{"id":50,"date":"2022-05-13T15:12:58","date_gmt":"2022-05-13T07:12:58","guid":{"rendered":"http:\/\/162.14.82.114\/?p=50"},"modified":"2022-05-16T21:14:51","modified_gmt":"2022-05-16T13:14:51","slug":"%e6%94%bb%e9%98%b2%e4%b8%96%e7%95%8c%e6%96%b0%e6%89%8b%e4%b8%93%e5%8c%ba-crypto","status":"publish","type":"post","link":"http:\/\/162.14.82.114\/index.php\/50\/05\/13\/2022\/","title":{"rendered":"\u653b\u9632\u4e16\u754c\u65b0\u624b\u4e13\u533a\u2014\u2014CRYPTO"},"content":{"rendered":"

\u89e3\u7b54\u5bc6\u7801\u5b66\u9898\u76ee\u65f6\u6211\u4eec\u8981\u7528\u5230\u5f88\u591a\u7f51\u7ad9\uff08\u6709\u5927\u4f6c\u624b\u64b8\u4e5f\u53ef\u4ee5\uff09\uff0c\u53ef\u53c2\u8003ctf-wiki<\/a>\uff0cGitHub<\/a>\uff0cMax HackBar\u811a\u672c<\/a>\u4ee5\u53ca\u5f88\u591a\u5728\u7ebf\u7f51\u7ad9\u3002<\/p>\n

\"image-20220128205039871\"<\/div><\/p>\n

001 base64<\/h1>\n

\"image-20220128205105269\"<\/div><\/p>\n

\u4e00\u770b\u9898\u76ee\u5c31\u77e5\u9053\u8fd9\u9898\u548cbase64<\/code>\u89e3\u5bc6\u6709\u5173\u3002<\/p>\n

\n

\u4e0d\u6e05\u695a\u7684\u53ef\u4ee5\u770b\u5218\u5fd7\u519b<\/a>\u5e08\u5085\u7684\u77e5\u4e4e\u6587\u7ae0\uff1ahttps:\/\/zhuanlan.zhihu.com\/p\/339477329<\/a><\/p>\n<\/blockquote>\n

\u6253\u5f00\u9644\u4ef6\uff0c\u53ef\u4ee5\u770b\u5230\u662f\u4e00\u4e2atxt\u6587\u4ef6\uff0c\u5b83\u7684\u5185\u5bb9\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n

\n

Y3liZXJwZWFjZXtXZWxjb21lX3RvX25ld19Xb3JsZCF9<\/p>\n<\/blockquote>\n

\u6839\u636e\u9898\u76ee\u63d0\u793a\uff0c\u76f4\u63a5\u7528base64\u8fdb\u884c\u89e3\u7801\uff1a<\/p>\n

\"image-20220128205614674\"<\/div>
\n
\"image-20220128205749941\"<\/div>
\n
\"image-20220128210327311\"<\/div><\/p>\n

\u90fd\u53ef\u4ee5\u5f97\u5230\u6b63\u786e\u7684\u7b54\u6848\u3002\u4e0b\u9762\u7684\u9898\u76ee\u5c31\u4ee5\u4e00\u79cd\u65b9\u6cd5\u8fdb\u884c\u89e3\u7b54\u4e86\uff0c\u6bd5\u7adf\u6bcf\u4e00\u79cd\u65b9\u6cd5\u90fd\u5f88\u591a\u3002<\/p>\n

002 Caesar<\/h1>\n

\"image-20220128210624652\"<\/div><\/p>\n

\u9898\u76ee\u6807\u6ce8\u4e86\u8fd9\u662f\u4e2a\u51ef\u6492\u5bc6\u7801\u3002<\/p>\n

\n

\u5728\u65e9\u671f\uff0c\u51ef\u6492\u5bc6\u7801\uff08Caeser Cipher\uff09\u662f\u6307\u5c06\u5bc6\u6587\u5e73\u79fb\u4e09\u4f4d\uff0c\u540e\u6765\u7ecf\u8fc7\u63a8\u5e7f\uff0c\u5e73\u79fb\u4e2a\u6570\u6269\u5c55\u4e3a\u4efb\u610f\u4f4d\uff0c\u5373\u79fb\u4f4d\u5bc6\u7801\uff08Shift Cipher\uff09<\/p>\n

\u51ef\u6492\u5bc6\u7801\uff08Caesar\uff09\u52a0\u5bc6\u65f6\u4f1a\u5c06\u660e\u6587\u4e2d\u7684 \u6bcf\u4e2a\u5b57\u6bcd<\/strong> \u90fd\u6309\u7167\u5176\u5728\u5b57\u6bcd\u8868\u4e2d\u7684\u987a\u5e8f\u5411\u540e\uff08\u6216\u5411\u524d\uff09\u79fb\u52a8\u56fa\u5b9a\u6570\u76ee\uff08\u5faa\u73af\u79fb\u52a8<\/strong>\uff09\u4f5c\u4e3a\u5bc6\u6587\u3002\u4f8b\u5982\uff0c\u5f53\u504f\u79fb\u91cf\u662f\u5de6\u79fb 3 \u7684\u65f6\u5019\uff08\u89e3\u5bc6\u65f6\u7684\u5bc6\u94a5\u5c31\u662f 3\uff09\uff1a<\/p>\n

