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Commit Graph

41 Commits

Author SHA1 Message Date
Werner Koch
8e63e813c7
common: Add a default OpenPGP ECC mapping.
* common/openpgp-oid.c (map_gcry_pk_to_openpgp): Map ECC to ECDSA
which is similar to what we do at opther places in gpg.
--

GnuPG-bug-id: 5555
2022-08-01 10:34:16 +02:00
Werner Koch
385f484133
scd:openpgp: Fix a segv for cards supporting unknown curves.
* common/openpgp-oid.c (get_keyalgo_string): Do not strdup NULL.
--

GnuPG-bug-id: 5963
2022-05-05 09:38:32 +02:00
NIIBE Yutaka
1524a942b6 gpg: Support exporting Ed448 SSH key.
* common/openpgp-oid.c (oid_ed448, openpgp_oidbuf_is_ed448): New.
(openpgp_oid_is_ed448): New.
* common/util.h (openpgp_oid_is_ed448): New.
* g10/export.c (export_one_ssh_key): Support Ed448 key.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-03-22 16:57:18 +09:00
NIIBE Yutaka
373b52e69a common: Fix the NBITS of Ed448in OIDTABLE.
common/openpgp-oid.c (oidtable): Ed448 uses 456-bit signature.

--

While the curve itself is 448-bit, the signature size is 456-bit.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-03-15 16:53:45 +09:00
NIIBE Yutaka
f3e424d4e7 Silence compiler warnings.
* common/openpgp-oid.c (map_openpgp_pk_to_gcry): Use cast for enum
conversion.
* dirmngr/dns-stuff.c (get_dns_srv): Use explicit conversion from
int to float.
* sm/gpgsm.c (parse_keyserver_line): Initialize ERR.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-08-19 13:21:32 +09:00
NIIBE Yutaka
a763bb2580 gpg,agent: Support Ed448 signing.
* agent/pksign.c (do_encode_eddsa): First argument is NBITs,
so that it can support Ed448, as well as Ed25519.
(agent_pksign_do): Follow the change.
* agent/sexp-secret.c (fixup_when_ecc_private_key): No fix-up needed
for Ed448, it's only for classic curves.
* common/openpgp-oid.c (oidtable): Add Ed448.
* common/sexputil.c (get_pk_algo_from_key): Ed448 is only for EdDSA.
* g10/export.c (match_curve_skey_pk): Ed448 is for EdDSA.
* g10/keygen.c (gen_ecc): Support Ed448 with the name of "ed448".
(ask_algo, parse_key_parameter_part): Handle "ed448".
* g10/pkglue.c (pk_verify): Support Ed448.
(pk_check_secret_key): Support Ed448.
* g10/sign.c (hash_for): Defaults to SHA512 for Ed448.
(make_keysig_packet): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-06-24 10:05:03 +09:00
NIIBE Yutaka
c94eea15d6 ecc: Use "cv448" to specify key using X448.
* common/openpgp-oid.c (oidtable): Use "cv448".
(oid_cv448): Rename from oid_x448.
(openpgp_oidbuf_is_cv448, openpgp_oid_is_cv448): Likewise.
* common/util.h (openpgp_oid_is_cv448): Follow the change.
* g10/ecdh.c (pk_ecdh_generate_ephemeral_key): Likewise.
* g10/keygen.c (gen_ecc, ask_algo): Use "cv448".
(parse_key_parameter_part): Likewise.
* g10/pkglue.c (get_data_from_sexp): Fix for debug output.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-06-23 10:10:29 +09:00
NIIBE Yutaka
e9760eb9e7 gpg: Add X448 support.
* common/openpgp-oid.c (oidtable): Add X448.
(oid_x448,openpgp_oidbuf_is_x448,openpgp_oid_is_x448): New.
* common/util.h (openpgp_oid_is_x448): New.
* g10/ecdh.c (gen_k): Add handling of opaque MPI and support
endianness.
(pk_ecdh_generate_ephemeral_key): X448 requires opaque MPI.
* g10/keygen.c (gen_ecc): Add support for X448.
(ask_algo, parse_key_parameter_part): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-06-09 14:56:50 +09:00
Werner Koch
5c29d25e6c
sm: Print the key types as standard key algorithm strings.
* sm/fingerprint.c (gpgsm_get_key_algo_info): Factor code out to ...
(gpgsm_get_key_algo_info2): new.
(gpgsm_pubkey_algo_string): New.
* sm/keylist.c (list_cert_colon): Put curve into field 17
(list_cert_raw): Print the unified key algotithm string instead of the
algo and size.
(list_cert_std): Ditto.
--

