In a blind signature scheme, the user can obtain the signature of a message in a way that the signer learns neither the message nor the resulting signature, so the privacy of the user is protected.

• 盲签名是指签名人看不见所签的消息,而且也无法确定自己是否曾经对某个消息签名,因而能够很好地保护人们的隐私权。