{"id":1047,"date":"2019-11-27T16:01:25","date_gmt":"2019-11-27T16:01:25","guid":{"rendered":"https:\/\/www.jayjaydream.com\/?p=1047"},"modified":"2019-11-27T16:07:48","modified_gmt":"2019-11-27T16:07:48","slug":"2017%e5%b9%b4%e4%b8%8a%e5%8d%8a%e5%b9%b4%e4%bf%a1%e6%81%af%e5%ae%89%e5%85%a8%e5%b7%a5%e7%a8%8b%e5%b8%88%e8%80%83%e8%af%95%e7%9c%9f%e9%a2%98%e5%90%ab%e7%ad%94%e6%a1%88%ef%bc%88%e4%b8%8b%e5%8d%88","status":"publish","type":"post","link":"https:\/\/www.jayjaydream.com\/?p=1047","title":{"rendered":"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09"},"content":{"rendered":"

\u8bd5\u9898\u4e00<\/strong><\/p>\n

\u9605\u8bfb\u4e0b\u5217\u8bf4\u660e\uff0c\u56de\u7b54\u95ee\u9898 1 \u81f3\u95ee\u9898 3\uff0c\u5c06\u89e3\u7b54\u5199\u5728\u7b54\u9898\u7eb8\u7684\u5bf9 \u5e94\u680f\u5185\u3002<\/p>\n

\u3010\u8bf4\u660e\u3011<\/p>\n

\u5b89\u5168\u76ee\u6807\u7684\u5173\u952e\u662f\u5b9e\u73b0\u5b89\u5168\u7684\u4e09\u5927\u8981\u7d20:\u673a\u5bc6\u6027\u3001\u5b8c\u6574\u6027\u548c\u53ef\u7528\u6027\u3002\u5bf9\u4e8e\u4e00\u822c\u6027\u7684\u4fe1\u606f\u7c7b\u578b\u7684\u5b89\u5168\u5206\u7c7b\u6709\u4ee5\u4e0b\u8868\u8fbe\u5f62\u5f0f:<\/p>\n

{ (\u673a\u5bc6\u6027\uff0c\u5f71\u54cd\u7b49\u7ea7)\uff0c (\u5b8c\u6574\u6027\uff0c\u5f71\u54cd\u7b49\u7ea7)\uff0c (\u53ef\u7528\u6027\uff0c\u5f71 \u54cd\u7b49\u7ea7) }<\/p>\n

\u5728\u4e0a\u8ff0\u8868\u8fbe\u5f0f\u4e2d\uff0c\u201d\u5f71\u54cd\u7b49\u7ea7\u201d\u7684\u503c\u53ef\u4ee5\u53d6\u4e3a\u4f4e (L)\u3001\u4e2d(M)\u3001\u9ad8(H) \u4e09\u7ea7\u4ee5\u53ca\u4e0d\u9002\u7528 (NA)\u3002<\/p>\n

\u3010\u95ee\u9898 1\u3011(6 \u5206)<\/p>\n

\u8bf7\u7b80\u8981\u8bf4\u660e\u673a\u5bc6\u6027\u3001\u5b8c\u6574\u6027\u548c\u53ef\u7528\u6027\u7684\u542b\u4e49\u3002<\/p>\n

\u3010\u95ee\u9898 2\u3011(2 \u5206\uff09<\/p>\n

\u5bf9\u4e8e\u5f71\u54cd\u7b49\u7ea7\u201d\u4e0d\u9002\u7528\u201d\u901a\u5e38\u53ea\u9488\u5bf9\u54ea\u4e2a\u5b89\u5168\u8981\u7d20?<\/p>\n

\u3010\u95ee\u9898 3 \u3011(3 \u5206)<\/p>\n

\u5982\u679c\u4e00\u4e2a\u666e\u901a\u4eba\u5728\u5b83\u7684\u4e2a\u4eba Web \u670d\u52a1\u5668\u4e0a\u7ba1\u7406\u5176\u516c\u5f00\u4fe1\u606f\u3002\u8bf7\u95ee\u8fd9\u79cd\u516c\u5f00\u4fe1\u606f\u7684\u5b89\u5168\u5206\u7c7b\u662f\u4ec0\u4e48?<\/p>\n

