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2013 %u5e74 11 %u6708%u5ea6%u306e%u5b9a%u4f8b%u30bb%u30ad%u30e5%u30ea%u30c6%u30a3%u60c5%u5831%u516c%u958b%u65e5%u306b%u3001%u30de%u30a4%u30af%u30ed%u30bd%u30d5%u30c8 %u30bb%u30ad%u30e5%u30ea%u30c6%u30a3 %u30a2%u30c9%u30d0%u30a4%u30b6%u30ea(2868725) %u300cRC4 %u3092%u7121%u52b9%u5316%u3059%u308b%u305f%u3081%u306e%u66f4%u65b0%u30d7%u30ed%u30b0%u30e9%u30e0%u300d%u3092%u516c%u958b%u3057%u307e%u3057%u305f%u3002%u3053%u308c%u306f%u3001%u30de%u30a4%u30af%u30ed%u30bd%u30d5%u30c8%u304c%u5b89%u5168%u306a%u6697%u53f7%u5316%u3084%u8a3c%u660e%u66f8%u306e%u5229%u7528%u3092%u4fc3%u9032%u3059%u308b%u305f%u3081%u306e%u7d99%u7d9a%u7684%u306a%u53d6%u308a%u7d44%u307f (%u30bb%u30ad%u30e5%u30ea%u30c6%u30a3 %u30a2%u30c9%u30d0%u30a4%u30b6%u30ea2854544) %u306e%u4e00%u74b0%u3067%u3059%u3002
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RC4 %u3068%u306f%uff1f
%u30b9%u30c8%u30ea%u30fc%u30e0%u578b%u3068%u547c%u3070%u308c%u308b%u6697%u53f7%u5316%u65b9%u5f0f%u306e 1 %u3064%u3067%u3001%u9ad8%u901f%u3067%u30b3%u30b9%u30c8%u304c%u5b89%u3044%u3053%u3068%u304b%u3089%u591a%u304f%u306e%u30a2%u30d7%u30ea%u30b1%u30fc%u30b7%u30e7%u30f3%u306b%u63a1%u7528%u3055%u308c%u3066%u304d%u307e%u3057%u305f%u3002%u73fe%u5728%u3067%u306f%u3001%u6280%u8853%u306e%u9032%u5316%u304b%u3089%u89e3%u8aad%u53ef%u80fd%u3067%u3042%u308b%u3053%u3068%u304c%u5224%u660e%u3059%u308b%u306a%u3069%u30a2%u30eb%u30b4%u30ea%u30ba%u30e0%u306e%u5b89%u5168%u6027%u304c%u4f4e%u304f%u306a%u3063%u3066%u3044%u307e%u3059%u3002%u3057%u304b%u3057%u306a%u304c%u3089%u3001%u4f9d%u7136%u3068%u3057%u3066%u5e83%u304f%u5229%u7528%u3055%u308c%u3066%u304a%u308a%u3001RC4 %u3092%u5229%u7528%u3059%u308b SSL/TLS %u304c%u653b%u6483%u306b%u5229%u7528%u3055%u308c%u308b%u30b1%u30fc%u30b9%u304c%u5e83%u307e%u3063%u3066%u3044%u307e%u3059%u3002
Internet Explorer 11%u3067%u306f%u3001RC4 %u4ee5%u5916%u306e%u3088%u308a%u5b89%u5168%u6027%u306e%u9ad8%u3044%u6697%u53f7%u5316%u65b9%u5f0f%u3092%u512a%u5148%u7684%u306b%u5229%u7528%u3057%u3001TLS1.2 %u304c%u65e2%u5b9a%u3067%u6709%u52b9%u3067%u3042%u308b%u306a%u3069%u3001%u5b89%u5168%u306a%u65b9%u5f0f%u3092%u512a%u5148%u7684%u306b%u5229%u7528%u3059%u308b%u3088%u3046%u8a2d%u8a08%u3055%u308c%u3066%u3044%u307e%u3059%u3002BEAST %u653b%u6483%u306a%u3069%u306e%u73fe%u5728%u5e83%u304f%u77e5%u3089%u308c%u3066%u3044%u308b%u653b%u6483%u306b%u5bfe%u3057%u3066%u3001TLS1.2 %u306f%u5f71%u97ff%u3092%u53d7%u3051%u307e%u305b%u3093%u3002
