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电子设计工程
Electronic Design Engineering
第 28卷
Vol.28
第 5期
No.5
2020年 3月
Mar. 2020
收稿日期:2019-08-15 稿件编号:201908083
基金项目:中国南方电网项目(DWG201803)
作者简介:张文哲(1985—),男,广东广州人,硕士,高级工程师。研究方向:加解密算法、网络流量分析、无线通信等。
LED 密码算法作为一种 SPN 结构的新型轻量级
算法,具有较高的安全性,能够保证网络通信的安全
运行
[1,2]
。LED 轻量级密码算法芯片是轻量级密码算
法表现形式的一种,被应用于众多电子设备,其功耗
问题也受到设计师的重视
[3]
。现有的 LED 轻量级密
码算法芯片的电流和功率密度不断增加
[4]
。LED 功
耗过大会导致其内部自加热,进而引起 LED 性能的
退化
[5]
。从实际需求出发,提出一种 LED 轻量级密码
算法芯片功耗优化方法,并通过实验对所提方法的
有效性进行验证。
1 功耗分析
随着芯片工艺线逐渐成熟,其特征尺寸不断缩
小,集成度不断提高,功耗问题愈加严重
[6]
。功耗问
题主要与芯片的封装和冷却技术相关,功耗过大会
LED 轻量级密码算法芯片的功耗优化
张文哲
1
,赖宇阳
2
,陈海倩
2
,孙宏棣
2
,孔 磊
2
(1.中国南方电网 系统运行部 网络安全处,广东 广州 510623;
2.南方电网数字电网研究院有限公司,广东 广州 510623)
摘要:LED 轻量级密码算法芯片消耗功率过多,封装、散热困难,针对这一问题,对 LED 轻量级密码
算法芯片进行功耗优化研究。分析了静态能耗问题、动态能耗问题和短路能耗问题,得出了其对
芯片使用寿命的影响。设计商密 SM1、SM2、SM3、SM4 模块、专用算法模块和物理噪声源模块,对
LED 轻量级密码算法芯片消耗功率进行优化,采用门级功耗优化技术降低动态消耗。与未优化前
的芯片进行实验对比,结果表明,功耗优化后的 LED 轻量级密码算法芯片的性能明显优于传统芯
片,说明该方法能够有效降低芯片功耗,具有很高的应用价值。
关键词:LED;轻量级密码算法;算法芯片;功耗优化
中图分类号:TM73 文献标识码:A 文章编号:1674-6236(2020)05-0185-04
DOI:10.14022/j.issn1674-6236.2020.05.040
Power optimization of LED lightweight cryptographic algorithm chip
ZHANG Wen⁃zhe
1
,LAI Yu⁃yang
2
,CHEN Hai⁃qian
2
,SUN Hong⁃di
2
,KONG Lei
2
(1. Network Security Department,System Operation Department,China Southern Power Grid,Guangzhou
510623,China;2.China Southern Digital Grid Research Institute Co.,Ltd.,Guangzhou 510623,China)
Abstract: LED lightweight cryptographic algorithm chip consumes too much power and is difficult to
package and dissipate heat. To solve this problem, the power consumption optimization of LED
lightweight cryptographic algorithm chip is studied. The problems of static energy consumption,dynamic
energy consumption and short circuit energy consumption are analyzed. Design business secret SM1,
SM2,SM3,SM4 modules,special algorithm module and physical noise source module,to optimize the
power consumption of LED lightweight cryptographic algorithm chip,and reduce dynamic consumption
by using gate power optimization technology. Compared with the chip before optimization, the
experimental results show that the performance of LED lightweight cryptographic algorithm chip after
power optimization is significantly better than that of traditional chip,indicating that this method can
effectively reduce the power consumption of the chip and has high application value.
Key words: LED;lightweight cryptographic algorithm;algorithm chip;power optimization
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