\u53c2\u8003\u7b54\u6848\uff1a<\/p>\n

\u3010\u95ee\u9898 1\u3011<\/p>\n

\uff081\uff09\u673a\u5bc6\u6027\uff1a\u7ef4\u62a4\u5bf9\u4fe1\u606f\u8bbf\u95ee\u548c\u516c\u5f00\u7ecf\u6388\u6743\u7684\u9650\u5236\uff0c\u5305\u62ec\u4fdd\u62a4\u4e2a\u4eba\u9690\u79c1\u548c\u79c1\u6709\u7684\u4fe1\u606f\u3002
\uff082\uff09\u5b8c\u6574\u6027\uff1a\u9632\u6b62\u4fe1\u606f\u4e0d\u9002\u5f53\u7684\u4fee\u6539\u548c\u6bc1\u574f\uff0c\u5305\u62ec\u4fdd\u8bc1\u4fe1\u60a3\u7684\u4e0d\u53ef\u62b5\u8d56\u6027\u548c\u771f\u5b9e\u6027\u3002
\uff083\uff09\u53ef\u7528\u6027\uff1a\u4fdd\u8bc1\u4fe1\u606f\u53ca\u65f6\u4e14\u53ef\u9760\u7684\u8bbf\u95ee\u548c\u4f7f\u7528\u3002<\/p>\n

\u3010\u95ee\u98982\u3011\u201c\u4e0d\u9002\u7528\u201d\u901a\u5e38\u9488\u5bf9\u673a\u5bc6\u6027\u3002<\/p>\n

\u3010\u95ee\u98983\u3011{\uff08\u673a\u5bc6\u6027\uff0cNA\uff09\uff0c\uff08\u5b8c\u6574\u6027\uff0cM\uff09\uff0c\uff08\u53ef\u7528\u6027\uff0cM\uff09}<\/p>\n

 <\/p>\n

\u8bd5\u9898\u4e8c<\/strong><\/p>\n

\u9605\u8bfb\u4e0b\u5217\u8bf4\u660e\uff0c\u56de\u7b54\u95ee\u9898 1 \u548c\u95ee\u9898 2\uff0c\u5c06\u89e3\u7b54\u5199\u5728\u7b54\u9898\u7eb8\u7684\u5bf9 \u5e94\u680f\u5185\u3002
\n\u3010\u8bf4\u660e\u3011
\nWindows \u7cfb\u7edf\u7684\u7528\u6237\u7ba1\u7406\u914d\u7f6e\u4e2d\uff0c\u6709\u591a\u9879\u5b89\u5168\u8bbe\u7f6e\uff0c\u5982\u56fe 2-1 \u6240\u793a\u3002
\n\"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09
\n\u3010\u95ee\u9898 1\u3011(3 \u5206)
\n\u8bf7\u95ee\u5bc6\u7801\u548c\u5e10\u6237\u9501\u5b9a\u5b89\u5168\u9009\u9879\u8bbe\u7f6e\u5c5e\u4e8e\u56fe\u4e2d\u5b89\u5168\u8bbe\u7f6e\u7684\u54ea\u4e00\u9879?
\n\u3010\u95ee\u9898 2\u3011(3 \u5206)
\nWindows \u7684\u5bc6\u7801\u7b56\u7565\u6709\u4e00\u9879\u5b89\u5168\u7b56\u7565\u5c31\u662f\u8981\u6c42\u5bc6\u7801\u5fc5\u987b\u7b26\u5408\u590d\u6742 \u6027\u8981\u6c42\uff0c\u5982\u679c\u542f\u7528\u6b64\u7b56\u7565\uff0c \u90a3\u4e48\u8bf7\u95ee:\u7528\u6237 Administrator \u62df\u9009\u53d6\u7684\u4ee5\u4e0b\u516d\u4e2a\u5bc6\u7801\u4e2d\u7684\u54ea \u4e9b\u7b26\u5408\u6b64\u7b56\u7565?
\n123456 \u00a0 \u00a0Admin123 \u00a0 \u00a0 Abcd321 \u00a0 \u00a0 Admin@ \u00a0 \u00a0 test123! \u00a0 \u00a0 123@host<\/p>\n

