Attribute-Based Signature with Policy-and-Endorsement Mechanism |
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| Authors: | Huai-Xi Wang Yan Zhu Rong-Quan Feng Stephen S. Yau |
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| Affiliation: | 1.LMAM, School of Mathematical Sciences,Peking University,Beijing,China;2.Institute of Computer Science and Technology,Peking University,Beijing,China;3.Key Laboratory of Network and Software Security Assurance (Peking University), Ministry of Education,Beijing,China;4.Information Assurance Center and School of Computing,Informatics and Decision Systems Engineering Arizona State University,Tempe,U.S.A.;5.Electronic Engineering Institute,Hefei,China |
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| Abstract: | In this paper a new signature scheme, called Policy-Endorsing Attribute-Based Signature, is developed to correspond with the existing Ciphertext-Policy Attribute-Based Encryption. This signature provides a policy-and-endorsement mechanism. In this mechanism a single user, whose attributes satisfy the predicate, endorses the message. This signature allows the signer to announce his endorsement using an access policy without having to reveal the identity of the signer. The security of this signature, selfless anonymity and existential unforgeability, is based on the Strong Diffie-Hellman assumption and the Decision Linear assumption in bilinear map groups. |
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