key is its `gpgme_key_t' object, even if, behind the scene, it all boils down to using the key's fingerprint. Thanks, Ludovic. [0] http://marc.theaimsgroup.com/?l=gnupg-devel&m=115283285911807&w=2 [1] http://marc.theaimsgroup.com/?l=gnupg-devel&m=115286624006439&w=2