scd: more pinpad fix.

* scd/apdu.c (check_pcsc_pinpad): Set ->minlen and ->maxlen only when
those are specified.
(pcsc_pinpad_modify): Remove old check code.

--

GnuPG-bug-id: 1549
scd: more pinpad input fix for PC/SC.

* scd/apdu.c (check_pcsc_pinpad): Set default values here.
(pcsc_pinpad_verify, pcsc_pinpad_modify): Remove setting default
values, as it's too late.

--

GnuPG-bug-id: 1549
Require Libgcrypt 1.6

* agent/pksign.c (do_encode_dsa): Remove Libgcrypt version check
--

Now that we have decided on a release plan for Libgcrypt 1.6 and given
all the improvements it makes more sense to make use of these
improvements than to clutter the GnuPG code with workarounds for older
Libgcrypt versions.
kbx: Fix possible segv in kbxdump.

* kbx/keybox-dump.c (_keybox_dump_blob): Check length before get32.

Signed-off-by: Werner Koch <wk@gnupg.org>
gpg: Rework ECC support and add experimental support for Ed25519.

* agent/findkey.c (key_parms_from_sexp): Add algo name "ecc".
(agent_is_dsa_key): Ditto.
(agent_is_eddsa_key): New.  Not finished, though.
* agent/pksign.c (do_encode_eddsa): New.
(agent_pksign_do): Use gcry_log_debug functions.
* agent/protect.c (agent_protect): Parse a flags parameter.
* g10/keygen.c (gpg_curve_to_oid): Move to ...
* common/openpgp-oid.c (openpgp_curve_to_oid): here and rename.
(oid_ed25519): New.
(openpgp_oid_is_ed25519): New.
(openpgp_oid_to_curve): New.
* common/t-openpgp-oid.c (test_openpgp_oid_is_ed25519): New.
* g10/build-packet.c (gpg_mpi_write): Write the length header also for
opaque MPIs.
(gpg_mpi_write_nohdr): New.
(do_key): Use gpg_mpi_write_nohdr depending on algorithm.
(do_pubkey_enc): Ditto.
* g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Use
gpg_mpi_write_nohdr.
* g10/export.c (transfer_format_to_openpgp):
* g10/keygen.c (ecckey_from_sexp): Return the error.
(gen_ecc): Repalce arg NBITS by CURVE.
(read_parameter_file): Add keywords "Key-Curve" and "Subkey-Curve".
(ask_curve): New.
(generate_keypair, generate_subkeypair): Use ask_curve.
(do_generate_keypair): Also pass curve name.
* g10/keylist.c (list_keyblock_print, list_keyblock_colon): Print
curve name.
* g10/parse-packet.c (mpi_read): Remove workaround for
Libcgrypt < 1.5.
(parse_key): Fix ECC case.  Print the curve name.
* g10/pkglue.c (mpi_from_sexp): Rename to get_mpi_from_sexp.
(pk_verify, pk_check_secret_key): Add special case for Ed25519.
* g10/seskey.c (encode_md_value): Ditto.
* g10/sign.c (do_sign, hash_for, sign_file): Ditto.
--

Be warned that this code is subject to further changes and that the
format will very likely change before a release.  There are also known
bugs and missing code.

Signed-off-by: Werner Koch <wk@gnupg.org>
Fix minor compiler warnings.

--
kbx: Implement update operation for OpenPGP keyblocks.

* kbx/keybox-update.c (keybox_update_keyblock): Implement.
* kbx/keybox-search.c (get_blob_flags): Move to ...
* kbx/keybox-defs.h (blob_get_type): here.
* kbx/keybox-file.c (_keybox_read_blob2): Fix calling without R_BLOB.
* g10/keydb.c (build_keyblock_image): Allow calling without
R_SIGSTATUS.
(keydb_update_keyblock): Implement for keybox.

* kbx/keybox-dump.c (_keybox_dump_blob): Fix printing of the unhashed
size.  Print "does not expire" also on 64 bit platforms.

Signed-off-by: Werner Koch <wk@gnupg.org>
Add strusage macro replacement feature.

* common/argparse.c (writechar): New.
(writestrings): Add macro replacement feature.
(show_help): Remove specialized @EMAIL@ replacement.
* configure.ac (GNUPG_NAME, GPG_NAME, GPGSM_NAME): Define.
(GPG_AGENT_NAME, DIRMNGR_NAME, G13_NAME, GPGCONF_NAME): Define.
(GPGTAR_NAME, GPG_AGENT_INFO_NAME, GPG_AGENT_SOCK_NAME): Define.
(GPG_AGENT_SSH_SOCK_NAME, DIRMNGR_INFO_NAME): Define.
(DIRMNGR_SOCK_NAME): Define.

Signed-off-by: Werner Koch <wk@gnupg.org>
Make use of the *_NAME etc macros.

Replace hardwired strings at many places with new macros from config.h
and use the new strusage macro replacement feature.

* common/asshelp.c (lock_spawning) [W32]: Change the names of the spawn
sentinels.
* agent/command.c (cmd_import_key): Use asprintf to create the prompt.
gpg: Change armor Version header to emit only the major version.

* g10/options.h (opt): Rename field no_version to emit_version.
* g10/gpg.c (main): Init opt.emit_vesion to 1.  Change --emit-version
to bump up opt.emit_version.
* g10/armor.c (armor_filter): Implement different --emit-version
values.
--

GnuPG-bug-id: 1572
Signed-off-by: Werner Koch <wk@gnupg.org>