A key establishment protocol is a protocol whereby a Shared secret becomes available to two or more parties, for subsequent cryptographic applications.
密钥建立协议是为了以后的密码学应用而使一个秘密密钥对两方或更多方都可用的过程。
HMAC can be used with any iterative cryptographic hash function, such as MD5 or SHA-1, in combination with a secret Shared key.
HMAC可以与任何反复式的密码编译杂凑函式(例如MD 5或SHA - 1)一起使用，并与秘密共用金钥组合。
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