\u660e\u6587\u5b57\u6bcd\u8868\uff1aABCDEFGHIJKLMNOPQRSTUVWXYZ\n\u5bc6\u6587\u5b57\u6bcd\u8868\uff1aDEFGHIJKLMNOPQRSTUVWXYZABC<\/code><\/pre>\n
\u4f7f\u7528\u65f6\uff0c\u52a0\u5bc6\u8005\u67e5\u627e\u660e\u6587\u5b57\u6bcd\u8868\u4e2d\u9700\u8981\u52a0\u5bc6\u7684\u6d88\u606f\u4e2d\u7684\u6bcf\u4e00\u4e2a\u5b57\u6bcd\u6240\u5728\u4f4d\u7f6e\uff0c\u5e76\u4e14\u5199\u4e0b\u5bc6\u6587\u5b57\u6bcd\u8868\u4e2d\u5bf9\u5e94\u7684\u5b57\u6bcd\u3002\u9700\u8981\u89e3\u5bc6\u7684\u4eba\u5219\u6839\u636e\u4e8b\u5148\u5df2\u77e5\u7684\u5bc6\u94a5\u53cd\u8fc7\u6765\u64cd\u4f5c\uff0c\u5f97\u5230\u539f\u6765\u7684\u660e\u6587\u3002\u4f8b\u5982\uff1a<\/p>\n
\u660e\u6587\uff1aTHE QUICK BROWN FOX JUMPS OVER THE LAZY DOG\n\u5bc6\u6587\uff1aWKH TXLFN EURZQ IRA MXPSV RYHU WKH ODCB GRJ<\/code><\/pre>\n
\u8f6c\u81ealabster<\/a>\u5e08\u5085\u7684\u6587\u7ae0\u53e4\u5178\u5bc6\u7801-\u51ef\u6492\u5bc6\u7801Caeser<\/a><\/p>\n<\/blockquote>\n
\u6253\u5f00\u9644\u4ef6\uff0c\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n
oknqdbqmoq{kag_tmhq_xqmdzqp_omqemd_qzodkbfuaz}<\/code><\/pre>\n
\u4e0b\u9762\u8fdb\u884c\u89e3\u7b54\u3002<\/p>\n
\"image-20220128211226468\"<\/div><\/p>\n
\u5f53\u7136\uff0c\u5982\u679c\u81ea\u5df1\u63d0\u524d\u5df2\u7ecf\u5199\u597d\u4e86\u811a\u672c\uff0c\u76f4\u63a5\u8fd0\u884c\u4e5f\u53ef\u4ee5\u3002<\/p>\n
003 Morse<\/h1>\n
\"image-20220128211650410\"<\/div><\/p>\n
\u5f88\u663e\u7136\u5c31\u662f\u6469\u5c14\u65af\u5bc6\u7801\u4e86\uff1a\u6253\u5f00\u9644\u4ef6\u3002<\/p>\n
11 111 010 000 0 1010 111 100 0 00 000 000 111 00 10 1 0 010 0 000 1 00 10 110<\/code><\/pre>\n
\u8fd9\u5c31\u662f\u6700\u7b80\u5355\u7684\u6469\u5c14\u65af\u5bc6\u7801\u4e86\uff0c\u76f4\u63a5\u4f7f\u7528\u5de5\u5177\uff0c\u5148\u5c061<\/code>\u66ff\u6362\u6210.<\/code>\uff0c0<\/code>\u66ff\u6362\u6210-<\/code>\uff0c\u8fdb\u884c\u89e3\u7801\uff1a<\/p>\n
11 111 010 000 0 1010 111 100 0 00 000 000 111 00 10 1 0 010 0 000 1 00 10 110\n\u2014\u2014>.. ... -.- --- - .-.- ... .-- - -- --- --- ... -- .- . - -.- - --- . -- .- ..-\n\u2014\u2014>ISKOTSWTMOOSMAETKTOEMAU<\/code><\/pre>\n
\u611f\u89c9\u4e0d\u4e0d\u5bf9\uff0c\u53cd\u8fc7\u6765\u8bd5\u8bd5<\/p>\n
11 111 010 000 0 1010 111 100 0 00 000 000 111 00 10 1 0 010 0 000 1 00 10 110\n\u2014\u2014>-- --- .-. ... . -.-. --- -.. . .. ... ... --- .. -. - . .-. . ... - .. -. --.\n\u2014\u2014>MORSECODEISSOINTERESTING<\/code><\/pre>\n
\u554a\u8fd9\uff0c\u884c\u5427\uff0c\u7b54\u6848\u5c31\u662f\u8fd9\u4e2a\uff0c\u628a\u683c\u5f0f\u6539\u4e00\u4e0b\uff0c\u52a0\u4e0acyberspace{}<\/code>\uff0c\u63d0\u4ea4\uff0c\u6210\u529f\uff01<\/p>\n
\n
wp\u91ccZER0_Nu1L<\/code>\u5e08\u5085\u5bf9\u4e8e\u8fd9\u4e2a\u95ee\u9898\u7684\u601d\u8003\u4e5f\u5f88\u503c\u5f97\u6211\u4eec\u5b66\u4e60\uff1a<\/p>\n
Morse \u7f16\u7801\u80fd\u7528\u4e24\u4e2a\u7b26\u53f7\u5c31\u80fd\u8868\u793a26\u4e2a\u5b57\u6bcd\u548c\u5341\u4e2a\u6570\u5b57\uff0c\u5e76\u4e14\u4e0d\u4f1a\u4ea7\u751f\u6b67\u4e49\uff0c\u4e00\u5b9a\u6709\u5b83\u7684\u65b9\u6cd5\u3002\u7a0d\u5fae\u60f3\u4e00\u4e0b\uff0c\u5176\u5b9e\u5c31\u80fd\u60f3\u5230\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u5c31\u662f\u7528\u54c8\u592b\u66fc\u7f16\u7801\u3002 \u7528.<\/code>\u8868\u793a\u5de6\u5206\u652f\uff0c\u7528-<\/code>\u8868\u793a\u53f3\u5206\u652f\u3002 \u6839\u7ed3\u70b9\u6ca1\u6709\u6570\u636e\uff0c\u7b2c\u4e8c\u5c42\u5de6\u5b69\u5b50\u548c\u53f3\u5b69\u5b50\u5206\u522b\u662f.<\/code>\u548c-<\/code>. \u6709\uff1a$2^5-2<26+10<2^6-2$ . \u6240\u4ee5\u5bf9\u5e94\u7684\u6811\u7684\u6df1\u5ea6\u662f 5\uff0c\u4eb2\u6d4b\u6b63\u786e\uff08\u624b\u753b\uff09\u3002<\/p>\n<\/blockquote>\n
004 \u5e42\u6570\u52a0\u5bc6<\/h1>\n
\"image-20220128213256404\"<\/div><\/p>\n
\n
\u4e8c\u8fdb\u5236\u5e42\u6570\u52a0\u5bc6\u901a\u8fc7\u4e8c\u8fdb\u5236\u7684\u51e0\u6b21\u65b9\u8868\u793a\u5b57\u6bcd\u7684\u5e8f\u53f7\u6765\u5bf9\u4fe1\u606f\u52a0\u5bc6\u3002\u7531\u4e8c\u8fdb\u5236\u8f6c\u6362\u6210\u5341\u8fdb\u5236\u7684\u65f6\u5019\uff0c\u8fd8\u53ef\u4ee5\u8868\u793a\u62102\u7684N\u6b21\u65b9\u7684\u5f62\u5f0f\u3002<\/code>
\n\u4f8b\u5982\uff1a$15=2^0+2^1+2^2+2^3$
\n \u56e0\u6b64\u6211\u4eec\u79f0\u8fd9\u79cd\u52a0\u5bc6\u65b9\u6cd5\u4e3a\u201c\u4e8c\u8fdb\u5236\u201d\u7684\u5e42\u6570\u52a0\u5bc6\u3002<\/code><\/p>\n
\u8be6\u7ec6\u5185\u5bb9\u53ef\u4ee5\u53c2\u8003\u8fd9\u4f4d\u5e08\u5085\u7684\u6587\u7ae0\uff1ahttps:\/\/zhuanlan.zhihu.com\/p\/401814787<\/a><\/p>\n<\/blockquote>\n
\u6253\u5f00\u9644\u4ef6\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n
8842101220480224404014224202480122<\/code><\/pre>\n
