基于NCL路径平衡的抗功耗分析方法  

Power analysis-resistant based on NCL path balance

作　　者：罗芳[1] 欧庆于[1] 吴晓平[1] 

机构地区：[1]海军工程大学信息安全系,湖北武汉430033

出　　处：《通信学报》2013年第S1期76-83,共8页Journal on Communications

基　　金：国家自然科学基金资助项目(61100042;61202338)~~

摘　　要：由于对路径结构平衡的本质以及设计方法缺乏系统的研究,导致其在实际应用中严重依赖设计者自身的经验,难以推广到各类自动化综合方法中。对实现路径平衡结构的形式化定义及充分条件进行了研究,并给出了证明,进而提出了一种基于改进二元决策图(BDD,binary decision diagram)的零协议逻辑(NCL,null convention logic)异步电路路径平衡扩展方法。该方法能够简便地扩展至各类自动化综合过程中,并能在不改变目标电路特性的前提下,有效实现NCL异步电路的路径平衡结构,抵消由于寄生电容和负载电容差异所造成的密码芯片旁路信息泄露。Because of the insufficient research on the essence and the design technique of the path balance structure, the experience of the designer is severely relied on, so it can't be applied in kinds of automatization synthesis techniques. To solve this problem, the formal specification and the sufficient conditions of the implementation for the path balance structure were researched, and the proof was given. Based on the improvement of the binary decision diagram, a path balance extension technique of the null convention logic(NCL) asynchronous circuit was put forward, which could be applied in kinds of automatization synthesis techniques. By applying this technique, the path balance structure of the NCL asynchronous circuit could be implemented on the premise that the characteristics of the orientated circuit would be unchangeable, and the leakage of the side-channel information aroused by the differences of the parasitic capacitor and the load capacitor could also be resisted.

关 键 词：功耗分析 路径平衡 二元决策图 零协议逻辑 

分 类 号：TN402[电子电信—微电子学与固体电子学]