Cryptology ePrint Archive: Report 2005/360

Burmester-Desmedt Tree-Based Key Transport Revisited: Provable Security

Jens Matthias-Bohli and Maria Isabel Gonzalez Vasco and Rainer Steinwandt

Abstract: A tree-based key transport protocol is presented which can be seen as a generalizing variant of the star- and tree-based protocols proposed by Burmester and Desmedt at EUROCRYPT '94. Our scheme does not rely on the availability of globally verifiable signatures or arbitrary point-to-point connections, and its security against active adversaries is proven in the standard model under the Decision Diffie Hellman assumption.

Category / Keywords: Group Key Stablishment, Provable Security

Date: received 7 Oct 2005, last revised 11 Oct 2005

Contact author: mariaisabel vasco at urjc es

Available format(s): Postscript (PS) | Compressed Postscript (PS.GZ) | BibTeX Citation

Version: 20051011:150737 (All versions of this report)

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