rekey low badwidth routers to ECIES

libi2pd/RouterContext.cpp

@@ -647,7 +647,14 @@ namespace i2p
 			}
 		}
 		std::shared_ptr<const i2p::data::IdentityEx> oldIdentity;
-		if (m_Keys.GetPublic ()->GetSigningKeyType () == i2p::data::SIGNING_KEY_TYPE_DSA_SHA1)
+		bool rekey = m_Keys.GetPublic ()->GetSigningKeyType () == i2p::data::SIGNING_KEY_TYPE_DSA_SHA1;
+		if (!rekey && m_Keys.GetPublic ()->GetCryptoKeyType () == i2p::data::CRYPTO_KEY_TYPE_ELGAMAL)
+		{
+			// rekey routers with bandwidth = L (or default) this time
+			std::string bandwidth; i2p::config::GetOption("bandwidth", bandwidth);
+			if (bandwidth.empty () || bandwidth[0] == 'L') rekey = true;
+		}	
+		if (rekey)
 		{
 			// update keys
 			LogPrint (eLogInfo, "Router: router keys are obsolete. Creating new");