Add driver wrapper function for raw key agreement, along with test call for transparent drivers.
Signed-off-by: Aditya Deshpande <aditya.deshpande@arm.com>
diff --git a/tests/include/test/drivers/key_agreement.h b/tests/include/test/drivers/key_agreement.h
new file mode 100644
index 0000000..57de81a
--- /dev/null
+++ b/tests/include/test/drivers/key_agreement.h
@@ -0,0 +1,71 @@
+/*
+ * Test driver for key agreement functions.
+ */
+/* Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef PSA_CRYPTO_TEST_DRIVERS_KEY_AGREEMENT_H
+#define PSA_CRYPTO_TEST_DRIVERS_KEY_AGREEMENT_H
+
+#include "mbedtls/build_info.h"
+
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+#include <psa/crypto_driver_common.h>
+
+typedef struct {
+ /* If non-null, on success, copy this to the output. */
+ void *forced_output;
+ size_t forced_output_length;
+ /* If not PSA_SUCCESS, return this error code instead of processing the
+ * function call. */
+ psa_status_t forced_status;
+ /* Count the amount of times one of the signature driver functions is called. */
+ unsigned long hits;
+} mbedtls_test_driver_key_agreement_hooks_t;
+
+#define MBEDTLS_TEST_DRIVER_KEY_AGREEMENT_INIT { NULL, 0, PSA_SUCCESS, 0 }
+static inline mbedtls_test_driver_key_agreement_hooks_t
+ mbedtls_test_driver_key_agreement_hooks_init( void )
+{
+ const mbedtls_test_driver_key_agreement_hooks_t
+ v = MBEDTLS_TEST_DRIVER_KEY_AGREEMENT_INIT;
+ return( v );
+}
+
+psa_status_t mbedtls_test_transparent_key_agreement(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *peer_key,
+ size_t peer_key_length,
+ uint8_t *shared_secret,
+ size_t shared_secret_size,
+ size_t *shared_secret_length );
+
+psa_status_t mbedtls_test_opaque_key_agreement(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *peer_key,
+ size_t peer_key_length,
+ uint8_t *shared_secret,
+ size_t shared_secret_size,
+ size_t *shared_secret_length );
+
+#endif /*PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_TEST_DRIVERS_KEY_AGREEMENT_H */
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diff --git a/tests/include/test/drivers/test_driver.h b/tests/include/test/drivers/test_driver.h
index 098b21a..0bfeb66 100644
--- a/tests/include/test/drivers/test_driver.h
+++ b/tests/include/test/drivers/test_driver.h
@@ -29,5 +29,6 @@
#include "test/drivers/key_management.h"
#include "test/drivers/signature.h"
#include "test/drivers/asymmetric_encryption.h"
+#include "test/drivers/key_agreement.h"
#endif /* PSA_CRYPTO_TEST_DRIVER_H */
diff --git a/tests/src/drivers/test_driver_key_agreement.c b/tests/src/drivers/test_driver_key_agreement.c
new file mode 100644
index 0000000..40681c3
--- /dev/null
+++ b/tests/src/drivers/test_driver_key_agreement.c
@@ -0,0 +1,73 @@
+/*
+ * Test driver for key agreement functions.
+ */
+/* Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <test/helpers.h>
+
+#include "psa/crypto.h"
+#include "psa_crypto_core.h"
+
+#include "test/drivers/key_agreement.h"
+#include "test/drivers/test_driver.h"
+
+#include <string.h>
+
+#if defined(MBEDTLS_PSA_CRYPTO_DRIVERS) && defined(PSA_CRYPTO_DRIVER_TEST)
+
+mbedtls_test_driver_key_agreement_hooks_t
+ mbedtls_test_driver_key_agreement_hooks = MBEDTLS_TEST_DRIVER_KEY_AGREEMENT_INIT;
+
+psa_status_t mbedtls_test_transparent_key_agreement(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *peer_key,
+ size_t peer_key_length,
+ uint8_t *shared_secret,
+ size_t shared_secret_size,
+ size_t *shared_secret_length )
+{
+ if( mbedtls_test_driver_key_agreement_hooks.forced_status != PSA_SUCCESS )
+ return( mbedtls_test_driver_key_agreement_hooks.forced_status );
+
+ if( mbedtls_test_driver_key_agreement_hooks.forced_output != NULL )
+ {
+ if( mbedtls_test_driver_key_agreement_hooks.forced_output_length > shared_secret_size )
+ return( PSA_ERROR_BUFFER_TOO_SMALL );
+
+ memcpy( shared_secret, mbedtls_test_driver_key_agreement_hooks.forced_output,
+ mbedtls_test_driver_key_agreement_hooks.forced_output_length );
+ *shared_secret_length = mbedtls_test_driver_key_agreement_hooks.forced_output_length;
+
+ return( PSA_SUCCESS );
+ }
+
+ return( psa_key_agreement_raw_builtin(
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ peer_key,
+ peer_key_length,
+ shared_secret,
+ shared_secret_size,
+ shared_secret_length ) );
+}
+
+#endif /* MBEDTLS_PSA_CRYPTO_DRIVERS && PSA_CRYPTO_DRIVER_TEST */
\ No newline at end of file