| 基于离散对数的广义数字签名算法研究 |
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| 引用本文：丁家琳?覮.基于离散对数的广义数字签名算法研究[J].计算技术与自动化,2020,(3):178-182 |
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| 中文摘要:回顾了Ren-Harn的广义环签名算法，但Ren-Harn的广义环签名并不能满足可转化性的定义。以Ren-Harn的方案为基础，提出了基于时间戳的Ren-Harn算法，即在算法中引入时间戳变量，同时构造出双线性映射的单向陷门函数。通过环签名算法的验证，改进方案不仅严格满足可转化性的定义，而且具有很好的安全性。在保障真实签名者对于环签名的独创性，防止信息的恶意篡改等方面有很深远的影响和意义。 |
| 中文关键词:环签名 可转化性 合成函数 广义环签名 时间戳 |
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| Study of General Digital Signature Algorithm Based on Discrete Logarithm |
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| Abstract:The Ren-Harn generalized ring signature algorithm is reviewed, but the Ren-Harn generalized ring signature can't meet the definition of the transformation. On the basis of Ren-Harn scheme, the new Ren-Harn algorithm based on time stamp is proposed, and the variable of the time stamp in the algorithm is introduced. At the same time, the one-way trapdoor function of bi-linear mapping is constructed. Through the verification of ring signature algorithm, the improved scheme not only satisfies the definition of convertible strictly, but also has good security. It has a far-reaching influence and significance in the protection of the real signer for original ring signature, preventing the information from malicious tampering. |
| keywords:ring signature convertibility combining function generalized ring signature time stamp |
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