diff options
| author | Werner Koch <wk@gnupg.org> | 2013-09-07 10:06:46 +0200 |
|---|---|---|
| committer | Werner Koch <wk@gnupg.org> | 2013-09-25 17:06:05 +0200 |
| commit | d6683d2a6065986a9198d2d2eaa02c005b68cea4 (patch) | |
| tree | 20d4f5b0c7512ba955a5e6f9c97d962c989b0a49 /doc | |
| parent | 9a4447ccd1b90bcd701941e80a7f484a1825fcea (diff) | |
| download | libgcrypt-d6683d2a6065986a9198d2d2eaa02c005b68cea4.tar.gz | |
ecc: Allow the name "q@eddsa" to get/set the public key.
* cipher/ecc-curves.c (_gcry_ecc_get_mpi): Support "q@eddsa".
(_gcry_ecc_set_mpi): Support "q".
* cipher/ecc.c (eddsa_encodepoint): Rename to ...
(_gcry_ecc_eddsa_encodepoint): this and make global. Remove arg
MINLEN and take from context.
(eddsa_decodepoint): Rename to
(_gcry_ecc_eddsa_decodepoint): this and make global. Remove arg LEN
and take from context.
(sign_eddsa, verify_eddsa): Take B from context.
(ecc_sign, ecc_verify): Add hack to set DIALECT.
(_gcry_pk_ecc_get_sexp): Use _gcry_ecc_compute_public. Handle EdDSA.
* src/ec-context.h (mpi_ec_ctx_s): Add field NBITS.
* mpi/ec.c (ec_p_init): Init NBITS.
* tests/t-mpi-point.c (test_curve): Add Ed25519.
(sample_ed25519_q): New.
(context_param): Check new sample key.
(hex2buffer, hex2mpiopa): New.
(cmp_mpihex): Take care of opaque MPIs.
Signed-off-by: Werner Koch <wk@gnupg.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/gcrypt.texi | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/doc/gcrypt.texi b/doc/gcrypt.texi index 5d1be8dd..0590a264 100644 --- a/doc/gcrypt.texi +++ b/doc/gcrypt.texi @@ -4182,10 +4182,16 @@ modified, it is suggested to pass @code{1} to @var{copy}, so that the function guarantees that a modifiable copy of the MPI is returned. If @code{0} is used for @var{copy}, this function may return a constant flagged MPI. In any case @code{gcry_mpi_release} needs to be called -to release the result. For valid names @ref{ecc_keyparam}. If a -point parameter is requested it is returned as an uncompressed encoded -point. If the public key @code{q} is requested but only the private -key @code{d} is available, @code{q} will be recomputed on the fly. +to release the result. For valid names @ref{ecc_keyparam}. If the +public key @code{q} is requested but only the private key @code{d} is +available, @code{q} will be recomputed on the fly. If a point +parameter is requested it is returned as an uncompressed +encoded point unless these special names are used: +@table @var +@item q@@eddsa +Return an EdDSA style compressed point. This is only supported for +Twisted Edwards curves. +@end table @end deftypefun @deftypefun gcry_mpi_point_t gcry_mpi_ec_get_point ( @ |