17.3. Event Sequence of an SSH Connection

17.3. Event Sequence of an SSH Connection

The following series of events help protect the integrity of SSH communication between two hosts.

  1. A cryptographic handshake is made so that the client can verify that it is communicating with the correct server.

  2. The transport layer of the connection between the client and remote host is encrypted using a symmetric cipher.

  3. The client authenticates itself to the server.

  4. The remote client interacts with the remote host over the encrypted connection.


[8] A multiplexed connection consists of several signals being sent over a shared, common medium. With SSH, different channels are sent over a common secure connection.