Nonce-aware encryption

  • Authors:
  • Ming-Luen Wu

  • Affiliations:
  • National Kaohsiung Normal University, Department of Mathematics, Lingya District, Kaohsiung City, Taiwan

  • Venue:
  • WSEAS Transactions on Information Science and Applications
  • Year:
  • 2009

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Abstract

As an alternative perspective on designing IND-CCA2 encryption, we introduce a new security notion, nonce-awareness, for encryption. An encryption scheme is nonce-aware if it is computationally infeasible to produce a valid ciphertext without knowing the associated nonce. We also show that two remarkable IND-CCA2 encryption schemes are nonce-aware.