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Technology

Homomorphic Encryption for Cloud-Based Data Analytics

Quick fact

The first fully homomorphic encryption scheme was proposed by Craig Gentry in 2009, after decades of being an open problem. It allows arbitrary computations on encrypted data, but is still too slow for many practical applications.

Why this is interesting

Imagine you could send your most sensitive spreadsheet to a cloud service, it performs complex statistical analysis, and returns the results—while the server never actually sees the data. How is that possible?