Blind signature scheme in electronic business

Electronic business is turning to an important business pattern. Its security is based on the cryptology technology and protocols. Blind signature can provide anonymity, unforgery within the security. With the developing of electronic business, blind signature technology is playing a more and more important role in this field. This paper focuses on the blind signature scheme. First, a general protocol is described. Then, the main schemas of blind signature are illuminated, such as strong blind signature, week blind signature, partial blind signature and proxy blind signature. We also analyze their application field in electronic business. Finally, we explain its application in e-cash and e-voting, the most mature fields by now.