摘要
由传统的钥匙分配问题入手,从正交投影的角度论述和分析了密钥空间中的向量A在若干不同子空间上正交投影形成密钥分存方案的算法及数量,并且用C语言实现了密钥分解分存方案的算法,简述了编程实现算法的技术要点。又将算法用于机密数据文件的分解分存上,根据分组密码原理,对每一组数据进行投影分解,实现了机密数据文件的分组投影分解。保证了机密文件的安全性。
The article begins with the traditional topic on assigning key. By means of orthogonal projection of vector A of N dimension space on orthogonal subspace, it sets forth an algorithm forming the scheme to decompose data. The algorithm is realized in C language and the key point of programming technology is briefly described. And then a secret document was divided into groups according to regular bits, per group data was decomposed by the orthogonal projection algorithms, It is realized that secret document is decomposed so that the safe of secret document is guaranteed.
出处
《西安科技大学学报》
CAS
北大核心
2005年第1期85-88,92,共5页
Journal of Xi’an University of Science and Technology
