gpg: Try to use the passphrase from the primary for --quick-addkey.
* agent/command.c (cmd_genkey): Add option --passwd-nonce. (cmd_passwd): Return a PASSWD_NONCE in verify mode. * g10/call-agent.c (agent_genkey): Add arg 'passwd_nonce_addr' and do not send a RESET if given. (agent_passwd): Add arg 'verify'. * g10/keygen.c (common_gen): Add optional arg 'passwd_nonce_addr'. (gen_elg, gen_dsa, gen_ecc, gen_rsa, do_create): Ditto. (generate_subkeypair): Use sepeare hexgrip var for the to be created for hexgrip feature. Verify primary key first. Make use of the passwd nonce. Allow for a static passphrase.
- Signed-off-by: Werner Koch <wk@gnupg.org>