{"version":"1.0","height":"190","blog_url":"https://so-wh.at/","type":"rich","title":" EVP_BytesToKey\u3092Ruby\u3067\u5b9f\u88c5\u3059\u308b","author_url":"https://blog.hatena.ne.jp/winebarrel/","published":"2008-12-08 00:00:00","width":"100%","provider_url":"https://hatena.blog","description":"\u8a33\u3042\u3063\u3066EVP_BytesToKey\u3092Ruby\u3067\u5b9f\u88c5\u3057\u305f\u306e\u3067\u3001\u30ed\u30b0\u3092\u6b8b\u3057\u3066\u304a\u304f\u3002 require 'digest/md5' def bytes_to_key0(md_buf, salt, data, count) src = md_buf.empty? ? '' : md_buf src << data src << salt if salt dst = Digest::MD5.digest(src) (count - 1).times do dst = Digest::MD5.digest(dst) end return dst end def bytes_to_key(salt, data\u2026","blog_title":"so what","provider_name":"Hatena Blog","image_url":null,"author_name":"winebarrel","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fso-wh.at%2Fentry%2F20081208%2Fp1\" title=\" EVP_BytesToKey\u3092Ruby\u3067\u5b9f\u88c5\u3059\u308b - so what\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://so-wh.at/entry/20081208/p1","categories":["RUBY"]}