Searching an Encrypted Cloud Searching
At the ACM Cloud Computing Security Workshop in Chicago tomorrow, Microsoft Research will propose a theoretical architecture that would stitch together several cryptographic technologies in various stages of development to make the encrypted cloud more searchable. The basic idea is that cloud users could download software that would encrypt their data before it's sent into the cloud. In addition, the software would issue encrypted strings, called tokens, which can be used to check that documents are intact and--crucially--to search their contents without first having to decrypt them.
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