{"id":16142,"date":"2022-01-01T09:49:51","date_gmt":"2022-01-01T00:49:51","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=16142"},"modified":"2023-05-28T08:39:34","modified_gmt":"2023-05-27T23:39:34","slug":"%e3%80%90%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e3%80%91%e3%80%8csrtp%e3%80%8d%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=16142","title":{"rendered":"\u3010\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3011\u300cSRTP\u300d\u306b\u3064\u3044\u3066"},"content":{"rendered":"

\u305d\u3082\u305d\u3082RTP\u3068\u306f\uff1f<\/h2>\n

SRTP\u3092\u7406\u89e3\u3059\u308b\u524d\u6bb5\u3068\u3057\u3066RTP\u3092\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002TCP\u3067\u306f\u306a\u304fUDP\u306e\u4e0a\u3067\u5b58\u5728\u3057\u3066\u3044\u308b\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6027\u3092\u8ffd\u6c42\u3057\u305f\u30c7\u30fc\u30bf\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002<\/p>\n

RTP\u30d1\u30b1\u30c3\u30c8\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u88dc\u52a9\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

TCP\u3067\u306f\u30c0\u30e1\u306a\u306e\uff1f<\/h3>\n

\u4fe1\u983c\u6027\u304c\u4ec7\u306b\u306a\u308b\u3002<\/p>\n

\u3067\u306f\u3001UDP\u3067\u306f\u30c0\u30e1\u306a\u306e\uff1f<\/h3>\n

UDP\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002UDP\u3060\u3068\u30dd\u30fc\u30c8\u756a\u53f7\u306b\u3088\u308b\u901a\u4fe1\u8b58\u5225\u3068\u3001CRC(Cyclic Redundancy Check)\u306b\u3088\u308b\u30c7\u30fc\u30bf\u7834\u640d\u30c1\u30a7\u30c3\u30af\u304f\u3089\u3044\u3057\u304b\u306a\u3044\u3002\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u901a\u4fe1\u306e\u305f\u3081\u306b\u306f\u3082\u3063\u3068\u69d8\u3005\u306a\u60c5\u5831\u304c\u5fc5\u8981\u306b\u306a\u308b\u3002<\/p>\n

\u4ed5\u7d44\u307f<\/h3>\n

RTP\u306e\u30d8\u30c3\u30c0\u306b\u306f\u30c7\u30fc\u30bf\u306e\u9806\u5e8f\u756a\u53f7\u3001\u9001\u4fe1\u6642\u523b\uff08\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\uff09\u306a\u3069\u304c\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u3001\u53d7\u4fe1\u5074\u306f\u3053\u308c\u3092\u307f\u3066\u30c7\u30fc\u30bf\u3092\u6642\u7cfb\u5217\u306b\u8868\u793a\u3001\u518d\u751f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u3067\u4f5c\u3089\u308c\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5c64\u306a\u3069\u306eTCP\/IP\u306e\u968e\u5c64\u3067\u3069\u3093\u3069\u3093\u30e9\u30c3\u30d7\u3055\u308c\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

\u6b74\u53f2<\/h3>\n\n\n\n\n\n\n
\u5e74<\/th>\n\u8aac\u660e<\/th>\n<\/tr>\n
1996\u5e74<\/td>\nRFC1889\u3068\u3057\u3066\u52e7\u544a\u3055\u308c\u305f\u3002<\/td>\n<\/tr>\n
2003\u5e74<\/td>\n\u6697\u53f7\u5316\u306a\u3069\u306e\u898f\u5b9a\u3092\u8ffd\u52a0\u3057\u305fRFC3550\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u305f\u3002<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

RFC\u3068\u306f\uff1f<\/h4>\n

\u300cRequest for Comments\u300d\u306e\u7565\u3067\u3059\u3002IETF(Internet Engineering Task Force)\u306b\u3088\u3063\u3066\u5b9a\u3081\u3089\u308c\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u95a2\u308f\u308b\u6587\u66f8\u7fa4\u3067\u3059\u3002RTP\u306fRFC\u6587\u66f8\u306e\u4e2d\u306e3550\u306b\u3088\u3063\u3066\u5b9a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h3>\n
    \n
  • IP\u96fb\u8a71<\/li>\n
  • \u52d5\u753b\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\uff08RTSP)<\/li>\n<\/ul>\n

    SRTP(Secure Real-time Transport Protocol)\u3068\u306f\uff1f<\/h2>\n

    \u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u5c64\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306e\u9593\u306b\u3042\u308bRTP\u306e\u4ee3\u66ff\u30d7\u30ed\u30c8\u30b3\u30eb\u3002IETF RFC3711(2004\u5e743\u6708\u767a\u884c)\u306b\u3066\u898f\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u30e1\u30ea\u30c3\u30c8<\/h2>\n

    RTP\u3084\u3001RTCP\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u5bfe\u3057\u3066\u6697\u53f7\u5316\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u8a8d\u8a3c\u3001\u30ea\u30d7\u30ec\u30a4\u653b\u6483\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u306a\u3069\u3092\u3059\u308b\u3002<\/p>\n

    \u30e1\u30c3\u30bb\u30fc\u30b8\u8a8d\u8a3c<\/h3>\n

    \u53d7\u3051\u53d6\u3063\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u6539\u5909\u304c\u52a0\u3048\u3089\u308c\u3066\u306a\u3044\u3053\u3068\u3092\u898b\u5206\u3051\u308b\u6a5f\u80fd\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u300cHMAC-SHA1\u300d\u3068\u3044\u3046\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u6697\u53f7\u5316\u65b9\u6cd5<\/h3>\n

    \u30c7\u30d5\u30a9\u30eb\u30c8\u3067AES(Advanced Encryption Standard)\u306eCounter Mode\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n

    \u30ea\u30d7\u30ec\u30a4\u653b\u6483\u5bfe\u7b56<\/h3>\n

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    \u30ea\u30d7\u30ec\u30a4\u653b\u6483\u3068\u306f\uff1f<\/h4>\n

    \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6d41\u308c\u308b\u30c7\u30fc\u30bf\u3092\u76d7\u8074\u3057\u3066\u30b3\u30d4\u30fc\u3057\u8a8d\u8a3c\u30b5\u30fc\u30d0\u30fc\u3078\u9001\u308b\u3053\u3068\u3067\u306a\u308a\u3059\u307e\u3059\u653b\u6483<\/p>\n","protected":false},"excerpt":{"rendered":"\u305d\u3082\u305d\u3082RTP\u3068\u306f\uff1f SRTP\u3092\u7406\u89e3\u3059\u308b\u524d\u6bb5\u3068\u3057\u3066RTP\u3092\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002TCP\u3067\u306f\u306a\u304fUDP\u306e\u4e0a\u3067\u5b58\u5728\u3057\u3066\u3044\u308b\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6027\u3092\u8ffd\u6c42\u3057\u305f\u30c7\u30fc\u30bf\u8ee2\u9001\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002 RTP\u30d1\u30b1\u30c3\u30c8\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u88dc\u52a9\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u3066 […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[89],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/16142"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16142"}],"version-history":[{"count":7,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/16142\/revisions"}],"predecessor-version":[{"id":20775,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/16142\/revisions\/20775"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16142"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}