It is important to known whether a 256 bit ECC uses a NIST or a
Brainpool curve.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-05-07 09:45:49 +02:00
Werner Koch
24095101a5
common: Extend the openpgp_curve_to_oid function.
* common/openpgp-oid.c (openpgp_curve_to_oid): Add optional arg R_NBITS.
Change all callers.
--

In particular for ed25519 and cv25519 it is quite useful to have an
ability to get the required algorithm.
2020-02-11 14:40:54 +01:00
Werner Koch
332a72f734
common: Extend the new get_keyalgo_string function
* common/openpgp-oid.c (openpgp_oid_or_name_to_curve): New.
(get_keyalgo_string): Use it.
--

We do not always have an OID, so except the name or the alias of the
curve as well.  This creates a second entry mapping to the same name
but that does not matter.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-02-10 00:31:07 +01:00
Werner Koch
d1c518cdc9
common: Remove duplicated call to a function.
* common/openpgp-oid.c (openpgp_oid_to_str): Remove duplicated call.
--

The removed function was already called.  No memleak etc, though.

Fixes-commit: 4a1558d0c7
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-02-09 23:22:20 +01:00
Werner Koch
3a1fa13eed
common: New function get_keyalgo_string.
* common/openpgp-oid.c (struct keyalgo_string_s): New.
(keyalgo_strings): New.
(keyalgo_strings_size, keyalgo_strings_used): New.
(get_keyalgo_string): New.
--

This function is intended as a more general version of gpg's
pubkey_string function.  It has the advantage to avoid mallocs and
uses static table of algorithm strings instead.  There should be only
a few dozen of such strings (if at all) and thus all those allocations
we do internally in gpg's pubkey_string and the static buffers all
over the place are not too nice.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-02-09 21:26:35 +01:00
Werner Koch
49c891a9bf
common: Add OpenPGP<->Gcrypt pubkey id mapping functions.
* g10/misc.c (map_pk_gcry_to_openpgp): Move to ...
* common/openpgp-oid.c (map_gcry_pk_to_openpgp): here and rename.
Change all 4 callers.
(map_openpgp_pk_to_gcry): New.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-02-09 14:04:18 +01:00
Werner Koch
4a1558d0c7
common: New helper functions for OpenPGP curve OIDs.
* common/openpgp-oid.c (openpgp_oidbuf_to_str): Factor most code out
to ...
(openpgp_oidbuf_to_str): new.
(openpgp_oidbuf_is_ed25519): New.
(openpgp_oidbuf_is_cv25519): New.
--

At some places it is more convenient (and faster) to directly work on
buffers and avoid the way via opaque MPIs.  These 3 new functions
allow for that.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-01-29 18:19:05 +01:00
Daniel Kahn Gillmor
54eb375ff1 all: fix spelling and typos
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2018-10-24 15:56:18 -04:00
NIIBE Yutaka
5c8fe54809 Spelling fixes in docs and comments.
--

In addition, fix trailing spaces in tests/inittests.

