摘要
在深入研究分组密码及其工作模式的基础上,引用正交空间的成熟理论,提出一种基于生长树的复合模型.该模型对各经典分组密码算法加密后的密文进行复合,生成安全强度更高的输出序列.理论分析和实验结果表明,该模型性能良好.
On the basis of our study on block cipher and its operation mode, a novel grow tree composite model was proposed using the theory in orthogonal space. All the classical block cipher algorithms can be composed into a new output sequence with high security and low computation complexity. The experimental result and theoretical analysis show the excellent performance of this model.
出处
《中国科学院研究生院学报》
CAS
CSCD
北大核心
2009年第6期820-825,共6页
Journal of the Graduate School of the Chinese Academy of Sciences
关键词
正交空间
生长树
换位算子
结构算子
orthogonal space, grow tree, transposition operator, structure operator
