Cryptology ePrint Archive: Report 2021/1406

Non-Slanderability of Linkable Spontaneous Anonymous Group Signature (LSAG)

Veronika Kuchta and Joseph K. Liu

Abstract: In this paper, we formally prove the non-slanderability property of the first linkable ring signature paper in ACISP 2004 (in which the notion was called linkable spontaneous anonymous group signature (LSAG)). The rigorous security analysis will give confidence to any future construction of Ring Confidential Transaction (RingCT) protocol for blockchain systems which may use this signature scheme as the basis.

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Date: received 18 Oct 2021

Contact author: joseph liu at monash edu

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Version: 20211024:072809 (All versions of this report)

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