sshd and smart card support

sshd and smart card support

[Jarek C.]

After a lot of struggling with trying to get sshd work with regular 
domain accounts I found an alternative bit of software I then installed 
for a test. After a failed test, looking thrugh the logs of that ssh 
server I found an interesting piece of information possibly explaining 
why it wouldn't work with my initial setup. It turned up that all the 
domain accounts I used for testing have a requirement associated with 
the account AD object to use smart cards for logon pourposes. I never 
seen this mentioned in cygwin sshd logs as a reason for failed 
connection but only a statement that the logon name or password was 
incorrect. I don't suppose there is a workaround but maybe something 
worth implementing in sshd logs to cover this sort of scenerios as 
likely no one was expecting this to be causing access problems.

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RE: [cygwin] sshd and smart card support

[Jason Pyeron]

> -----Original Message-----
> From: Jarek C.
> Sent: Sunday, September 27, 2015 4:45 AM
> 
> After a lot of struggling with trying to get sshd work with 
> regular domain accounts I found an alternative bit of 
> software I then installed for a test. After a failed test, 
> looking thrugh the logs of that ssh server I found an 
> interesting piece of information possibly explaining why it 
> wouldn't work with my initial setup. It turned up that all 
> the domain accounts I used for testing have a requirement 
> associated with the account AD object to use smart cards for 
> logon pourposes. I never seen this mentioned in cygwin sshd 
> logs as a reason for failed connection but only a statement 
> that the logon name or password was incorrect. I don't 
> suppose there is a workaround but maybe something worth 
> implementing in sshd logs to cover this sort of scenerios as 
> likely no one was expecting this to be causing access problems.

1. Getting ssh to work with smartcards would be the first step.

This requires working with the smartcard middleware / applets. There are
many people out there who would be interested in this.

2. Getting sshd to interact as if a smart card was presented...

This is a lot less likely to succeed.

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