mbedtls_ecp_write_key: no FEATURE_UNAVAILABLE error

When exporting a key, MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE should not happen.
This error indicates that the curve is not supported, but that would prevent
the creation of the key.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2024-02-19 13:24:41 +01:00
parent 0315123cfb
commit 5bb04e03ac
2 changed files with 1 additions and 3 deletions

View File

@ -1339,8 +1339,6 @@ int mbedtls_ecp_read_key(mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key,
* \return \c 0 on success.
* \return #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL if the \p key
representation is larger than the available space in \p buf.
* \return #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the operation for
* the group is not implemented.
* \return Another negative error code on different kinds of failure.
*/
int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,

View File

@ -3305,7 +3305,7 @@ cleanup:
int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,
unsigned char *buf, size_t buflen)
{
int ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
#if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
if (mbedtls_ecp_get_type(&key->grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) {