{"author_name":"smoking186","provider_name":"Hatena Blog","height":"190","type":"rich","url":"https://186.hatenablog.com/entry/20060921/1158848334","blog_title":"186 @ hatenablog","published":"2006-09-21 23:18:54","provider_url":"https://hatena.blog","description":"\u4eca\u5e74\u306e5\u6708\u4f4d\u306b\u306f\u3066\u306a\u306e\u8a8d\u8a3cAPI\u3093\u3068\u304d\u306b\u51fa\u3066\u304d\u3066\u305f\u8a71\u21922006/05/08 MAC_k(x)=MD5(k,x) \u3068\u3057\u305f\u3068\u304d\u306b\u4e0d\u5473\u3044\u7406\u7531\u3068\u304b\u3067. Cryptology ePrint Archive 2006/319 - S. Contini and Y. L. Yin \"Forgery and Partial Key-Recovery Attacks on HMAC and NMAC Using Hash Collisions\" ASIACRYPT2006\u306b\u51fa\u3066\u308b\u8ad6\u6587. Bellare\u304cCRYPTO2006\u3067\u4eca\u307e\u3067\u306e\u3088\u308a\u3082\u3046\u3061\u3087\u3063\u3068\u5f31\u3044\u4eee\u5b9a\u304b\u3089\u306e\u5b89\u5168\u6027\u8a3c\u660e\u3092\u4ed8\u3051\u305f\u3093\u3060\u3051\u3069, \u5b9f\u969b\u306b\u885d\u7a81\u304c\u898b\u3064\u304b\u3063\u2026","author_url":"https://blog.hatena.ne.jp/smoking186/","width":"100%","image_url":null,"blog_url":"https://186.hatenablog.com/","version":"1.0","title":" HMAC\u3068NMAC\u306e\u8a71 \u518d\u3073","categories":["study"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2F186.hatenablog.com%2Fentry%2F20060921%2F1158848334\" title=\" HMAC\u3068NMAC\u306e\u8a71 \u518d\u3073 - 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>"}