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When a SSH client connects to a server, each side offers lists of connection parameters to the other. These are, with the corresponding ssh_config keyword:*KexAlgorithms: the key exchange methods that are used to generate per-connection keys*Ciphers: the ciphers to encrypt the connection*MACs: the message authentication codes used to detect traffic modification*PubkeyAcceptedKeyTypes: the public key algorithms that the server can use to authenticate itself to