{"id":1155,"date":"2017-11-19T17:01:41","date_gmt":"2017-11-19T08:01:41","guid":{"rendered":"https:\/\/www.noble-system.com\/ssl\/?page_id=1155"},"modified":"2017-11-20T20:50:10","modified_gmt":"2017-11-20T11:50:10","slug":"ssl%e8%aa%ac%e6%98%8e","status":"publish","type":"page","link":"https:\/\/www.noble-system.com\/ssl\/?page_id=1155","title":{"rendered":"SSL\u8aac\u660e"},"content":{"rendered":"

SSL\u306e\u6982\u8981<\/h2>\n
\n

SSL(Secure Sockets Layer )\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u521d\u3081\u306e\u9803\u3001\u8239\u306e\u8235\u306e\u30a2\u30a4\u30b3\u30f3\u3067\u6709\u540d\u3060\u3063\u305f\u30cd\u30c3\u30c8\u30b9\u30b1\u30fc\u30d7\u30fb\u30ca\u30d3\u30b2\u30fc\u30bf\u3068\u3044\u3046\u4e00\u4e16\u3092\u98a8\u9761\u3057\u305fweb\u30d6\u30e9\u30a6\u30b6\u3092\u4f5c\u3063\u305f\u30cd\u30c3\u30c8\u30b9\u30b1\u30fc\u30d7\u793e\u304c\u958b\u767a\u3057\u305fWeb\u30b5\u30fc\u30d0\u3068Web\u30d6\u30e9\u30a6\u30b6\u9593\u3067\u8a8d\u8a3c\u3084\u6697\u53f7\u5316\u3092\u884c\u3046\u305f\u3081\u306e\u901a\u4fe1\u65b9\u5f0f\u3067\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u81ea\u4f53\u3092\u6d41\u308c\u308b\u30c7\u30fc\u30bf\u81ea\u4f53\u3092\u6697\u53f7\u5316\u3059\u308bIPsec\u3068\u3044\u3046\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5168\u4f53\u306b\u304b\u304b\u308f\u3089\u306a\u3044\u306e\u3067\u5b89\u4fa1\u306b\u5b9f\u73fe\u3067\u304d\u308b\u307e\u3059\u3002\u3067\u3059\u304b\u3089web\u3084\u308a\u53d6\u308a\u306a\u3069\u306e\u5fc5\u8981\u306a\u60c5\u5831\u90e8\u5206\u3060\u3051\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001SSL\u306f\u30b5\u30fc\u30d0\u3092\u8a2d\u5b9a\u3059\u308c\u3070\u3001mail\u3084ftp(\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001)\u6642\u306b\u3082\u4f7f\u3048\u307e\u3059\u306e\u3067\u91cd\u5b9d\u3057\u307e\u3059\u3002ftp.\u30c9\u30e1\u30a4\u30f3.com\u306a\u3069\u3082\u5408\u308f\u305b\u3066\u53d6\u5f97\u3059\u308c\u3070\u30e6\u30fc\u30b6\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u57fa\u672c\u3068\u306a\u308bRSA\u306a\u3069\u306e\u6280\u8853\u306f\u3001\u5927\u304d\u306a\u7d20\u6570\u304b\u3089\u5408\u6210\u3057\u305f\u6570\u306e\u7d20\u6570\u5206\u89e3\u306f\u975e\u5e38\u306b\u96e3\u3057\u3044\u306e\u3067\u5927\u304d\u306a\u7d20\u6570\u3092\u77e5\u3063\u3066\u3044\u308b\u4eba\u3057\u304b\u3067\u304d\u307e\u305b\u3093\u3068\u3044\u3046\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u5927\u304d\u306a\u7d20\u6570\u306f\u9ad8\u3044\u5024\u6bb5\u3067\u53d6\u5f15\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u8106\u5f31\u6027<\/h2>\n
\n

