{"categories":["CTF"],"blog_url":"https://blog.akiym.com/","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.akiym.com%2Fentry%2F2014%2F01%2F16%2F111012\" title=\"hack you 2014 - Crypto writeup - \u30a2\u30ea\" 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","author_name":"akiym","author_url":"https://blog.hatena.ne.jp/akiym/","height":"190","blog_title":"\u30a2\u30ea","version":"1.0","width":"100%","type":"rich","published":"2014-01-16 11:10:12","description":"Scoreboard :: hack you 2014 \u500b\u4eba\u6226\u3067\u300147\u4f4d\u3002\u307e\u3060\u307e\u3060\u7cbe\u9032\u304c\u8db3\u308a\u306a\u3044 :) Crypto\u306f\u3059\u3079\u3066\u89e3\u3051\u305f\u306e\u3067\u3001writeup\u3092\u6b8b\u3057\u3066\u304a\u304f\u3002 Crypto 100: Easy one msg002.enc\u3092decrypt\u3059\u308b\u554f\u984c\u3002 \u4e0e\u3048\u3089\u308c\u3066\u3044\u308bmsg001\u3068msg001.enc\u3092XOR\u3059\u308b\u3068key\u304c\u51fa\u3066\u304f\u308b\u3002\u3042\u3068\u306f\u305d\u306ekey\u3092\u4f7f\u3063\u3066decrypt\u3059\u308b\u3060\u3051\u3002 #include <stdlib.h> #include <stdio.h> #include <string.h> int main(int argc, char **argv) { if (argc != 3)\u2026","url":"https://blog.akiym.com/entry/2014/01/16/111012","provider_name":"Hatena Blog","title":"hack you 2014 - Crypto writeup"}