摘要
求解有限域中的逆二次特征问题,设计了一类新的HILL密码体系(NEW-HILL),数值实验说明了该密码体系的可行性.该密码体系动态构造密钥矩阵,增强了安全性,通信双方参与构造密钥矩阵,增强了不可抵赖性,组织者参与且见证构造密钥矩阵,增强了不可伪造性,该密码体系算法简练,便于固化为硬件,重复使用.
In this paper, a new HILL cryptosystem with tripartite witness capacity is designed by solving the quadratic inverse eigenvalue problem in Galois field. The numerical experiments demonstrate that the system is feasible. In the cryptosystem, key matrix is dynamically constructed with enhanced communication security. Both communicating parties construct the matrix, which strengthens non-repudiation. Organizers participate in and witness the construction of key matrix to improve the unforgeability. The cryptosystem algorithm is concise and convenient for hardware to be reused.
出处
《江西理工大学学报》
CAS
2013年第3期86-89,共4页
Journal of Jiangxi University of Science and Technology
基金
国家科技支撑计划课题(2009BAI78B02)
江西省自然科学基金资助项目(2009GZS0004)
关键词
有限域
逆二次特征问题
三方见证
HILL密码体系
Galois field
quadratic inverse eigenvalue problem
tripartite witness
HILL cryptosystem