I don't have 4 hours to waste. I just need suggestions from experts who are familiar with the peer to peer models. Can you move this thread to proper place for me so that I can see what the replies are? Appreciate it!
This is a paper of a P2P system that let users trade digital works online, like freelancing.
There are some basic peer-review processes that guarantee the works are paid fairly.
However, the system is prone to fraud client attacks.
A fraud node can post needs without a deposit and the worker node giving solution to that need therefore is cheated.
The Paper: http://bit.ly/tGgXCH
So yea, I am asking all you awesome people some pointers on how to get get rid of the fraud client attacks.