I'm not very familiar with DarkCoin implementation of masternodes so I can't tell you much about the differences in my implementation and DarkCoin's.
Regarding improvements in DarkCoin, I think is is better to use hash such as SHA-2 or X11 for masternode scores instead of some complicated...
This is how I implemented masternodes for SpreadCoin. Users can generate masternode secret with mnsecret command and then put it into spreadcoin.conf. This secret is essentially a new private key and a signature of the corresponding public key with masternode original private key. Will DarkCoin...