question about public key usage

[Doug Barton]

On 11/07/2013 12:52 PM, Smith, Cathy wrote:
> Hi
> Is it possible to have 2 public keys with different expiration dates for
> the same user?  I created a public key a couple of years ago to be used
> to exchange documents with vendors for a batch processing account.  That
> is working just fine.  A new vendor wants our public key but requires
> the key to have a shorter expiration date.  I don’t want to distribute a
> new public key to existing customers.

Someone else already answered this question for you, but the answer 
effectively is "yes," however you don't need to do that.

Edit the expiration date on the existing key to match the requirement 
for the new vendor, and then give them that version of the key. There is 
no reason to have multiple keys in this situation.

hope this helps,

Doug