Encrypted ssh1 keys

From: Tony Hoyle (tmh@nodomain.org)
Date: 12/18/02 

From: tmh@nodomain.org (Tony Hoyle)
Date: 18 Dec 2002 06:19:44 -0800

I've been trying to find out the format of encrypted ssh1 private
keys. Can someone give a clue how to decrypt one? I have available
to me a library of various crypto algorthms so I don't have to do the
hard(?) bit.

SSH2 (OpenSSH format) keys were relatively easy, since they're just
3DES encrypted. As far as I can find out SSH1 are encrypted with a
non-standard version of 3DES but nowhere does it specify exactly how
non-standard (and whether the 3DES decryption routines I am calling
can be coerced into working with it).
Is there even an RFC that describes this? All the ones I've found
don't go into that kind of detail.

Tony

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