Microsoft launches a social-encryption service

Researchers at Microsoft have developed a mobile platform that lets users share photos and other information without giving the network itself access to their data. The system, called Contrail, uses an opt-in encryption system in which every item that’s shared is tagged with a key enabling it to be unlocked only by its intended recipient. Developers point out that this new system is different from current social-network technology, which allows a social site’s servers to have access to personal information.  MIT Technology Review


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