 <\/p>\n

\u53c2\u8003\u7b54\u6848\uff1a<\/p>\n

\u3010\u95ee\u9898 1\u3011\u5c5e\u4e8e\u8d26\u53f7\u7b56\u7565\u3002<\/p>\n

\u3010\u95ee\u98982\u3011Abcd321\u00a0 test123\uff01\u00a0123@host<\/p>\n

 <\/p>\n

\u8bd5\u9898\u4e09<\/strong><\/p>\n

\u3010\u8bf4\u660e\u3011
\n\u626b\u63cf\u6280\u672f\u662f\u7f51\u7edc\u653b\u9632\u7684\u4e00\u79cd\u91cd\u8981\u624b\u6bb5\uff0c\u5728\u653b\u548c\u9632\u5f53\u4e2d\u90fd\u6709\u5176\u91cd\u8981\u610f\u4e49\u3002nmap \u662f\u4e00\u4e2a \u5f00\u653e\u6e90\u7801\u7684\u7f51\u7edc\u626b\u63cf\u5de5\u5177\uff0c\u53ef\u4ee5\u67e5\u770b\u7f51\u7edc\u7cfb\u7edf \u4e2d\u6709\u54ea\u4e9b\u4e3b\u673a\u5728\u8fd0\u884c\u4ee5\u53ca\u54ea\u4e9b\u670d\u52a1\u662f\u5f00\u653e\u7684\u3002 namp \u5de5\u5177\u7684\u547d\u4ee4\u9009 \u9879: sS \u7528\u4e8e\u5b9e\u73b0 SYN \u626b\u63cf\uff0c\u8be5\u626b\u63cf\u7c7b\u578b\u662f\u901a\u8fc7\u89c2\u5bdf\u5f00\u653e\u7aef\u53e3\u548c\u5173\u95ed \u7aef\u53e3\u5bf9\u63a2\u6d4b\u5206\u7ec4\u7684\u54cd\u5e94\u6765\u5b9e\u73b0\u7aef\u53e3\u626b\u63cf\u7684\u3002\u8bf7\u6839\u636e\u56fe 3-1 \u56de\u7b54\u4e0b\u5217 \u95ee\u9898\u3002
\n\"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09
\n\u3010\u95ee\u9898 1\u3011 (2 \u5206)
\n\u6b64\u6b21\u626b\u63cf\u7684\u76ee\u6807\u4e3b\u673a\u7684 IP \u5730\u5740\u662f\u591a\u5c11\uff1f
\n\u3010\u95ee\u9898 2\u3011(2 \u5206)
\nSYN \u626b\u63cf\u91c7\u7528\u7684\u4f20\u8f93\u5c42\u534f\u8bae\u540d\u5b57\u662f\u4ec0\u4e48?
\n\u3010\u95ee\u9898 3\u3011 (2 \u5206)<\/p>\n

SYN \u7684\u542b\u4e49\u662f\u4ec0\u4e48?
\n\u3010\u95ee\u9898 4\u3011 (4 \u5206)
\n\u76ee\u6807\u4e3b\u673a\u5f00\u653e\u4e86\u54ea\u51e0\u4e2a\u7aef\u53e3?\u7b80\u8981\u8bf4\u660e\u5224\u65ad\u4f9d\u636e\u3002
\n\u3010\u95ee\u9898 5\u3011(3 \u5206)
\n\u6bcf\u6b21\u626b\u63cf\u6709\u6ca1\u6709\u5b8c\u6210\u5b8c\u6574\u7684\u4e09\u6b21\u63e1\u624b?\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f\u4ec0\u4e48?
\n\u3010\u95ee\u9898 6\u3011(5 \u5206)
\n\u8865\u5168\u88683-1 \u6240\u793a\u7684\u9632\u706b\u5899\u8fc7\u6ee4\u5668\u89c4\u5219\u7684\u7a7a(1) \u2013 (5\uff09\uff0c\u8fbe\u5230\u9632\u706b\u5899\u7981\u6b62\u6b64\u7c7b\u626b\u63cf\u6d41\u91cf\u8fdb\u5165\u548c\u5904\u51fa\u7f51\u7edc \uff0c\u540c\u65f6\u53c8\u80fd\u5141\u8bb8\u7f51\u5185\u7528\u6237\u8bbf\u95ee\u5916\u90e8\u7f51\u9875\u670d\u52a1\u5668\u7684\u76ee\u7684\u3002
\n\u8868 3-1 \u9632\u706b\u5899\u8fc7\u6ee4\u5668\u89c4\u5219\u8868
\n\"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09
\n\u3010\u95ee\u9898 7\u3011 (2 \u5206)
\n\u7b80\u8981\u8bf4\u660e\u4e3a\u4ec0\u4e48\u9632\u706b\u5899\u9700\u8981\u5728\u8ff8\u51fa\u4e24\u4e2a\u65b9\u5411\u4e0a\u5bf9\u636e\u6570\u636e\u5305\u8fdb\u884c\u8fc7\u6ee4\u3002<\/p>\n

\u53c2\u8003\u7b54\u6848\uff1a<\/p>\n

\u3010\u95ee\u9898 1\u3011192.168.220.1<\/p>\n

\u3010\u95ee\u98982\u3011TCP\u534f\u8bae<\/p>\n

\u3010\u95ee\u98983\u3011\u540c\u6b65\u4fe1\u53f7\uff0c\u662fTCP\/IP\u5efa\u7acb\u8fde\u63a5\u65f6\u4f7f\u7528\u7684\u63e1\u624b\u4fe1\u53f7\u3002<\/p>\n

