一种基于电路划分的模拟电路IP核保护算法  

A Partition-Based IP Protection Algorithm for Analog Circuits

作　　者：谢敏[1] 杨帆[1] 曾璇[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海201203

出　　处：《复旦学报（自然科学版）》2015年第5期559-568,共10页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金(91330201;61125401;61376040);国家十二五科技重大专项(2011ZX01035-001-001-003);上海市教育发展基金会晨光计划

摘　　要：提出了一种基于电路划分的模拟电路IP核保护算法.首先将模拟电路建模成带权超图,利用最大割划分算法进行划分,通过对割边线网进行加密,从而扰乱模拟电路的拓扑结构.通过对典型的模拟电路进行实验验证和理论分析,本算法可以有效保护模拟电路IP核的内容,不影响版图制作和后端功能验证,同时对仿真性能和面积开销的影响也在可接受的范围.A partition-based IP protection algorithm for analog circuits is proposed here.In the proposed algorithm,the analog circuits are modeled as weighted hypergraphs.The hypergraphs are then partitioned into several parts with maximum cut algorithm.The cut edges are encoded by switchers and the topologies of the analog circuits are thus protected.The proposed algorithm can efficiently protect the IPs of analog circuits and the physical design and verification are not affected by the protection.Several test cases have demonstrated that the proposed algorithm can protect the IPs with acceptable performance loss and area overhead.

关 键 词：IP核保护 模拟电路 电路划分 最大割 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]