GnuPG-bug-id: 3121
Reported-by: ka7 (klemens)
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-28 10:06:33 +09:00
Werner Koch
ce29272e24
gpg: New option --default-new-key-algo.
* common/openpgp-oid.c (openpgp_is_curve_supported): Add optional arg
R_ALGO and change all callers.
* common/util.h (GPG_ERR_UNKNOWN_FLAG): New error code.
* g10/options.h (struct opt): Add field DEF_NEW_KEY_ALGO.
* g10/gpg.c (oDefaultNewKeyAlgo): New enum.
(opts): New option "--default-new-key-algo".
(main): Set the option.
* g10/keygen.c: Remove DEFAULT_STD_ FUTURE_STD_ constants and replace
them by ...
(DEFAULT_STD_KEY_PARAM, FUTURE_STD_KEY_PARAM): new string constants.
(get_keysize_range): Remove arg R_DEF and return that value instead.
Change all callers.
(gen_rsa): Use get_keysize_range instead of the removed
DEFAULT_STD_KEYSIZE.
(parse_key_parameter_part): New function.
(parse_key_parameter_string): New function.
(quick_generate_keypair): Refactor using parse_key_parameter_string.
(generate_keypair): Ditto.
(parse_algo_usage_expire): Ditto.
--

This new option is intended to be used in the forthcoming
--set-profile command of gpgconf.  It allows to provide a gpg
configuration with custom defaults for a new key using the simple
commands which use the default algorithm set.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-12-02 19:47:40 +01:00
Werner Koch
4d7dc432b5
Change all http://www.gnu.org in license notices to https://
--
2016-11-05 12:02:19 +01:00
NIIBE Yutaka
945e7ab0dd common: Fix openpgp_is_curve_supported.
* common/openpgp-oid.c (openpgp_is_curve_supported): Support both of
canonical name of the curve and alias.

--
Only alias (the name for print) was allowed before this change.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-10-24 11:20:14 +09:00
Werner Koch
74a082bc10
common: Rename an odd named function.
* common/openpgp-oid.c (oid_crv25519): Rename to oid_cv25519.
(openpgp_oid_is_crv25519): Rename to openpgp_oid_is_cv25519.  Change
callers.

