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Refactor and improve iop export public-key setup and abort APIs

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Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy
2024-12-09 17:59:42 +00:00
parent 3c46535ff9
commit 1daabc113b
1 changed files with 9 additions and 17 deletions
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26
tf-psa-crypto/core/psa_crypto.c
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@@ -1676,6 +1676,8 @@ static psa_status_t psa_export_public_key_iop_abort_internal(psa_export_public_k
status = mbedtls_psa_ecp_export_public_key_iop_abort(&operation->ctx);
memset(&operation->ctx, 0, sizeof(operation->ctx));
operation->id = 0;
return status;
@@ -1694,9 +1696,8 @@ psa_status_t psa_export_public_key_iop_setup(psa_export_public_key_iop_t *operat
#if defined(MBEDTLS_ECP_RESTARTABLE)
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
size_t key_size = 0;
psa_key_attributes_t private_key_attributes;
psa_key_type_t private_key_type;
psa_key_attributes_t key_attributes;
psa_key_type_t key_type;
psa_key_slot_t *slot = NULL;
if (operation->id != 0 || operation->error_occurred) {
@@ -1713,31 +1714,22 @@ psa_status_t psa_export_public_key_iop_setup(psa_export_public_key_iop_t *operat
goto exit;
}
private_key_attributes = slot->attr;
key_attributes = slot->attr;
private_key_type = psa_get_key_type(&private_key_attributes);
key_type = psa_get_key_type(&key_attributes);
if (!PSA_KEY_TYPE_IS_KEY_PAIR(private_key_type) &&
!PSA_KEY_TYPE_IS_PUBLIC_KEY(private_key_type)) {
if (!PSA_KEY_TYPE_IS_ASYMMETRIC(key_type)) {
status = PSA_ERROR_INVALID_ARGUMENT;
goto exit;
}
if (!PSA_KEY_TYPE_IS_ECC_KEY_PAIR(private_key_type) &&
!PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY(private_key_type)) {
status = PSA_ERROR_NOT_SUPPORTED;
goto exit;
}
key_size = PSA_EXPORT_KEY_OUTPUT_SIZE(private_key_type,
psa_get_key_bits(&private_key_attributes));
if (key_size == 0) {
if (!PSA_KEY_TYPE_IS_ECC(key_type)) {
status = PSA_ERROR_NOT_SUPPORTED;
goto exit;
}
status = mbedtls_psa_ecp_export_public_key_iop_setup(&operation->ctx, slot->key.data,
slot->key.bytes, &private_key_attributes);
slot->key.bytes, &key_attributes);
exit:
unlock_status = psa_unregister_read_under_mutex(slot);