On receiving the verifier and the server sent timestamp, the client knows that the server was able to correctly decrypt the conversation key and that it is correctly authenticated.
The signature verifier must have access to the public key certificate that contains the public key associated with the private key used to produce the signature.
签名验证者必须有权使用包含与用于生成签名的私钥关联的公钥的公钥证书。
3
This verifier includes the client timestamp - 1 (encrypted by conversation key) and the index ID in the server table for this client connection.