Cryptanalysis of an efficient secure group signature scheme
Li-Hua Li, Chi-Yu Liu, Min‐Shiang Hwang · ACM SIGOPS Operating Systems Review · 2004
Group signature has been proposed for many years, those schemes are still not efficient. In 2002, Shi proposed a group signature scheme based on the discrete logarithm problem. In Shi's scheme, he claims that his scheme is efficient compared to previous proposed schemes. Although his scheme is better than others, the scheme is not secure. In this article, we will show that Shi's scheme will be subjected forgery attack.