Two-Move and Setup-Free Blind Signatures with Perfect Blindness
Lucjan Hanzlik, Kamil Kluczniak · 2017
At ISC'12 Ghadafi and Smart proposed a two-move blind signature scheme based on a new variant of the interactive LRSW assumption and the perfect hiding property of Pedersen commitments. In this paper we show that there exists a simple algorithm that always breaks the blindness property of their scheme.