random intro key

libi2pd/RouterContext.cpp

@@ -89,7 +89,7 @@ namespace i2p
 				host = i2p::util::net::GetInterfaceAddress(ifname4, false).to_string();
 
 			if (ssu)
-				routerInfo.AddSSUAddress (host.c_str(), port, routerInfo.GetIdentHash ());
+				routerInfo.AddSSUAddress (host.c_str(), port, nullptr);
 		}
 		if (ipv6)
 		{
@@ -103,7 +103,7 @@ namespace i2p
 				host = i2p::util::net::GetInterfaceAddress(ifname6, true).to_string();
 
 			if (ssu)
-				routerInfo.AddSSUAddress (host.c_str(), port, routerInfo.GetIdentHash ());
+				routerInfo.AddSSUAddress (host.c_str(), port, nullptr);
 		}
 
 		routerInfo.SetCaps (i2p::data::RouterInfo::eReachable |
@@ -486,7 +486,7 @@ namespace i2p
 				if (ssu)
 				{
 					std::string host = "::1"; // TODO: read host
-					m_RouterInfo.AddSSUAddress (host.c_str (), port, GetIdentHash ());
+					m_RouterInfo.AddSSUAddress (host.c_str (), port, nullptr);
 				}
 			}
 			// NTCP2

libi2pd/RouterInfo.cpp

@@ -719,7 +719,10 @@ namespace data
 		addr->date = 0;
 		addr->ssu.reset (new SSUExt ());
 		addr->ssu->mtu = mtu;
-		memcpy (addr->ssu->key, key, 32);
+		if (key)
+			memcpy (addr->ssu->key, key, 32);
+		else
+			RAND_bytes (addr->ssu->key, 32);
 		for (const auto& it: *m_Addresses) // don't insert same address twice
 			if (*it == *addr) return;
 		m_SupportedTransports |= addr->host.is_v6 () ? eSSUV6 : eSSUV4;