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15 Commits

Author SHA1 Message Date
NIIBE Yutaka
26939ea222
Use gpgrt_b64* API of libgpg-error.
* common/Makefile.am (common_sources): Remove b64enc.c and b64dec.c.
(module_maint_tests): Remove t-b64.
(t_b64_LDADD): Remove.
* common/util.h: Remove the internal API.
* common/ssh-utils.c (get_fingerprint): Use the gpgrt_b64 API.
(ssh_public_key_in_base64): Likewise.
* dirmngr/crlfetch.c (my_es_read, crl_close_reader): Likewise.
* dirmngr/dirmngr-client.c (data_cb, do_lookup): Likewise.
* dirmngr/misc.c (armor_data): Likewise.
* g10/export.c (export_one_ssh_key, export_secret_ssh_key): Likewise.
* tools/gpg-card.c (cmd_writecert): Likewise.
* tools/mime-parser.c (parse_message_cb, mime_parser_release)
(process_part_data): Likewise.
* tools/wks-util.c (wks_armor_key): Likewise.

--

GnuPG-bug-id: 6734
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2023-09-26 13:34:50 +09:00
NIIBE Yutaka
f7e0b0c8a5 common: Fix to determine ECC curve for SSH.
* common/ssh-utils.c (ssh_public_key_in_base64): Use standard name for
ECC curve.

--

See oidtable in common/openpgp-oid.c.

Fixes-commit: 8e650dbd48fa5fde6d8f08154e6a892d495e9227
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-09-06 13:43:03 +09:00
NIIBE Yutaka
14e13fb712 common: Fix confusion of get_pk_algo_from_key.
* common/ssh-utils.c (ssh_public_key_in_base64): Fix the constants.

--

Fixes-commit: 8e650dbd48fa5fde6d8f08154e6a892d495e9227
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-03-04 10:57:48 +09:00
NIIBE Yutaka
8e650dbd48 scd: Let READKEY support --format=ssh option.
* scd/command.c (do_readkey): Support --format=ssh option.
* common/ssh-utils.c (ssh_public_key_in_base64): New.
* common/ssh-utils.h (ssh_public_key_in_base64): New declaration.

--

Code duplication (agent/command-ssh.c) will be cleaned up later.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-03-02 14:07:46 +09:00
NIIBE Yutaka
625ced6e67 Fix use of strncpy, which is actually good to use memcpy.
* common/ssh-utils.c (get_fingerprint): Use memcpy.
* g10/build-packet.c (string_to_notation): Use memcpy.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-09-06 11:41:13 +09:00
Justus Winter
3a07a69dfc
common: Correctly render SHA256-based ssh fingerprints.
* common/ssh-utils.c (dummy_realloc): New function.
(dummy_free): Likewise.
(get_fingerprint): Prepend the fingerprint with the name of the digest
algorithm.  Correctly render SHA256-based ssh fingerprints.
* common/t-ssh-utils.c (sample_keys): Add SHA256 hashes for the keys.
(main): Add an option to dump the keys to gather fingerprints, also
print the SHA256 fingerprint for keys given as arguments, and check
the SHA256 fingerprints of the test keys.

GnuPG-bug-id: 2106
Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-24 17:07:13 +02:00
Justus Winter
3ac1a9d3a0
common: Support different digest algorithms for ssh fingerprints.
* common/ssh-utils.c (get_fingerprint): Add and honor 'algo' parameter.
(ssh_get_fingerprint{,_string}): Likewise.
* common/ssh-utils.h (ssh_get_fingerprint{,_string}): Update prototypes.
* common/t-ssh-utils.c (main): Adapt accordingly.
* agent/command-ssh.c (agent_raw_key_from_file): Likewise.
(ssh_identity_register): Likewise.
* agent/command.c (do_one_keyinfo): Likewise.
* agent/findkey.c (modify_description): Likewise.
--
This lays the foundation to support other algorithms.

GnuPG-bug-id: 2106
Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-24 17:01:48 +02:00
Werner Koch
4d7dc432b5
Change all http://www.gnu.org in license notices to https://
--
2016-11-05 12:02:19 +01:00
NIIBE Yutaka
5c067d54d3 ssh: Fix fingerprint computation for EdDSA key.
* common/ssh-utils.c (get_fingerprint): Handle the prefix of 0x40.
* common/t-ssh-utils.c (sample_keys): Add a new key.

