Dual-Policy Attribute Based Encryption

  • Nuttapong Attrapadung
  • Hideki Imai
Conference paper

DOI: 10.1007/978-3-642-01957-9_11

Part of the Lecture Notes in Computer Science book series (LNCS, volume 5536)
Cite this paper as:
Attrapadung N., Imai H. (2009) Dual-Policy Attribute Based Encryption. In: Abdalla M., Pointcheval D., Fouque PA., Vergnaud D. (eds) Applied Cryptography and Network Security. ACNS 2009. Lecture Notes in Computer Science, vol 5536. Springer, Berlin, Heidelberg

Abstract

We present a new variant of Attribute based encryption (ABE) called Dual-Policy ABE. Basically, it is a conjunctively combined scheme between Key-Policy and Ciphertext-Policy ABE, the two previous available types of ABE. Dual-Policy ABE allows simultaneously two access control mechanisms over encrypted data: one involves policies over objective attributes ascribed to data and the other involves policies over subjective attributes ascribed to user credentials. The previous two types of ABE can only allow either functionality above one at a time.

Keywords

Attribute-based encryption Ciphertext policy Key policy 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Nuttapong Attrapadung
    • 1
  • Hideki Imai
    • 1
  1. 1.Research Center for Information Security (RCIS)National Institute of Advanced Industrial Science and Technology (AIST)TokyoJapan

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