标准模型下基于线性对的选择关联可转换环签名方案

Pairing-based Linkable and Convertible Ring Signature Scheme without Random Oracles

摘要: 利用双线性对的性质提出了一种标准模型下可关联可转换的环签名方案。验证者除了能够验证环签名的合法性之外, 还能够验证2个环签名的关联性; 同时签名者能够将环签名转换成它的普通签名。该方案在标准模型下是可证安全的。通过与相关文献的比较发现, 本方案在存储量和计算代价方面均有所减少。

Abstract: A linkable and convertible ring signature scheme based on bilinear pairing in the standard model was proposed in this paper, the verifier may know if two ring signatures are linkable, besides the signer can convert a ring signature into a common signature.Compared with the related literature, the scheme is provably secure in the standard model, furthermore it reduces the storage and computational cost compared with similar schemes.