{"title":"SipHash\u306e\u7279\u5fb4","image_url":null,"blog_url":"https://pebble8888.hatenablog.com/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpebble8888.hatenablog.com%2Fentry%2F2019%2F04%2F23%2F234114\" title=\"SipHash\u306e\u7279\u5fb4 - Pebble Coding\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u306e\u4e00\u3064\u306bSipHash\u304c\u3042\u308a\u307e\u3059\u3002 128\u30d3\u30c3\u30c8\u306e\u30ad\u30fc\u3068\u4efb\u610f\u9577\u306e\u30c7\u30fc\u30bf\u3092\u5165\u529b\u3068\u3057\u3066\u300164\u30d3\u30c3\u30c8\u307e\u305f\u306f128\u30d3\u30c3\u30c8\u3092\u51fa\u529b\u3059\u308b\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u3067\u3059\u3002 SHA1\u306f\u3001\u653b\u6483\u8005\u304cX, SHA1(X)\u3092\u77e5\u3063\u3066\u3044\u308b\u6642\u3001SHA1(X)=SHA1(Y)\u3068\u306a\u308bY\u3092\u6c42\u3081\u308b\u306e\u304c\u96e3\u3057\u3044\u3068\u3044\u3046\u7279\u5fb4\u3092\u6301\u3061\u307e\u3059\u3002 SipHash\u306f\u3001\u653b\u6483\u8005\u304cX, SipHash(X, key)\u3092\u77e5\u3063\u3066\u3044\u308b\u6642\u3001key, SipHash(Y, key)\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u5f97\u308b\u306e\u304c\u96e3\u3057\u3044\u3068\u3044\u3046\u7279\u5fb4\u3092\u6301\u3061\u307e\u3059\u3002 HMAC\u3082\u540c\u3058\u3088\u3046\u306a\u7279\u5fb4\u3092\u6301\u3061\u307e\u3059\u304c\u3001SipHash\u306f\u305d\u308c\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u9ad8\u901f\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306a\u306e\u3067\u3001\u901f\u5ea6\u304c\u8981\u6c42\u3055\u308c\u308b\u7528\u9014\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002 k\u2026","provider_url":"https://hatena.blog","url":"https://pebble8888.hatenablog.com/entry/2019/04/23/234114","published":"2019-04-23 23:41:14","author_name":"pebble8888","type":"rich","provider_name":"Hatena Blog","categories":[],"version":"1.0","blog_title":"Pebble Coding","author_url":"https://blog.hatena.ne.jp/pebble8888/","height":"190"}