Abstract
Attribute-Based Group Signature (ABGS) allows a member of a group who possesses precise attributes to sign on behalf of others. Moreover, it allows a verifier to confirm that the signer indeed possesses the attributes claimed, when signing. Naturally, a user’s attributes may hold confidential information, and hence must be protected. According to our observations, there is a scope for improvement in the existing ABGS schemes in efficiently providing anonymity of a user’s attributes. Inspired by the original ABGS scheme by D. Khader, we propose a new ABGS scheme in this paper that uses Oblivious Signature-Based Envelope (OSBE) protocol to provide anonymity of user’s attributes. Our construction is efficient in that the signature or the verification process eliminates exploiting any attributes.
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Patel, B.K., Jinwala, D. (2012). Anonymity in Attribute-Based Group Signatures. In: Thilagam, P.S., Pais, A.R., Chandrasekaran, K., Balakrishnan, N. (eds) Advanced Computing, Networking and Security. ADCONS 2011. Lecture Notes in Computer Science, vol 7135. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29280-4_58
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DOI: https://doi.org/10.1007/978-3-642-29280-4_58
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