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bignum_mod_raw: Renamed m -> N in mbedtls_mpi_mod_raw_neg()

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Signed-off-by: Mihir Raj Singh <mihirrajsingh123@gmail.com>
This commit is contained in:
Mihir Raj Singh
2023-01-11 21:12:46 +05:30
parent b0354c5b71
commit 432cacf5c2
4 changed files with 105 additions and 110 deletions
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72
library/bignum_mod.c
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@ -34,10 +34,10 @@
#include "bignum_mod_raw.h"
#include "constant_time_internal.h"
int mbedtls_mpi_mod_residue_setup( mbedtls_mpi_mod_residue *r,
const mbedtls_mpi_mod_modulus *N,
mbedtls_mpi_uint *p,
size_t p_limbs )
int mbedtls_mpi_mod_residue_setup(mbedtls_mpi_mod_residue *r,
const mbedtls_mpi_mod_modulus *N,
mbedtls_mpi_uint *p,
size_t p_limbs)
{
if (p_limbs != N->limbs || !mbedtls_mpi_core_lt_ct(p, N->p, N->limbs)) {
return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
@ -59,7 +59,7 @@ void mbedtls_mpi_mod_residue_release(mbedtls_mpi_mod_residue *r)
r->p = NULL;
}
void mbedtls_mpi_mod_modulus_init( mbedtls_mpi_mod_modulus *N )
void mbedtls_mpi_mod_modulus_init(mbedtls_mpi_mod_modulus *N)
{
if (N == NULL) {
return;
@ -71,26 +71,24 @@ void mbedtls_mpi_mod_modulus_init( mbedtls_mpi_mod_modulus *N )
N->int_rep = MBEDTLS_MPI_MOD_REP_INVALID;
}
void mbedtls_mpi_mod_modulus_free( mbedtls_mpi_mod_modulus *N )
void mbedtls_mpi_mod_modulus_free(mbedtls_mpi_mod_modulus *N)
{
if (N == NULL) {
return;
}
switch( N->int_rep )
{
switch (N->int_rep) {
case MBEDTLS_MPI_MOD_REP_MONTGOMERY:
if (N->rep.mont.rr != NULL)
{
mbedtls_platform_zeroize( (mbedtls_mpi_uint *) N->rep.mont.rr,
N->limbs * sizeof(mbedtls_mpi_uint) );
mbedtls_free( (mbedtls_mpi_uint *)N->rep.mont.rr );
if (N->rep.mont.rr != NULL) {
mbedtls_platform_zeroize((mbedtls_mpi_uint *) N->rep.mont.rr,
N->limbs * sizeof(mbedtls_mpi_uint));
mbedtls_free((mbedtls_mpi_uint *) N->rep.mont.rr);
N->rep.mont.rr = NULL;
}
N->rep.mont.mm = 0;
break;
case MBEDTLS_MPI_MOD_REP_OPT_RED:
mbedtls_free( N->rep.ored );
mbedtls_free(N->rep.ored);
break;
case MBEDTLS_MPI_MOD_REP_INVALID:
break;
@ -138,22 +136,22 @@ cleanup:
return ret;
}
int mbedtls_mpi_mod_modulus_setup( mbedtls_mpi_mod_modulus *N,
const mbedtls_mpi_uint *p,
size_t p_limbs,
mbedtls_mpi_mod_rep_selector int_rep )
int mbedtls_mpi_mod_modulus_setup(mbedtls_mpi_mod_modulus *N,
const mbedtls_mpi_uint *p,
size_t p_limbs,
mbedtls_mpi_mod_rep_selector int_rep)
{
int ret = 0;
N->p = p;
N->limbs = p_limbs;
N->bits = mbedtls_mpi_core_bitlen( p, p_limbs );
N->bits = mbedtls_mpi_core_bitlen(p, p_limbs);
switch (int_rep) {
case MBEDTLS_MPI_MOD_REP_MONTGOMERY:
N->int_rep = int_rep;
N->rep.mont.mm = mbedtls_mpi_core_montmul_init( N->p );
ret = set_mont_const_square( &N->rep.mont.rr, N->p, N->limbs );
N->rep.mont.mm = mbedtls_mpi_core_montmul_init(N->p);
ret = set_mont_const_square(&N->rep.mont.rr, N->p, N->limbs);
break;
case MBEDTLS_MPI_MOD_REP_OPT_RED:
N->int_rep = int_rep;
@ -166,9 +164,8 @@ int mbedtls_mpi_mod_modulus_setup( mbedtls_mpi_mod_modulus *N,
exit:
if( ret != 0 )
{
mbedtls_mpi_mod_modulus_free( N );
if (ret != 0) {
mbedtls_mpi_mod_modulus_free(N);
}
return ret;
@ -351,11 +348,11 @@ int mbedtls_mpi_mod_random(mbedtls_mpi_mod_residue *X,
/* END MERGE SLOT 6 */
/* BEGIN MERGE SLOT 7 */
int mbedtls_mpi_mod_read( mbedtls_mpi_mod_residue *r,
const mbedtls_mpi_mod_modulus *N,
const unsigned char *buf,
size_t buflen,
mbedtls_mpi_mod_ext_rep ext_rep )
int mbedtls_mpi_mod_read(mbedtls_mpi_mod_residue *r,
const mbedtls_mpi_mod_modulus *N,
const unsigned char *buf,
size_t buflen,
mbedtls_mpi_mod_ext_rep ext_rep)
{
int ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
@ -374,17 +371,17 @@ int mbedtls_mpi_mod_read( mbedtls_mpi_mod_residue *r,
r->limbs = N->limbs;
ret = mbedtls_mpi_mod_raw_canonical_to_modulus_rep( r->p, N );
ret = mbedtls_mpi_mod_raw_canonical_to_modulus_rep(r->p, N);
cleanup:
return ret;
}
int mbedtls_mpi_mod_write( const mbedtls_mpi_mod_residue *r,
const mbedtls_mpi_mod_modulus *N,
unsigned char *buf,
size_t buflen,
mbedtls_mpi_mod_ext_rep ext_rep )
int mbedtls_mpi_mod_write(const mbedtls_mpi_mod_residue *r,
const mbedtls_mpi_mod_modulus *N,
unsigned char *buf,
size_t buflen,
mbedtls_mpi_mod_ext_rep ext_rep)
{
int ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
@ -403,10 +400,9 @@ int mbedtls_mpi_mod_write( const mbedtls_mpi_mod_residue *r,
}
}
ret = mbedtls_mpi_mod_raw_write( r->p, N, buf, buflen, ext_rep );
ret = mbedtls_mpi_mod_raw_write(r->p, N, buf, buflen, ext_rep);
if( N->int_rep == MBEDTLS_MPI_MOD_REP_MONTGOMERY )
{
if (N->int_rep == MBEDTLS_MPI_MOD_REP_MONTGOMERY) {
/* If this fails, the value of r is corrupted and we want to return
* this error (as opposed to the error code from the write above) to
* let the caller know. If it succeeds, we want to return the error