| 基于ECC的自认证代理签密方案 |
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| 引用本文： | 俞惠芳,王彩芬,王之仓. 基于ECC的自认证代理签密方案[J]. 计算机科学, 2010, 37(7): 91-92 |
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| 作者姓名： | 俞惠芳 王彩芬 王之仓 |
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| 作者单位： | 1. 青海师范大学计算机系,西宁,810008
2. 西北师范大学数学与信息科学学院,兰州,730070 |
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| 基金项目： | 教育部科学技术研究重点项目，甘肃省科技攻关项目，青海省科技厅软课题项目，青海省重点课程《现代操作系统》建设项目 |
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| 摘 要： | 为了克服代理签密中的证书管理问题和密钥托管问题,提出了一种新的基于椭圆曲线密码体制(ECC)的自认证代理签密方案,其困难性基于椭圆曲线离散对数问题(ECDLP).与已有文献相比,此方案具有安全性强、密钥长度短、所需要存储空间少、占用带宽小、计算量和通信量低等优点.
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| 关 键 词： | 代理签密 自认证代理签密 自认证签密 椭圆曲线离散对数问题 |
| 收稿时间： | 2009-08-14 |
| 修稿时间： | 2009-11-23 |
Self-certified Proxy Signcryption Scheme Based on Elliptic Curve Cryptography |
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| YU Hui-fang,WANG Cai-fen,WANG Zhi-cang. Self-certified Proxy Signcryption Scheme Based on Elliptic Curve Cryptography[J]. Computer Science, 2010, 37(7): 91-92 |
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| Authors: | YU Hui-fang WANG Cai-fen WANG Zhi-cang |
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| Affiliation: | (Department of Computer Science, Qinghai Normal University, Xining 810008, China);(College of Mathematics and Information Science, Northwest Xormal University, Lanzhou 730070,China) |
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| Abstract: | To overcome certificate management problem and key escrow problem in proxy signcryption schemes, a new self-certified proxy signcryption scheme based on elliptic curve cryptography(ECC) was proposed, it hardness relys on elliptic curve discrete logarithm problem(ECDLP). Compared with the existence hteratures, the proposed scheme possesses good security and shorter keyless requirement of storage space and less bandwith requirement,lower computational complexity and communication cost. |
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| Keywords: | Proxy signcryption Self-certified proxy signcryption Self-certified signcryption Elliptic curve discreate logarithm problem |
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