{"type":"rich","image_url":null,"description":"TLS\u306e\u4f8b\u3092\u8abf\u3079\u305f\u3064\u3044\u3067\u306bJCE\u3067\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3092\u8abf\u3079\u3066\u307f\u305f\u3002CTR\u30e2\u30fc\u30c9\u3092\u4f7f\u3046\u6642\u306e\u6700\u5927\u306e\u554f\u984c\u306fIV\u3092\u3069\u3046\u6271\u3046\u304b\u3068\u3044\u3046\u3053\u3068\u3060\u3063\u305f\u3051\u308c\u3069\u3001JCE\u306eCipher\u3067\u306finit()\u6642\u304f\u3089\u3044\u3057\u304bIV\u306e\u6307\u5b9a\u3059\u308b\u65b9\u6cd5\u304c\u306a\u3044\u3088\u3046\u306a\u6c17\u304c\u3059\u308b\u3002\u3053\u306e\u5834\u5408\u3001\u8907\u6570\u306e\u30d6\u30ed\u30c3\u30af\u3092\u6697\u53f7\u5316\u3059\u308b\u5834\u5408\u306bIV\u304c\u5909\u5316\u3059\u308b\u306e\u304b\u3069\u3046\u304b\u304c\u77e5\u308a\u305f\u304f\u306a\u308b\u306e\u3060\u3051\u308c\u3069\u3001\u63a2\u3057\u305f\u9650\u308a\u3067\u306f\u660e\u78ba\u306a\u8a18\u8ff0\u304c\u898b\u5f53\u305f\u3089\u306a\u304b\u3063\u305f\u3002\u3068\u3044\u3046\u308f\u3051\u3067\u5b9f\u969b\u306bCTR\u30e2\u30fc\u30c9\u3067\u540c\u3058\u30d6\u30ed\u30c3\u30af\u3092\uff12\u56de\u6697\u53f7\u5316\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u3063\u3066\u3001\u51fa\u529b\u304c\u5909\u5316\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u3066\u307f\u305f*1\u3002 // IV\u3092\u6e96\u5099 byte[] iv = new byte[16]; Arrays.fill(iv, (byte)0);\u2026","published":"2008-02-09 01:23:01","blog_title":"\u307e\u3069\u304e\u308fBLOG","author_url":"https://blog.hatena.ne.jp/mdgw/","url":"https://mdgw.hateblo.jp/entry/20080209/1202574181","height":"190","provider_url":"https://hatena.blog","blog_url":"https://mdgw.hateblo.jp/","provider_name":"Hatena Blog","title":"JCE\u3067AES/CTR\u3092\u8a66\u3057\u3066\u307f\u305f","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmdgw.hateblo.jp%2Fentry%2F20080209%2F1202574181\" title=\"JCE\u3067AES/CTR\u3092\u8a66\u3057\u3066\u307f\u305f - \u307e\u3069\u304e\u308fBLOG\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Java","\u6697\u53f7"],"width":"100%","author_name":"mdgw","version":"1.0"}