[From eWeek]
A researcher at IBM reports having developed a fully homomorphic encryption scheme that allows data to be manipulated without being exposed. Researcher Craig Gentry’s discovery could prove to be important in securing cloud computing environments and fighting encrypted spam.
The article continues at
http://www.eweek.com/c/a/Security/IBM-Uncovers-Encryption-Scheme-That-Could-Improve-Cloud-Security-Spam-Filtering-135413/