Cryptology ePrint Archive: Report 2007/159

Attribute Based Group Signatures

Dalia Khader

Abstract: An Attribute Based Group Signature (ABGS) allows a verifier to request a signature from a member of a group who possesses certain attributes. Therefore, a signature should authenticate a person in a group and prove ownership of certain properties. The major difference between our scheme and previous group signatures, is that the verifier can determine the role of the actual signer within the group. In this paper we define the first ABGS scheme, and security notions such as anonymity and traceability. We then construct the scheme and prove it secure.

Category / Keywords: public key cryptography, group signature

Date: received 30 Apr 2007, last revised 12 Jan 2008

Contact author: ddk20 at bath ac uk

Available format(s): PDF | BibTeX Citation

Note: Modifying the scheme and adding authors name.

Version: 20080112:115123 (All versions of this report)

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