Smart Card support

[Jakub Jelen]

Hi all,
I was investigating openssh functionality with Smart Cards of different 
types from different vendors and there appeared few problems that would 
be great if they would be solved before 7.0 release. I filled bugs for 
them to keep track of them in openssh bugzilla

Bug 2427 - ssh keygen is trying to read uninitialized slots on smart 
card (and is failing) [1]
Bug 2429 - ssh-keygen ignores keys that have CKA_ID == 0 [2]
Bug 2430 - ssh-keygen should allow to login before reading public key 
from smart card [3]

Is there somebody who would be able to review the proposed changes and 
comment on the last one, what solution would be better? Then I can 
propose also some patch.

[1] https://bugzilla.mindrot.org/show_bug.cgi?id=2427
[2] https://bugzilla.mindrot.org/show_bug.cgi?id=2429
[3] https://bugzilla.mindrot.org/show_bug.cgi?id=2430

Best regards,

-- 
Jakub Jelen
Security Technologies
Red Hat