Cryptanalysis on Two Certificateless Signature Schemes
Futai Zhang, Sujuan Li, Songqin Miao, Yi Mu, Willy Susilo, Xinyi Huang · International Journal of Computers Communications & Control · 2010
Certificateless cryptography has attracted a lot of attention from the research community, due to its applicability in information security. In this paper, we analyze two recently proposed certificateless signature schemes and point out their security flaws. In particular, we demonstrate universal forgeries against these schemes with known message attacks.