摘要
该文提出了一种非查表的错误图样生成算法。该算法通过将可纠正的错误矢量的部分信息嵌入到明文消息中,从而得到比原错误矢量具有更大汉明重量的错误图样。用该算法修正的Rao-Nam私钥密码体制高效实用,既无需存储错误图样,又增强了安全性。
A new kind of algorithm is proposed which can produce random error vector without looking up the syndrome-error table. An error vector with larger Hamming weight can be produced by mixing a part of the original error vector with the plaintext. A modified Rao-Nam scheme based on the new algorithm is presented, which requires no storage for random error vector. The scheme is efficient and practical, and offers a much higher security level.
出处
《电子与信息学报》
EI
CSCD
北大核心
2005年第8期1287-1289,共3页
Journal of Electronics & Information Technology
关键词
私钥密码体制
纠错码
错误图样
Private-key cryptosystem, Error-correcting code, Error vector
