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Add an explicit mbedtls_mpi_core_montmul_working_limbs() function

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Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
This commit is contained in:
Tom Cosgrove
2022-12-12 17:06:27 +00:00
parent 30f3b4d601
commit 28ff92cc3a
5 changed files with 38 additions and 3 deletions
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4
library/bignum_mod_raw.c
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@ -183,7 +183,7 @@ int mbedtls_mpi_mod_raw_to_mont_rep( mbedtls_mpi_uint *X,
const mbedtls_mpi_mod_modulus *m )
{
mbedtls_mpi_uint *T;
const size_t t_limbs = m->limbs * 2 + 1;
const size_t t_limbs = mbedtls_mpi_core_montmul_working_limbs( m->limbs );
if( ( T = (mbedtls_mpi_uint *) mbedtls_calloc( t_limbs, ciL ) ) == NULL )
return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
@ -200,7 +200,7 @@ int mbedtls_mpi_mod_raw_from_mont_rep( mbedtls_mpi_uint *X,
const mbedtls_mpi_mod_modulus *m )
{
const mbedtls_mpi_uint one = 1;
const size_t t_limbs = m->limbs * 2 + 1;
const size_t t_limbs = mbedtls_mpi_core_montmul_working_limbs( m->limbs );
mbedtls_mpi_uint *T;
if( ( T = (mbedtls_mpi_uint *) mbedtls_calloc( t_limbs, ciL ) ) == NULL )