\u5176\u5b9e\u5e42\u6570\u52a0\u5bc6\u53c8\u540d01248\u5bc6\u7801\u6216\u4e91\u5f71\u5bc6\u7801\u3002\u4e0a\u7f51\u5f88\u5bb9\u6613\u5c31\u80fd\u641c\u5230\u3002<\/p>\n
\n
\u4f5c\u8005\u5728\u4ed6\u7684github<\/a>\u91cc\u662f\u8fd9\u4e48\u63cf\u8ff0\u7684:<\/p>\n
\u3010\u4e91\u5f71\u5bc6\u7801\u3011\n\u6b64\u5bc6\u7801\u8fd0\u7528\u4e861248\u4ee3\u7801\uff0c\u56e0\u4e3a\u672c\u4eba\u624d\u758f\u5b66\u6d45\uff0c\u5c1a\u672a\u53d1\u73b0\u6709\u8fc7\u4f7f\u7528\u7684\u5148\u4f8b\uff0c\u56e0\u6b64\u6682\u5f52\u4e3a\u539f\u521b\u5bc6\u7801\uff0c\u82e5\u6709\u5bc6\u7801\u754c\u524d\u8f88\u8ba4\u4e3a\u4e0d\u59a5\uff0c\n\u8bf7\u6307\u51fa\u6b64\u5bc6\u7801\u6216\u7c7b\u4f3c\u5bc6\u7801\u7684\u666e\u904d\u4f7f\u7528\u5386\u53f2\u5e76\u9644\u5bc4\u4e00\u4efd\u5230\u6211\u7ad9\u5185\u90ae\u7bb1\uff0c\u6211\u5c06\u4ee5\u6700\u5feb\u901f\u5ea6\u6838\u67e5\u5e76\u6539\u6b63\u3002\u7531\u4e8e\u8fd9\u4e2a\u5bc6\u7801\uff0c\u6211\u548c\u7247\u98ce\u4e91\u5f71\u521d\u8bc6\uff0c\u4e3a\u4e86\u7eaa\u5ff5\uff0c\u5c06\u5176\u547d\u540d\u4e3a\u201c\u4e91\u5f71\u5bc6\u7801\u201d\uff0c\u539f\u6587\u8bf7\u89c1\u8c1c\u9898\u5927\u5168\u7cbe\u534e\u533a\u3002\n\u539f\u7406\u5f88\u7b80\u5355\uff0c\u6709\u4e861\uff0c2\uff0c4\uff0c8\u8fd9\u56db\u4e2a\u7b80\u5355\u7684\u6570\u5b57\uff0c\u4f60\u53ef\u4ee5\u4ee5\u52a0\u6cd5\u8868\u793a\u51fa0-9\u4efb\u4f55\u4e00\u4e2a\u6570\u5b57\uff0c\u4f8b\u59820=28\uff0c7=124\uff0c9=18\u3002\n\u8fd9\u6837\uff0c\u518d\u75281-26\u6765\u8868\u793aA-Z\uff0c\u5c31\u53ef\u4ee5\u7528\u4f5c\u5bc6\u7801\u4e86\u3002\n\u4e3a\u4e86\u4e0d\u81f3\u4e8e\u6df7\u4e71\uff0c\u6211\u4e2a\u4eba\u5f15\u5165\u4e86\u7b2c\u4e94\u4e2a\u6570\u5b570\uff0c\u6765\u7528\u4f5c\u95f4\u9694\uff0c\u4ee5\u907f\u514d\u7ffb\u8bd1\u9519\u8bef\uff0c\u6240\u4ee5\u8fd8\u53ef\u4ee5\u79f0\u201c01248\u5bc6\u7801\u201d\u3002<\/code><\/pre>\n<\/blockquote>\n
\u5f88\u5947\u5999\u7684\u4e00\u79cd\u60f3\u6cd5\uff0c\u6211\u4eec\u89e3\u9898\u77e5\u9053\u8fd9\u4e2a\u5bc6\u7801\u7684\u539f\u7406\u5c31\u884c\uff0c\u7136\u540e\u7ee7\u7eed\u4f7f\u7528\u5de5\u5177\uff08\u72d7\u5934\u4fdd\u547d\uff01\uff09<\/p>\n
\"image-20220128214943280\"<\/div><\/p>\n
\u683c\u5f0f\u52a0\u4e0acyberspace{}<\/code>\uff0c\u63d0\u4ea4\uff0c\u6210\u529f\uff01<\/p>\n
005 Railfence<\/h1>\n
\"image-20220128215057499\"<\/div><\/p>\n
\u6253\u5f00\u9644\u4ef6\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n
ccehgyaefnpeoobe{lcirg}epriec_ora_g<\/code><\/pre>\n
\u8fd9\u9053\u9898\u8003\u7684\u662f==\u6805\u680f\u5bc6\u7801==\uff0c==crypto-wiki==\u662f\u8fd9\u4e48\u63cf\u8ff0\u7684 <\/p>\n
\n
\u6240\u8c13\u6805\u680f\u5bc6\u7801\uff0c\u5c31\u662f\u5c06\u8981\u52a0\u5bc6\u7684\u660e\u6587\u5206\u4e3aN\u4e2a\u4e00\u7ec4\uff0c\u518d\u4ece\u6bcf\u7ec4\u7684\u9009\u51fa\u4e00\u4e2a\u5b57\u6bcd\u8fde\u8d77\u6765\uff0c\u5f62\u6210\u4e00\u6bb5\u65e0\u89c4\u5f8b\u7684\u5bc6\u6587\u3002<\/code><\/p>\n
\u6805\u680f\u5bc6\u7801\u5e76\u975e\u4e00\u79cd\u5f3a\u7684\u52a0\u5bc6\u6cd5\uff0c\u5176\u52a0\u5bc6\u539f\u7406\u9650\u5236\u4e86\u5bc6\u94a5\u7684\u6700\u9ad8\u6570\u91cf\u4e0d\u53ef\u80fd\u8d85\u8fc7\u660e\u6587\u5b57\u6bcd\u6570\uff0c\u800c\u5b9e\u9645\u52a0\u5bc6\u65f6\u5bc6\u94a5\u6570\u76ee\u66f4\u5c11\uff0c\u56e0\u6b64\u6709\u4e9b\u5bc6\u7801\u5206\u6790\u5458\u751a\u81f3\u80fd\u7528\u624b\u76f4\u63a5\u89e3\u51fa\u660e\u6587\u3002<\/code><\/p>\n<\/blockquote>\n
\u8fd9\u9053\u9898\u8003\u5bdf\u7684\u4e0d\u662f\u7b80\u5355\u7684\u6805\u680f\u5bc6\u7801\uff0c\u800c\u662f\u5b83\u7684\u53d8\u79cdwww\u578b\u6805\u680f\u5bc6\u7801\u3002<\/p>\n
\u4e00\u5f00\u59cb\u4f7f\u7528len=35<\/code>\u8fdb\u884c\u8bd5\u63a2\uff0c\u60e8\u906d\u5931\u8d25\u3002<\/p>\n
\n
WWW\u578b\u7684\u52a0\u5bc6\u5bc6\u94a5\u5c31\u4e0d\u53ea\u80fd\u662f\u5b57\u7b26\u4e32\u957f\u5ea6<\/a>\u7684\u56e0\u5b50\uff0c\u5c0f\u4e8e\u5176\u957f\u5ea6\u7684\u4efb\u4f55\u4e00\u4e2a\u6570\u90fd\u53ef\u80fd\u662f\u5176key\u503c\uff0c\u6240\u4ee5\u7b2c\u4e00\u6b65\u4e5f\u662f\u786e\u5b9a\u5bc6\u94a5\uff0c\u53ef\u4ee5\u4e00\u6b21\u6b21\u8bd5\u63a2\u3002<\/p>\n
\u53ef\u4ee5\u53c2\u8003\u5f71\u5b50019<\/a>\u5e08\u5085\u7684\u6587\u7ae0<\/a><\/p>\n<\/blockquote>\n
\u6211\u4eec\u8fd8\u662f\u4f7f\u7528\u5de5\u5177\u5427\uff01<\/del>\u6211\u4eec\u7f16\u5199\u5b8c\u7a0b\u5e8f<\/a>\u4ee5\u540e\u7528\u5de5\u5177\u7684\u5f62\u5f0f\u5c55\u73b0\u7ed3\u679c\u3002<\/p>\n
\"image-20220128215804566\"<\/div><\/p>\n
006 \u4e0d\u4ec5\u4ec5\u662fMorse<\/h1>\n
\"image-20220128220527216\"<\/div><\/p>\n
\u6253\u5f00\u9644\u4ef6\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n
