A Novel Attribute-Based Broadcast Signature Algorithm
Wei Chen · Computer Technology and Development · 2010
For the complexity of the existing broadcast signature algorithms based on the ABE,propose a new signature algorithm based on the attributes.In the existing ABE broadcast signature scheme,senders need to transmit the linear secret sharing matrix M,which causes the heavy traffic and requires lots of storage space of receivers.Scheme based on the CP-ABE has different access policy,which computes the greatest common divisor of polynomial(GCD) instand of the linear secret sharing matrix M.In return,a receiver performs only 3 pairing computations.The traffic and the receivers' computing complexity are reduced in this scheme.This algorithm is also adapted to the resource-restricted networks,such as Ad Hoc networks.