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lojh12345
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12-11-2020
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SDP消息中各个属性字段的解释
07-16-2015
加密密钥 k=已定义的方法有k=clear:<加密密钥>密钥没有变换k=base64:<编码密钥>已编码，因为它含有SDP禁用的字符k=uri:<获得密钥的URI>k=prompt。SDP没有提供密钥但该会话或媒体流是要求加密的。秘钥交换过程中这个k参数是如何变化的？求大神指点
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