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| author | Werner Koch <wk@gnupg.org> | 2013-03-15 14:43:19 +0100 |
|---|---|---|
| committer | Werner Koch <wk@gnupg.org> | 2013-03-15 14:53:42 +0100 |
| commit | 229f3219f80c9369ed9624242c0436ae6d293201 (patch) | |
| tree | 1eaa99a11af69b72dc6c96d1222c4d1ffb0c4228 /src/context.c | |
| parent | e005629bd7bebb3e13945645c6e1230b44ab16a2 (diff) | |
| download | libgcrypt-229f3219f80c9369ed9624242c0436ae6d293201.tar.gz | |
mpi: Add functions to manipulate an EC context.
* src/gcrypt.h.in (gcry_mpi_ec_p_new): Remove.
(gcry_mpi_ec_new): New.
(gcry_mpi_ec_get_mpi): New.
(gcry_mpi_ec_get_point): New.
(gcry_mpi_ec_set_mpi): New.
(gcry_mpi_ec_set_point): New.
* src/visibility.c (gcry_mpi_ec_p_new): Remove.
* mpi/ec.c (_gcry_mpi_ec_p_new): Make it an internal function and
change to return an error code.
(_gcry_mpi_ec_get_mpi): New.
(_gcry_mpi_ec_get_point): New.
(_gcry_mpi_ec_set_mpi): New.
(_gcry_mpi_ec_set_point): New.
* src/mpi.h: Add new prototypes.
* src/ec-context.h: New.
* mpi/ec.c: Include that header.
(mpi_ec_ctx_s): Move to ec-context.h, add new fields, and put some
fields into an inner struct.
(point_copy): New.
* cipher/ecc.c (fill_in_curve): Allow passing NULL for R_NBITS.
(mpi_from_keyparam, point_from_keyparam): New.
(_gcry_mpi_ec_new): New.
* tests/t-mpi-point.c (test-curve): New.
(ec_p_new): New. Use it instead of the removed gcry_mpi_ec_p_new.
(get_and_cmp_mpi, get_and_cmp_point): New.
(context_param): New test.
(basic_ec_math_simplified): New test.
(main): Call new tests.
* src/context.c (_gcry_ctx_get_pointer): Check for a NULL CTX.
--
gcry_mpi_ec_p_new() was a specialized version of the more general new
gcry_mpi_ec_new(). It was added to master only a few days ago, thus
there should be no problem to remove it. A replacement can easily be
written (cf. t-mpi-point.c).
Note that gcry_mpi_ec_set_mpi and gcry_mpi_ec_set_point have not yet
been tested.
Diffstat (limited to 'src/context.c')
| -rw-r--r-- | src/context.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/context.c b/src/context.c index ae991c52..2c02c9c4 100644 --- a/src/context.c +++ b/src/context.c @@ -86,7 +86,7 @@ _gcry_ctx_alloc (int type, size_t length, void (*deinit)(void*)) void * _gcry_ctx_get_pointer (gcry_ctx_t ctx, int type) { - if (memcmp (ctx->magic, CTX_MAGIC, CTX_MAGIC_LEN)) + if (!ctx || memcmp (ctx->magic, CTX_MAGIC, CTX_MAGIC_LEN)) log_fatal ("bad pointer %p passed to _gcry_ctx_get_pointer\n", ctx); if (ctx->type != type) log_fatal ("wrong context type %d request for context %p of type %d\n", |