Started implementing BLISS signature generation

src/libstrongswan/plugins/bliss/bliss_plugin.c

@@ -51,15 +51,11 @@ METHOD(plugin_t, get_features, int,
 		PLUGIN_REGISTER(PUBKEY, bliss_public_key_load, TRUE),
 			PLUGIN_PROVIDE(PUBKEY, KEY_BLISS),
 		/* signature schemes, private */
-		PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_BLISS_I_SHA256),
-			PLUGIN_DEPENDS(HASHER, HASH_SHA256),
-		PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_BLISS_IV_SHA384),
-			PLUGIN_DEPENDS(HASHER, HASH_SHA384),
+		PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_BLISS_WITH_SHA512),
+			PLUGIN_DEPENDS(HASHER, HASH_SHA512),
 		/* signature verification schemes */
-		PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_BLISS_I_SHA256),
-			PLUGIN_DEPENDS(HASHER, HASH_SHA256),
-		PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_BLISS_IV_SHA384),
-			PLUGIN_DEPENDS(HASHER, HASH_SHA384),
+		PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_BLISS_WITH_SHA512),
+			PLUGIN_DEPENDS(HASHER, HASH_SHA512),
 	};
 	*features = f;
 

src/libstrongswan/plugins/bliss/bliss_private_key.c

@@ -88,10 +88,10 @@ METHOD(private_key_t, sign, bool,
 {
 	switch (scheme)
 	{
-		case SIGN_BLISS_I_SHA256:
-			return FALSE;
-		case SIGN_BLISS_IV_SHA384:
-			return FALSE;
+		case SIGN_BLISS_WITH_SHA512:
+			DBG2(DBG_LIB, "empty signature");
+			*signature = chunk_empty;
+			return TRUE;
 		default:
 			DBG1(DBG_LIB, "signature scheme %N not supported with BLISS",
 				 signature_scheme_names, scheme);

src/libstrongswan/plugins/bliss/bliss_public_key.c

@@ -59,9 +59,7 @@ METHOD(public_key_t, verify, bool,
 {
 	switch (scheme)
 	{
-		case SIGN_BLISS_I_SHA256:
-			return FALSE;
-		case SIGN_BLISS_IV_SHA384:
+		case SIGN_BLISS_WITH_SHA512:
 			return FALSE;
 		default:
 			DBG1(DBG_LIB, "signature scheme %N not supported by BLISS",