Retrieve TTL of key from the agent

[Damien Miller]

On Mon, 10 Dec 2012, Tim Heckman wrote:

> Hello,
> 
> I'm writing a system to maintain keys within an SSH agent, and all of these
> keys will only remain in the agent for a short amount of time. This is done
> to limit access to that key for a short period, as well as to avoid the
> agent from being cluttered up with a large number of unique SSH keys.
> 
> This system decrypts the SSH keys on the disk and then loads them in to the
> agent. I would like to be able to get the key's TTL so I can decide if it's
> worth decrypting the key again and loading it in to the agent, or if I
> should just use the key already in the agent.
> 
> So in short, is there a way to get the TTL for a key in the agent?

No - the agent protocol (detailed in PROTOCOL.agent) doesn't offer any way
to export this information.

-d