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Add key export on successful key agreement

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More sanity checks on key coming out of key agreement.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2024-11-13 18:27:06 +00:00
parent 7267e56189
commit 66d7bcbef1
1 changed files with 30 additions and 0 deletions
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30
tests/src/psa_exercise_key.c
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@ -693,7 +693,13 @@ psa_status_t mbedtls_test_psa_raw_key_agreement_with_self(
size_t public_key_length;
uint8_t output[1024];
size_t output_length;
uint8_t *exported = NULL;
size_t exported_size = 0;
size_t exported_length = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_attributes_t export_attributes = PSA_KEY_ATTRIBUTES_INIT;
mbedtls_svc_key_id_t shared_secret_id = MBEDTLS_SVC_KEY_ID_INIT;
psa_key_attributes_t shared_secret_attributes = PSA_KEY_ATTRIBUTES_INIT;
@ -746,6 +752,28 @@ psa_status_t mbedtls_test_psa_raw_key_agreement_with_self(
if (key_destroyable && status == PSA_ERROR_INVALID_HANDLE) {
/* The key has been destroyed. */
status = PSA_SUCCESS;
goto exit;
} else if (status == PSA_SUCCESS) {
status = psa_get_key_attributes(shared_secret_id, &export_attributes);
if (key_destroyable && status == PSA_ERROR_INVALID_HANDLE) {
/* The key has been destroyed. */
status = PSA_SUCCESS;
goto exit;
}
exported_size = PSA_EXPORT_KEY_OUTPUT_SIZE(psa_get_key_type(&export_attributes),
psa_get_key_bits(&export_attributes));
TEST_CALLOC(exported, exported_size);
status = psa_export_key(shared_secret_id, exported, exported_size, &exported_length);
if (key_destroyable && status == PSA_ERROR_INVALID_HANDLE) {
/* The key has been destroyed. */
status = PSA_SUCCESS;
}
PSA_ASSERT(status);
}
exit:
@ -754,12 +782,14 @@ exit:
* thus reset them as required.
*/
psa_reset_key_attributes(&attributes);
psa_reset_key_attributes(&export_attributes);
/* Make sure to reset and free derived key attributes and slot. */
psa_reset_key_attributes(&shared_secret_attributes);
psa_destroy_key(shared_secret_id);
mbedtls_free(public_key);
mbedtls_free(exported);
return status;
}