\u3010\u95ee\u98984\u3011\u76ee\u6807\u4e3b\u673a\u5f00\u653e\u7684\u7aef\u53e3\u4e3a\uff1a135\u7aef\u53e3\uff0c139\u7aef\u53e3\u3002
\u5224\u65ad\u4f9d\u636e\uff1a\u5982\u679c\u7aef\u53e3\u5f00\u653e\uff0c\u76ee\u6807\u4e3b\u673a\u4f1a\u54cd\u5e94\u626b\u63cf\u4e3b\u673a\u7684SYN\/ ACK\u8fde\u63a5\u8bf7\u6c42\uff1b\u5982\u679c\u7aef\u53e3\u5173\u95ed\uff0c\u5219\u76ee\u6807\u4e3b\u673a\u56de\u5411\u626b\u63cf\u4e3b\u673a\u53d1\u9001RST\u7684\u54cd\u5e94\u3002<\/p>\n

\u3010\u95ee\u98985\u3011\u00a0\u6ca1\u6709\u5b8c\u6210\uff0c\u8fd9\u6837\u505a\u5373\u4f7f\u65e5\u5fd7\u4e2d\u5bf9\u626b\u63cf\u6709\u6240\u8bb0\u5f55\uff0c\u4f46\u662f\u5c1d\u8bd5\u8fdb\u884c\u8fde\u63a5\u7684\u8bb0\u5f55\u4e5f\u8981\u6bd4\u5168\u626b\u63cf\u5c11\u5f97\u591a\u3002<\/p>\n

\u3010\u95ee\u98986\u3011\uff081\uff09UDP\u00a0\u00a0\u00a0\u00a0\u00a0 \uff082\uff09*\u00a0\u00a0\u00a0 \uff083\uff0980\u00a0 \uff084\uff090\u00a0 \uff085\uff091<\/p>\n

\u3010\u95ee\u98987\u3011\u5728\u8fdb\u5165\u65b9\u5411\u8fc7\u6ee4\u662f\u4e3a\u4e86\u9632\u6b62\u88ab\u4eba\u653b\u51fb\uff0c\u800c\u5728\u51fa\u53e3\u65b9\u5411\u8fc7\u6ee4\u5219\u662f\u4e3a\u4e86\u9632\u6b62\u81ea\u5df1\u6210\u4e3a\u653b\u51fb\u7684\u6e90\u5934\u6216\u8005\u8df3\u677f\u3002<\/p>\n