--

We use "cv25519" everywhere else and thus the test function should not
have a surprising name.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-08-25 15:16:32 +02:00
Werner Koch
072acb69be
common: New function openpgp_is_curve_supported.
* common/openpgp-oid.c: Include openpgpdefs.h.
(oidtable): Add field pubkey_algo.
(openpgp_is_curve_supported): New.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-02 15:57:59 +02:00
Justus Winter
a9e0905342 Fix typos found using codespell.
* agent/cache.c: Fix typos.
* agent/call-pinentry.c: Likewise.
* agent/call-scd.c: Likewise.
* agent/command-ssh.c: Likewise.
* agent/command.c: Likewise.
* agent/divert-scd.c: Likewise.
* agent/findkey.c: Likewise.
* agent/gpg-agent.c: Likewise.
* agent/w32main.c: Likewise.
* common/argparse.c: Likewise.
* common/audit.c: Likewise.
* common/audit.h: Likewise.
* common/convert.c: Likewise.
* common/dotlock.c: Likewise.
* common/exechelp-posix.c: Likewise.
* common/exechelp-w32.c: Likewise.
* common/exechelp-w32ce.c: Likewise.
* common/exechelp.h: Likewise.
* common/helpfile.c: Likewise.
* common/i18n.h: Likewise.
* common/iobuf.c: Likewise.
* common/iobuf.h: Likewise.
* common/localename.c: Likewise.
* common/logging.c: Likewise.
* common/openpgp-oid.c: Likewise.
* common/session-env.c: Likewise.
* common/sexputil.c: Likewise.
* common/sysutils.c: Likewise.
* common/t-sexputil.c: Likewise.
* common/ttyio.c: Likewise.
* common/util.h: Likewise.
* dirmngr/cdblib.c: Likewise.
* dirmngr/certcache.c: Likewise.
* dirmngr/crlcache.c: Likewise.
* dirmngr/dirmngr-client.c: Likewise.
* dirmngr/dirmngr.c: Likewise.
* dirmngr/dirmngr_ldap.c: Likewise.
* dirmngr/dns-stuff.c: Likewise.
* dirmngr/http.c: Likewise.
* dirmngr/ks-engine-hkp.c: Likewise.
* dirmngr/ks-engine-ldap.c: Likewise.
* dirmngr/ldap-wrapper.c: Likewise.
* dirmngr/ldap.c: Likewise.
* dirmngr/misc.c: Likewise.
* dirmngr/ocsp.c: Likewise.
* dirmngr/validate.c: Likewise.
* g10/encrypt.c: Likewise.
* g10/getkey.c: Likewise.
* g10/gpg.c: Likewise.
* g10/gpgv.c: Likewise.
* g10/import.c: Likewise.
* g10/keydb.c: Likewise.
* g10/keydb.h: Likewise.
* g10/keygen.c: Likewise.
* g10/keyid.c: Likewise.
* g10/keylist.c: Likewise.
* g10/keyring.c: Likewise.
* g10/mainproc.c: Likewise.
* g10/misc.c: Likewise.
* g10/options.h: Likewise.
* g10/packet.h: Likewise.
* g10/parse-packet.c: Likewise.
* g10/pkclist.c: Likewise.
* g10/pkglue.c: Likewise.
* g10/plaintext.c: Likewise.
* g10/server.c: Likewise.
* g10/sig-check.c: Likewise.
* g10/sqlite.c: Likewise.
* g10/tdbio.c: Likewise.
* g10/test-stubs.c: Likewise.
* g10/tofu.c: Likewise.
* g10/trust.c: Likewise.
* g10/trustdb.c: Likewise.
* g13/create.c: Likewise.
* g13/mountinfo.c: Likewise.
* kbx/keybox-blob.c: Likewise.
* kbx/keybox-file.c: Likewise.
* kbx/keybox-init.c: Likewise.
* kbx/keybox-search-desc.h: Likewise.
* kbx/keybox-search.c: Likewise.
* kbx/keybox-update.c: Likewise.
* scd/apdu.c: Likewise.
* scd/app-openpgp.c: Likewise.
* scd/app-p15.c: Likewise.
* scd/app.c: Likewise.
* scd/ccid-driver.c: Likewise.
* scd/command.c: Likewise.
* scd/iso7816.c: Likewise.
* sm/base64.c: Likewise.
* sm/call-agent.c: Likewise.
* sm/call-dirmngr.c: Likewise.
* sm/certchain.c: Likewise.
* sm/gpgsm.c: Likewise.
* sm/import.c: Likewise.
* sm/keydb.c: Likewise.
* sm/minip12.c: Likewise.
* sm/qualified.c: Likewise.
* sm/server.c: Likewise.
* tools/gpg-check-pattern.c: Likewise.
* tools/gpgconf-comp.c: Likewise.
* tools/gpgkey2ssh.c: Likewise.
* tools/gpgparsemail.c: Likewise.
* tools/gpgtar.c: Likewise.
* tools/rfc822parse.c: Likewise.
* tools/symcryptrun.c: Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2015-11-17 12:50:22 +01:00
Werner Koch
9f31ab3d21
common: Change alias for Curve25519 to "cv25519".
* common/openpgp-oid.c (oidtable): Change alias.
--

This is a cosmetic change so that common and expected common
algorithms line up nicely in a keylisting.  For example:

  pub   ed25519/C68CE6D1ED0319C8 2015-08-06
  uid                 [ultimate] Curve25519 Test 150806.1
  sub   cv25519/49238B9F0712C9BF 2015-08-06
  sub   rsa2048/8AEAF74014699D2C 2015-08-06
  sub   cv25519/8EC3776830B08736 2015-08-06