--

Also adding Ed25519 test key.
2015-09-29 15:33:59 +09:00
Werner Koch
2167951b27
ssh: Fix fingerprint computation for 384 bit ECDSA keys.
* common/ssh-utils.c (get_fingerprint): Fix hashed string.
--

That was an obvious c+p bug which should have been caught by a test
case.

GnuPG-bug-id: 2075
Debian-bug-id: 795636
2015-09-22 09:28:35 +02:00
Werner Koch
a77ed0f266 agent: Cleanups to prepare implementation of Ed25519.
* agent/cvt-openpgp.c: Remove.
(convert_to_openpgp): Use gcry_sexp_extract_param.
* agent/findkey.c (is_eddsa): New.
(agent_is_dsa_key, agent_is_eddsa_key): Check whether ecc means EdDSA.
* agent/pksign.c (agent_pksign_do): Add args OVERRIDEDATA and
OVERRIDEDATALEN.

* common/ssh-utils.c (is_eddsa): New.
(get_fingerprint): Take care or EdDSA.
2014-03-22 20:52:03 +01:00
Werner Koch
649b31c663 ssh: Support ECDSA keys.
* agent/command-ssh.c (SPEC_FLAG_IS_ECDSA): New.
(struct ssh_key_type_spec): Add fields CURVE_NAME and HASH_ALGO.
(ssh_key_types): Add types ecdsa-sha2-nistp{256,384,521}.
(ssh_signature_encoder_t): Add arg spec and adjust all callers.
(ssh_signature_encoder_ecdsa): New.
(sexp_key_construct, sexp_key_extract, ssh_receive_key)
(ssh_convert_key_to_blob): Support ecdsa.
(ssh_identifier_from_curve_name): New.
(ssh_send_key_public): Retrieve and pass the curve_name.
(key_secret_to_public): Ditto.
(data_sign): Add arg SPEC and change callers to pass it.
(ssh_handler_sign_request): Get the hash algo from SPEC.
* common/ssh-utils.c (get_fingerprint): Support ecdsa.

* agent/protect.c (protect_info): Add flag ECC_HACK.
(agent_protect): Allow the use of the "curve" parameter.
* agent/t-protect.c (test_agent_protect): Add a test case for ecdsa.

* agent/command-ssh.c (ssh_key_grip): Print a better error code.
--

The 3 standard curves are now supported in gpg-agent's ssh-agent
protocol implementation.  I tested this with all 3 curves and keys
generated by OpenSSH 5.9p1.

Using existing non-ssh generated keys will likely fail for now. To fix
this, the code should first undergo some more cleanup; then the fixes
are pretty straightforward.  And yes, the data structures are way too
complicated.
2012-12-12 18:47:21 +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
Werner Koch
13ec74481c common: Replace macro based function calls by using DEFAULT_ERRSOURCE.
* common/dns-cert.h (get_dns_cert): Remove macro.
* common/dns-cert.c (_get_dns_cert): Rename to get_dns_cert.  Replace
arg ERRSOURCE by global DEFAULT_ERRSOURCE.
* common/http.h (http_parse_uri, http_raw_connect, http_open)
(http_open_document, http_wait_response): Remove macros.
* common/http.c (_http_parse_uri, _http_raw_connect, _http_open)
(_http_open_document, _http_wait_response): Remove underscore from
symbols.  Replace args ERRSOURCE by global DEFAULT_ERRSOURCE.
* common/ssh-utils.h (ssh_get_fingerprint)
(ssh_get_fingerprint_string): Remove macros.
* common/ssh-utils.h (_ssh_get_fingerprint)
(_ssh_get_fingerprint_string): Remove underscore from symbols.
Replace args ERRSOURCE by global DEFAULT_ERRSOURCE.
* common/tlv.h (parse_ber_header, parse_sexp): Remove macros.
* common/tlv.c: Include util.h.
(_parse_ber_header, _parse_sexp): Remove underscore from symbols.
Replace args ERRSOURCE by global DEFAULT_ERRSOURCE.
2012-02-07 10:15:57 +01:00
Werner Koch
69f8a7f15d New functions to compute an ssh style fingerprint. 2011-07-20 16:41:25 +02:00