 <\/p>\n

\u8bd5\u9898\u56db<\/strong><\/p>\n

\u3010\u8bf4\u660e\u3011
\nDES \u662f\u4e00\u79cd\u5206\u7ec4\u5bc6\u7801\uff0c\u5df1\u77e5 DES \u52a0\u5bc6\u7b97\u6cd5\u7684\u67d0\u4e2a S \u76d2\u5982\u8868 4-1 \u6240\u793a\u3002
\n\"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09
\n\u3010\u95ee\u98981\u3011 (4\u5206)
\n\u8bf7\u8865\u5168\u8be5 S \u76d2\uff0c\u586b\u8865\u5176\u4e2d\u7684\u7a7a(1) \u2013 (4\uff09\uff0c\u5c06\u89e3\u7b54\u5199\u5728\u7b54\u9898\u7eb8\u7684\u5bf9\u5e94\u680f\u5185\u3002
\n\u3010\u95ee\u9898 2\u3011 (2\u5206\uff09
\n\u5982\u679c\u8be5 S \u76d2\u7684\u8f93\u5165\u4e3a 110011\uff0c\u8bf7\u8ba1\u7b97\u5176\u4e8c\u8fdb\u5236\u8f93\u51fa\u3002
\n\u3010\u95ee\u98983\u3011\uff086\u5206\uff09
\nDES\u52a0\u5bc6\u7684\u521d\u59cb\u7f6e\u6362\u8868\u5982\u4e0b\uff1a
\n\"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09
\n\u7f6e\u6362\u65f6\uff0c\u4ece\u5de6\u4e0a\u89d2\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\uff0c\u8868\u793a\u8f93\u5165\u7684\u94ed\u6587\u7684\u7b2c58\u4f4d\u7f6e\u6362\u6210\u8f93\u51fa\u7684\u7b2c1\u4f4d\uff0c\u8f93\u5165\u660e\u6587\u7684\u7b2c50\u4f4d\u7f6e\u6362\u6210\u8f93\u51fa\u7684\u7b2c2\u4f4d\uff0c\u4ece\u5de6\u81f3\u53f3\uff0c\u4ece\u4e0a\u5f80\u4e0b\uff0c\u4f9d\u6b21\u7c7b\u63a8\u3002
\nDES\u52a0\u5bc6\u65f6\uff0c\u5bf9\u8f93\u5165\u768464\u4f4d\u660e\u6587\u9996\u5148\u8fdb\u884c\u521d\u59cb\u7f6e\u6362\u64cd\u4f5c\u3002
\n\u82e5\u7f6e\u6362\u8f93\u5165\u7684\u660e\u6587M=0123456789ABCDEF\uff0816\u8fdb\u5236\uff09\uff0c\u8bf7\u8ba1\u7b97\u5176\u8f93\u51fa\uff0816\u8fdb\u5236\u8868\u793a\uff09\u3002
\n\u3010\u95ee\u98984\u3011\uff082\u5206\uff09
\n\u5982\u679c\u6709\u7b80\u5316\u7684DES\u7248\u672c\uff0c\u5176\u660e\u6587\u8f93\u5165\u4e3a8\u6bd4\u7279\uff0c\u521d\u59cb\u7f6e\u6362\u8868IP\u5982\u4e0b\uff1a
\nIP\uff1a2 6 3 1 4 8 5 7
\n\u8bf7\u7ed9\u51fa\u5176\u9006\u521d\u59cb\u7f6e\u6362\u8868\u3002
\n\u3010\u95ee\u98985\u3011\uff082\u5206\uff09
\nDES\u52a0\u5bc6\u7b97\u6cd5\u5b58\u5728\u4e00\u4e9b\u5f31\u70b9\u548c\u4e0d\u8db3\uff0c\u4e3b\u8981\u6709\u5bc6\u94a5\u592a\u77ed\u548c\u5b58\u5728\u5f31\u5bc6\u94a5\u3002\u8bf7\u95ee\uff0c\u5f31\u5bc6\u94a5\u7684\u5b9a\u4e49\u662f\u4ec0\u4e48\uff1f<\/p>\n

\u53c2\u8003\u7b54\u6848\uff1a<\/p>\n

\u3010\u95ee\u9898 1\u3011<\/p>\n

\uff081\uff0910\u00a0\uff082\uff096\u00a0\uff083\uff091 \uff084\uff0911<\/p>\n

\u3010\u95ee\u98982\u3011<\/p>\n

0100<\/p>\n

\u3010\u95ee\u98983\u3011<\/p>\n

M = \uff080123456789ABCDEF\uff0916<\/sub>\u00a0= \uff0800000001 00100011 01000101 01100111 10001001\u00a0\u00a0\u00a010101011 11001101 11101111\uff092<\/sub>\u7ecf\u8fc7IP\u7f6e\u6362\uff0c\u7ed3\u679c\u4e3a\uff1aM\u2019 =\uff0811001100 00000000 11001100 11111111\u00a0 11110000 10101010 11110000 10101010\uff092<\/sub>=\uff08CC00CCFFF0AAF0AA\uff0916<\/sub><\/p>\n

\u3010\u95ee\u98984\u3011<\/p>\n

4\u00a0 1\u00a0 3\u00a0 5\u00a0 7\u00a0 2\u00a0 8\u00a0 6<\/p>\n

\u3010\u95ee\u98985\u3011<\/p>\n

\u5f31\u5bc6\u94a5\u4e0d\u53d7\u4efb\u4f55\u5faa\u73af\u79fb\u4f4d\u7684\u5f71\u54cd\uff0c\u5e76\u4e14\u53ea\u80fd\u5f97\u5230\u76f8\u540c\u7684\u5b50\u5bc6\u94a5\uff0c\u7531\u51680\u6216\u51681\u7ec4\u6210\u7684\u5bc6\u94a5\u663e\u7136\u662f\u5f31\u5bc6\u94a5\uff0c\u5b50\u5bc6\u94a5\u751f\u6210\u8fc7\u7a0b\u4e2d\u88ab\u5206\u5272\u7684\u4e24\u90e8\u5206\u5206\u522b\u4e3a\u51680\u6216\u51681\u65f6\u4e5f\u662f\u5f31\u5bc6\u94a5\u3002<\/p>\n

