Collusion-Resistant Group Key Management Using Attribute-Based Encryption

Ling Cheung; Joseph A.  Cooley; Roger Khazan; Calvin Newport

Paper 2007/161

Collusion-Resistant Group Key Management Using Attribute-Based Encryption

Ling Cheung, Joseph A. Cooley, Roger Khazan, and Calvin Newport

Abstract

This paper illustrates the use of ciphertext-policy attribute-based encryption (CP-ABE), a recently proposed primitive, in the setting of group key management. Specifically, we use the CP-ABE scheme of Bethencourt, Sahai and Waters to implement flat table group key management. Unlike past implementations of flat table, our proposal is resistant to collusion attacks. We also provide efficient mechanisms to refresh user secret keys (for perfect forward secrecy) and to delegate managerial duties to subgroup controllers (for scalability). Finally, we discuss performance issues and directions for future research.

Metadata

Available format(s): PDF
Category: Applications
Publication info: Published elsewhere. Submitted to GOCP'07
Keywords: key management multicast
Contact author(s): lcheung @ theory csail mit edu
History: 2007-05-07: received
Short URL: https://ia.cr/2007/161
License: CC BY

BibTeX

@misc{cryptoeprint:2007/161,
      author = {Ling Cheung and Joseph A.  Cooley and Roger Khazan and Calvin Newport},
      title = {Collusion-Resistant Group Key Management Using Attribute-Based Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2007/161},
      year = {2007},
      url = {https://eprint.iacr.org/2007/161}
}