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Functions to convert raw residues to/from the modulus representation

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Test cases will be generated automatically by a subsequent commit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2022-12-20 19:21:17 +01:00
parent 7a708fd49f
commit 1e2a4d4089
3 changed files with 116 additions and 0 deletions
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52
tests/suites/test_suite_bignum_mod_raw.function
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@@ -520,7 +520,59 @@ exit:
/* END MERGE SLOT 5 */
/* BEGIN MERGE SLOT 6 */
/* BEGIN_CASE */
void mpi_mod_raw_canonical_to_modulus_rep( const char *input_N, int rep,
const char *input_A,
const char *input_X )
{
mbedtls_mpi_mod_modulus N;
mbedtls_mpi_mod_modulus_init( &N );
mbedtls_mpi_uint *A = NULL;
size_t A_limbs = 0;;
mbedtls_mpi_uint *X = NULL;
size_t X_limbs = 0;
TEST_EQUAL( 0, mbedtls_test_read_mpi_modulus( &N, input_N, rep ) );
TEST_EQUAL( 0, mbedtls_test_read_mpi_core( &A, &A_limbs, input_A ) );
TEST_EQUAL( 0, mbedtls_test_read_mpi_core( &X, &X_limbs, input_X ) );
TEST_EQUAL( 0, mbedtls_mpi_mod_raw_canonical_to_modulus_rep( A, &N ) );
ASSERT_COMPARE( A, A_limbs * sizeof( mbedtls_mpi_uint ),
X, X_limbs * sizeof( mbedtls_mpi_uint ) );
exit:
mbedtls_test_mpi_mod_modulus_free_with_limbs( &N );
mbedtls_free( A );
mbedtls_free( X );
}
/* END_CASE */
/* BEGIN_CASE */
void mpi_mod_raw_modulus_to_canonical_rep( const char *input_N, int rep,
const char *input_A,
const char *input_X )
{
mbedtls_mpi_mod_modulus N;
mbedtls_mpi_mod_modulus_init( &N );
mbedtls_mpi_uint *A = NULL;
size_t A_limbs = 0;;
mbedtls_mpi_uint *X = NULL;
size_t X_limbs = 0;
TEST_EQUAL( 0, mbedtls_test_read_mpi_modulus( &N, input_N, rep ) );
TEST_EQUAL( 0, mbedtls_test_read_mpi_core( &A, &A_limbs, input_A ) );
TEST_EQUAL( 0, mbedtls_test_read_mpi_core( &X, &X_limbs, input_X ) );
TEST_EQUAL( 0, mbedtls_mpi_mod_raw_modulus_to_canonical_rep( A, &N ) );
ASSERT_COMPARE( A, A_limbs * sizeof( mbedtls_mpi_uint ),
X, X_limbs * sizeof( mbedtls_mpi_uint ) );
exit:
mbedtls_test_mpi_mod_modulus_free_with_limbs( &N );
mbedtls_free( A );
mbedtls_free( X );
}
/* END_CASE */
/* END MERGE SLOT 6 */
/* BEGIN MERGE SLOT 7 */