Order-Preserving Encryption for Numeric Data

  title={Order-Preserving Encryption for Numeric Data},
  author={Rakesh Agrawal and Jerry Kiernan and Ramakrishnan Srikant and Yirong Xu},
  booktitle={SIGMOD Conference},
Encryption is a well established technology for protecting sensitive data. However, once encrypted, data can no longer be easily queried aside from exact matches. We present an order-preserving encryption scheme for numeric data that allows any comparison operation to be directly applied on encrypted data. Query results produced are sound (no false hits) and complete (no false drops). Our scheme handles updates gracefully and new values can be added without requiring changes in the encryption… CONTINUE READING
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