{"image_url":null,"author_url":"https://blog.hatena.ne.jp/Q_tyokinuhata/","blog_title":"\u65b0\u3057\u3044\u30d5\u30a9\u30eb\u30c0\u30fc\uff08\uff11\uff09","url":"https://kazukichi.hatenablog.jp/entry/2017/12/02/165356","published":"2017-12-02 16:53:56","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkazukichi.hatenablog.jp%2Fentry%2F2017%2F12%2F02%2F165356\" title=\" [\u6697\u53f7] S\u30dc\u30c3\u30af\u30b9 - \u65b0\u3057\u3044\u30d5\u30a9\u30eb\u30c0\u30fc\uff08\uff11\uff09\" 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","provider_name":"Hatena Blog","categories":["\u6697\u53f7"],"blog_url":"https://kazukichi.hatenablog.jp/","type":"rich","width":"100%","description":"ITC Advent Calendar \uff16\u65e5\u76ee. \u4eca\u65e5\u306fS\u30dc\u30c3\u30af\u30b9\u306b\u3064\u3044\u3066\u3067\u3059. \u8ab0\u3082\u8208\u5473\u306a\u3044\u3068\u304b\u77e5\u3089\u306d\u30fc\u3067\u3059. S\u30dc\u30c3\u30af\u30b9 S\u30dc\u30c3\u30af\u30b9(subscription box, S-box)\u3068\u306f, \u5e73\u6587\u3068\u6697\u53f7\u6587\u306e\u76f8\u95a2(\u7dda\u5f62\u6027)\u3092\u58ca\u3059\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u308b\u95a2\u6570\u306e\u3053\u3068\u3067\u3042\u308b. S\u30dc\u30c3\u30af\u30b9\u306f, m\u30d3\u30c3\u30c8\u306e\u5165\u529b\u3092n\u30d3\u30c3\u30c8\u306b\u5909\u63db\u3057\u3066\u51fa\u529b\u3059\u308b\u95a2\u6570\u3067\u3042\u308a, 2m\u306e\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u30c6\u30fc\u30d6\u30eb\u306b\u3088\u3063\u3066\u5b9f\u88c5\u3055\u308c\u308b. DES\u306a\u3069\u306e\u591a\u304f\u306e\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3067\u306f\u56fa\u5b9a\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u4f7f\u7528\u3055\u308c\u308b\u304c, Blowfish\u3084Twofish\u306a\u3069\u306e\u3088\u3046\u306b\u9375\u306b\u3088\u3063\u3066\u52d5\u7684\u306b\u30c6\u30fc\u30d6\u30eb\u304c\u751f\u6210\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308b. 1970\u5e74\u4ee3\u306b\u8a2d\u8a08\u3055\u308c\u305fDES\u3067\u306f\uff16bit\u306e\u2026","version":"1.0","height":"190","title":" [\u6697\u53f7] S\u30dc\u30c3\u30af\u30b9","author_name":"Q_tyokinuhata"}