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Author SHA1 Message Date
NIIBE Yutaka
fb9e39dcc9 ecc-sos,gpg: Use sexp_extract_param_sos to get MPI. 
* g10/export.c (sexp_extract_param_sos): Expose.
* g10/keygen.c (ecckey_from_sexp): Use it.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-06-04 18:16:27 +09:00
NIIBE Yutaka
f71dff40ea ecc-sos: Apply SOS also to ECDSA. 
This causes a regression in:

    FAIL: tests/openpgp/ecc.scm

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-06-04 11:56:46 +09:00
NIIBE Yutaka
d18fa9fb9a ecc-sos: Fix handling cleartext secret key from agent. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-06-04 11:47:51 +09:00
NIIBE Yutaka
e249f51c64 ecc-sos, agent: More fixes for fixup of ECC private key. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-06-04 10:48:39 +09:00
NIIBE Yutaka
d1af7b781c ecc-sos,agent: Fix sexp parsing of private key. 
* agent/sexp-secret.c (fixup_when_ecc_private_key): Correctly parse
SEXP.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-06-03 20:27:29 +09:00
NIIBE Yutaka
5f3fcb579f ecc-sos, agent: Add fixing up private key part for leading zero. 
GnuPG-bug-id: 4956
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-06-03 13:01:35 +09:00
NIIBE Yutaka
3d3f99d76a Revert "ecc-sos: Add special leading zero octet removal." 
This reverts commit 1c4291c3951dc73db1511f6198555c2a7642bf12.
 2020-06-01 11:39:00 +09:00
NIIBE Yutaka
2fc7fbc46b ecc-sos: SOS as Strange Octet String. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-27 16:15:26 +09:00
NIIBE Yutaka
1c4291c395 ecc-sos: Add special leading zero octet removal. 
* agent/cvt-openpgp.c (extract_private_key): Remove leading zeros.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-27 12:06:27 +09:00
NIIBE Yutaka
6d226ec8bd ecc-sos: Fix SOS handling and revert change of cvt protocol. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-26 15:20:40 +09:00
NIIBE Yutaka
85acf0699e ecc-sos: Unsigned integer for SSH, more. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-26 14:20:38 +09:00
NIIBE Yutaka
df3628f958 ecc-sos: Use unsigned integer format for SSH. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-26 14:19:44 +09:00
NIIBE Yutaka
324dbe3eb5 ecc-sos: When reading private key, it's unsigned. 
* agent/findkey.c (agent_public_key_from_file): Use 'M' format.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-26 12:50:22 +09:00
NIIBE Yutaka
f3d07c634e agent: SSH clean up. 
* agent/command-ssh.c (ssh_receive_key): Use sexp_key_construct for
EdDSA.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-26 11:53:56 +09:00
NIIBE Yutaka
cbf30c1da9 ecc-sos: Backport master change for ECDH. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-25 14:20:04 +09:00
NIIBE Yutaka
bdf0fb3158 Revert "ecc-sos: Fix SOS handling in do_unprotect." 
This reverts commit 43c0c19fcae57529ea57079e034827372ed0b2b7.
 2020-05-25 14:03:46 +09:00
NIIBE Yutaka
43c0c19fca ecc-sos: Fix SOS handling in do_unprotect. 
* agent/cvt-openpgp.c (do_unprotect): Exclude the case when
the first byte is zero.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-20 18:33:51 +09:00
NIIBE Yutaka
bc3d003e00 ecc-sos: Avoid using gcry_mpi_print and gcry_mpi_scan. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-20 15:15:44 +09:00
NIIBE Yutaka
cea6925fa4 ecc-sos: Fix ECDH. 
* g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Fix deallocation.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-20 12:03:07 +09:00
NIIBE Yutaka
0691234951 agent: Don't use gcry_mpi_scan when not needed. 
* agent/pksign.c (do_encode_md): Use %b to build sexp.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-19 11:35:52 +09:00
NIIBE Yutaka
705954149b ecc-sos: Fix exporting secret key for SOS. 
* g10/export.c (transfer_format_to_openpgp): Use SOS.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-19 11:17:02 +09:00
NIIBE Yutaka
37aa23c55c ecc-sos: Fix gpg-agent for SOS handling. 
* agent/cvt-openpgp.c (scan_pgp_format): New.
(do_unprotect): Fix NBITS in SOS.  Use scan_pgp_format.
(convert_from_openpgp_main): Always use opaque MPI.
Use GCRYMPI_FLAG_USER1 for encrypted data.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-18 15:45:31 +09:00
NIIBE Yutaka
1e079f4601 ecc-sos: gpg-agent access ECC public key as opaque string. 
* agent/cvt-openpgp.c (extract_private_key): Use "/q" for public key.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-14 16:45:15 +09:00
NIIBE Yutaka
8513ab8bf3 ecc-sos: Use opaque for key from agent. 
* g10/export.c (cleartext_secret_key_to_openpgp): Use /q.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-14 14:56:23 +09:00
NIIBE Yutaka
93cefe9497 ecc-sos: Compatible mode for SOS. 
* g10/build-packet.c (sos_write): Add an argument COMPAT.  When
COMPAT=1, NBITS specifies number of bits when interpreted as MPI,
except the case when the first octet is zero.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-14 14:28:39 +09:00
NIIBE Yutaka
58ad686bfe ecc-sos: No need to expose sos_write. 
* g10/build-packet.c (sos_write): Rename from gpg_sos_write.
* g10/packet.h (gpg_sos_write): Remove.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-14 14:10:23 +09:00
NIIBE Yutaka
e02347b2ab ecc-sos: Clean up use of mpi_get_opaque. 
* g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Tidy up.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-12 13:42:07 +09:00
NIIBE Yutaka
e6c975280a ecc-sos: Remove zero-octet removal on write. 
* g10/build-packet.c (gpg_mpi_write): Don't remove zero bits.
* g10/packet.h (CALC_NBITS): Remove.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-08 11:42:20 +09:00
NIIBE Yutaka
70af2165ec ecc-sos: Fix gpg_mpi_write for opaque bit string. 
* g10/build-packet.c (gpg_mpi_write): Handle opaque bit string
when it's has exact number of bits.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 19:00:38 +09:00
NIIBE Yutaka
4cc4ff03a2 ecc-sos: Fix reading SEXP from agent. 
* g10/keygen.c (ecckey_from_sexp): Use GCRYMPI_FMT_OPAQUE.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 13:12:09 +09:00
NIIBE Yutaka
a9b31fc3e4 ecc-sos: Fix parsing key for EdDSA/ECDH. 
* g10/parse-packet.c (parse_key): Read by sos_read.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 11:56:28 +09:00
NIIBE Yutaka
ed4c1e213a ecc-sos: public key is MPI with the prefix 0x40. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
f27a581090 sos: don't change NBITS. 
For SOS, an ECC point with prefix 0x40 can be represented in two ways.
One for 0x40 interpreted as 7-bit, another as 8-bit (MSB is zero).

