crypto-tester: Use the plugin feature key size to benchmark crypters/aeads

We previously didn't pass the key size during algorithm registration, but this
resulted in benchmarking with the "default" key size the crypter uses when
passing 0 as key size.

src/libstrongswan/crypto/crypto_factory.c

@@ -439,14 +439,14 @@ static void add_entry(private_crypto_factory_t *this, linked_list_t *list,
 }
 
 METHOD(crypto_factory_t, add_crypter, bool,
-	private_crypto_factory_t *this, encryption_algorithm_t algo,
+	private_crypto_factory_t *this, encryption_algorithm_t algo, size_t key_size,
 	const char *plugin_name, crypter_constructor_t create)
 {
 	u_int speed = 0;
 
 	if (!this->test_on_add ||
-		this->tester->test_crypter(this->tester, algo, 0, create,
+		this->tester->test_crypter(this->tester, algo, key_size, create,
-								   this->bench ? &speed : NULL,	plugin_name))
+								   this->bench ? &speed : NULL, plugin_name))
 	{
 		add_entry(this, this->crypters, algo, plugin_name, speed, create);
 		return TRUE;
@@ -476,13 +476,13 @@ METHOD(crypto_factory_t, remove_crypter, void,
 }
 
 METHOD(crypto_factory_t, add_aead, bool,
-	private_crypto_factory_t *this, encryption_algorithm_t algo,
+	private_crypto_factory_t *this, encryption_algorithm_t algo, size_t key_size,
 	const char *plugin_name, aead_constructor_t create)
 {
 	u_int speed = 0;
 
 	if (!this->test_on_add ||
-		this->tester->test_aead(this->tester, algo, 0, 0, create,
+		this->tester->test_aead(this->tester, algo, key_size, 0, create,
 								this->bench ? &speed : NULL, plugin_name))
 	{
 		add_entry(this, this->aeads, algo, plugin_name, speed, create);

src/libstrongswan/crypto/crypto_factory.h

@@ -162,12 +162,14 @@ struct crypto_factory_t {
 	 * Register a crypter constructor.
 	 *
 	 * @param algo			algorithm to constructor
+	 * @param key size		key size to peform benchmarking for
 	 * @param plugin_name	plugin that registered this algorithm
 	 * @param create		constructor function for that algorithm
 	 * @return				TRUE if registered, FALSE if test vector failed
 	 */
 	bool (*add_crypter)(crypto_factory_t *this, encryption_algorithm_t algo,
-						const char *plugin_name, crypter_constructor_t create);
+						size_t key_size, const char *plugin_name,
+						crypter_constructor_t create);
 
 	/**
 	 * Unregister a crypter constructor.
@@ -187,12 +189,14 @@ struct crypto_factory_t {
 	 * Register a aead constructor.
 	 *
 	 * @param algo			algorithm to constructor
+	 * @param key size		key size to peform benchmarking for
 	 * @param plugin_name	plugin that registered this algorithm
 	 * @param create		constructor function for that algorithm
 	 * @return				TRUE if registered, FALSE if test vector failed
 	 */
 	bool (*add_aead)(crypto_factory_t *this, encryption_algorithm_t algo,
-					 const char *plugin_name, aead_constructor_t create);
+					 size_t key_size, const char *plugin_name,
+					 aead_constructor_t create);
 
 	/**
 	 * Register a signer constructor.

src/libstrongswan/crypto/crypto_tester.c

@@ -138,11 +138,11 @@ static u_int end_timing(struct timespec *start)
  * Benchmark a crypter
  */
 static u_int bench_crypter(private_crypto_tester_t *this,
-	encryption_algorithm_t alg, crypter_constructor_t create)
+	encryption_algorithm_t alg, crypter_constructor_t create, size_t key_size)
 {
 	crypter_t *crypter;
 
-	crypter = create(alg, 0);
+	crypter = create(alg, key_size);
 	if (crypter)
 	{
 		char iv[crypter->get_iv_size(crypter)];
@@ -280,8 +280,8 @@ failure:
 	{
 		if (failed)
 		{
-			DBG1(DBG_LIB,"disable %N[%s]: no key size supported",
+			DBG1(DBG_LIB,"disable %N[%s]: %zd byte key size not supported",
-				 encryption_algorithm_names, alg, plugin_name);
+				 encryption_algorithm_names, alg, plugin_name, key_size);
 			return FALSE;
 		}
 		else
@@ -296,9 +296,10 @@ failure:
 	{
 		if (speed)
 		{
-			*speed = bench_crypter(this, alg, create);
+			*speed = bench_crypter(this, alg, create, key_size);
-			DBG1(DBG_LIB, "enabled  %N[%s]: passed %u test vectors, %d points",
+			DBG1(DBG_LIB, "enabled  %N[%s]: passed %u test vectors, %d points "
-				 encryption_algorithm_names, alg, plugin_name, tested, *speed);
+				 "(%zd bit key)", encryption_algorithm_names, alg,
+				 plugin_name, tested, *speed, key_size * 8);
 		}
 		else
 		{
@@ -313,11 +314,11 @@ failure:
  * Benchmark an aead transform
  */
 static u_int bench_aead(private_crypto_tester_t *this,
-	encryption_algorithm_t alg, aead_constructor_t create)
+	encryption_algorithm_t alg, aead_constructor_t create, size_t key_size)
 {
 	aead_t *aead;
 
-	aead = create(alg, 0, 0);
+	aead = create(alg, key_size, 0);
 	if (aead)
 	{
 		char iv[aead->get_iv_size(aead)];
@@ -474,8 +475,8 @@ failure:
 	{
 		if (failed)
 		{
-			DBG1(DBG_LIB,"disable %N[%s]: no key size supported",
+			DBG1(DBG_LIB,"disable %N[%s]: %zd byte key size not supported",
-				 encryption_algorithm_names, alg, plugin_name);
+				 encryption_algorithm_names, alg, plugin_name, key_size);
 			return FALSE;
 		}
 		else
@@ -490,9 +491,10 @@ failure:
 	{
 		if (speed)
 		{
-			*speed = bench_aead(this, alg, create);
+			*speed = bench_aead(this, alg, create, key_size);
-			DBG1(DBG_LIB, "enabled  %N[%s]: passed %u test vectors, %d points",
+			DBG1(DBG_LIB, "enabled  %N[%s]: passed %u test vectors, %d points "
-				 encryption_algorithm_names, alg, plugin_name, tested, *speed);
+				 "(%zd bit key)", encryption_algorithm_names, alg,
+				 plugin_name, tested, *speed, key_size * 8);
 		}
 		else
 		{

src/libstrongswan/plugins/plugin_feature.c

@@ -437,10 +437,12 @@ bool plugin_feature_load(plugin_t *plugin, plugin_feature_t *feature,
 	{
 		case FEATURE_CRYPTER:
 			lib->crypto->add_crypter(lib->crypto, feature->arg.crypter.alg,
+								feature->arg.crypter.key_size,
 								name, reg->arg.reg.f);
 			break;
 		case FEATURE_AEAD:
 			lib->crypto->add_aead(lib->crypto, feature->arg.aead.alg,
+								feature->arg.aead.key_size,
 								name, reg->arg.reg.f);
 			break;
 		case FEATURE_SIGNER: