| 基于Montgomery曲线改进ECDSA算法的研究 |
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| 引用本文： | 王潮,时向勇,牛志华.基于Montgomery曲线改进ECDSA算法的研究[J].通信学报,2010,31(1):9-13. |
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| 作者姓名： | 王潮 时向勇 牛志华 |
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| 作者单位： | 1. 上海大学,特种光纤与光接入网省部共建重点实验室,上海,200072
2. 上海大学,计算机学院,上海,200072 |
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| 基金项目： | 国家自然科学基金，上海市重点学科和科委重点实验室基金 |
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| 摘 要： | 提出了一种基于Montgomery曲线改进ECDSA算法,并重点改进异步点乘问题.改进的ECDSA具有更快的计算速度并能有效地抵御时间攻击和能量攻击,将验证签名与产生签名时间之比从2倍降低到约1.2倍,减少约40%,算法对提高椭圆曲线密码的实现效率有一定意义.
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| 关 键 词： | 蒙哥马利 椭圆曲线密码 椭圆曲线数字签名算法 时间攻击 能最攻击 |
The research of the promotion for ECDSA algorithm based on Montgomery-form ECC |
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| WANG Chao,SHI Xiang-yong,NIU Zhi-hua.The research of the promotion for ECDSA algorithm based on Montgomery-form ECC[J].Journal on Communications,2010,31(1):9-13. |
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| Authors: | WANG Chao SHI Xiang-yong NIU Zhi-hua |
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| Institution: | WANG Chao1,SHI Xiang-yong1,NIU Zhi-hua2 (1. Key Lab of Specialty Fiber Optics , Optical Access Network,Ministry Education,Shanghai University,Shanghai 200072,China,2. School of Computer,China) |
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| Abstract: | Montgomery-form ECC was applied to promote ECDSA algorithm, emphases on asynchronous scalar multiplication problem, could effectively resist the timing attack and energy attack. The computation amount of the new Montgomery-form ECDSA algorithm decreases 40%, and the proportion of verifying signature algorithm to generating signature algorithm debase 1.2 times. The new Montgomery-form ECDSA algorithm will make great improvement to the implementation of ECC. |
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| Keywords: | Montgomery ECC ECDSA timing attack energy attack |
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