This matters for fingerprint computation, so, the representation
should be preserved, or we should use another flag to hold the
difference in the representation...

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
638328a33d sos: Fix fingerprint computation. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
f031b0fb6c agent: Fix converting to OpenPGP. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
3fae9540c6 Fix exporting key for ECC. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
0e40b033b8 gpg: Fix for the condition calling gpg_sos_write. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
5b094067f7 gpg: Use opaque MPI for shared point. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
b73fef0376 gpg: Implement the fix-up of zero for SOS. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
ac977526ac gpg: Use opaque MPI for ECDH. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
c31fd44737 gpg: Use GCRYMPI_FLAG_USER2 for SOS, and hash_public_key with that. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:08 +09:00
NIIBE Yutaka
93bcc87bd0 Add sos_read. 
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:07 +09:00
NIIBE Yutaka
120f4e8c67 gpg: Use opaque byte MPI interface for ECC key. 
* g10/keygen.c (ecckey_from_sexp): Parse by GCRYMPI_FMT_OPAQUE.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:07 +09:00
NIIBE Yutaka
2096965c53 gpg: Introduce SOS (Simply Octet String) support. 
* g10/build-packet.c (gpg_sos_write): New.
(do_key): Use gpg_sos_write.
(do_signature): Use gpg_sos_write for EdDSA.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
 2020-05-04 10:57:07 +09:00
Werner Koch
5da6925a33
sm: Add support to export ECC private keys. 
* sm/minip12.c [TEST]: Remove test code.  Include util.h, tlv.h. and
openpgpdefs.h.  Remove the class and tag constants and replace them by
those from tlv.h.
(builder_add_oid, builder_add_mpi): New.
(build_key_sequence): Rename to ...
(build_rsa_key_sequence): this.
(build_ecc_key_sequence): New.
(p12_build): Call RSA or ECC builder.
(p12_raw_build): Ditto.
* sm/export.c (gpgsm_p12_export): Use correct armor header for ECC.
(sexp_to_kparms): Support ECC.

* sm/t-minip12.c: New to replace the former TEST code in minip12.h.
--

GnuPG-bug-id: 4921
 2020-04-27 19:54:39 +02:00
Werner Koch
5ea878274e
common: Add an easy to use DER builder. 
* common/tlv-builder.c: New.
* common/tlv.c: Remove stuff only used by GnuPG 1.
(put_tlv_to_membuf, get_tlv_length): Move to ...
* common/tlv-builder.c: here.
* common/tlv.h (tlv_builder_t): New.
--

Such code should actually go into libksba and we will eventually do
that.  However, for now it is easier to keep it here.

Signed-off-by: Werner Koch <wk@gnupg.org>
 2020-04-24 15:37:48 +02:00
Werner Koch
c03f80dc19
sm: Minor debug output format changes. 
--
 2020-04-23 10:00:18 +02:00
Werner Koch
95d83cf906
sm: Support decryption of ECDH data. 
* sm/decrypt.c: Include tlv.h.
(string_from_gcry_buffer): New.
(hash_ecc_cms_shared_info): New.
(ecdh_decrypt): New.
(prepare_decryption): Support ECDH.  Add arg pk_algo.
(gpgsm_decrypt): Lift some variables from an inner code block.
--

Note: This has only been tested with a single messages created by
OpenSSL and taken from the Mozilla bug tracker.  In particular the
code to included UserKeyingMaterial (ukm) has not been tested.

GnuPG-bug-id: 4098
Signed-off-by: Werner Koch <wk@gnupg.org>
 2020-04-23 09:59:13 +02:00
Werner Koch
5d015b38eb
common: Add functions to help create DER objects. 
* common/tlv.c (put_tlv_to_membuf): New.
(get_tlv_length): New.
* common/tlv.h: Include membuf.h.

Signed-off-by: Werner Koch <wk@gnupg.org>
 2020-04-23 09:51:15 +02:00
Werner Koch
8dfef5197a
sm: Support import of PKCS#12 encoded ECC private keys. 
* sm/minip12.c: Include ksba.h.
(oid_pcPublicKey): New const.
(parse_bag_data): Add arg 'r-curve'.  Support parsing of ECC private
keys.
(p12_parse): Add arg 'r_curve'.
* sm/import.c (parse_p12): Support ECC import.
--

GnuPG-bug-id: 4921
Signed-off-by: Werner Koch <wk@gnupg.org>
 2020-04-21 21:05:39 +02:00