%u30a6%u30a7%u30d6 %u30b5%u30a4%u30c8%u3068%u3001%u30d6%u30e9%u30a6%u30b6%u30fc%u306e%u9593%u3067%u3069%u306e%u3088%u3046%u306a%u65b9%u5f0f%u3092%u5229%u7528%u3059%u308b%u304b%u306f%u3001%u304a%u4e92%u3044%u304c%u5229%u7528%u3067%u304d%u308b%u65b9%u5f0f%u3092%u512a%u5148%u4ed8%u3051%u3068%u5171%u306b%u901a%u77e5%u3057%u5229%u7528%u53ef%u80fd%u306a%u3082%u306e%u3092%u9078%u629e%u3057%u307e%u3059%u3002%u30de%u30a4%u30af%u30ed%u30bd%u30d5%u30c8%u304c500 %u4e07%u306e%u30a6%u30a7%u30d6 %u30b5%u30a4%u30c8%u3092%u5bfe%u8c61%u306b%u8abf%u67fb%u3057%u305f%u3068%u3053%u308d%u3001RC4 %u4ee5%u5916%u306e%u3088%u308a%u5b89%u5168%u306a%u6697%u53f7%u5316%u65b9%u5f0f%u304c%u5229%u7528%u3067%u304d%u308b%u306b%u3082%u95a2%u308f%u3089%u305a%u3001%u30d6%u30e9%u30a6%u30b6%u30fc%u306e%u8a2d%u5b9a%u306a%u3069%u306b%u3088%u308a%u5229%u7528%u3055%u308c%u3066%u3044%u306a%u3044%u30b1%u30fc%u30b9%u304c%u7d0440%uff05 %u3082%u3042%u308b%u3053%u3068%u304c%u5206%u304b%u308a%u307e%u3057%u305f%u3002Internet Explorer 11 %u304c%u5b89%u5168%u306a%u65b9%u5f0f%u3092%u512a%u5148%u7684%u306b%u5229%u7528%u3059%u308b%u8a2d%u5b9a%u3092%u65e2%u5b9a%u3067%u884c%u3046%u3053%u3068%u3067%u3001%u81ea%u52d5%u7684%u306b%u30e6%u30fc%u30b6%u30fc%u306b%u3088%u308a%u5b89%u5168%u306a%u74b0%u5883%u3092%u63d0%u4f9b%u3059%u308b%u4e8b%u304c%u3067%u304d%u307e%u3059(%u53c2%u8003%uff1aMSRC %u516c%u5f0f%u30d6%u30ed%u30b0%u3001Internet Explorer %u516c%u5f0f%u30d6%u30ed%u30b0 (%u82f1%u8a9e))
%u3053%u3046%u3057%u305f%u72b6%u6cc1%u304b%u3089%u3001Windows 8 %u4ee5%u524d%u306e OS %u306b%u304a%u3044%u3066%u3082%u3001RC4 %u3092%u7121%u52b9%u5316%u3057%u3001%u3088%u308a%u5b89%u5168%u306a%u74b0%u5883%u306e%u5229%u7528%u3092%u63a8%u9032%u3059%u308b%u305f%u3081%u306b%u3001%u30bb%u30ad%u30e5%u30ea%u30c6%u30a3 %u30a2%u30c9%u30d0%u30a4%u30b6%u30ea2868725 %u300cRC4 %u3092%u7121%u52b9%u5316%u3059%u308b%u305f%u3081%u306e%u66f4%u65b0%u30d7%u30ed%u30b0%u30e9%u30e0%u300d%u3092%u516c%u958b%u3057%u307e%u3057%u305f%u3002(Windows 8.1%u3001Windows Server 2012 R2%u3001%u304a%u3088%u3073 Windows RT 8.1 %u306f%u3001RC4 %u306e%u4f7f%u7528%u3092%u5236%u9650%u3059%u308b%u6a5f%u80fd%u3092%u3042%u3089%u304b%u3058%u3081%u5099%u3048%u3066%u3044%u307e%u3059)
%u30bb%u30ad%u30e5%u30ea%u30c6%u30a3 %u30a2%u30c9%u30d0%u30a4%u30b6%u30ea 2868725 %u300cRC4 %u3092%u7121%u52b9%u5316%u3059%u308b%u305f%u3081%u306e%u66f4%u65b0%u30d7%u30ed%u30b0%u30e9%u30e0%u300d
%u5bfe%u8c61%u74b0%u5883