SSL Ver 3.0\u3067\u306fCBC\u30e2\u30fc\u30c9\u306e\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u7a7a\u304d\u3092\u57cb\u3081\u308b\u30d1\u30c7\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u306b\u898f\u5247\u6027\u304c\u3042\u308a\u3001\u4e2d\u9593\u8005\u653b\u6483(Man-In-the-Middle Attack)\u3092\u884c\u3044\u30a8\u30e9\u30fc\u3092\u8d77\u3053\u3057\u518d\u9001\u3055\u305b\u30011\u56de\u306b1\u30d0\u30a4\u30c8\u3065\u3064\u89e3\u8aad\u3059\u308bPOODLE(Padding Oracle On Downgraded Legacy Encryption)\u653b\u6483\u3068\u3044\u3046\u8106\u5f31\u6027\u304c\u767a\u898b\u3055\u308c\u305f\u3002
\n\u3053\u306e\u3068\u304d\u306f\u3001\u4e8b\u524d\u306b\u8106\u5f31\u6027\u306e\u30a2\u30ca\u30a6\u30f3\u30b9\u3068\u539f\u56e0\u3068\u5bfe\u5fdc\u7b56\u767a\u8868\u306e\u65e5\u4ed8\u4e88\u544a\u304c\u3042\u3063\u305f\u3060\u3051\u3067\u8106\u5f31\u6027\u306e\u5185\u5bb9\u3082\u308f\u304b\u3089\u305a\u3001\u767a\u8868\u5f8c\u306b\u5185\u5bb9\u3092\u5143\u306b\u3059\u308b\u653b\u6483\u304c\u59cb\u307e\u308b\u524d\u306b\u5bfe\u7b56\u3059\u308b\u305f\u3081\u306b\u5f85\u6a5f\u72b6\u614b\u3067\u3057\u305f\u3002\u767a\u8868\u3092\u898b\u3066\u304b\u3089\u653b\u6483\u3092\u4f5c\u308b\u4eba\u305f\u3061\u3082\u3044\u308b\u306e\u3067\u3001\u539f\u56e0\u3084\u5bfe\u7b56\u3088\u308a\u5148\u306b\u8106\u5f31\u6027\u306e\u30a2\u30ca\u30a6\u30f3\u30b9\u3092\u884c\u3044\u5468\u77e5\u3055\u305b\u4e00\u6589\u306b\u5bfe\u7b56\u3068\u3044\u3046\u5f62\u306b\u306a\u308a\u307e\u3059\u3002
\n\u4ed6\u306b\u3082\u30b5\u30fc\u30d0\u306e\u30e1\u30e2\u30ea\u30fc\u3078\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306eHeartbleed Bug\u3084\u3001Factoring attack on RSA-EXPORT Keys\uff08FREAK)\u3001diffle-Hellman(DH)\u306e\u9375\u4ea4\u63db\u3067\u898b\u3064\u304b\u3063\u305fLogjam\u653b\u6483\u306a\u3069\u3001\u3068\u304d\u3069\u304d\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u591a\u304f\u306f\u3001SSL\u30b5\u30fc\u30d0\u8a3c\u660e\u66f8\u3084SSL\u95a2\u9023\u88fd\u54c1\u306b\u95a2\u3059\u308b\u8106\u5f31\u6027\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u8ffd\u8a18\u3057\u3066\u304a\u304d\u307e\u3059\u3002
\n\u4e2d\u9593\u8005\u653b\u6483\u304c\u5fc5\u8981\u306a\u3069\u6a19\u7684\u578b\u3067\u306f\u306a\u3044\u304b\u304e\u308a\u3001\u6700\u65b0\u306eSSL\/TLS\u304c\u642d\u8f09\u3055\u308c\u305fweb\u30d6\u30e9\u30a6\u30b6\u3068\u3001\u7ba1\u7406\u3055\u308c\u305fweb\u30b5\u30fc\u30d0\u3068SSL\u8a8d\u8a3c\u66f8\u304c\u3042\u308c\u3070\u5b89\u5168\u6027\u306f\u9ad8\u3044\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n

 <\/p>\n

SSL\/TLS\u3068\u3044\u3046\u8868\u8a18<\/h2>\n
\n

SSL\u306f\u3001TLS(Transport Layer Security)\u3068\u540d\u524d\u3092\u5909\u3048\u3001\u6a19\u6e96\u5316\u304c\u9032\u307fVer 1.2\u3068\u306a\u3063\u3066\u3044\u307e\u3059(\u6b21\u306f1.3\u3067\u306f\u306a\u304f\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306e\u6539\u5584\u3084\u6027\u80fd\u5411\u4e0a\u306e\u305f\u3081\u306e\u5927\u304d\u306a\u4ed5\u69d8\u5909\u66f4\u306e\u305f\u3081Ver \uff12\uff0e\uff10\uff1f)\u3002TLS 1.0-1.1\u306e\u5834\u5408\u3001\u5b9f\u88c5\u306b\u3088\u3063\u3066\u540c\u69d8\u306ePOODLE\u653b\u6483\u304c\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u3063\u3066\u3044\u307e\u3059\u306e\u3067\u3001web\u30b5\u30a4\u30c8\u5074\u306fSSL\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u6700\u65b0\u306b\u4fdd\u3064\u3053\u3068\u3068\u3001\u30e6\u30fc\u30b6\u5074\u306f\u6700\u65b0\u306eweb\u30d6\u30e9\u30a6\u30b6\u3092\u4f7f\u3046\u3053\u3068\u3092\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046\u3002\u30b5\u30fc\u30d0\u5074\u304c\u6700\u65b0\u306eSSL\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u3044\u3066\u3082\u3001web\u30d6\u30e9\u30a6\u30b6\u304c\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30b5\u30fc\u30d0\u5074\u306f\u81ea\u52d5\u7684\u306b\u4e0b\u4f4d\u4e92\u63db\u6027\u3092\u4fdd\u3064\u305f\u3081\u306b\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4e0b\u3052\u3066\u3044\u304d\u307e\u3059(TLS\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u653b\u6483)\u3002\u30b5\u30fc\u30d0\u5074\u3067\u306f\u3001\u3069\u3053\u307e\u3067\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u4e92\u63db\u6027\u3092\u4fdd\u3064\u304b\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002
\n\u3059\u3079\u3066\u306e\u4e8b\u696d\u4f53\u306f2018\/6\/30\u306e\u767a\u884c\u65e5\u3092\u3082\u3063\u3066NIST\u306e\u5b9a\u7fa9\u306b\u3088\u308bTLS\u306e\u5b89\u5168\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u307f\u3092\u4f7f\u7528\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u3067\u3001\u89e3\u8aac\u3057\u3066\u3044\u308b\u30b5\u30a4\u30c8\u306a\u3069\u3092\u53c2\u8003\u306b\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u4e0b\u4f4d\u4e92\u63db\u6027\u8a2d\u5b9a\u3092SSL\/TLS 1.0\u306f\u7121\u52b9\u3001TLS 1.1\u4ee5\u4e0a\u3092\u6709\u52b9\u306b\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n

