A Bilinear Spontaneous Anonymous Threshold Signature for Ad Hoc Groups

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Paper 2004/039

A Bilinear Spontaneous Anonymous Threshold Signature for Ad Hoc Groups

Victor K. Wei

Abstract

We present an adaptive chosen-plaintext cryptanalysis of Boneh, et al.'s bilinear spontaneous anonymous ad hoc group signature. Then we present a patch, and an extension to a threshold version complete with a security proof in the random oracle model (ROM).

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. preprint
Keywords: cryptanalysis anonymity group signature
Contact author(s): kwwei @ ie cuhk edu hk
History: 2004-02-16: received
Short URL: https://ia.cr/2004/039
License: CC BY