Signed-off-by: Werner Koch <wk@gnupg.org>
2015-08-07 09:37:49 +02:00
NIIBE Yutaka
e5891a82c3 Curve25519 support.
* agent/cvt-openpgp.c (get_keygrip): Handle Curve25519.
(convert_secret_key, convert_transfer_key): Ditto.
* common/openpgp-oid.c (oidtable): Add Curve25519.
(oid_crv25519, openpgp_oid_is_crv25519): New.
* common/util.h (openpgp_oid_is_crv25519): New.
* g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Handle the case
with Montgomery curve which uses x-only coordinate.
* g10/keygen.c (gen_ecc): Handle Curve25519.
(ask_curve): Change the API and second arg is to return subkey algo.
(generate_keypair, generate_subkeypair): Follow chage of ask_curve.
* g10/keyid.c (keygrip_from_pk): Handle Curve25519.
* g10/pkglue.c (pk_encrypt): Handle Curve25519.
* g10/pubkey-enc.c (get_it): Handle the case with Montgomery curve.
* scd/app-openpgp.c (ECC_FLAG_DJB_TWEAK): New.
(send_key_attr): Work with general ECC, Ed25519, and Curve25519.
(get_public_key): Likewise.
(ecc_writekey): Handle flag_djb_tweak.

--

When libgcrypt has Curve25519, GnuPG now supports Curve25519.
2015-08-06 17:00:41 +09:00
NIIBE Yutaka
a6e4053089 common: extend API of openpgp_oid_to_curve for canonical name.
* common/openpgp-oid.c (openpgp_oid_to_curve): Add CANON argument.
* common/util.h: Update.
* g10/import.c (transfer_secret_keys): Follow the change.
* g10/keyid.c (pubkey_string): Likewise.
* g10/keylist.c (list_keyblock_print, list_keyblock_colon): Likewise.
* parse-packet.c (parse_key): Likewise.
* scd/app-openpgp.c (send_key_attr, get_public_key): Likewise.

--

Change the function so that caller can select canonical name of curve
or name for printing.  Suggested by wk.
2015-08-06 16:51:14 +09:00
NIIBE Yutaka
5b46726931 g10: Use canonical name for curve.
* g10/import.c (transfer_secret_keys): Use canonical name.
* common/openpgp-oid.c (openpgp_curve_to_oid): Return NULL on error.
* g10/keyid.c (pubkey_string): Follow change of openpgp_curve_to_oid.
* g10/keylist.c (list_keyblock_print, list_keyblock_colon): Ditto.
* g10/parse-packet.c (parse_key): Ditto.
2015-07-08 15:05:06 +09:00
Werner Koch
35db798c2d
common: Make openpgp_oid_to_str more robust.
* common/openpgp-oid.c (openpgp_oid_to_str): Take care of
gcry_mpi_get_opaque returning NULL.  Remove useless condition !BUF.
--

It is possible that an opaque MPI stores just a NULL pointer.  Take
care of that before incrementing the pointer.  We return an error in
this case because at least a length byte is required.

Found due to hint from stack 0.3:

  bug: anti-simplify
  model: |
    %tobool15 = icmp ne i8* %incdec.ptr, null, !dbg !567
    -->  true
  stack:
    - /home/wk/s/gnupg/common/openpgp-oid.c:220:0
  ncore: 1
  core:
    - /home/wk/s/gnupg/common/openpgp-oid.c:212:0
      - pointer overflow

Signed-off-by: Werner Koch <wk@gnupg.org>
2015-03-15 12:07:21 +01:00
Werner Koch
14af2be022
gpg: Add --list-gcrypt-config and "curve" item for --list-config.
* common/openpgp-oid.c (curve_supported_p): New.
(openpgp_enum_curves): New.
* common/t-openpgp-oid.c (test_openpgp_enum_curves): New.
(main): Add option --verbose.
* g10/gpg.c (opts): Add --list-gcrypt-config.
(list_config): Add items "curve" and "curveoid".  Remove unused code.
--

GnuPG-bug-id: 1917
Signed-off-by: Werner Koch <wk@gnupg.org>
2015-03-10 15:35:30 +01:00
Werner Koch
87a218c3bf
doc: Some typo fixes.
--
2015-03-06 10:46:40 +01:00
Werner Koch
8445ef24fc Fix buffer overflow in openpgp_oid_to_str.
* common/openpgp-oid.c (openpgp_oid_to_str): Fix unsigned underflow.

