eden-emu/mbedtls
15
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ecp_curves: Adjusted expected_width inputs to use BITS_TO_LIMBS macro.

Browse source 
Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
This commit is contained in:
Minos Galanakis 2023-06-27 14:03:35 +01:00
parent 93baf39095
commit c4e4958326
2 changed files with 24 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

15
library/bignum_mod_raw.c
View file

@ -131,18 +131,11 @@ void mbedtls_mpi_mod_raw_mul(mbedtls_mpi_uint *X,
mbedtls_mpi_uint *T)
{
/* Standard (A * B) multiplication stored into pre-allocated T
* buffer of fixed limb size of (2N + 1).
* buffer of fixed limb size of (2N + 1).
*
* The space may not not fully filled by when
* MBEDTLS_MPI_MOD_REP_OPT_RED is used, where we only need
* (2N) or (2N-1) limbs (depending on limb size and curve).
*
* The 521-bit Weierstrass curve is the only
* that which requires a limb size of (2N). */
const size_t T_limbs = (N->bits == 521) ?
BITS_TO_LIMBS(N->bits * 2) + 1 :
BITS_TO_LIMBS(N->bits * 2);
* The space may not not fully filled by when
* MBEDTLS_MPI_MOD_REP_OPT_RED is used. */
const size_t T_limbs = BITS_TO_LIMBS(N->bits) * 2;
switch (N->int_rep) {
case MBEDTLS_MPI_MOD_REP_MONTGOMERY:
mbedtls_mpi_core_montmul(X, A, B, N->limbs, N->p, N->limbs,