Generic construction of designated tester public-key encryption with keyword search

  • Authors:
  • Hyun Sook Rhee;Jong Hwan Park;Dong Hoon Lee

  • Affiliations:
  • IT Solutions, Samsung Electronics Co. Ltd., Suwon-si, Gyeonggi-do, Republic of Korea;Graduate School of Information Security, CIST, Korea University, Seoul, Republic of Korea;Graduate School of Information Security, CIST, Korea University, Seoul, Republic of Korea

  • Venue:
  • Information Sciences: an International Journal
  • Year:
  • 2012

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Abstract

This paper provides two generic transformations to construct a designated tester public-key encryption with keyword search scheme using two identity-based encryption schemes. We also identify the properties of identity-based encryption that are sufficient to provide the confidentiality and consistency in designated tester public-key encryption with keyword search. The anonymity and confidentiality of identity-based encryption are sufficient for achieving confidentiality of designated tester public-key encryption with keyword search, and the confidentiality of identity-based encryption is sufficient for achieving consistency of designated tester public-key encryption with keyword search. Our constructions do not need any global set-up for the public parameters. We further extend our generic method to construct designated tester identity-based encryption with keyword search, where encryption is performed under the identity of a recipient instead of a public key.