Sealed-bid electronic auction scheme based on new group signature

Abstract

With the help of a group signature based on Hierarchical Identity-Based Signature(HIBS)and bilinear map,a new secure and efficient sealed-bid electronic auction scheme was presented.The scheme not only fulfilled the common security requirements,such as the anonymity of bidders,robustness,non-repudiation of the winner and public verifiability,but also had some other characteristics:compendiary steps,convenient construction,low cost of communications and computation,etc.Meanwhile,the scheme realized simple revocation,one-registration,and many times bidding.