计算机科学 ›› 2019, Vol. 46 ›› Issue (6): 162-167.doi: 10.11896/j.issn.1002-137X.2019.06.024
杨雪菲, 郑东, 任方
YANG Xue-fei, ZHENG Dong, REN Fang
摘要： 基于编码的公钥密码技术能够抵抗量子算法的攻击,针对经典的CFS签名方案密钥量大的缺陷,文中提出了一种基于QC-LDPC码的CFS签名方案。该方案基于QC-LDPC码改进了传统的CFS签名方案,签名过程中使用了QC-LDPC码的BP快速译码算法。分析表明,新方案在不降低安全性的同时,能够有效抵抗现有量子算法的攻击,减小了CFS签名方案的密钥存储空间,提高了方案的签名效率。
中图分类号:
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