{"id":3943,"date":"2012-02-24T18:56:07","date_gmt":"2012-02-24T09:56:07","guid":{"rendered":"http:\/\/mimumimu.net\/blog\/?p=3943"},"modified":"2012-04-21T18:30:09","modified_gmt":"2012-04-21T09:30:09","slug":"seccon-ctf-%e7%a6%8f%e5%b2%a1%e5%a4%a7%e4%bc%9a%e3%81%ab%e5%8f%82%e5%8a%a0%e3%81%97%e3%81%a6%e3%81%8d%e3%81%9f%e3%80%82","status":"publish","type":"post","link":"https:\/\/mimumimu.net\/blog\/2012\/02\/24\/seccon-ctf-%e7%a6%8f%e5%b2%a1%e5%a4%a7%e4%bc%9a%e3%81%ab%e5%8f%82%e5%8a%a0%e3%81%97%e3%81%a6%e3%81%8d%e3%81%9f%e3%80%82\/","title":{"rendered":"SECCON CTF \u798f\u5ca1\u5927\u4f1a\u306b\u53c2\u52a0\u3057\u3066\u304d\u305f\u3002"},"content":{"rendered":"

 <\/h3>\n

\uff3c\u3066\u304a\u304f\u308c\u305f\uff0f<\/h3>\n

 <\/p>\n

\"IMG_0847\"<\/a><\/p>\n

 <\/p>\n

\u3069\u3046\u3082\u3001\u4e45\u3057\u3076\u308a\u306b\u304a\u304b\u3057\u3044\u30c1\u30fc\u30e0\u3067\u304c\u3093\u3070\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n

\u3061\u3087\u3063\u3068\u8aac\u660e\u3057\u3066\u304a\u304f\u3068\u3001<\/p>\n

\n

CTF\u3068\u306f\u3001\u4e16\u754c\u5404\u5730\u3067\u958b\u50ac\u3055\u308c\u3066\u3044\u308b\u8457\u540d\u306a\u65d7\u53d6\u308a\u5408\u6226\u7af6\u6280\uff08Capture The Flag\uff09\u306e\u3053\u3068\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6280\u8853\u3092\u7af6\u3046\u30b3\u30f3\u30c6\u30b9\u30c8\u306e\u7dcf\u79f0\u3067\u3059\u3002<\/p>\n

http:\/\/www.seccon.jp\/<\/a> <\/p>\n<\/blockquote>\n

\u3068\u3044\u3046\u3053\u3068\u3002<\/p>\n

\u8981\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u65b9\u9762\u3092\u65e5\u672c\u3067\u3082\u4f38\u3070\u3057\u307e\u3057\u3087\u3046\uff01 \u3068\u3044\u3046\u3053\u3068\u3067\u958b\u50ac\u3055\u308c\u305f\u306e\u304c\u3001
\u4eca\u56de\u306e SECCON CTF \u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n

 <\/p>\n

\u30c1\u30fc\u30e0\u306e\u30e1\u30f3\u30d0\u306f\u3001\u3066\u304a\u304f\u308c\u306a\u3072\u3068\u3001\u30a4\u30b1\u30e1\u30f3\u306a\u3072\u3068\u3001\u304a\u8336\u304f\u307f\u62c5\u5f53 x2
<\/strike>\u308f\u3055\u304a\u3001\u307e\u3072\u308b\u3093\u3061\u3083\u3093\u3001\u304b\u30fc\u307f\u30fc\u3055\u3093\u3001\u79c1\u306e\uff14\u4eba\u7d44\u3067\u3059\u3002<\/p>\n

\u30c1\u30fc\u30e0\u540d\u306f\uff1a wasamusume and mi17u<\/p>\n

\u3053\u306e\u8a18\u4e8b\u306e\u57f7\u7b46\u6642\u70b9\u3067\u3001\u30c1\u30fc\u30e0\u30e1\u30f3\u30d0\u306e\u8a18\u4e8b\u3068\u3057\u3066\u306f\u3001 <\/p>\n

\u307e\u3072\u308b\u3093\u3061\u3083\u3093 : SECCON CTF \u4e5d\u5dde\u5730\u533a\u4e88\u9078  – \u304a\u3082\u3061\u3083\u7bb1
http:\/\/toooybooox.blogspot.com\/2012\/02\/seccon-ctf.html<\/a><\/p>\n

\u304b\u30fc\u307f\u30fc\u3055\u3093 : SECCON CTF \u798f\u5ca1\u5927\u4f1a\u306b\u53c2\u52a0\u3057\u3066\u304d\u305f – \u304b\u30fc\u307f\u30fc\u306e\u30c1\u30e9\u88cf
http:\/\/diary.carme-ln.net\/2012\/02\/22\/seccon-ctf-fukuoka\/<\/a><\/p>\n

\u308f\u3055\u304a\uff1a\u571f\u65e5\u6708\u307e\u3068\u3081
http:\/\/blog.twiwt.org\/e\/8a4267<\/a><\/p>\n

\u305f\u3076\u3093\u3001\u4f75\u305b\u3066\u8aad\u3093\u3067\u3044\u305f\u3060\u3051\u308b\u3068\u3001\u304a\u3082\u3057\u308d\u3044\u611f\u3058\u304c\u4f1d\u308f\u3063\u3066\u304d\u305d\u3046\u306a\u3002<\/p>\n

 <\/p>\n

\u7d50\u679c\u306f\u3001
http:\/\/www.seccon.jp\/2012\/02\/1seccon-ctf.html<\/a>
\u3053\u3053\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u7b2c4\u4f4d\u3002<\/p>\n

\u3066\u304a\u304f\u308c\u3066\u3044\u305f\u306e\u306b\u3001\u300c\u5b9f\u306f\u3066\u304a\u304f\u308c\u5ea6\u5408\u3044\u306f\u305d\u3053\u307e\u3067\u3072\u3069\u304f\u306a\u304b\u3063\u305f<\/u><\/strong>\u300d\u3068\u3044\u3046\u306e\u304c\u7d50\u679c\u3067\u3057\u305f\u3002<\/p>\n

\u3053\u306eCTF\u306f\u5b66\u751f\u5411\u3051\u306a\u306e\u3067\u3001\u5b66\u751f\u306e\u307f\u30e9\u30f3\u30ad\u30f3\u30b0\u306b\u4e26\u3079\u3089\u308c\u307e\u3059\u304c\u3001
\u793e\u4f1a\u4eba\u30c1\u30fc\u30e0\u304c\u3068\u3066\u3064\u3082\u306a\u304f\u5f37\u304b\u3063\u305f\u3067\u3059\u3002<\/p>\n

 <\/p>\n

\u81ea\u5206\u305f\u3061\u306e\u30c1\u30fc\u30e0\u306e\u7279\u5fb4\u3068\u3057\u3066\u306f\u3001
\u672c\u6765\u59a8\u5bb3\u306e\u305f\u3081\u306b\u6d41\u3055\u308c\u308b\u97f3\u697d\u3084\u30a2\u30ca\u30a6\u30f3\u30b9\u306b\u5168\u529b\u3067\u4e57\u308b\u3068\u3044\u3046\u3068\u3053\u308d\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n

\u3082\u3046\u305d\u308c\u3001\u666e\u901a\u306e\u4eba\u306a\u3089\u3070\u300c\u59a8\u5bb3\u3055\u308c\u3066\u3044\u308b\u300d\u3068\u8a00\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u304c\u3001
\u3080\u3057\u308d\u3053\u3063\u3061\u306e\u30c1\u30fc\u30e0\u306e\u5834\u5408\u3001\u3042\u3042\u3044\u3046\u97f3\u304c\u3042\u308c\u3070\u3042\u308b\u307b\u3069\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n

\u307b\u304b\u306e\u30c1\u30fc\u30e0\u306f\u7121\u97f3\u306a\u3089\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4e0a\u304c\u308a\u3001
\u3046\u3061\u306e\u30c1\u30fc\u30e0\u306f\u7121\u97f3\u3060\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4e0b\u304c\u308b\u3002<\/p>\n

\u3084\u3063\u3071\u308a\u3001\u3066\u304a\u304f\u308c\u306a\u3093\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n

 <\/p>\n

\u3068\u308a\u3042\u3048\u305a\u3001\u3082\u3063\u3066\u884c\u3063\u305f\u306e\u306f\u30ce\u30fc\u30c8PC\uff13\u53f0
<\/p>\n

\u307e\u3072\u308b\u3093\u3061\u3083\u3093\u7528 VAIO \u3068\u3001\u79c1\u7528VAIO \u3068 Mac<\/p>\n

\u6b21\u56de\u306f\u662f\u975e\u3068\u3082 VAIO 2\u53f0\u3067\u304a\u8a71\u304c\u3064\u304f\u3088\u3046\u306b\u69cb\u6210\u3057\u305f\u3044\u3082\u306e\u3067\u3059\u306d\u3002
\u3044\u3042\u3001Mac \u304c\u3081\u3061\u3083\u304f\u3061\u3083\u91cd\u304b\u3063\u305f OTL<\/p>\n

