| 具有防御功耗攻击性能的双域椭圆曲线密码处理器设计 |
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| 引用本文： | 吴永一,李庆,曾晓洋.具有防御功耗攻击性能的双域椭圆曲线密码处理器设计[J].小型微型计算机系统,2006,27(12):2321-2325. |
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| 作者姓名： | 吴永一 李庆 曾晓洋 |
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| 作者单位： | 复旦大学,专用集成电路与系统国家重点实验室,上海,201203 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家自然科学基金 |
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| 摘 要： | 提出了一种新型椭圆曲线密码处理器设计方案．采用OJW（最优联合权重）点乘调度算法加速点乘运算，该方法对椭圆曲线数字签名算法的验证运算尤为有效．通过引入双域求逆与Montgomery模乘相统一的算法和数据通路，处理器能进行任意GF（p）和GF（2^n）域上的有限域运算．同时针对简单功耗攻击和差分功耗攻击，本文提出了有效的抗攻击措施．基于SMIC 0．18CMOS工艺的实现结果表明，该设计在面积、速度、芯片抗攻击性能方面较同类设计有明显优势．
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| 关 键 词： | 椭圆曲线密码学 有限域(Galois域)运算 处理器 抗攻击 |
| 文章编号： | 1000-1220（2006）12-2321-05 |
| 收稿时间： | 09 27 2005 12:00AM |
| 修稿时间： | 2005-09-27 |
Dual-Field Elliptic Curve Cryptography Processor with Countermeasures Against Power Analysis |
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| WU Yong-yi,LI Qing,ZENG Xiao-yang.Dual-Field Elliptic Curve Cryptography Processor with Countermeasures Against Power Analysis[J].Mini-micro Systems,2006,27(12):2321-2325. |
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| Authors: | WU Yong-yi LI Qing ZENG Xiao-yang |
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| Abstract: | A new Elliptic Curve Cryptography (ECC) processor is proposed in this paper, which supports Galois fields GF(p) and GF(2n) arithmetic for arbitrary prime numbers and irreducible polynomials by introducing a dual-field unified algorithm and data-path. To speed up the scalar multiplication, a new technique is used, which is especially useful for the verifying operation of EC Digital Signature Algorithm. At the same time, the EC arithmetic is executed in an anti-attack form. The implementation result based on SMIC 0.18 CMOS technology shows the advantages of this design in the aspects of area, speed and anti-attack performance. |
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| Keywords: | elliptic curve cryptography finite field (galois Field) arithmetic processor anti-attack |
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