Image Encryption with Variable Length Key. Issue 3 (3rd May 2016)

• Record Type: Journal Article
• Authors: Guanghui, Cao; Xing, Zhang; Yanjun, Liu
• Is Part Of: IETE technical review. Volume 33:Issue 3(2016)
• Page Start: 297
• Page End: 309
• Publication Date: 2016-05-03
• Subjects: chaos -- image encryption -- pseudo-random number -- variable length key; Telecommunication -- Periodicals; Electronics -- Periodicals; Electronics; Telecommunication; Periodicals; 621.38
• DOI: 10.1080/02564602.2015.1088412
• Languages: English
• ISSNs: 0256-4602

Abstract

ABSTRACT: We propose a new image encryption algorithm with variable length running key based on a modified tent map. This modified tent map can generate uniform distribution pseudo-random number sequence. In the proposed image encryption, we employ the strategy of variable length running key which enlarges key value space, the strategy of one-time running key which is resilient to known/chosen plaintext attack, the strategy of cipher disturbance which minimizes dynamical degradation of digital chaos. Simulations have been carried out and the results demonstrate the strong survival ability of our scheme.