--\/.-\/-.--\/..--.-\/-...\/.\/..--.-\/....\/.-\/...-\/.\/..--.-\/.-\/-.\/---\/-\/....\/.\/.-.\/..--.-\/-..\/.\/-.-.\/---\/-..\/.\/....\/....\/....\/....\/.-\/.-\/.-\/.-\/.-\/-...\/.-\/.-\/-...\/-...\/-...\/.-\/.-\/-...\/-...\/.-\/.-\/.-\/.-\/.-\/.-\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/-...\/.-\/.-\/.-\/.-\/.-\/.-\/.-\/-...\/-...\/.-\/-...\/.-\/.-\/.-\/-...\/-...\/.-\/.-\/.-\/-...\/-...\/.-\/.-\/-...\/.-\/.-\/.-\/.-\/-...\/.-\/-...\/.-\/.-\/-...\/.-\/.-\/.-\/-...\/-...\/.-\/-...\/.-\/.-\/.-\/-...\/.-\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/-...\/-...\/.-\/.-\/-...\/-...\/-...\/.-\/-...\/.-\/.-\/.-\/-...\/.-\/-...\/.-\/-...\/-...\/.-\/.-\/.-\/-...\/-...\/.-\/-...\/.-\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/.-\/.-\/.-\/-...\/-...\/.-\/-...\/-...\/.-\/.-\/-...\/-...\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/.-\/-...\/.-\/-...\/.-\/.-\/-...\/-...\/.-\/-...\/.-\/.-\/.-\/.-\/-...\/-...\/.-\/-...\/.-\/.-\/-...\/-...\/.-<\/code><\/pre>\n
\u4ed6\u8bf4\u4e0d\u6b62Morse\uff0c\u80af\u5b9a\u5305\u542bmorse\uff0c\u5148\u6469\u5c14\u65af\u89e3\u7801\uff0c\u5f97\u5230\uff1a<\/p>\n
MAY_BE_HAVE_ANOTHER_DECODEHHHH\nAAAAABAABBBAABBAAAAAAAABAABABAAAAAAABBABAAABBAAABBAABAAAABABAABAAABBABAAABAAABAABABBAABBBABAAABABABBAAABBABAAABAABAABAAAABBABBAABBAABAABAAABAABAABAABABAABBABAAAABBABAABBA<\/code><\/pre>\n
\u4ed6\u8bf4\u4e86\u8fd8\u6709\u5176\u4ed6\u7684\u89e3\u7801\u65b9\u5f0f\uff0c\u90a3\u4e48\u9488\u5bf9\u4e0b\u9762\u7684\u4e00\u5806AB\uff0c\u53ef\u4ee5\u5f88\u5bb9\u6613\u60f3\u5230\u57f9\u6839\u89e3\u5bc6<\/code>\u3002<\/p>\n
==\u767e\u5ea6\u767e\u79d1==\u91cc\u53ef\u4ee5\u67e5\u5230\uff1a<\/p>\n
\n
\u52a0\u5bc6<\/a>\u65f6\uff0c\u660e\u6587<\/a>\u4e2d\u7684\u6bcf\u4e2a\u5b57\u6bcd<\/a>\u90fd\u4f1a\u8f6c\u6362\u6210\u4e00\u7ec4\u4e94\u4e2a\u82f1\u6587\u5b57\u6bcd\u3002\u5176\u8f6c\u6362\u4f9d\u9760\u4e0b\u8868\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n
A\/a<\/th>\naaaaa<\/th>\nH\/h<\/th>\naabbb<\/th>\nO\/o<\/th>\nabbba<\/th>\nV\/v<\/th>\nbabab<\/th>\n<\/tr>\n<\/thead>\n
B\/b<\/td>\naaaab<\/td>\nI\/i<\/td>\nabaaa<\/td>\nP\/p<\/td>\nabbbb<\/td>\nW\/w<\/td>\nbabba<\/td>\n<\/tr>\n
C\/c<\/td>\naaaba<\/td>\nJ\/j<\/td>\nabaab<\/td>\nQ\/q<\/td>\nbaaaa<\/td>\nX\/x<\/td>\nbabbb<\/td>\n<\/tr>\n
D\/d<\/td>\naaabb<\/td>\nK\/k<\/td>\nababa<\/td>\nR\/r<\/td>\nbaaab<\/td>\nY\/y<\/td>\nbbaaa<\/td>\n<\/tr>\n
E\/e<\/td>\naabaa<\/td>\nL\/l<\/td>\nababb<\/td>\nS\/s<\/td>\nbaaba<\/td>\nZ\/z<\/td>\nbbaab<\/td>\n<\/tr>\n
F\/f<\/td>\naabab<\/td>\nM\/m<\/td>\nabbaa<\/td>\nT\/t<\/td>\nbaabb<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
G\/g<\/td>\naabba<\/td>\nN\/n<\/td>\nabbab<\/td>\nU\/u<\/td>\nbabaa<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u52a0\u5bc6\u8005\u9700\u4f7f\u7528\u4e24\u79cd\u4e0d\u540c\u5b57\u4f53<\/a>\uff0c\u5206\u522b\u4ee3\u8868A\u548cB\u3002\u51c6\u5907\u597d\u4e00\u7bc7\u5305\u542b\u76f8\u540cAB\u5b57\u6570\u7684\u5047\u4fe1\u606f\u540e\uff0c\u6309\u7167\u5bc6\u6587<\/a>\u683c\u5f0f\u5316\u5047\u4fe1\u606f\uff0c\u5373\u4f9d\u5bc6\u6587\u4e2d\u6bcf\u4e2a\u5b57\u6bcd\u662fA\u8fd8\u662fB\u5206\u522b\u5957\u7528\u4e24\u79cd\u5b57\u4f53\u3002<\/p>\n
\u89e3\u5bc6\u65f6\uff0c\u5c06\u4e0a\u8ff0\u65b9\u6cd5\u5012\u8f6c\u3002\u6240\u6709\u5b57\u4f53\u4e00\u8f6c\u56deA\uff0c\u5b57\u4f53\u4e8c\u8f6c\u56deB\uff0c\u4ee5\u540e\u518d\u6309\u4e0a\u8868\u62fc\u56de\u5b57\u6bcd<\/a>\u3002<\/p>\n
\u6cd5\u5170\u897f\u65af\u00b7\u57f9\u6839\u53e6\u5916\u51c6\u5907\u4e86\u4e00\u79cd\u65b9\u6cd5\uff0c\u5176\u5c06\u5927\u5c0f\u5199\u5206\u522b\u770b\u4f5cA\u4e0eB\uff0c\u53ef\u7528\u4e8e\u65e0\u6cd5\u4f7f\u7528\u4e0d\u540c\u5b57\u4f53\u7684\u573a\u5408\uff08\u4f8b\u5982\u53ea\u80fd\u5904\u7406\u7eaf\u6587\u672c\u65f6\uff09\u3002\u4f46\u8fd9\u6837\u6bd4\u8d77\u5b57\u4f53\u4e0d\u540c\u66f4\u5bb9\u6613\u88ab\u770b\u51fa\u6765\uff0c\u800c\u4e14\u548c\u8bed\u8a00\u5bf9\u5927\u5c0f\u5199\u7684\u8981\u6c42\u4e5f\u4e0d\u592a\u517c\u5bb9\u3002<\/p>\n
\u57f9\u6839\u5bc6\u7801\u672c\u8d28\u4e0a\u662f\u5c06\u4e8c\u8fdb\u5236\u4fe1\u606f\u901a\u8fc7\u6837\u5f0f\u7684\u533a\u522b\uff0c\u52a0\u5728\u4e86\u6b63\u5e38\u4e66\u5199\u4e4b\u4e0a\u3002\u57f9\u6839\u5bc6\u7801\u6240\u5305\u542b\u7684\u4fe1\u606f\u53ef\u4ee5\u548c\u7528\u4e8e\u627f\u8f7d\u5176\u7684\u6587\u7ae0\u5b8c\u5168\u65e0\u5173\u3002<\/p>\n<\/blockquote>\n
\u77e5\u9053\u5b83\u662f\u57f9\u6839\u5bc6\u7801\u76f4\u63a5\u4e22\u5230\u5de5\u5177\u91cc\u53bb\u5c31\u884c\u4e86\u3002<\/p>\n
\"image-20220128221107590\"<\/div><\/p>\n
007 \u6df7\u5408\u7f16\u7801<\/h1>\n
\"image-20220128221216804\"<\/div><\/p>\n
\u6253\u5f00\u9644\u4ef6\uff1a<\/p>\n
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<\/code><\/pre>\n
\u770b\u4e0a\u53bb\u662fbase64<\/code>\uff0c\u89e3\u7801\u4e00\u4e0b\uff1a<\/p>\n
\u250c\u2500\u2500(kali\u327fkali)-[~]\n\u2514\u2500$ echo 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|base64 -d\nLzExOS8xMDEvMTA4Lzk5LzExMS8xMDkvMTAxLzExNi8xMTEvOTcvMTE2LzExNi85Ny85OS8xMDcvOTcvMTEwLzEwMC8xMDAvMTAxLzEwMi8xMDEvMTEwLzk5LzEwMS8xMTkvMTExLzExNC8xMDgvMTAw        <\/code><\/pre>\n
\u6211\u4eec\u770b\u5230&#+\u6570\u5b57<\/code>\uff0c\u8fd9\u662fHtml\u5b9e\u4f53\u7f16\u7801\uff08&#\u6570\u5b57\u578b\uff09\uff0c\u89e3\u7801\uff1a<\/p>\n
\"image-20220128222951950\"<\/div><\/p>\n
\u5f97\u5230\uff1a<\/p>\n
LzExOS8xMDEvMTA4Lzk5LzExMS8xMDkvMTAxLzExNi8xMTEvOTcvMTE2LzExNi85Ny85OS8xMDcvOTcvMTEwLzEwMC8xMDAvMTAxLzEwMi8xMDEvMTEwLzk5LzEwMS8xMTkvMTExLzExNC8xMDgvMTAw<\/code><\/pre>\n
\u770b\u4e0a\u53bb\u8fd8\u662f\u5f88\u957f\uff0c\u7ee7\u7eed\u7528base64<\/code>\u89e3\u5bc6\u4e00\u4e0b\uff0c\u5f97\u5230\uff1a<\/p>\n
\/119\/101\/108\/99\/111\/109\/101\/116\/111\/97\/116\/116\/97\/99\/107\/97\/110\/100\/100\/101\/102\/101\/110\/99\/101\/119\/111\/114\/108\/100<\/code><\/pre>\n
\u53ef\u4ee5\u770b\u5230\u8fd9\u662f\u7eaf\u6570\u5b57\uff0c\u4e2d\u95f4\u4ee5\/<\/code>\u9694\u5f00\uff0c\u4e14\u90fd\u6ca1\u6709\u8d85\u8fc7127\uff0c\u5f88\u660e\u663e\u662fASCII\u7f16\u7801\uff0c\u5c06\/<\/code>\u66ff\u6362\u4e3a\u7a7a\u683c\uff0c\u89e3\u7801\u4e00\u4e0b\uff1a<\/p>\n
\"image-20220128223907853\"<\/div><\/p>\n
\u7136\u540e\u548c\u4e0a\u9762\u4e00\u6837\u52a0\u4e0acyberspace{}<\/code>\u63d0\u4ea4\u5373\u53ef\u3002<\/p>\n
008 easy_RSA<\/h1>\n
\"image-20220128224010396\"<\/div><\/p>\n
\u6253\u5f00\u9644\u4ef6\uff1a<\/p>\n
\n
\u5728\u4e00\u6b21RSA\u5bc6\u94a5\u5bf9\u751f\u6210\u4e2d\uff0c\u5047\u8bbep=473398607161\uff0cq=4511491\uff0ce=17\uff0c\u6c42\u89e3\u51fad\u3002<\/p>\n
\u6211\u4eec\u5148\u4e86\u89e3\u4e00\u4e0bRSA\u7b97\u6cd5\u539f\u7406<\/a>\uff1a<\/p>\n
RSA\u516c\u94a5\u52a0\u5bc6\u7b97\u6cd5\u662f1977\u5e74\u7531Ron Rivest\u3001Adi Shamirh\u548cLenAdleman\u5728\uff08\u7f8e\u56fd\u9ebb\u7701\u7406\u5de5\u5b66\u9662\uff09\u5f00\u53d1\u7684\u3002RSA\u53d6\u540d\u6765\u81ea\u5f00\u53d1\u4ed6\u4eec\u4e09\u8005\u7684\u540d\u5b57\u3002RSA\u662f\u76ee\u524d\u6700\u6709\u5f71\u54cd\u529b\u7684\u516c\u94a5\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5b83\u80fd\u591f\u62b5\u6297\u5230\u76ee\u524d\u4e3a\u6b62\u5df2\u77e5\u7684\u6240\u6709\u5bc6\u7801\u653b\u51fb\uff0c\u5df2\u88abISO\u63a8\u8350\u4e3a\u516c\u94a5\u6570\u636e\u52a0\u5bc6\u6807\u51c6\u3002RSA\u7b97\u6cd5\u57fa\u4e8e\u4e00\u4e2a\u5341\u5206\u7b80\u5355\u7684\u6570\u8bba\u4e8b\u5b9e\uff1a\u5c06\u4e24\u4e2a\u5927\u7d20\u6570\u76f8\u4e58\u5341\u5206\u5bb9\u6613\uff0c\u4f46\u90a3\u65f6\u60f3\u8981\u5bf9\u5176\u4e58\u79ef\u8fdb\u884c\u56e0\u5f0f\u5206\u89e3\u5374\u6781\u5176\u56f0\u96be\uff0c\u56e0\u6b64\u53ef\u4ee5\u5c06\u4e58\u79ef\u516c\u5f00\u4f5c\u4e3a\u52a0\u5bc6\u5bc6\u94a5\u3002<\/code><\/p>\n
\"img\"<\/div>\n<\/p><\/blockquote>\n
\u250c\u2500\u2500(kali\u327fkali)-[~]\n\u2514\u2500$ python3                        \nPython 3.9.8 (main, Nov  7 2021, 15:47:09) \n[GCC 11.2.0] on linux\nType "help", "copyright", "credits" or "license" for more information.\n>>> q=4511491\n>>> p=473398607161\n>>> e=17\n>>> pni=(p-1)*(q-1)\n>>> import libnum\n>>> d=libnum.invmod(e,pni)\n>>> d\n125631357777427553<\/code><\/pre>\n
\u90a3\u4e48flag\u5c31\u662fcyberspace{125631357777427553}<\/code><\/p>\n
009 easychallenge<\/h1>\n
\"image-20220129204246839\"<\/div><\/p>\n
\u4e0b\u8f7d\u9644\u4ef6\u53ef\u4ee5\u770b\u5230\u662f\u4e00\u4e2apyc<\/code>\u6587\u4ef6\uff0c\u7f51\u4e0a\u67e5\u627e\u4e00\u4e0b\u76f8\u5173\u5185\u5bb9\uff1a<\/p>\n
\n
pyc\u662f\u4e00\u79cd\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u662f\u7531Python\u6587\u4ef6\u7ecf\u8fc7\u7f16\u8bd1\u540e\u6240\u751f\u6210\u7684\u6587\u4ef6\uff0c\u5b83\u662f\u4e00\u79cdbyte  code\uff0cPython\u6587\u4ef6\u53d8\u6210pyc\u6587\u4ef6\u540e\uff0c\u52a0\u8f7d\u7684\u901f\u5ea6\u6709\u6240\u63d0\u9ad8\uff0c\u800c\u4e14pyc\u8fd8\u662f\u4e00\u79cd\u8de8\u5e73\u53f0\u7684\u5b57\u8282\u7801\uff0c\u7531python\u7684\u865a\u62df\u673a\u6765\u6267\u884c\u7684\uff0c\u5c31\u7c7b\u4f3c\u4e8eJAVA\u6216\u8005.NET\u7684\u865a\u62df\u673a\u7684\u6982\u5ff5\u3002pyc\u7684\u5185\u5bb9\u4e0epython\u7684\u7248\u672c\u662f\u76f8\u5173\u7684\uff0c\u4e0d\u540c\u7248\u672c\u7f16\u8bd1\u540e\u7684pyc\u6587\u4ef6\u662f\u4e0d\u540c\u7684\uff0c\u4f8b\u59822.5\u7248\u672c\u7f16\u8bd1\u7684\u662fpyc\u6587\u4ef6\uff0c\u800c2.4\u7248\u672c\u7f16\u8bd1\u7684python\u662f\u65e0\u6cd5\u6267\u884c\u7684<\/code><\/p>\n
