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Add ecp test function for mont mul and inv

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Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
This commit is contained in:
Xiaokang Qian 2023-04-21 09:45:16 +00:00
parent ff7a346201
commit 5e25f80d8a
1 changed files with 67 additions and 0 deletions
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67
tests/suites/test_suite_ecp.function
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@ -1550,3 +1550,70 @@ exit:
mbedtls_free(p); mbedtls_free(p);
} }
/* END_CASE */ /* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS */
void ecp_mod_mul_inv(char *input_A, int id, int ctype, int iret)
{
int ret;
mbedtls_mpi_mod_modulus m;
mbedtls_mpi_mod_modulus_init(&m);
mbedtls_mpi_mod_residue A = { NULL, 0 };
mbedtls_mpi_mod_residue A_inverse = { NULL, 0 };
mbedtls_mpi_mod_residue rX = { NULL, 0 };
mbedtls_mpi_uint *rX_raw = NULL;
mbedtls_mpi_uint *p_inverse = NULL;
mbedtls_mpi_uint *p = NULL;
mbedtls_mpi_uint *bufx = NULL;
mbedtls_mpi_uint Result = 1;
size_t p_limbs;
ret = mbedtls_ecp_modulus_setup(&m, id, ctype);
TEST_EQUAL(ret, iret);
TEST_EQUAL(mbedtls_test_read_mpi_core(&p, &p_limbs, input_A), 0);
TEST_EQUAL(0, mbedtls_mpi_mod_residue_setup(&A, &m, p, p_limbs));
if (ret == 0) {
/* Test for limb sizes */
TEST_EQUAL(m.limbs, p_limbs);
/* Test for validity of moduli by the presence of Montgomery consts */
TEST_ASSERT(m.rep.mont.mm != 0);
TEST_ASSERT(m.rep.mont.rr != NULL);
size_t limbs = m.limbs;
ASSERT_ALLOC(p_inverse, limbs);
TEST_EQUAL(0, mbedtls_mpi_mod_residue_setup(&A_inverse, &m, p_inverse, limbs));
ASSERT_ALLOC(rX_raw, limbs);
TEST_EQUAL(0, mbedtls_mpi_mod_residue_setup(&rX, &m, rX_raw, limbs));
TEST_EQUAL(0, mbedtls_mpi_mod_inv(&A_inverse, &A, &m));
TEST_EQUAL(mbedtls_mpi_mod_mul(&rX, &A, &A_inverse, &m), 0);
ASSERT_ALLOC(bufx, limbs);
TEST_EQUAL(mbedtls_mpi_mod_write(&rX, &m, (unsigned char *)bufx, p_limbs * sizeof(mbedtls_mpi_uint), MBEDTLS_MPI_MOD_EXT_REP_LE), 0);
TEST_EQUAL(memcmp(bufx, &Result, sizeof(mbedtls_mpi_uint)), 0);
/* Test for user free-ing allocated memory */
mbedtls_mpi_mod_modulus_free(&m);
}
exit:
mbedtls_mpi_mod_modulus_free(&m);
mbedtls_mpi_mod_residue_release(&A);
mbedtls_mpi_mod_residue_release(&A_inverse);
mbedtls_mpi_mod_residue_release(&rX);
mbedtls_free(p);
mbedtls_free(p_inverse);
mbedtls_free(rX_raw);
mbedtls_free(bufx);
}
/* END_CASE */