 <\/p>\n

\u30c1\u30fc\u30e0\u30e1\u30f3\u30d0\u3067\u304a\u98a8\u5442\u306b\u5165\u308a\u306b\u884c\u3063\u305f\u308a\u3001\u591c\u901a\u3057\u554f\u984c\u89e3\u304d\u7d9a\u3051\u308b\u3068\u304b\u3001<\/p>\n

\u8db3\u304f\u3059\u3050\u3063\u3066\u307f\u308b\u3068\u304b\u3002\u304a\u98a8\u5442\u3067\u3070\u3057\u3083\u3070\u3057\u3083\u3057\u3066\u307f\u305f\u308a\u3002<\/p>\n

\u307e\u30fc\u3001\u4e2d\u5b66\u751f\u306e\u4fee\u5b66\u65c5\u884c\u307f\u305f\u3044\u306a\u611f\u3058\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001
\u305d\u308c\u306f\u305d\u308c\u3067\u597d\u304d\u306a\u30ce\u30ea\u3060\u3063\u305f\u306e\u3067\u3088\u304b\u3063\u305f\u304b\u306a\u3068\u3002<\/p>\n

 <\/p>\n

\u6b21\u56de\u3082\u3053\u3046\u3044\u3046\u306e\u304c\u3042\u3063\u305f\u3089\u3001\u307e\u305f\u7a81\u6483\u3057\u305f\u3044\u306a\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\u4eca\u56de\u306eCTF\u3067\u306f\u3001
\u305d\u308c\u305e\u308c\u304c\u305d\u308c\u305e\u308c\u306e\u5229\u70b9\u3092\u751f\u304b\u3057\u3066\u30d9\u30b9\u30c8\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u51fa\u305b\u305f\u3093\u3058\u3083\u306a\u3044\u304b\u306a\u3068\u3002<\/p>\n

\u7d42\u308f\u3063\u305f\u5f8c\u306b\u307f\u3093\u306a\u3067\u306b\u3063\u3053\u306b\u3053\u3057\u3066\u308b\u306e\u304c\u4e00\u756a\u3044\u3044\u306a\u3041\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

 <\/p>\n

\u6700\u5f8c\u306b\u3002
\u516c\u958b\u3057\u3066\u3082\u554f\u984c\u306a\u3044\u3067\u3042\u308d\u3046\u7bc4\u56f2\u3067\u3001\u89e3\u3044\u305f\u554f\u984c\u3092\u3072\u3068\u3064\u3002<\/p>\n

https:\/\/gist.github.com\/1862598<\/a><\/p>\n

\n

2\u4ee5\u4e0a30\u4ee5\u4e0b\u306e\u7d20\u6570\u306f\u6b21\u306e10\u500b\u3067\u3059\u3002<\/p>\n

2 3 5 7 11 13 17 19 23 29<\/p>\n

\u3053\u308c\u3089\u306e\u7d20\u6570\u306e\u4e2d\u3067\u4e00\u756a\u591a\u304f\u51fa\u73fe\u3059\u308b\u6570\u5b57\u306f1\u3067\u30015\u500b\u51fa\u73fe\u3057\u307e\u3059\u30022\u756a\u76ee\u306b\u591a\u304f\u51fa\u73fe\u3059\u308b\u6570\u5b57\u306f2\u30683\u304c\u305d\u308c\u305e\u308c3\u500b\u305a\u3064\u51fa\u73fe\u3057\u307e\u3059\u3002<\/p>\n

2\u4ee5\u4e0a10000\u4ee5\u4e0b\u306e\u7d20\u6570\u306f1229\u500b\u3042\u308a\u3001\u305d\u308c\u3089\u306e\u7d20\u6570\u306e\u4e2d\u3067\u4e00\u756a\u591a\u304f\u51fa\u73fe\u3059\u308b\u6570\u5b57\u306e\u500b\u6570\u306f1\u306e681\u500b\u3067\u3059\u3002\u307e\u305f2\u756a\u76ee\u306f3\u306e677\u500b\u30013\u756a\u76ee\u306f7\u306e652\u500b\u3067\u3059\u3002<\/p>\n

2\u4ee5\u4e0a1\u5104\u4ee5\u4e0b\u306e\u7d20\u6570\u306f5761455\u500b\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u4e2d\u30673\u756a\u76ee\u306b\u591a\u304f\u51fa\u73fe\u3059\u308b\u6570\u5b57\u306e\u500b\u6570\u306f\u3044\u304f\u3064\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<\/blockquote>\n

