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Both compare the least significant limb 1 and the left limbs 0

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Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
This commit is contained in:
Xiaokang Qian 2023-05-18 03:04:26 +00:00
parent c1f5e54d2d
commit c8f677d33e
1 changed files with 9 additions and 5 deletions
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14
tests/suites/test_suite_ecp.function
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@ -1563,7 +1563,7 @@ void ecp_mod_mul_inv(char *input_A, int id, int ctype)
mbedtls_mpi_uint *A_inverse = NULL;
mbedtls_mpi_uint *A = NULL;
mbedtls_mpi_uint *bufx = NULL;
const mbedtls_mpi_uint one[2] = {1, 0};
const mbedtls_mpi_uint one[1] = { 1 };
mbedtls_mpi_mod_modulus_init(&m);
@ -1582,15 +1582,19 @@ void ecp_mod_mul_inv(char *input_A, int id, int ctype)
TEST_EQUAL(0, mbedtls_mpi_mod_residue_setup(&rX, &m, rX_raw, limbs));
/* Get inverse of A mode m, and multiply it with itself,
* to see whether the result equal to '1' */
* to see whether the result equal to '1' */
TEST_EQUAL(0, mbedtls_mpi_mod_inv(&rA_inverse, &rA, &m));
TEST_EQUAL(mbedtls_mpi_mod_mul(&rX, &rA, &rA_inverse, &m), 0);
ASSERT_ALLOC(bufx, limbs);
TEST_EQUAL(mbedtls_mpi_mod_write(&rX, &m, (unsigned char *) bufx,
limbs * sizeof(mbedtls_mpi_uint),
MBEDTLS_MPI_MOD_EXT_REP_LE), 0);
ASSERT_COMPARE(bufx, 2, one, 2);
limbs * ciL,
MBEDTLS_MPI_MOD_EXT_REP_LE), 0);
ASSERT_COMPARE(bufx, ciL, one, ciL);
/*Borrow the buffer of A to compare the left lims with 0 */
memset(A, 0, limbs * ciL);
ASSERT_COMPARE(&bufx[1], (limbs - 1) * ciL, A, (limbs - 1) * ciL);
exit: