基于新的群签名的密封式电子拍卖方案

Sealed-bid electronic auction scheme based on new group signature

利用一个基于分层身份思想和双线性映射的群签名,提出了一个新的安全高效的密封式电子拍卖方案。该方案除满足投标者的匿名性、健壮性、中标者的不可抵赖性和公开可验证性等一般安全性要求外,还具有步骤简略、构造方便、通信量和计算量小等特点。同时该方案实现了简单的可撤销和一次注册、多次拍卖的特性。

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.