* common/t-openpgp-oid.c (BADOID): New.
(test_openpgp_oid_to_str): Add test cases.
--

The code has an obvious error by not considering invalid encoding for
arc-2.  A first byte of 0x80 can be used to make a value of less then
80 and we then subtract 80 from that value as required by the OID
encoding rules.  Due to the unsigned integer this results in a pretty
long value which won't fit anymore into the allocated buffer.

The fix is obvious.  Also added a few simple test cases.  Note that we
keep on using sprintf instead of snprintf because managing the
remaining length of the buffer would probably be more error prone than
assuring that the buffer is large enough.  Getting rid of sprintf
altogether by using direct conversion along with membuf_t like code
might be possible.

Reported-by: Hanno Böck
Signed-off-by: Werner Koch <wk@gnupg.org>

Ported from libksba commit f715b9e156dfa99ae829fc694e5a0abd23ef97d7
2014-11-25 11:58:56 +01:00
Werner Koch
bf2fc12b83 gpg: Fix export of NIST ECC keys.
* common/openpgp-oid.c (struct oidtable): New.
(openpgp_curve_to_oid): Rewrite and allow OID as input.
(openpgp_oid_to_curve): Make use of the new table.
--

Due to the previous change we now usually store the OID with the
private key and not the name.  Thus during import we do not anymore
need to map the name to an oid but can use the oid directly.  We fix
that by extending openpgp_curve_to_oid to allow an oidstr as input.
2014-09-02 12:10:19 +02:00
Werner Koch
8fee6c1ce6 gpg: Finish experimental support for Ed25519.
* agent/cvt-openpgp.c (try_do_unprotect_arg_s): Add field "curve".
(get_keygrip): Add and use arg CURVE.
(convert_secret_key): Ditto.
(convert_transfer_key): Ditto.
(get_npkey_nskey): New.
(prepare_unprotect): Replace gcrypt functions by
get_npkey_nskey.  Allow opaque MPIs.
(do_unprotect): Use CURVE instead of parameters.
(convert_from_openpgp_main): Ditto.
(convert_to_openpgp):  Simplify.
* g10/import.c (one_mpi_from_pkey): Remove.
(transfer_secret_keys): Rewrite to use the curve instead of the
parameters.
* g10/parse-packet.c (parse_key): Mark protected MPIs with USER1 flag.

* common/openpgp-oid.c (openpgp_curve_to_oid): Allow the use of
 "NIST P-256" et al.
* g10/keygen.c (ask_curve): Add arg ALGO.
(generate_keypair): Rewrite the ECC key logic.

* tests/openpgp/ecc.test: Provide the "ecc" passphrase.
2014-05-07 13:27:43 +02:00
NIIBE Yutaka
40c3b0741e g10: EdDSA support.
* g10/keyid.c (keygrip_from_pk): Compute keygrip of EdDSA key.
* g10/keygen.c (generate_subkeypair): Ed25519 is for EdDSA.
* common/openpgp-oid.c (oid_ed25519): Update.
2014-04-08 11:59:39 +09:00
Werner Koch
2c814806d7 gpg: Change format for the key size in --list-key and --edit-key.
* g10/gpg.c (oLegacyListMode, opts, main): Add --legacy-list-mode.
* g10/options.h (struct opt): Add field legacy_list_mode.
* g10/keydb.h (PUBKEY_STRING_SIZE): New.
* g10/keyid.c (pubkey_string): New.
* g10/import.c (import_one, import_secret_one): Use pubkey_string.
* g10/keylist.c (print_seckey_info): Ditto.
(print_pubkey_info, print_card_key_info): Ditto.
(list_keyblock_print): Ditto.
* g10/mainproc.c (list_node): Ditto.
* g10/pkclist.c (do_edit_ownertrust, build_pk_list): Ditto.
* g10/keyedit.c (show_key_with_all_names): Ditto.  Also change the
format.
(show_basic_key_info): Ditto.
* common/openpgp-oid.c (openpgp_curve_to_oid): Also allow "ed25519".
(openpgp_oid_to_curve): Downcase "ed25519"
--

