{"published":"2019-04-24 03:13:54","version":"1.0","blog_url":"https://0xiso.hatenablog.com/","categories":["CTF"],"width":"100%","image_url":null,"author_name":"iso0","author_url":"https://blog.hatena.ne.jp/iso0/","title":"ASIS CTF Quals 2019 - A delicious soup Writeup","provider_name":"Hatena Blog","description":"\u6697\u53f7\u5316\u3055\u308c\u305fflag\u3067\u3042\u308bflag.enc\u3068flag\u3092\u6697\u53f7\u5316\u3059\u308bsimple_and_delicious.py \u304c\u4e0e\u3048\u3089\u308c\u308b\u3002 simple_and_delicious.py\u3067\u306f\u6b21\u306e\u3088\u3046\u306a\u51e6\u7406\u3092\u3057\u3066\u3044\u308b\u3002 \u5148\u982d\u306e\u6587\u5b57\u3092\u672b\u5c3e\u306b\u79fb\u52d5\uff08abcd -> bcda\uff09 \u6587\u5b57\u5217\u3092\u5947\u6570\u756a\u76ee\u306e\u6587\u5b57\u3068\u5076\u6570\u756a\u76ee\u306e\u6587\u5b57\u306b\u5206\u3051\u3001\u5947\u6570\u756a\u76ee\u3001\u5076\u6570\u756a\u76ee\u306e\u9806\u3067\u9023\u7d50\uff08bcda -> bdca\uff09 \u5148\u982d\u306e\u6587\u5b57\u3092\u672b\u5c3e\u306b\u79fb\u52d5\uff08bdca -> dcab\uff09 \u9577\u30557\u306e\u5909\u63db\u30c6\u30fc\u30d6\u30eb\u306b\u5f93\u3044\u6587\u5b57\u5217\u3092\u30b7\u30e3\u30c3\u30d5\u30eb\uff08\u30c6\u30fc\u30d6\u30eb\u304c[2, 3, 0, 1]\u306e\u5834\u5408\u3001dcab -> abdc\uff09 1.\u304b\u30894.\u30921337\u56de\u4ee5\u4e0b\u306e\u898f\u5b9a\u306e\u56de\u6570\u7e70\u308a\u8fd4\u3059 \u3053\u3053\u3067\u30014.\u30685.\u306f\u2026","type":"rich","provider_url":"https://hatena.blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2F0xiso.hatenablog.com%2Fentry%2F2019%2F04%2F24%2F031354\" title=\"ASIS CTF Quals 2019 - A delicious soup Writeup - 0xiso\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://0xiso.hatenablog.com/entry/2019/04/24/031354","blog_title":"0xiso\u2019s blog"}