摘要： 现有的部分盲签名方案很少考虑随机性，且对随机性的严格证明也较少。为此，基于双线性对，提出一种可证明安全性的随机化部分盲签名方案，该方案中的随机性参数由签名者与签名接收者选择的随机数共同生成，并从正确性、随机性、不可链接性、不可伪造性等方面给出严格证明。分析结果表明，与原有方案相比，该方案的安全性更高。

关键词: 部分盲签名, 双线性对, 随机性, 盲性, 不可链接性

Abstract: In view of the questions that the proposed partially blind signatures very little consider the randomization property, and also very little give any formal proofs. A provably secure randomized partially blind signature scheme based on bilinear pairing is presented. In the scheme, a method is used that the randomization parameter is decided by the random numbers chose by the signer and the signature receiver, and some formal proofs from correctness, randomization, unlinkabiliy and unforgeability of the scheme are given, which makes the scheme more security.

Key words: partially blind signature, bilinear pairing, randomness, blindness, unlinkability

中图分类号: 

• TP311