Using a 3072 bit key on a OpenPGP 2.0 card with GnuPG 2.0.12+patches from issue
1094 fails with a card error. Signing and SSH logins works great and I've
succesfully transferred 3072 bit keys to the card, but DECIPHER fails with this:
2009-08-17 12:16:06 scdaemon DBG: response: sw=640A datalen=0
Looking at the spec, 640A doesn't even look like a valid error?
What other information can I provide?