International Journal of Network Security
In this paper, the authors reinvestigate the security analysis of blind signature scheme over braid groups proposed by the researchers in 2008. A blind signature scheme is a crypto-graphic primitive used for e-commerce for getting a signature from the signer without revealing any information about its contents. These schemes are especially used in e-transactions, e-votings, DRM systems, etc. The security of blind signature is basically defined by two properties blindness and unforgeability. Here, they prove a special form of unforgeability called one more forgery defined by them.