一种基于数位置乱的加密体制的设计与研究  

The Design and Research of an Encryption Algorithm Based on Data-Scrambling

作　　者：唐松生[1] 吕丽平[1] 

机构地区：[1]青岛科技大学计算机系,山东266042

出　　处：《网络安全技术与应用》2005年第5期12-13,共2页Network Security Technology & Application

摘　　要：提出一种基于数位置乱的加密体制,该方案中首先采用置乱算法将明文信息的奇数位提取出来组成一个新的信息;将明文信息的偶数位提取出来组成另外一个信息。然后采用加密算法分别对置乱后组成的新信息进行加密,这样使得加密后的信息具有更好的抗攻击性。该方案将置乱算法与加密技术有机的结合在一起,更能保障信息的机密性和完整性,同时该方案费用低、安全性高、实用性强,在保密通信领域有广阔的应用前境。An encryption algorithm based on data-scrambling is presented. Firstly, we extract odd number bits of the important information to form a new information. At the same time we extract even number bits of the important information to form another new information. Then an encryptiqn algorithm is used to encrypt the scrambled information. Thus can enhance the security of the important information. The scheme successfully combines the scrambling algorithm with the traditional encryption technology. And this greatly improves the capability of guaranteeing the information's safety and its intactness. At the same time, because this scheme costs little and is easily used that it will be used widely in secret communications.

关 键 词：加密体制 设计与研究 数位 置乱算法 加密算法 抗攻击性 加密技术 保密通信 信息 组成 方案 机密性 安全性 实用性 提取 明文 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]