c%e4%bf%82%ef%bc%8c%e5%be%9e%e8%80%8c","status":"publish","type":"post","link":"https:\/\/choson.lifenet.com.tw\/?p=1807","title":{"rendered":"\u5206\u5c64(Layering)\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e9b\u55ae\u5143\u4e4b\u9593\u7684\u95dc\u4fc2\uff0c\u5f9e\u800c\u4f7f\u4f9d\u8cf4\u95dc\u4fc2\u6e05\u6670\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8907\u96dc\u6027\u3002"},"content":{"rendered":"\n<p><img decoding=\"async\" src=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20220707\/20132160qMND5H34Mk.jpg\" alt=\"https:\/\/ithelp.ithome.com.tw\/upload\/images\/20220707\/20132160qMND5H34Mk.jpg\"><br>-\u5b89\u5168\u8a2d\u8a08\u539f\u5247\u5206\u985e<br>\u6a21\u7d44\u5316\u548c\u5206\u5c64\u7684\u539f\u5247\u662f\u8de8\u7cfb\u7d71\u5de5\u7a0b\u5b78\u79d1\u7684\u57fa\u790e\u3002\u6e90\u81ea\u529f\u80fd\u5206\u89e3(functional decomposition)\u7684\u6a21\u7d44\u5316\u548c\u5206\u5c64\u901a\u904e\u4f7f\u7406\u89e3\u7cfb\u7d71\u7684\u7d50\u69cb\u6210\u70ba\u53ef\u80fd\uff0c\u5728\u7ba1\u7406\u7cfb\u7d71\u8907\u96dc\u6027(complexity)\u65b9\u9762\u662f\u6709\u6548\u7684\u3002\u7136\u800c\uff0c\u826f\u597d\u7684\u6a21\u7d44\u5316\u5206\u89e3\u6216\u7cfb\u7d71\u8a2d\u8a08\u7684\u7d30\u5316\u662f\u5177\u6709\u6311\u6230\u6027\u7684\uff0c\u4e26\u4e14\u62b5\u5236\u4e00\u822c\u7684\u539f\u5247\u9673\u8ff0\u3002<br>\u6a21\u7d44\u5316(Modularity)\u7528\u65bc\u5c07\u529f\u80fd\u548c\u76f8\u95dc\u6578\u64da\u7d50\u69cb\u9694\u96e2(isolate)\u70ba\u5b9a\u7fa9\u660e\u78ba\u7684\u908f\u8f2f\u55ae\u5143( logical units)\u3002\u5206\u5c64(Layering)\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e9b\u55ae\u5143\u7684\u95dc\u4fc2\uff0c\u5f9e\u800c\u4f7f\u4f9d\u8cf4\u95dc\u4fc2\u6e05\u6670\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8907\u96dc\u6027\u3002<br>\u6a21\u7d44\u5316\u7684\u5b89\u5168\u8a2d\u8a08\u539f\u5247\u5c07\u529f\u80fd\u6a21\u7d44\u5316( modularity)\u64f4\u5c55\u5230\u5305\u62ec\u57fa\u65bc\u4fe1\u4efb\u3001\u53ef\u4fe1\u5ea6\u3001\u7279\u6b0a\u548c\u5b89\u5168\u653f\u7b56\uff08security policy\uff09\u7684\u8003\u616e\u3002<br>\u57fa\u65bc\u5b89\u5168\u7684\u6a21\u7d44\u5316\u5206\u89e3\u5305\u62ec\u4ee5\u4e0b\u5167\u5bb9\uff1a<br>\u2013 \u5c07\u653f\u7b56\u5206\u914d\u7d66\u7db2\u8def\u4e2d\u7684\u7cfb\u7d71\uff1b<br>\u2013 \u5411\u5206\u5c64\u5206\u914d\u7cfb\u7d71\u653f\u7b56\uff1b<br>\u2013 \u5c07\u7cfb\u7d71\u61c9\u7528\u7a0b\u5e8f\u5206\u96e2\u70ba\u5177\u6709\u4e0d\u540c\u5730\u5740\u7a7a\u9593\u7684\u9032\u7a0b\uff1b<br>\u2013 \u57fa\u65bc\u786c\u9ad4\u652f\u6301\u7684\u7279\u6b0a\u57df\uff0c\u5c07\u9032\u7a0b\u5283\u5206\u70ba\u5177\u6709\u4e0d\u540c\u7279\u6b0a\u7684\u4e3b\u9ad4\u3002<br>\u6a21\u7d44\u5316\u548c\u5206\u5c64\u7684\u5b89\u5168\u8a2d\u8a08\u539f\u5247\u8207\u7e31\u6df1\u9632\u79a6(defense in depth)\u7684\u6982\u5ff5\u4e0d\u540c\uff0c\u9019\u5728 F.4 \u7bc0\u4e2d\u9032\u884c\u4e86\u8a0e\u8ad6\u3002<br>\u8cc7\u6599\u4f86\u6e90\uff1a<a href=\"https:\/\/csrc.nist.gov\/publications\/detail\/sp\/800-160\/vol-1\/final\" target=\"_blank\" rel=\"noreferrer noopener\">NIST SP 800-160 \u7b2c 1 \u5377<\/a><\/p>\n\n\n\n<p>\u53c3\u8003<br>.&nbsp;<a href=\"https:\/\/csrc.nist.gov\/publications\/detail\/sp\/800-160\/vol-1\/final\" target=\"_blank\" rel=\"noreferrer noopener\">NIST SP 800-160 \u7b2c 1 \u5377<\/a><br>.&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Modularity_(networks)\" target=\"_blank\" rel=\"noreferrer noopener\">\u6a21\u7d44\u5316\uff08\u7db2\u7d61\uff09<\/a><\/p>\n\n\n\n<p>\u8cc7\u6599\u4f86\u6e90\uff1a&nbsp;<a href=\"https:\/\/wentzwu.com\/2021\/10\/29\/cissp-practice-questions-20211029\/\" target=\"_blank\" rel=\"noreferrer noopener\">Wentz Wu QOTD-20211029<\/a><\/p>\n\n\n\n<p>PS:\u6b64\u6587\u7ae0\u7d93\u904e\u4f5c\u8005\u540c\u610f\u520a\u767b \u4e26\u4e14\u6388\u6b0a\u53ef\u4ee5\u7ffb\u8b6f\u6210\u4e2d\u6587<\/p>\n","protected":false},"excerpt":{"rendered":"<p>-\u5b89\u5168\u8a2d\u8a08\u539f\u5247\u5206\u985e\u6a21\u7d44\u5316\u548c\u5206\u5c64\u7684\u539f\u5247\u662f\u8de8\u7cfb\u7d71\u5de5\u7a0b\u5b78\u79d1\u7684\u57fa\u790e\u3002\u6e90\u81ea\u529f\u80fd\u5206\u89e3(functional decompo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1807","post","type-post","status-publish","format-standard","hentry","category-cisspcertified-information-systems-security-professional"],"_links":{"self":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1807","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1807"}],"version-history":[{"count":2,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1807\/revisions"}],"predecessor-version":[{"id":2792,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/1807\/revisions\/2792"}],"wp:attachment":[{"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1807"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1807"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/choson.lifenet.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}