 <\/p>\n

\u8bd5\u9898\u4e94<\/strong><\/p>\n

\u3010\u8bf4\u660e\u3011\u5728\u516c\u94a5\u4f53\u5236\u4e2d\uff0c\u6bcf\u4e00\u7528\u6237U\u90fd\u6709\u81ea\u5df1\u7684\u516c\u5f00\u5bc6\u94a5PKu\u548c\u79c1\u94a5SKu\u3002\u5982\u679c\u4efb\u610f\u4e24\u4e2a\u7528\u6237A\u548cB\u6309\u4ee5\u4e0b\u65b9\u5f0f\u901a\u4fe1:<\/p>\n

void Challenge(char *str)<\/p>\n

{<\/p>\n

char temp[9]={0}\uff1b<\/p>\n

strncpy(temp\uff0cstr\uff0c8)\uff1b<\/p>\n

printf(\u201ctemp=%s\\n\u201d\uff0ctemp)\uff1b<\/p>\n

if(strcmp(temp\u201dPlease!@\u201d)=O){<\/p>\n

printf(\u201cKEY: ****\u201d);<\/p>\n

}<\/p>\n

}<\/p>\n

int main(int argc\uff0cchar *argv[])<\/p>\n

{<\/p>\n

char buf2[16]\uff1b<\/p>\n

int check=1\uff1b<\/p>\n

char buf[8]\uff1b<\/p>\n

strcpy (buf2, \u201cgive me key! !\u201d);<\/p>\n

strcpy(buf\uff0cargv[ 1]);<\/p>\n

if(check=65) \u00a0{<\/p>\n

Challenge(bu f);<\/p>\n

}<\/p>\n

else {<\/p>\n

printf(\u201cCheck is not 65 (%d) \\n Program terminated!!\\n\u201d\uff0ccheck);<\/p>\n

}<\/p>\n

return \u00a00;<\/p>\n

}<\/p>\n

A\u53d1\u7ed9B\u6d88\u606f[EpKB(m)\uff0c\uff0cA]\u3002<\/p>\n

\u5176\u4e2dEk(m)\u4ee3\u8868\u7528\u5bc6\u94a5K\u5bf9\u6d88\u606fm\u8fdb\u884c\u52a0\u5bc6\u3002<\/p>\n

B\u6536\u5230\u4ee5\u540e\uff0c\u81ea\u52a8\u5411A\u8fd4\u56de\u6d88\u606f\u3010EPkA(m),B\u3011\uff0c\u4ee5\u4f7fA\u77e5\u9053B\u786e\u5b9e\u6536\u5230\u6d88\u606fm\u3002<\/p>\n

\u3010\u95ee\u98981\u3011(4\u5206)<\/p>\n

\u7528\u6237C\u600e\u6837\u901a\u8fc7\u653b\u51fb\u624b\u6bb5\u83b7\u53d6\u7528\u6237A\u53d1\u9001\u7ed9\u7528\u6237B\u7684\u6d88\u606fm\u3002<\/p>\n

\u3010\u95ee\u98982\u3011(6\u5206)<\/p>\n

\u82e5\u901a\u4fe1\u683c\u5f0f\u53d8\u4e3a:<\/p>\n

A\u7ed9B\u53d1\u6d88\u606f:EPKB(ESKA(mLm\uff0cA)<\/p>\n

B\u7ed9A\u53d1\u6d88\u606f:EpKA(EsKN(m)\uff0cm\uff0cB)<\/p>\n

\u8fd9\u65f6\u7684\u5b89\u5168\u6027\u5982\u4f55?\u8bf7\u5206\u6790A\uff0cB\u6b64\u65f6\u662f\u5982\u4f55\u76f8\u4e92\u8ba4\u8bc1\u5e76\u4f20\u9012\u6d88\u606f\u7684\u3002<\/p>\n

\u3010\u7b54\u6848\u548c\u89e3\u6790\u3011\uff1a<\/p>\n

\u3010\u95ee\u9898 1\u3011<\/p>\n

\u653b\u51fb\u7528\u6237 C \u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u624b\u6bb5\u83b7\u53d6\u62a5\u6587 m\uff1a
\n1. \u7528\u6237C\u622a\u83b7\u6d88\u606f: \uff08EPKB\uff08m\uff09\uff0c A\uff09
\n2. \u7528\u6237C\u7be1\u6539\u6d88\u606f: \uff08EPKB\uff08m\uff09\uff0c C\uff09
\n3. \u7528\u6237B\u8fd4\u56de\u6d88\u606f: \uff08EPKC\uff08m\uff09\uff0c B\uff09
\n4. \u7528\u6237C\u6210\u529f\u89e3\u5bc6\uff0c\u6700\u540e\u5f97\u5230\u660e\u6587m\u3002<\/p>\n

