Plug in the entry point for public key export through driver
Including test.
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/library/psa_crypto_driver_wrappers.c b/library/psa_crypto_driver_wrappers.c
index 4040b36..c3ea6f1 100644
--- a/library/psa_crypto_driver_wrappers.c
+++ b/library/psa_crypto_driver_wrappers.c
@@ -438,6 +438,59 @@
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
+psa_status_t psa_driver_wrapper_export_public_key( const psa_key_slot_t *slot,
+ uint8_t *data,
+ size_t data_size,
+ size_t *data_length )
+{
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+ psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
+ psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
+ psa_key_attributes_t attributes = {
+ .core = slot->attr
+ };
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = test_transparent_export_public_key( &attributes,
+ slot->data.key.data,
+ slot->data.key.bytes,
+ data,
+ data_size,
+ data_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+ /* Fell through, meaning no accelerator supports this operation */
+ return( PSA_ERROR_NOT_SUPPORTED );
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
+ return( test_opaque_export_public_key( &attributes,
+ slot->data.key.data,
+ slot->data.key.bytes,
+ data,
+ data_size,
+ data_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ return( status );
+ }
+#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ (void) slot;
+ (void) data;
+ (void) data_size;
+ (void) data_length;
+ return( PSA_ERROR_NOT_SUPPORTED );
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+}
+
/*
* Cipher functions
*/