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Group memory allocations earlier

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Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott
2023-05-16 15:51:23 +01:00
parent 34b08e5005
commit 235c1947fb
1 changed files with 7 additions and 7 deletions
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14
library/ecp_curves.c
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@ -5508,6 +5508,13 @@ int mbedtls_ecp_mod_p448(mbedtls_mpi_uint *X, size_t X_limbs)
return MBEDTLS_ERR_ECP_ALLOC_FAILED; return MBEDTLS_ERR_ECP_ALLOC_FAILED;
} }
mbedtls_mpi_uint *Q = mbedtls_calloc(Q_limbs, ciL);
if (Q == NULL) {
ret = MBEDTLS_ERR_ECP_ALLOC_FAILED;
goto cleanup;
}
/* M = A1 */ /* M = A1 */
memset(M, 0, (M_limbs * ciL)); memset(M, 0, (M_limbs * ciL));
@ -5524,13 +5531,6 @@ int mbedtls_ecp_mod_p448(mbedtls_mpi_uint *X, size_t X_limbs)
(void) mbedtls_mpi_core_add(X, X, M, M_limbs); (void) mbedtls_mpi_core_add(X, X, M, M_limbs);
/* Q = B1, N += B1 */ /* Q = B1, N += B1 */
mbedtls_mpi_uint *Q = mbedtls_calloc(Q_limbs, ciL);
if (Q == NULL) {
ret = MBEDTLS_ERR_ECP_ALLOC_FAILED;
goto cleanup;
}
memcpy(Q, M, (Q_limbs * ciL)); memcpy(Q, M, (Q_limbs * ciL));
mbedtls_mpi_core_shift_r(Q, Q_limbs, 224); mbedtls_mpi_core_shift_r(Q, Q_limbs, 224);