py\u6587\u4ef6\u662f\u53ef\u4ee5\u76f4\u63a5\u770b\u5230\u6e90\u7801\u7684\uff0c\u4f46\u662f\u4e00\u822c\u60c5\u51b5\u4e0b\u5f00\u53d1\u51fa\u6765\u7684\u5546\u4e1a\u8f6f\u4ef6\u90fd\u4e0d\u53ef\u80fd\u76f4\u63a5\u628a\u6e90\u7801\u6cc4\u6f0f\u51fa\u53bb\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u9700\u8981\u628a\u5b83\u7f16\u8bd1\u6210pyc\u6587\u4ef6\u6765\u4fdd\u62a4\u6e90\u7801\u3002\u53e6\u5916pyc\u6587\u4ef6\u4e5f\u662f\u53ef\u4ee5\u53cd\u7f16\u8bd1\u7684<\/code><\/p>\n<\/blockquote>\n
\u53ef\u4ee5\u770b\u5230pyc\u6587\u4ef6\u662f\u9690\u853d\u7684\uff0c\u770b\u4e0d\u5230\u6e90\u7801\u7684\uff0c\u800c\u5b83\u8fd0\u884c\u7684\u7ed3\u679c\u662f\u8fd9\u6837\u7684\u3002<\/p>\n
\"image-20220129205110034\"<\/div><\/p>\n
\u4e0d\u7ba1\u8f93\u5165\u5565\u90fd\u4f1a\u77ac\u95f4\u6d88\u5931\u3002\u6211\u4eec\u53ef\u4ee5\u8bd5\u7740\u53cd\u7f16\u8bd1\u4e00\u4e0b\u67e5\u770b\u4e00\u4e0b\u6e90\u7801\uff0c\u641c\u4e00\u4e0b\u76f8\u5173\u5de5\u5177\uff0c\u627e\u5230\u4e86\u4e00\u4e2a\u53ea\u80fd\u8fd0\u884c\u5728 python2.7<\/code>\u4e0b\u7684\u5e93uncompyle<\/code>\u3002<\/p>\n
\u6211\u76f4\u63a5\u7528\u6700\u65b0\u7248\u7684python\u8fdb\u884c\u4e86\uff0c\u7ed3\u679c<\/p>\n
\u250c\u2500\u2500(kali\u327fkali)-[~]\n\u2514\u2500$ uncompyle6 1.pyc\nI don't know about Python version '3.9.8' yet.\nPython versions 3.9 and greater are not supported.\nI don't know about Python version '3.9.8' yet.\nPython versions 3.9 and greater are not supported.\nI don't know about Python version '3.9.8' yet.\nPython versions 3.9 and greater are not supported.\nI don't know about Python version '3.9.8' yet.\nPython versions 3.9 and greater are not supported.\nI don't know about Python version '3.9.8' yet.\nPython versions 3.9 and greater are not supported.\nI don't know about Python version '3.9.8' yet.\nPython versions 3.9 and greater are not supported.\nTraceback (most recent call last):\n  File "\/usr\/local\/bin\/uncompyle6", line 33, in <module>\n    sys.exit(load_entry_point('uncompyle6==3.9.0a1', 'console_scripts', 'uncompyle6')())\n  File "\/usr\/local\/bin\/uncompyle6", line 25, in importlib_load_entry_point\n    return next(matches).load()\n  File "\/usr\/lib\/python3.9\/importlib\/metadata.py", line 77, in load\n    module = import_module(match.group('module'))\n  File "\/usr\/lib\/python3.9\/importlib\/__init__.py", line 127, in import_module\n    return _bootstrap._gcd_import(name[level:], package, level)\n  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import\n  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load\n  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked\n  File "<frozen importlib._bootstrap>", line 664, in _load_unlocked\n  File "<frozen importlib._bootstrap>", line 627, in _load_backward_compatible\n  File "<frozen zipimport>", line 259, in load_module\n  File "\/usr\/local\/lib\/python3.9\/dist-packages\/uncompyle6-3.9.0a1-py3.9.egg\/uncompyle6\/bin\/uncompile.py", line 65, in <module>\n  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load\n  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked\n  File "<frozen importlib._bootstrap>", line 664, in _load_unlocked\n  File "<frozen importlib._bootstrap>", line 627, in _load_backward_compatible\n  File "<frozen zipimport>", line 259, in load_module\n  File "\/usr\/local\/lib\/python3.9\/dist-packages\/uncompyle6-3.9.0a1-py3.9.egg\/uncompyle6\/verify.py", line 24, in <module>\n  File "\/usr\/local\/lib\/python3.9\/dist-packages\/xdis-6.0.3-py3.9.egg\/xdis\/std.py", line 236, in <module>\n    _std_api = make_std_api()\n  File "\/usr\/local\/lib\/python3.9\/dist-packages\/xdis-6.0.3-py3.9.egg\/xdis\/std.py", line 233, in make_std_api\n    return _StdApi(python_version, variant)\n  File "\/usr\/local\/lib\/python3.9\/dist-packages\/xdis-6.0.3-py3.9.egg\/xdis\/std.py", line 78, in __init__\n    self.opc = opc = get_opcode_module(python_version, variant)\n  File "\/usr\/local\/lib\/python3.9\/dist-packages\/xdis-6.0.3-py3.9.egg\/xdis\/op_imports.py", line 180, in get_opcode_module\n    return op_imports[canonic_python_version[vers_str]]\nKeyError: '3.9.8'<\/code><\/pre>\n
\u6211\u4e00\u5f00\u59cb\u662f\u60f3\u7ba1\u7406python\u5e93\uff0c\u5c06 python3.9 \u7684\u7248\u672c\u8f6c\u5316\u4e3a python2.7<\/a> \u3002\u6700\u540e\u518d\u8fd0\u884c\u5e93\uff0c\u7ed3\u679c\uff0c\u8fd8\u662f\u8fd4\u56de\u76f8\u540c\u7684\u62a5\u9519\uff0c\u603b\u4e4b\u641e\u4e86\u5f88\u957f\u65f6\u95f4\u90fd\u6ca1\u6709\u89e3\u51b3\uff0c\u6240\u4ee5\u6211\u6362\u4e86\u4e2apython\u7248\u672c\u662f3.8<\/code>\u7684\u865a\u62df\u673a\u91cd\u65b0\u5b89\u88c5\u7b2c\u4e09\u65b9\u5e93\uff0c\u7136\u540e\u5c31\u987a\u5229\u5f97\u5230\u4e86\u53cd\u7f16\u8bd1\u4ee3\u7801:<\/p>\n
