{"categories":["crypt"],"version":"1.0","published":"2009-04-13 21:08:23","description":"\u305d\u3046\u3044\u3048\u3070Web2.0\u3068\u3044\u3046\u60aa\u3057\u304d\u540d\u306e\u5f71\u97ff\u4e0b\u306bPirate 2.0\u3068\u3044\u3046\u653b\u6483\u6cd5\u304cEUROCRYPT 2009\u3067\u63d0\u6848\u3055\u308c\u308b\u306e\u3067\u3057\u305f. 2.0\u3063\u3066\u540d\u304c\u4f53\u3092\u8868\u3057\u3066\u306a\u3044\u304b\u3089\u5acc\u306a\u3093\u3067\u3059\u3051\u3069, \u307e\u3041\u305d\u308c\u3092\u3044\u3063\u305f\u3089CCA2 (chosen-ciphertext attack 2) \u3082\u540c\u3058\u3088\u306d. CCA1.5\u3063\u3066\u306e\u3082\u898b\u305f\u899a\u3048\u304c\u3042\u308b\u3057.\u3084\u3063\u3066\u308b\u3053\u3068\u306f\u6982\u8981\u8aad\u3080\u9650\u308a\u3067\u306f\u975e\u5e38\u306b\u9762\u767d\u3044\u3068\u601d\u3044\u307e\u3059. \u7686\u304c\u79d8\u5bc6\u9375\u306e\u4e00\u90e8\u3092\u516c\u958b\u3057\u3066\u3001\u305d\u308c\u3092\u96c6\u3081\u3066\u79d8\u5bc6\u9375\u3092\u5fa9\u5143\u3059\u308b\u307f\u305f\u3044\u3067\u3059\u3088. \u7b26\u53f7\u3063\u307d\u304f\u8003\u3048\u3066\u518d\u69cb\u6210\u3057\u3061\u3083\u3046\u3093\u3067\u3059\u304b\u306d.","url":"https://186.hatenablog.com/entry/20090413/1239624503","blog_url":"https://186.hatenablog.com/","width":"100%","blog_title":"186 @ hatenablog","provider_url":"https://hatena.blog","image_url":null,"provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2F186.hatenablog.com%2Fentry%2F20090413%2F1239624503\" title=\" \u6d77\u8cca\u884c\u70ba\u306e\u8a71 - 186 @ hatenablog\" 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","author_name":"smoking186","author_url":"https://blog.hatena.ne.jp/smoking186/","height":"190","title":" \u6d77\u8cca\u884c\u70ba\u306e\u8a71"}