A Modified Identity-based Signature Scheme Based on Cubic Residues
Xuedong Dong, Xinxin Liu · 2015
International Journal of Network Security, 14(2012)33-38] proposed an identity-based signature scheme based on cubic residues.But the scheme is insecure because it cannot withstand a conspiracy attack by users.To overcome this security vulnerability, this paper proposes a novel method to compute a cubic root of a cubic residue.Then a modified identity-based signature scheme based on cubic residues is proposed.The security analysis results show that the modified scheme can resist the conspiracy attack.