# uncompyle6 version 3.8.0\n# Python bytecode 2.7 (62211)\n# Decompiled from: Python 3.8.10 (default, Nov 26 2021, 20:14:08) \n# [GCC 9.3.0]\n# Embedded file name: ans.py\n# Compiled at: 2018-08-09 11:29:44\nimport base64\ndef encode1(ans):\n    s = ''\n    for i in ans:\n        x = ord(i) ^ 36\n        x = x + 25\n        s += chr(x)\n    return s\ndef encode2(ans):\n    s = ''\n    for i in ans:\n        x = ord(i) + 36\n        x = x ^ 36\n        s += chr(x)\n    return s\ndef encode3(ans):\n    return base64.b32encode(ans)\nflag = ' '\nprint 'Please Input your flag:'\nflag = raw_input()\nfinal = 'UC7KOWVXWVNKNIC2XCXKHKK2W5NLBKNOUOSK3LNNVWW3E==='\nif encode3(encode2(encode1(flag))) == final:\n    print 'correct'\nelse:\n    print 'wrong'\n# okay decompiling 1.pyc<\/code><\/pre>\n
\u89c2\u5bdf\u4ee3\u7801\u53ef\u4ee5\u53d1\u73b0\uff0cUC7KOWVXWVNKNIC2XCXKHKK2W5NLBKNOUOSK3LNNVWW3E===<\/code>\u662f\u4e00\u6bb5base32\u4ee3\u7801\uff0c\u662f\u7ecf\u8fc7\u4e86\u4e09\u6b21encode\u6700\u7ec8\u5f97\u5230\u7684\u7ed3\u679c\uff0c\u6309\u7167\u4ed6\u7684\u8fc7\u7a0b\u53d1\u8fc7\u6765\u89e3\u7801\u4e00\u4e0b\u5c31\u5f97\u5230\u4e86flag<\/p>\n
import base64\nf='UC7KOWVXWVNKNIC2XCXKHKK2W5NLBKNOUOSK3LNNVWW3E==='\ns=base64.b32decode(f)\nprint(''.join(chr((((i^36)-36)-25)^36) for i in s))<\/code><\/pre>\n
\u6216\u8005\u6309\u7167xctf-wp<\/code>\u7ed9\u51fa\u7684<\/p>\n
import base64\ns="UC7KOWVXWVNKNIC2XCXKHKK2W5NLBKNOUOSK3LNNVWW3E==="\ns=base64.b32decode(s)\nm = ''\nfor i in s:\n   x = ord(i) ^ 36\n   x = x - 36\n   m+= chr(x)\nh = ''\nfor i in m:\n   x = ord(i) - 25\n   x = x ^ 36\n   h+= chr(x)\nprint h<\/code><\/pre>\n
\"image-20220131195917853\"<\/div> <\/p>\n
\u5f97\u5230flag\u3002<\/p>\n
010 \u8f6c\u8f6e\u673a\u52a0\u5bc6<\/h1>\n
\"image-20220131233436273\"<\/div><\/p>\n
\n
\u5148\u4eceblock2016<\/a>\u4e86\u89e3\u4e00\u4e0b\uff1a<\/p>\n
\u8f6c\u8f6e\u673a\u662f\u53e4\u5178\u52a0\u5bc6\u65b9\u6cd5\u7684\u96c6\u5927\u6210\u8005\uff0c\u4e8c\u6218\u65f6\u8f74\u5fc3\u56fd\u666e\u904d\u5e94\u7528\u4e86\u8be5\u6280\u672f\uff0c\u53ef\u60dc\u60e8\u906d\u76df\u519b\u653b\u7834\uff0c\u5fb7\u65e5\u8fd8\u8499\u5728\u9f13\u91cc\uff0c\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u6539\u53d8\u4e86\u6700\u7ec8\u7684\u6218\u5c40\u3002<\/p>\n
\u3000\u3000\u8f6c\u8f6e\u673a\u7684\u539f\u7406\u6982\u62ec\u8d77\u6765\u5c31\u662f\u5faa\u73af\u7f6e\u6362\u7684\u591a\u8868\u4ee3\u6362\u6280\u672f\uff0c\u5c24\u5176\u662f\u591a\u7b52\u8f6c\u8f6e\u673a\uff0c\u53ef\u91cd\u590d\u4f7f\u7528\u6570\u4ee5\u4e07\u8ba1\u7684\u5b57\u6bcd\u66ff\u6362\u8868\u3002<\/p>\n
\u3000\u3000\u4ee5\u4e09\u7b52\u8f6c\u8f6e\u673a\u4e3a\u4f8b\uff1a<\/p>\n
\u3000\u3000
\"img\"<\/div><\/p>\n
\u3000\u3000\u3000\u3000\u6709\u4e09\u4e2a\u53ef\u4ee5\u72ec\u7acb\u65cb\u8f6c\u7684\u5706\u7b52\uff0c\u6bcf\u4e2a\u5706\u7b52\u5185\u90e8\u670926\u4e2a\u8f93\u5165\u5f15\u811a\u548c26\u4e2a\u8f93\u51fa\u5f15\u811a\uff0c\u5185\u90e8\u8fde\u7ebf\u4f7f\u5f97\u8f93\u5165\u4e0e\u8f93\u51fa\u552f\u4e00\u8fde\u63a5\u3002<\/p>\n
\u3000\u3000\u3000\u3000\u6bcf\u6309\u4e00\u4e0b\u8f93\u5165\u952e\uff08\u65cb\u8f6c\u952e\uff09\uff0c\u5feb\u901f\u8f6c\u5b50\u65cb\u8f6c\u4e00\u4e2a\u5f15\u811a\uff0c\u5f53\u5feb\u901f\u8f6c\u5b50\u8f6c\u6ee1\u4e00\u8f6e\uff08\u5faa\u73af\u5f52\u4f4d\uff09\u65f6\uff0c\u5e26\u52a8\u4e2d\u901f\u8f6c\u5b50\u65cb\u8f6c\u4e00\u4e2a\u5f15\u811a\uff0c\u4ee5\u6b64\u7c7b\u63a8\uff0c\u7c7b\u4f3c\u949f\u8868\u7684\u79d2\u5206\u65f6\u3002<\/p>\n
\u3000\u3000\u3000\u3000\u4eca\u5929\uff0c\u8f6c\u8f6e\u673a\u7684\u610f\u4e49\u5728\u4e8e\u5b83\u66fe\u7ecf\u7ed9\u76ee\u524d\u6700\u5e7f\u6cdb\u4f7f\u7528\u7684\u5bc6\u7801--\u6570\u636e\u52a0\u5bc6\u6807\u51c6DES\u6307\u660e\u4e86\u65b9\u5411\u3002<\/p>\n<\/blockquote>\n
\u6253\u5f00\u9644\u4ef6\u4ee5\u540e\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n
1:  < ZWAXJGDLUBVIQHKYPNTCRMOSFE <\n2:  < KPBELNACZDTRXMJQOYHGVSFUWI <\n3:  < BDMAIZVRNSJUWFHTEQGYXPLOCK <\n4:  < RPLNDVHGFCUKTEBSXQYIZMJWAO <\n5:  < IHFRLABEUOTSGJVDKCPMNZQWXY <\n6:  < AMKGHIWPNYCJBFZDRUSLOQXVET <\n7:  < GWTHSPYBXIZULVKMRAFDCEONJQ <\n8:  < NOZUTWDCVRJLXKISEFAPMYGHBQ <\n9:  < XPLTDSRFHENYVUBMCQWAOIKZGJ <\n10: < UDNAJFBOWTGVRSCZQKELMXYIHP <\n11\uff1a < MNBVCXZQWERTPOIUYALSKDJFHG <\n12\uff1a < LVNCMXZPQOWEIURYTASBKJDFHG <\n13\uff1a < JZQAWSXCDERFVBGTYHNUMKILOP <\n\n\u5bc6\u94a5\u4e3a\uff1a2,3,7,5,13,12,9,1,8,10,4,11,6\n\u5bc6\u6587\u4e3a\uff1aNFQKSEVOQOFNP<\/code><\/pre>\n
