we have developped with a friend a CUDA based test program for a client-server protocol called Private Information Retrieval (see  for a large reference on the subject).
These protocols are a great tool for privacy protection as they allow a user to retrieve a file from a server while avoiding that the server may learn which file has been retrieved. They are in fact used as a tool for many other privacy enhancing protocols.
The server side is accelerated with CUDA, but we were just able to test it on my friends laptop with a 8600M GT. We wondered if someone would be kind enough to test it on more efficient hardware to see how much can we seed-up the process…
The sources (which are only a few dozen lines long) can be found attached to this message.
thx for any help!!!