A Secure and Efficient Off-line Electronic Transaction Protocol
Constantin Popescu · Studies in Informatics and Control · 2010
In this paper we propose a secure and efficient off-line electronic transaction protocol based on an IDbased public key encryption system and group signature schemes, which is constructed from bilinear pairings.The anonymity of the customer is revocable by a trustee in case of dispute.Because the amount of communication in the payment protocol is about 1280 bits, our off-line electronic transaction protocol can be used in the wireless networks with the limited bandwidth or the limited-storage environment such as smart card.