{"blog_url":"https://h-noson.hatenablog.jp/","title":"VolgaCTF 2017 Quals write up","blog_title":"h_noson\u306e\u65e5\u8a18","categories":["ctf"],"author_url":"https://blog.hatena.ne.jp/h_noson/","published":"2017-03-27 22:59:07","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fh-noson.hatenablog.jp%2Fentry%2F2017%2F03%2F27%2F225907\" title=\"VolgaCTF 2017 Quals write up - h_noson\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","description":"shpx\u3068\u3044\u3046\u30c1\u30fc\u30e0\u3092\u7d44\u307e\u305b\u3066\u3044\u305f\u3060\u3044\u3066\u304b\u3089\u521d\u3081\u3066\u306eCTF\u3002 700\u70b9\u3092\u53d6\u308a\u3001117\u4f4d\u3068\u3044\u3046\u7d50\u679c\u3067\u7d42\u308f\u308a\u307e\u3057\u305f\u3002 \u500b\u4eba\u3067\u306f150+50+200(\u5171\u540c)\u70b9\u3002\u5168\u4f53\u7684\u306b\u5168\u7136\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u7cbe\u9032\u304c\u5fc5\u8981\u3067\u3059\u3002 Write up VC A.png\u3068B.png\u3092\u91cd\u306d\u305f\u3089\u6587\u5b57\u304c\u898b\u3048\u305f\u306e\u3067\u305d\u308c\u3092\u8aad\u3080\u3060\u3051\u3067\u3057\u305f\u3002 \u81ea\u5206\u306f\u3053\u308c\u3092\u9811\u5f35\u3063\u3066\u8aad\u307f\u307e\u3057\u305f\u304c\u3001\u305d\u306e\u3042\u3068\u306b\u30c1\u30fc\u30e0\u306e\u65b9\u304c\u3044\u3044\u89e3\u6cd5\u3092\u6559\u3048\u3066\u304f\u308c\u307e\u3057\u305f\u3002 composite -compose difference A.png B.png diff.png PyCrypto \u5b9f\u9a13\u3057\u3066\u307f\u308b\u3068 flag:'AAAAAA',key:'ABCD' => '\\x00\\x03\\x0\u2026","author_name":"h_noson","url":"https://h-noson.hatenablog.jp/entry/2017/03/27/225907","provider_name":"Hatena Blog","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/h_noson/20170327/20170327225724.png","type":"rich","height":"190","version":"1.0"}