Cryptology ePrint Archive: Report 2008/031

Authenticating with Attributes

Dalia Khader

Abstract: Attribute based group signature (ABGS) is a a new generation of group signature schemes. In such a scheme the verifier could define the role of a signer within the group. He determines the attributes possessed by the member signing the document. In this paper we propose the first ABGS scheme with multi-authorities and define its security notions. We construct an ABGS that is proved to be fully traceable and fully anonymous. Our scheme is efficient and secure.

Category / Keywords: Digital Signature, Group signature, Attribute Based Cryptography

Date: received 23 Jan 2008

Contact author: ddk20 at bath ac uk

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Version: 20080128:152104 (All versions of this report)

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