| F2^m上圆锥曲线密码的曲线参数选取和混合加密 |
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| 引用本文： | 蔡昌许,;蔡昌曙.F2^m上圆锥曲线密码的曲线参数选取和混合加密[J].曲靖师专学报,2008(6):57-59. |
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| 作者姓名： | 蔡昌许 ;蔡昌曙 |
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| 作者单位： | [1]曲靖师范学院计算机科学与工程学院,云南曲靖655011; [2]云南省电子政务网络管理中心,云南昆明650000 |
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| 摘 要： | 基于有限域F2^m，设计二进制随机圆锥曲线，可以很方便地选取任意非零点作为基点，曲线的点构成2^m＋1阶有限群．提出了一种基于CCC／AES的混合加密方案CCIES来保证数据传输的保密性、完整性．此方案用户可以每次随机地自定义曲线，采用了Diflie—Hellman密钥交换协议，可以满足用户间安全快速传输大量数据的要求．
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| 关 键 词： | 信息安全 圆锥曲线密码体制 混合加密 AES Diffie—Hellman |
Parameters Selection and Combined Encryption based on Conic Curve Cryptography over F2^m |
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| Institution: | Cai Changxu, Cai Changshu ( 1. Computer Science and Engineering Department, Qujing Normal University, Qujing Yunnan 655011 ; 2. Yunnan E- government Network management Center, Kunming Yunnan 650000, China) |
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| Abstract: | CCC has advantages over ECC in terms of order computation and plaintext embedding. The paper focuses on finite field of F2^m. Three binary conic curves are designed. Every point on the curve can be base point except point （0,0）. The points on the curve form a group of order 2m ＋ 1. Finally a mixed encryption scheme combined CCC with AES is proposed, which can satisfy the need of secrecy and integrity. In the scheme users can define a curve randomly, and Diffie- Hellman key agreement protocol is used. The scheme can meet the need of securely and fast information transfers. |
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| Keywords: | information security conic curve cryptography mixed encryption AES Diffie - Hellman |
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