\u79c1\u306f\u3053\u308c\u3092 C# \u3067\u7dcf\u5f53\u305f\u308a\u3067\u6c42\u3081\u307e\u3057\u305f\u3002<\/p>\n

github \u306b\u4e0a\u304c\u3063\u3066\u3044\u308b\u30b3\u30fc\u30c9\u3067\u306f\u3001\u65e2\u5b58\u306e\u30ea\u30b9\u30c8\u3092\u3082\u3063\u3066\u304d\u307e\u3057\u3087\u30fc\u306d \u3063\u3066\u3044\u3046\u5f62\u3089\u3057\u3044\u3002<\/p>\n

\n
using System;\r\nusing System.Collections.Generic;\r\nusing System.Linq;\r\nusing System.Text;\r\n\r\nclass Program\r\n{\r\n    static void Main(string[] args)\r\n    {\r\n        long[] counts = new long[10];\r\n\r\n        foreach (char c in Primes(100000000).SelectMany<int, char>(x => x.ToString().ToCharArray()))\r\n            counts[c - '0']++;\r\n\r\n        for (int i = 0; i < counts.Length; i++)\r\n            System.Console.WriteLine(\"\" + i + \" - \" + counts[i]);\r\n    }\r\n\r\n    static IEnumerable<int> Primes(int maxnum)\r\n    {\r\n        int[] primes = Enumerable.Range(0, maxnum + 1).ToArray();\r\n        primes[1] = -1;\r\n        int squareroot = (int)Math.Sqrt(maxnum);\r\n        for (int i = 2; i <= squareroot; i++)\r\n        {\r\n            if (primes[i] > 0)\r\n                for (int n = i * 2; n <= maxnum; n += i)\r\n                    primes[n] = -1;\r\n        }\r\n        return primes.Where(n => n > 0);\r\n    }\r\n}<\/pre>\n<\/div>\n
\u30a8\u30e9\u30c8\u30b9\u30c6\u30cd\u30b9\u306e\u3075\u308b\u3044\u3067\u6c42\u3081\u307e\u3057\u305f\u3002
\n  
http:\/\/gushwell.ifdef.jp\/etude\/PrimeNumber.html<\/a><\/p>\n
\u3088\u304f RSA \u6697\u53f7\u3068\u304b\u304c\u8a71\u984c\u306b\u4e0a\u308b\u3068\u304d\u306b\u51fa\u3066\u304f\u308b\u7528\u8a9e\u3067\u3059\u304c\u3002<\/p>\n
 <\/p>\n
\u3068\u308a\u3042\u3048\u305a\u3001\u5b9f\u884c\u3059\u308b\u3068\u3001
\n  
\"image\"<\/a><\/p>\n
\u3068\u3044\u3046\u3053\u3068\u3067\u3001\uff11\u5104\u307e\u3067\u306f\uff15\u79d2\u307b\u3069\u3067\u8a08\u7b97\u304c\u5b8c\u4e86\u3059\u308b\u306e\u3067\u3001
\n  
\u3042\u3068\u306f\u6570\u3048\u4e0a\u3052\u308b\u3060\u3051\u30fc\u3002<\/p>\n
\u3063\u3066\u3053\u3068\u3067\u3001\u4eca\u56de\u306e\u5834\u5408\u306e\u56de\u7b54\u306f\uff13\u3064\u3081\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u304b\u3089\u3001<\/p>\n
5443074<\/p>\n
\u3053\u308c\u304c\u7b54\u3048\u306b\u306a\u308b\u3068\u3044\u3046\u611f\u3058\u3067\u3059\u3002<\/p>\n
 <\/p>\n
\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u305f\u306e\u3057\u304b\u3063\u305f\u3067\u3059\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
  \uff3c\u3066\u304a\u304f\u308c\u305f\uff0f     \u3069\u3046\u3082\u3001\u4e45\u3057\u3076\u308a\u306b\u304a\u304b\u3057\u3044\u30c1\u30fc\u30e0\u3067\u304c\u3093\u3070\u3063\u3066\u304d\u307e\u3057\u305f\u3002 \u3061\u3087\u3063\u3068\u8aac\u660e\u3057\u3066\u304a\u304f\u3068\u3001 CTF\u3068\u306f\u3001\u4e16\u754c\u5404\u5730\u3067\u958b\u50ac\u3055\u308c\u3066\u3044\u308b\u8457\u540d\u306a\u65d7\u53d6\u308a\u5408\u6226\u7af6\u6280\uff08Capture The […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[21,22],"class_list":["post-3943","post","type-post","status-publish","format-standard","hentry","category-other","tag-seccon-ctf","tag-22"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/posts\/3943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/comments?post=3943"}],"version-history":[{"count":0,"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/posts\/3943\/revisions"}],"wp:attachment":[{"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/media?parent=3943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/categories?post=3943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mimumimu.net\/blog\/wp-json\/wp\/v2\/tags?post=3943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}