Text Encryption Algorithm Based Cyclic Shift

Based on the analyses of two kinds of physical encryption algorithm, this paper proposed a matrix scrambling algorithm which is based on two-way circular queue, three other improved algorithms were also presented. This matrix scrambling algorithm can be used for text encryption. The discussion of characteristics of these algorithms was also included in this paper, these algorithms were also evaluated by several different methods, and the evaluation results confirmed that the cyclic dual line (or dual rank) shift formula is an optimal matrix scrambling method.