Association of Computer Electronics and Electrical Engineers
The essential functionality of any digital transaction system is the protection of the anonymity of user and the message. Group signature allows any valid group member to sign any number of messages on behalf of the group without revealing the member identity. A blind signature is a cryptographic scheme produces a signature, where the digital signature is obtained on a message from a signer without revealing any information about the message. In this paper, the authors bring in a new cryptographic scheme called a group blind digital signature combines the existing concept of a group digital signature and a blind digital signature.