don't verify signature twice

libi2pd/LeaseSet.cpp

@@ -21,7 +21,7 @@ namespace data
 		ReadFromBuffer ();
 	}
 
-	void LeaseSet::Update (const uint8_t * buf, size_t len)
+	void LeaseSet::Update (const uint8_t * buf, size_t len, bool verifySignature)
 	{
 		if (len > m_BufferLen)
 		{
@@ -31,7 +31,7 @@ namespace data
 		}
 		memcpy (m_Buffer, buf, len);
 		m_BufferLen = len;
-		ReadFromBuffer (false, false); // we assume signature is verified already
+		ReadFromBuffer (false, verifySignature);
 	}
 
 	void LeaseSet::PopulateLeases ()

libi2pd/LeaseSet.h

@@ -57,7 +57,7 @@ namespace data
 
 			LeaseSet (const uint8_t * buf, size_t len, bool storeLeases = true);
 			~LeaseSet () { delete[] m_Buffer; };
-			void Update (const uint8_t * buf, size_t len);
+			void Update (const uint8_t * buf, size_t len, bool verifySignature = true);
 			bool IsNewer (const uint8_t * buf, size_t len) const;
 			void PopulateLeases (); // from buffer
 

libi2pd/NetDb.cpp

@@ -242,7 +242,7 @@ namespace data
 				{
 					if(it->second->GetExpirationTime() < expires)
 					{
-						it->second->Update (buf, len);
+						it->second->Update (buf, len, false); // signature is verified already
 						LogPrint (eLogInfo, "NetDb: LeaseSet updated: ", ident.ToBase32());
 						updated = true;
 					}