About group digital signatures
Keywords:
group digital signature, privacy, identification, ACJT signature, CG signatureAbstract
Group signatures try to combine security (no framing, no cheating) and privacy(anonymity, unlinkability).A group digital signature is a digital signature with enhanced privacy features that allows members of a given group to anonymously sign messages on behalf of the group, producing a group signature. However, in the case of dispute the identity of the signature's originator can be revealed by a designated entity (group manager). The present paper describes the main concepts about group signatures, along with a brief state of the art and shows a personal cryptographic library implemented in Java that includes two group signatures.
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