For ECC it seems to be better to show the name of the curve and not
just the size of the prime field.  The curve name does not anymore fit
into the "<size><letter>" descriptor (e.g. "2048R") and a fixed length
format does not work either.  Thus the new format uses

   "rsa2048"    - RSA with 2048 bit
   "elg1024"    - Elgamal with 1024 bit
   "ed25519"    - ECC using the curve Ed25519.
   "E_1.2.3.4"  - ECC using the unsupported curve with OID "1.2.3.4".

unless --legacy-list-mode is given.  In does not anymore line up
nicely in columns thus I expect further changes to this new format.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-02-05 10:37:59 +01:00
NIIBE Yutaka
c5e41f539b Add secp256k1.
* common/openpgp-oid.c (openpgp_curve_to_oid): Add secp256k1.
(openpgp_oid_to_curve): Likewise.

* g10/keygen.c (ask_curve): Add secp256k1.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2014-01-15 15:00:24 +09:00
Werner Koch
59207a86e5 gpg: Change OID of Ed25519 and add Brainpool oids.
* common/openpgp-oid.c (openpgp_curve_to_oid): Change OID for
Ed25519.  Add brainpool OIDs.
(openpgp_oid_to_curve): Ditto.
--

This change is required to the change in Libgcrypt.  Note that we will
likely use a different OpenPGP algorithm ID for EdDSA and thus the
current Ed25519 implementation will not stay with us.

Signed-off-by: Werner Koch <wk@gnupg.org>
2013-12-05 13:50:35 +01:00
Werner Koch
402aa0f948 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>
2013-11-15 09:01:11 +01:00
Werner Koch
37df3d5f59 Change license for some files in common to LGPLv3+/GPLv2+.
Having the LGPL on the common GnuPG code helps to share code
between GnuPG and related projects (like GPGME and Libassuan).  This
is good for interoperability and to reduces bugs.

* common/asshelp.c, common/asshelp.h, common/asshelp2.c, common/b64dec.c
* common/b64enc.c, common/convert.c, common/dns-cert.c
* common/dns-cert.h common/exechelp-posix.c, common/exechelp-w32.c
* common/exechelp-w32ce.c, common/exechelp.h, common/get-passphrase.c
* common/get-passphrase.h, common/gettime.c, common/gpgrlhelp.c
* common/helpfile.c, common/homedir.c, common/http.c, common/http.h
* common/i18n.c, common/init.c, common/init.h, common/iobuf.c
* common/iobuf.h, common/localename.c, common/membuf.c, common/membuf.h
* common/miscellaneous.c, common/openpgp-oid.c, common/openpgpdefs.h
* common/percent.c, common/pka.c, common/pka.h, common/session-env.c
* common/session-env.h, common/sexp-parse.h, common/sexputil.c
* common/signal.c, common/srv.c, common/srv.h, common/ssh-utils.c
* common/ssh-utils.h, common/sysutils.c, common/sysutils.h
* common/tlv.c, common/tlv.h, common/ttyio.c, common/ttyio.h
* common/userids.c, common/userids.h, common/xasprintf.c: Change
license to LGPLv3+/GPLv2+/
2012-04-20 15:48:48 +02:00
Andrey Jivsov
e1c38a7ff5 fixed --list-keys on Linux64 bit 2011-02-11 17:38:39 -08:00
Werner Koch
e0d4139e19 Move OpenPGP OID helpers to common/.
This is needed so that the agent will be able to export and import
OpenPGP secret keys.  Add test case.

Removed unused function.
2011-01-31 18:19:14 +01:00