Short group signatures
发表信息
作者
- Dan Boneh
- Xavier Boyen
- Hovav Shacham
笔记
We construct a short group signature scheme. Signatures in our scheme are approximately the size of a standard RSA signature with the same security. Security of our group signature is based on the Strong Diffie-Hellman assumption and a new assumption in bilinear groups called the Decision Linear assumption. We prove security of our system, in the random oracle model, using a variant of the security definition for group signatures recently given by Bellare, Micciancio, and Warinschi.
我们构建了一个简短的群签名方案。我们方案中的签名大小大约与具有相同安全性的标准RSA签名相当。我们的群签名安全性基于强Diffie-Hellman假设（Strong Diffie-Hellman assumption）和双线性群中的一个新假设，称为线性判定假设（Decision Linear assumption）。我们在随机预言模型中，使用Bellare、Micciancio和Warinschi最近提出的群签名安全性定义的变体，证明了我们系统的安全性。