A Novel Secure Transposition Cipher Technique using Arbitrary Zigzag Patterns

Symmetric cipher cryptography is an efficient technique for encrypting bits and letters to maintain secure communication data confidentiality. Compared asymmetric cryptography, symmetric has the speed advantage required various real-time applications. Yet, with distribution of micro-devices wider utilization Internet Things (IoT) Wireless Sensor Network (WSN), lightweight algorithms are operate on such devices. This paper proposes a based scheme consisting multiple zigzag patterns, secret key variable length, block size. The proposed system uses transposition principles generate encryption patterns particular initial point over grid. total number cells in grid its dimension variable. Various can be created same grid, leading different outcomes grids. For n cells, n! * (n-1!) generated. information encapsulated private key. Thus, huge possible variation size, which kept hidden, security technique. Moreover, padding used; two paddings lengths lead completely output even pattern inputs, improves system.