\u4e86\u89e3\u52a0\u5bc6\u539f\u7406\u4ee5\u540e\u7f16\u5199\u811a\u672c\u6c42\u89e3\u5373\u53ef\uff1a\uff08\u522b\u7684\u5e08\u5085\u7684wp\uff09<\/p>\n
import re\nsss = '1: < ZWAXJGDLUBVIQHKYPNTCRMOSFE < 2: < KPBELNACZDTRXMJQOYHGVSFUWI < 3: < BDMAIZVRNSJUWFHTEQGYXPLOCK < 4: < RPLNDVHGFCUKTEBSXQYIZMJWAO < 5: < IHFRLABEUOTSGJVDKCPMNZQWXY < 6: < AMKGHIWPNYCJBFZDRUSLOQXVET < 7: < GWTHSPYBXIZULVKMRAFDCEONJQ < 8: < NOZUTWDCVRJLXKISEFAPMYGHBQ < 9: < XPLTDSRFHENYVUBMCQWAOIKZGJ < 10: < UDNAJFBOWTGVRSCZQKELMXYIHP < 11 < MNBVCXZQWERTPOIUYALSKDJFHG < 12 < LVNCMXZPQOWEIURYTASBKJDFHG < 13 < JZQAWSXCDERFVBGTYHNUMKILOP <'\nm = 'NFQKSEVOQOFNP'\n# \u5c06sss\u8f6c\u5316\u4e3a\u5217\u8868\u5f62\u5f0f\ncontent=re.findall(r'< (.*?) <',sss,re.S)\n# re.S:DOTALL\uff0c\u6b64\u6a21\u5f0f\u4e0b\uff0c"."\u7684\u5339\u914d\u4e0d\u53d7\u9650\u5236\uff0c\u53ef\u5339\u914d\u4efb\u4f55\u5b57\u7b26\uff0c\u5305\u62ec\u6362\u884c\u7b26\niv=[2,3,7,5,13,12,9,1,8,10,4,11,6]\nprint(content)\nvvv=[]\nfor i in range(13):\n    index=content[iv[i]-1].index(m[i])\n    vvv.append(index)\nprint(vvv)\n\nfor i in range(0,26):\n    flag=""\n    for j in range(13):\n        flag += content[iv[j]-1][(vvv[j]+i)%26]\n    print(flag.lower())<\/code><\/pre>\n
\u77e5\u9053\u539f\u7406\u76f4\u63a5\u624b\u6495\u5176\u5b9e\u4e5f\u662f\u6ca1\u6bdb\u75c5\u7684\u3002<\/p>\n
\u624b\u52a8\u8f6c\u4e00\u4e0b\uff1a\nNACZDTRXMJQOYHGVSFUWIKPBEL\nFHTEQGYXPLOCKBDMAIZVRNSJUW\nQGWTHSPYBXIZULVKMRAFDCEONJ\nKCPMNZQWXYIHFRLABEUOTSGJVD\nSXCDERFVBGTYHNUMKILOPJZQAW\nEIURYTASBKJDFHGLVNCMXZPQOW\nVUBMCQWAOIKZGJXPLTDSRFHENY\nOSFEZWAXJGDLUBVIQHKYPNTCRM\nQNOZUTWDCVRJLXKISEFAPMYGHB\nOWTGVRSCZQKELMXYIHPUDNAJFB\nFCUKTEBSXQYIZMJWAORPLNDVHG\nNBVCXZQWERTPOIUYALSKDJFHGM\nPNYCJBFZDRUSLOQXVETAMKGHIW<\/code><\/pre>\n
\u5728\u7b2c 17 \u5217\u53d1\u73b0\u6709\u8bed\u4e49\u7684\u82f1\u6587\uff1aFIREINTHEHOLE<\/code>
\n==cyberpeaceP{fireinthehole}==<\/p>\n
011 Normal_RSA<\/h1>\n
\"image-20220202204621039\"<\/div><\/p>\n
\u6253\u5f00\u9644\u4ef6\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n
\"image-20220202204817031\"<\/div><\/p>\n
\u8fd9\u4e2a\u7c7b\u578b\u91cc\u53ef\u4ee5\u770b\u5230flag.enc<\/code>\u662f\u4e00\u4e2awireshark\u7684\u6587\u4ef6\uff0c\u90a3\u4e48\u6253\u5f00\u770b\u770b\uff1a<\/p>\n
\"image-20220206141410752\"<\/div><\/p>\n
\u8fd9\u4e48\u770b\u8fd9\u4e2a\u6587\u4ef6\u5c31\u4e0d\u662fwireshark\u7684\u6d41\u91cf\u5305\uff0c\u4e0a\u7f51\u67e5\u627e\u4e00\u4e0b\uff1a<\/p>\n
\"image-20220206141651622\"<\/div><\/p>\n
\u8d8a\u770b\u8d8a\u79bb\u8c31\uff0c\u7b97\u4e86\uff0c\u8fd8\u662f\u76f4\u63a5\u770b\u5e08\u5085\u4eec\u7684wp\u5427\uff1a<\/p>\n
\n
flag.enc<\/code> \u770b\u540e\u7f00enc\uff0c\u5206\u6790\u662f\u4e00\u4e2a\u901a\u8fc7openssl\u52a0\u5bc6\u540e\u751f\u6210\u7684\u6587\u4ef6<\/p>\n
pubkey.pem<\/code> \u5e94\u8be5\u662f\u4e00\u4e2a\u516c\u94a5\u4fe1\u606f\u6587\u4ef6<\/p>\n<\/blockquote>\n
\u5b98\u65b9wp\u91cc\u7528\u5230\u4e86CTF-RSA-tool<\/code>\u7136\u540e\u6211\u8fd9\u8fb9\u5c31\u5f00\u59cb\u5012\u817eCTF-RSA-tool<\/code>\uff0c\u7ecf\u8fc7\u4e86\u6211\u4e0d\u61c8\u52aa\u529b\uff0c\u7ec8\u4e8e\u8fd8\u662f\u51b3\u5b9a\u6362\u4e00\u4e2a\u5de5\u5177\uff01\uff08\u8fd9\u4e2a\u5de5\u5177\u7528python2\u6253\u5f00\u5c11\u4e86\u5e93\uff0c\u6211\u7ed9python2\u88c5\u4e86\u4e00\u4e2apip\uff0c\u7136\u5e76\u5375\uff0cpython3\u6253\u5f00\u62a5\u9519\uff0c\u53ef\u6076\uff09<\/p>\n
\u90a3\u4e48\u53ea\u597d\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u6309\u7167\u4e0a\u9762\u5f97\u5230\u7684\u5185\u5bb9\u6765\u7ee7\u7eed\u89e3\u5bc6\uff0cflag.enc<\/code>\u662fopenssl\u52a0\u5bc6\u5f97\u5230\u7684\u4e1c\u897f\uff0ckali\u91cc\u9762\u6709\u8fd9\u4e2a\uff0c\u6211\u4eec\u76f4\u63a5\u89e3\u5bc6\uff1a<\/p>\n
\u250c\u2500\u2500(kali\u327fkali)-[~]\n\u2514\u2500$ openssl\nOpenSSL> rsa -pubin -text -modulus -in warmup -in pubkey.pem\nRSA Public-Key: (256 bit)\nModulus:\n    00:c2:63:6a:e5:c3:d8:e4:3f:fb:97:ab:09:02:8f:\n    1a:ac:6c:0b:f6:cd:3d:70:eb:ca:28:1b:ff:e9:7f:\n    be:30:dd\nExponent: 65537 (0x10001)\nModulus=C2636AE5C3D8E43FFB97AB09028F1AAC6C0BF6CD3D70EBCA281BFFE97FBE30DD\nwriting RSA key\n-----BEGIN PUBLIC KEY-----\nMDwwDQYJKoZIhvcNAQEBBQADKwAwKAIhAMJjauXD2OQ\/+5erCQKPGqxsC\/bNPXDr\nyigb\/+l\/vjDdAgMBAAE=\n-----END PUBLIC KEY-----<\/code><\/pre>\n
\u5148\u5c06\u6a21\u6570\u8f6c\u5316\u621010\u8fdb\u5236\uff0c\u7136\u540e\u501f\u7528\u5728\u7ebf\u8d28\u56e0\u6570\u5206\u89e3\u7f51\u7ad9<\/a>\u5206\u89e3\u4e00\u4e0b\uff1a<\/p>\n
<img src="https:\/\/pic-for-be.oss-cn-hangzhou.aliyuncs.com\/img\/202205131510421.png"<\/a>; alt="image-20220207102812844" style="zoom:50%;" \/><\/p>\n
\u90a3\u4e48\u53ef\u4ee5\u5f97\u5230\uff1a<\/p>\n