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%u66f4%u65b0%u30d7%u30ed%u30b0%u30e9%u30e0%u306e%u52d5%u4f5c
%u66f4%u65b0%u30d7%u30ed%u30b0%u30e9%u30e0%u3092%u9069%u7528%u3059%u308b%u3053%u3068%u3067%u3001%u30ec%u30b8%u30b9%u30c8%u30ea%u8a2d%u5b9a%u306b%u3088%u308a%u4f7f%u7528%u53ef%u80fd%u306a%u6697%u53f7%u3068%u3057%u3066%u306e RC4 %u3092%u7121%u52b9%u5316%u3059%u308b%u3053%u3068%u304c%u3067%u304d%u307e%u3059%u3002%u307e%u305f%u958b%u767a%u8005%u306f%u3001SCHANNEL_CRED %u69cb%u9020%u4f53%u306e%u4e2d%u306e SCH_USE_STRONG_CRYPTO %u30d5%u30e9%u30b0%u3092%u4f7f%u7528%u3059%u308b%u3053%u3068%u3067%u3001%u500b%u3005%u306e%u30a2%u30d7%u30ea%u30b1%u30fc%u30b7%u30e7%u30f3%u5185%u306e RC4 %u3092%u524a%u9664%u3059%u308b%u3053%u3068%u3082%u3067%u304d%u307e%u3059%u3002%u3053%u308c%u3089%u306e%u30aa%u30d7%u30b7%u30e7%u30f3%u306f%u65e2%u5b9a%u3067%u306f%u6709%u52b9%u3067%u3042%u308a%u307e%u305b%u3093%u3002%u3059%u306a%u308f%u3061%u66f4%u65b0%u30d7%u30ed%u30b0%u30e9%u30e0%u3092%u30a4%u30f3%u30b9%u30c8%u30fc%u30eb%u3059%u308b%u3060%u3051%u3067%u306f%u52d5%u4f5c%u306b%u5909%u66f4%u304c%u3042%u308a%u307e%u305b%u3093%u3002(RC4 %u306f%u6709%u52b9%u306e%u307e%u307e%u3067%u3059)
RC4%u3092%u7121%u52b9%u5316%u3057%u3066%u3082%u554f%u984c%u306a%u3044%u304b%u3092%u5341%u5206%u306b%u691c%u8a3c%u3057%u305f%u4e0a%u3067%u3001%u8a2d%u5b9a%u5909%u66f4%u3092%u884c%u3046%u5fc5%u8981%u304c%u3042%u308a%u307e%u3059%u3002WEP,WPA,SSL/TLS %u306b%u304a%u3051%u308b%u6697%u53f7%u65b9%u5f0f%u3068%u3057%u3066 RC4 %u304c%u5229%u7528%u3055%u308c%u3066%u3044%u308b%u30b1%u30fc%u30b9%u304c%u591a%u304f%u3042%u308a%u307e%u3059%u3002%u30a6%u30a7%u30d6%u30b5%u30a4%u30c8%u3068%u30af%u30e9%u30a4%u30a2%u30f3%u30c8%u3067%u3069%u306e%u3088%u3046%u306a%u6697%u53f7%u65b9%u5f0f%u304c%u5229%u7528%u3055%u308c%u3066%u3044%u308b%u304b%u3092%u8abf%u3079%u308b%u306b%u306f%u3001%u30b5%u30dd%u30fc%u30c8%u6280%u8853%u60c5%u5831 299520 %u3092%u53c2%u8003%u306b%u3057%u3066%u307f%u3066%u304f%u3060%u3055%u3044%u3002
RC4%u3092%u5229%u7528%u3057%u3066%u3044%u308b%u5834%u5408%u306f%u3001%u4f8b%u3048%u3070 TLS %u306a%u3089%u3070 TLS1.2 AES-GCM %u306a%u3069%u3001%u3088%u308a%u5b89%u5168%u306a%u65b9%u5f0f%u3092%u5229%u7528%u3059%u308b%u3088%u3046%u5909%u66f4%u3059%u308b%u3053%u3068%u3092%u691c%u8a0e%u304f%u3060%u3055%u3044%u3002%uff08%u53c2%u8003: %u30b5%u30dd%u30fc%u30c8%u6280%u8853%u60c5%u5831 245030%uff09
%u8a2d%u5b9a%u5909%u66f4%u65b9%u6cd5
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Blog Post by: YURIKAM