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How Do You Securely Exchange Encrypted-Decrypted-Recrypted Data? Ask Microsoft (The Register)

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Microsoft researchers are working to enable secure data exchange in the cloud for applications.

The work is designed to resolve the dilemma that to store data in the cloud it needs to be encrypted but to process this data it needs to be decrypted, leaving it potentially open to attack.

This tradeoff between data usability and security might be bridged through what Redmond’s boffins describes as a protocol, or set of rules, to securely exchange data for multiparty computation, as explained in a blog post.