{"url":"https://htada.hatenadiary.org/entry/20060711/1152583322","width":"100%","image_url":null,"description":"http://www.atmarkit.co.jp/fsecurity/rensai/crypt04/crypt01.html \u306e\u8a18\u4e8b\u3092\u3060\u308c\u304b\u304c\u8aad\u3093\u3067\u3001\u300cSHA-1\u3058\u3083\u30a4\u30ab\u30f3\u300d\u3068\u306a\u308a\u307e\u3057\u305f\u3002 \u3067\u3001 Tomcat \u306eJDBCRealm\u8a8d\u8a3c\u3067SHA-256\u4f7f\u3048\u3093\u306e\u304b\u306a\u30fc\u3068\u601d\u3063\u3066\u3084\u3063\u3066\u307f\u305f\u3089\u3067\u304d\u307e\u3057\u305f\u3002 digest=\"SHA-256\"\u3067\u3002 Java\u306eMessageDigest\u30af\u30e9\u30b9\u306f MessageDigest.getInstance(\"SHA-256\")\u3067\u3002 \u203b\u6a2a\u68d2\u306f\u629c\u304b\u3057\u3061\u3083\u30c0\u30e1\u307f\u305f\u3044\u3002","author_url":"https://blog.hatena.ne.jp/htada/","height":"190","type":"rich","provider_name":"Hatena Blog","title":"\u30e1\u30c3\u30bb\u30fc\u30b8\u30c0\u30a4\u30b8\u30a7\u30b9\u30c8256","blog_url":"https://htada.hatenadiary.org/","version":"1.0","provider_url":"https://hatena.blog","author_name":"htada","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtada.hatenadiary.org%2Fentry%2F20060711%2F1152583322\" title=\"\u30e1\u30c3\u30bb\u30fc\u30b8\u30c0\u30a4\u30b8\u30a7\u30b9\u30c8256 - \u305f\u3060\u3076\u308d\u3050\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u305f\u3060\u3076\u308d\u3050","published":"2006-07-11 11:02:02","categories":["java"]}