Private key encryption by Passphrase

[Amarpal Singh]

Hi All,

When ss-keygen creates a private key, I guess it stores it in the private
key file after encrypting it with the passphrase.
What kind of encryption does ssh-keygen use for OpenSSH, SSH1 and SSH2?

Another question: OpenSSH doesn't support all the ciphers of either SSh-1 or
SSH-2? So I assume it doesn't work exhaustively with the SSH1 or SSH2
clients? Can we consider OpenSH as a standard of its own?

Thanks
Amarpal.