I'm not sure if you mean, programmatically how you would write code to
do it, or as an admin is there an easy way to do it. In any case, the
ssh-keygen tool in openssh does it via:
ssh-keygen -i -f /path/to/keyfile
From the man page:
-i This option will read an unencrypted private (or public)
key file
in SSH2-compatible format and print an OpenSSH compatible
private
(or public) key to stdout. ssh-keygen also reads the
`SECSH
Public Key File Format'. This option allows importing keys
from
several commercial SSH implementations.
So, from the 'as an admin' perspective, you could probably build a
script around the exit status from such a command. From the
programmatic perspective, the openssh code would presumably be a good
place to look.
Hope that helps.
Mark
-----Original Message-----
From: Michael Mannsberger [mailto:mm450exc@gmail.com]
Sent: August 1, 2005 14:28
To: secureshell@securityfocus.com
Subject: passphrase/ssh2
How can I check if a ssh2 key has a passphrase set or not? I
know the structure of a ssh1 private key but can't find
anything on ssh2.
-mike
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