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In SSL and TLS, why is there a separate Change Cipher Spec Protocol rather than including a change_cipher_spec message in the Handshake Protocol?
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A: Why is change cipher spec an independent protocol content type and not part of Handshake Messages?
SSL uses messages which are encoded over records. Encryption is done on a per record basis. However, several messages of the same type (e.g. handshake messages) can be crammed together in the same record. Since the Change Cipher Spec message modifies encryption settings, a new record should begin...
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