On Thu, Jul 31, 2008 at 11:19:53AM -0400, Paul Swartz wrote:
On Wed, Jul 23, 2008 at 6:00 AM, Jack Whitham <jack-tp@cs.york.ac.uk> wrote:
On Wed, Jul 23, 2008 at 01:39:19AM -0700, Pump Kin wrote:
Step 1) Is really bugging me here; I can't seem to strip the need for foreknowledge of the public key from the script. I can't easily programmatically access that information in my use case. I do however have ready access to the private key and fingerprint for verification. My modified tutorial scripts just vomit.
I had the same problem. Some new key management features have been added to Conch recently, so you now only need the private key:
class ClientUserAuth(userauth.SSHUserAuthClient): def getPrivateKey(self): return defer.succeed(self.__getKey().keyObject)
(Although I still get a deprecation warning about signData if I do this..)
You're getting the deprecation warning because you're not calling back the Deferred with a Key object; you're calling it back with a PyCrypto key object (that's what .keyObject is)
Thanks, but this does not fix it. The deprecation warning is: /usr/lib/python2.5/site-packages/twisted/conch/ssh/userauth.py:376: DeprecationWarning: signData is deprecated since Twisted Conch 0.9. Use Key(obj).sign(data). return keys.signData(privateKey, signData) I still get this warning even if I change my code to remove ".keyObject" but authentication no longer works if I do that. It looks like this is actually a bug in my copy of userauth.py (although it is not a serious problem - just a deprecation warning). I could get around the problem by reimplementing the signData method in SSHUserAuthClient. I am using version 8.1.0 as distributed by Debian, i.e. http://packages.debian.org/lenny/python-twisted-conch -- Jack Whitham jack@cs.york.ac.uk