\u3010\u95ee\u98982\u3011<\/p>\n

\u5b89\u5168\u6027\u63d0\u9ad8\u4e86\uff0c\u80fd\u5b9e\u73b0\u52a0\u5bc6\u548c\u8ba4\u8bc1\u7684\u53cc\u91cd\u4efb\u52a1\u3002
\n\u7b2c\u4e00\u6b65\uff0cA \u53d1\u7ed9 B \u6d88\u606f\u662f A \u9996\u5148\u7528\u81ea\u5df1\u7684\u79d8\u5bc6\u94a5 SKA\u5bf9\u6d88\u606f m \u52a0\u5bc6\uff0c\u7528\u4e8e\u63d0\u4f9b\u6570\u5b57\u7b7e\u540d\uff0c\u518d\u7528\u63a5\u6536\u65b9\u7684\u516c\u5f00\u94a5 PKB\u7b2c 2 \u6b21\u52a0\u5bc6\uff0c\u5bc6\u6587\u4e2d\u5305\u62ec\u660e\u6587\u7684\u4fe1\u606f\u548c A \u7684\u8eab\u4efd\u4fe1\u606f\u3002
\n\u7b2c\u4e8c\u6b65\uff0c\u63a5\u6536\u65b9 B \u6536\u5230\u5bc6\u6587\uff0c\u7528\u81ea\u5df1\u7684\u79c1\u94a5\u5148\u89e3\u5bc6\uff0c\u518d\u7528\u5bf9\u65b9\u7684\u516c\u94a5\u9a8c\u8bc1\u53d1\u9001\u65b9\u7684\u8eab\u4efd\u662f A\uff0c\u5b9e\u73b0\u4e86 B \u5bf9 A \u7684\u8ba4\u8bc1\uff0c\u5e76\u83b7\u53d6\u4e86\u660e\u6587\u3002
\n\u7b2c\u4e09\u6b65\uff0cB \u53d1\u7ed9 A \u6d88\u606f\u662f B \u9996\u5148\u7528\u81ea\u5df1\u7684\u79c1\u94a5 SKB\u5bf9\u6d88\u606f m \u52a0\u5bc6\u5e76\u7b7e\u540d\uff0c \u518d\u7528 A \u7684\u516c\u5f00\u94a5 PKA\u7b2c 2 \u6b21\u52a0\u5bc6\uff0c \u5bc6\u6587\u4e2d\u5305\u62ec\u660e\u6587\u7684\u4fe1\u606f\u548c A \u7684\u8eab\u4efd\u4fe1\u606f\uff0c \u8fd8\u6709 B \u5bf9\u63a5\u6536\u7684 m \u7684\u7b7e\u540d\u5bc6\u6587\u3002
\n\u7b2c\u56db\u6b65\uff0c\u53ea\u6709 A \u624d\u80fd\u7528\u81ea\u5df1\u7684\u79c1\u94a5\u6253\u5f00 B \u9001\u8fc7\u6765\u7684\u5bc6\u6587\uff0c \u5e76\u4e14\u9a8c\u8bc1\u662f B \u7684\u7b7e\u540d\uff0c \u5b9e\u73b0\u4e86 A \u5bf9 B\u7684\u8ba4\u8bc1\uff0c\u5f53 A \u770b\u89c1\u539f\u6837\u8fd4\u56de\u7684 m\uff0c\u5c31\u77e5\u9053 B \u6536\u5230\u4e86 A \u53d1\u9001\u7684\u660e\u6587 m \u4e86\u3002<\/p>\n

 <\/p>\n

\u8bd5\u9898\u516d<\/strong><\/p>\n

\u3010\u8bf4\u660e\u3011
\n\u57fa\u4e8e Windows32 \u4f4d\u7cfb\u7edf\u5206\u6790\u4e0b\u5217\u4ee3\u7801\uff0c\u56de\u7b54\u76f8\u5173\u95ee\u9898 \u3002
\nvoid Challenge(char *str)
\n{
\nchar temp[9]={0}\uff1b
\nstrncpy(temp\uff0cstr\uff0c8)\uff1b
\nprintf(\u201ctemp=%s\\n\u201d\uff0ctemp)\uff1b
\nif(strcmp(temp\u201dPlease!@\u201d)==0){
\nprintf(\u201cKEY: ****\u201d);
\n}
\n}
\nint main(int argc\uff0cchar *argv[ ])
\n{<\/p>\n

char buf2[16]
\nint check=1;
\nchar buf[8]
\nstrcpy (buf2, \u201cgive me key! !\u201d);
\nstrcpy(buf\uff0cargv[1]);
\nif(check==65) {
\nchallenge(buf);
\n}
\nelse {
\nprintf(\u201cCheck is not 65 (%d) \\n Program terminated!!\\n\u201d\uff0ccheck)\uff1b
\n}
\nreturn 0;<\/p>\n

