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Public Key Encryption with Keyword Search from Lattices in Multiuser Environments

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  • Daini Wu
  • Xiaoming Wang
  • Qingqing Gan

Abstract

A public key encryption scheme with keyword search capabilities is proposed using lattices for applications in multiuser environments. The proposed scheme enables a cloud server to check if any given encrypted data contains certain keywords specified by multiple users, but the server would not have knowledge of the keywords specified by the users or the contents of the encrypted data, which provides data privacy as well as privacy for user queries in multiuser environments. It can be proven secure under the standard learning with errors assumption in the random oracle model.

Suggested Citation

  • Daini Wu & Xiaoming Wang & Qingqing Gan, 2016. "Public Key Encryption with Keyword Search from Lattices in Multiuser Environments," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-7, November.
    • Handle: RePEc:hin:jnlmpe:6549570
    DOI: 10.1155/2016/6549570
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