SSL\u304b\u3089\u3001TLS\u306b\u898f\u683c\u304c\u5909\u308f\u308a\u307e\u3057\u305f\u304c\u3001TLS\u306a\u306b\u305d\u308c\u304a\u3044\u3057\u3044\u306e?\u72b6\u614b\u306a\u306e\u3067\u3001\u5b9f\u969b\u306b\u306f100%\u8fd1\u304fTLS1.2\u3067\u901a\u4fe1\u3057\u3066\u3044\u3066\u3082\u3001SSL\u8a3c\u660e\u66f8\u3068\u4e00\u822c\u306b\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u8aac\u660e\u3067\u3082SSL\u5358\u72ec\u8868\u793a\u304b\u3001\u826f\u304f\u3066\u3082SSL\/TLS\u3068\u4f75\u8a18\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

 <\/p>\n

ECC\uff08\u6955\u5186\u66f2\u7dda\u6697\u53f7\uff09\u6697\u53f7\u5316<\/h2>\n
\n

\u6700\u8fd1\u306f\u60c5\u5831\u5165\u529b\u753b\u9762\u3060\u3051\u3067\u306a\u304f\u3001\u5e38\u6642SSL\u63a5\u7d9a\u304b\u3082\u9032\u307f\u898f\u6a21\u304c\u5927\u304d\u3044\u3082\u3057\u304f\u306f\u3001\u30e6\u30fc\u30b6\u304c\u591a\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306fSSL\/TLS\u306e\u6697\u53f7\u5316\u306b\u3088\u308b\u9045\u5ef6\u304c\u591a\u304f\u306a\u3063\u3066\u3044\u308b\u3002ECC\u306f\u77ed\u3044\u6841\u9577\u3067\u3082\u6697\u53f7\u5316\u306e\u5f37\u5ea6\u304c\u9ad8\u3044\u306e\u3067\u9ad8\u901f\u51e6\u7406\u304c\u3067\u304d\u307e\u3059\u3002\u4eca\u307e\u3067\u4f7f\u308f\u308c\u3066\u3044\u305fRSA\u3068\u3044\u3046\u6841\u6570\u304c\u5927\u304d\u3044\u6570\u306e\u7d20\u56e0\u6570\u5206\u89e3\u3092\u4f7f\u3063\u305f\u6697\u53f7\u5316\u3067\u306f\u6697\u53f7\u5f37\u5ea6\u3068\u6841\u6570\u306e\u76f8\u95a2\u304c\u5f37\u3059\u304e\u307e\u3059\u30022048bit\u306eRSA\u306f\u3001ECC\u3067\u306f224bit\u3068\u3044\u3046\u77ed\u3055\u306b\u306a\u308a\u3001\u4e00\u822c\u7684\u306aECC 256bit\u3067\u3042\u308c\u3070\u30013072bit\u3068\u3044\u3046\u9577\u3055\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u3044\u304b\u306b\u65e9\u304f\u51e6\u7406\u304c\u3067\u304d\u308b\u304b\u60f3\u50cf\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u5f53\u7136\u901a\u4fe1\u306e\u3084\u308a\u53d6\u308a\u3082\u77ed\u304f\u306a\u308a\u307e\u3059\u306e\u3067\u3001\u6709\u5229\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001ECC\u5bfe\u5fdc\u306eSSL\u8a8d\u8a3c\u306fRSA\u3057\u304b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u53e4\u3044web\u30d6\u30e9\u30a6\u30b6\u306e\u5834\u5408\u306f\u4e21\u65b9\u5bfe\u5fdc\u3067\u304d\u308b\u30e9\u30a4\u30bb\u30f3\u30b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u666e\u901a\u306b\u5c0e\u5165\u3059\u308c\u3070\u30e6\u30fc\u30b6\u5074\u306f\u6c17\u306b\u3057\u306a\u304f\u3066\u5927\u4e08\u592b\u3067\u3059\u3002<\/p>\n

 <\/p>\n

\u516c\u958b\u30ad\u30fc\u3001\u6697\u53f7\u30ad\u30fc<\/h2>\n
\n

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