Public key encryption supporting plaintext equality test and user-specified authorization

  • Qiang Tang
  • Published 2012 in Security and Communication Networks


In this paper, we investigate a category of public key encryption schemes that supports plaintext equality test and userspecified authorization. With this new primitive, two users, who possess their own public/private key pairs, can issue token(s) to a proxy to authorize it to perform plaintext equality test from their ciphertexts. We provide a formal… (More)
DOI: 10.1002/sec.418

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