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BGKM: An Efficient Secure Broadcasting Group Key Management Scheme

Authors:
Zhibin Zhou
Dijiang Huang
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URL: http://eprint.iacr.org/2008/436
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Abstract: Broadcasting Group Key Management (BGKM) scheme is designed to reduce communication, storage, and computation overhead of existing Broadcasting Encryption Schemes (BES). To this end, BGKM proposes a new broadcasting group management scheme by utilizing the basic construction of ciphertext policy attribute based encryption and flat table identity management. Compared to previous approaches, our performance evaluation shows that BGKM greatly improved performance in communication O(log n) for single revocation and O((log n)(log m)) for bulk revocations), storage (O(log n) for each group member), and computation (O((log n) (log m)) for both encryption and decryption), where n is the ID space size and m is the number of GMs in the group. Moreover, BGKM scheme provides group forward/backward secrecy, and it is resilience to colluding attacks.
BibTeX
@misc{eprint-2008-18080,
  title={BGKM: An Efficient Secure Broadcasting Group Key Management Scheme},
  booktitle={IACR Eprint archive},
  keywords={cryptographic protocols / group key management, broadcasting},
  url={http://eprint.iacr.org/2008/436},
  note={ Zhibin.Zhou@asu.edu 14249 received 10 Oct 2008, last revised 3 Nov 2008, withdrawn 5 Jan 2009},
  author={Zhibin Zhou and Dijiang Huang},
  year=2008
}