correct reply key and IV for ECIES record

libi2pd/I2NPProtocol.cpp

@@ -410,7 +410,9 @@ namespace i2p
 				for (int j = 0; j < num; j++)
 				{
 					uint8_t * reply = records + j*TUNNEL_BUILD_RECORD_SIZE;
-					if (isECIES && j == i)
+					if (isECIES)
+					{	
+						if (j == i)
 						{
 							uint8_t nonce[12];
 							memset (nonce, 0, 12);
@@ -423,6 +425,13 @@ namespace i2p
 							}	
 						}
 						else
+						{	
+							encryption.SetKey (clearText + ECIES_BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET);
+							encryption.SetIV (clearText + ECIES_BUILD_REQUEST_RECORD_REPLY_IV_OFFSET);	
+							encryption.Encrypt(reply, TUNNEL_BUILD_RECORD_SIZE, reply);
+						}	
+					}
+					else
 					{
 						encryption.SetKey (clearText + BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET);
 						encryption.SetIV (clearText + BUILD_REQUEST_RECORD_REPLY_IV_OFFSET);	
@@ -466,7 +475,7 @@ namespace i2p
 		{
 			if (i2p::context.IsECIES ())
 			{
-				uint8_t clearText[TUNNEL_BUILD_RECORD_SIZE];
+				uint8_t clearText[ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE];
 				if (HandleBuildRequestRecords (num, buf + 1, clearText))
 				{
 					if (clearText[ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET] & 0x40) // we are endpoint of outboud tunnel