计算机科学 ›› 2016, Vol. 43 ›› Issue (Z11): 373-376.doi: 10.11896/j.issn.1002-137X.2016.11A.086
徐太忠,杨天池,程娟,邵奇峰
XU Tai-zhong, YANG Tian-chi, CHENG Juan and SHAO Qi-feng
摘要： 物理不可克隆函数(Physical Unclonable Function,PUF)是新型的硬件安全技术,利用芯片的“物理指纹”特征实现密钥生成和身份认证等不同功能。提出了一种基于纠错码技术的模糊提取器,用于提高SRAM类PUF的鲁棒性。模糊提取器工作分为生成阶段和重构阶段,生成阶段利用BCH编码产生与PUF响应相关的辅助数据,重构过程利用辅助数据和BCH码的纠错功能重建PUF的稳定响应输出。模糊提取器在ATSAMV70J19处理器上进行实验,在不同的工作温度条件下, 其一致性指标可达到99.9%,验证了该方法的有效性。
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