Logging messages
There are event log messages when a new key is generated and zeroized for the server:
ssh: New <num-bits> -bit [rsa|dsa] SSH host key installed
ssh: New SSH host key zeroized
There are also messages that indicate when a client public key is installed or removed:
ssh: <num-bits> -bit [rsa|dsa] client public key [installed|removed] ([manager|operator]access)(key_comment)
NOTE:
Only up to 39 characters of the key comment are included in the event log message.