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Remove MBEDTLS_ECP_MAX_MPI_BYTES macro

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Remove MBEDTLS_ECP_MAX_MPI_BYTES macro as
it's not needed anymore.It was added when
memcpy was being used but now that
mbedtls_mpi_write_binary() is being used
it can handle copying a large buffer filled
with leading zeros into a smaller buffer.

Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy 2024-11-18 17:38:59 +00:00
parent e0dac22cf1
commit db0c4a4b2c
2 changed files with 1 additions and 3 deletions
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2
tf-psa-crypto/core/psa_crypto.c
View File

@ -8184,7 +8184,7 @@ psa_status_t psa_generate_key_iop_complete(
{
#if defined(MBEDTLS_ECP_RESTARTABLE)
psa_status_t status;
uint8_t key_data[MBEDTLS_ECP_MAX_MPI_BYTES] = { 0 };
uint8_t key_data[MBEDTLS_ECP_MAX_BYTES] = { 0 };
size_t key_len = 0;
if (operation->id == 0 || operation->error_occurred) {

2
tf-psa-crypto/drivers/builtin/include/mbedtls/ecp.h
View File

@ -345,8 +345,6 @@ mbedtls_ecp_group;
#define MBEDTLS_ECP_MAX_BYTES ((MBEDTLS_ECP_MAX_BITS + 7) / 8)
#define MBEDTLS_ECP_MAX_PT_LEN (2 * MBEDTLS_ECP_MAX_BYTES + 1)
#define MBEDTLS_ECP_MAX_MPI_BYTES ((MBEDTLS_ECP_MAX_BYTES + sizeof(mbedtls_mpi_uint)) & \
~(sizeof(mbedtls_mpi_uint)-1))
#if defined(MBEDTLS_ECP_RESTARTABLE)