}
\n\u3010\u95ee\u9898 1\u3011(3 \u5206)
\nmain \u51fd\u6570\u5185\u7684\u4e09\u4e2a\u672c\u5730\u53d8\u91cf\u6240\u5728\u7684\u5185\u5b58\u533a\u57df\u79f0\u4e3a\u4ec0\u4e48?\u5b83\u7684\u4e24\u4e2a\u6700\u57fa\u672c\u64cd\u4f5c\u662f\u4ec0\u4e48\uff1f
\n\u3010\u95ee\u9898 2\u3011\uff083\u5206\uff09
\n\u753b\u51fabuf\uff0ccheck\uff0cbuf2 \u4e09\u4e2a\u53d8\u91cf\u5728\u5185\u5b58\u7684\u5e03\u5c40\u56fe\u3002
\n\"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09
\n\u3010\u95ee\u9898 3\u3011\uff082\u5206\uff09
\n\u5e94\u8be5\u7ed9\u7a0b\u5e8f\u63d0\u4f9b\u4ec0\u4e48\u6837\u7684\u547d\u4ee4\u884c\u53c2\u6570\u503c\uff08\u901a\u8fc7argv\u53d8\u91cf\u4f20\u9012\uff09\u624d\u80fd\u4f7f\u7a0b\u5e8f\u6267\u884c\u6d41\u7a0b\u8fdb\u5165\u5224\u65ad\u8bed\u53e5if\uff08check=65\uff09\u2026.\u7136\u540e\u8c03\u7528challenge( )\u51fd\u6570\u3002
\n\u3010\u95ee\u98984\u3011\uff084\u5206\uff09
\n\u4e0a\u8ff0\u4ee3\u7801\u6240\u5b58\u5728\u7684\u6f0f\u6d1e\u540d\u5b57\u662f\u4ec0\u4e48\uff0c\u9488\u5bf9\u672c\u4f8b\u4ee3\u7801\uff0c\u8bf7\u7b80\u8981\u8bf4\u660e\u5982\u4f55\u4fee\u6b63\u4e0a\u8ff0\u4ee3\u7801\u4ee5\u4fee\u8865\u6b21\u6f0f\u6d1e\u3002<\/p>\n

\u53c2\u8003\u7b54\u6848\uff1a<\/p>\n

\u3010\u95ee\u9898 1\u3011<\/p>\n

1\u3001\u5806\u6808\u30022\u3001PUSH\u548cPOP\u3002<\/p>\n

\u3010\u95ee\u98982\u3011<\/p>\n

\"2017\u5e74\u4e0a\u534a\u5e74\u4fe1\u606f\u5b89\u5168\u5de5\u7a0b\u5e08\u8003\u8bd5\u771f\u9898\u542b\u7b54\u6848\uff08\u4e0b\u5348\u9898\uff09<\/p>\n

\u3010\u95ee\u98983\u3011<\/p>\n

\u7528\u6237\u8f93\u51659\u4e2a\u5b57\u7b26\u7684\u5b57\u7b26\u4e32\uff0c\u4f7f\u5176\u6ee1\u8db3\u6761\u4ef6\uff1a\u524d8\u4e2a\u5b57\u7b26\u4e3a\u4efb\u610f\u5b57\u7b26\u548c\u7b2c9\u4e2a\u5b57\u7b26\u4e3a\u5927\u5199\u5b57\u6bcdA\uff1b<\/p>\n

\u3010\u95ee\u98984\u3011<\/p>\n

\u7f13\u51b2\u533a\u6ea2\u51fa\u3002\u4f7f\u7528\u5b89\u5168\u51fd\u6570strncpy\uff08\uff09\u6765\u4ee3\u66ffstrcpy\uff08\uff09\u51fd\u6570\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8bd5\u9898\u4e00 \u9605\u8bfb\u4e0b\u5217\u8bf4\u660e\uff0c\u56de\u7b54\u95ee\u9898 1 \u81f3\u95ee\u9898 3\uff0c\u5c06\u89e3\u7b54\u5199\u5728\u7b54\u9898\u7eb8\u7684\u5bf9 \u5e94\u680f\u5185\u3002 … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,65],"tags":[80],"class_list":["post-1047","post","type-post","status-publish","format-standard","hentry","category-6","category-65","tag-80"],"_links":{"self":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts\/1047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1047"}],"version-history":[{"count":1,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts\/1047\/revisions"}],"predecessor-version":[{"id":1048,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=\/wp\/v2\/posts\/1047\/revisions\/1048"}],"wp:attachment":[{"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jayjaydream.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}