Security

Attribute-Based Ring Signatures

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Executive Summary

Ring signature was proposed to keep signer's anonymity when it signs messages on behalf of a "Ring" of possible signers. In this paper, the authors propose a novel notion of ring signature which is called attribute-based ring signature. In this kind of signature, it allows the signer to sign message with its attributes from attribute center. All users that possess of these attributes form a ring. The identity of signer is kept anonymous in this ring. Furthermore, anyone out of this ring could not forge the signature on behalf of the ring.

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