{"author_url":"https://blog.hatena.ne.jp/autotaker/","url":"https://autotaker.hatenablog.com/entry/2017/03/20/134846","description":"Japanese Version Task \u89e3\u6790 \u89e3\u6cd5 English Version Task Analysis Solution \u3053\u308c\u306f0CTF\u306eoneTimePad1\u3068\u3044\u3046\u554f\u984c\u306eWriteup\u3067\u3059\u3002 Japanese Version Task zip\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304f\u3068\u6697\u53f7\u5316\u30b9\u30af\u30ea\u30d7\u30c8oneTimePad.py\u3068\u6697\u53f7\u6587ciphertext\u304c\u3042\u308b\u3002 \u6697\u53f7\u5316\u306e\u4ed5\u7d44\u307f\u306f\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3067\\(GF(2^{256})\\)\u4e0a\u3067\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308b\u3002\\begin{align} C_1 &= M_1 + R_1 \\\\ C_2 &= M_2 + R_2 \\\\ C_3 &= M_3 + R_3 \\end{align}\u2026","image_url":null,"author_name":"autotaker","provider_name":"Hatena Blog","height":"190","blog_title":"autotaker's blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fautotaker.hatenablog.com%2Fentry%2F2017%2F03%2F20%2F134846\" title=\"0CTF Writeup: oneTimePad1 - autotaker&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","blog_url":"https://autotaker.hatenablog.com/","provider_url":"https://hatena.blog","categories":[],"width":"100%","version":"1.0","published":"2017-03-20 13:48:46","title":"0CTF Writeup: oneTimePad1"}