OpenPGP card specification 2.0 improvement?

NIIBE Yutaka gniibe at
Tue May 17 02:31:33 CEST 2011

2011-05-16 Werner Koch wrote:
> However, this is standard ISO 7816 behaviour.  I know several cards
> which do it this way.

Thanks, I see.

When a card only supports fixed length of PIN input, host program can
check if the length of PIN input is correct.  In this case, there is
no problem.

I think that fixed length PIN input is virtually standard for most of

If a card supports variable length of PIN, it would be better to have
format to specify length of input on host side.

More information about the Gnupg-devel mailing list