Research Article
Encrypting Multimedia Data Using Modified Baptista’s Chaos-Based Algorithm
@INPROCEEDINGS{10.1007/978-3-319-92213-3_27, author={Octaviana Datcu and Radu Hobincu and Mihai Stanciu and Radu Badea}, title={Encrypting Multimedia Data Using Modified Baptista’s Chaos-Based Algorithm}, proceedings={Future Access Enablers for Ubiquitous and Intelligent Infrastructures. Third International Conference, FABULOUS 2017, Bucharest, Romania, October 12-14, 2017, Proceedings}, proceedings_a={FABULOUS}, year={2018}, month={7}, keywords={Multimedia data encryption Chaos cipher Baptista-type algorithms}, doi={10.1007/978-3-319-92213-3_27} }- Octaviana Datcu
Radu Hobincu
Mihai Stanciu
Radu Badea
Year: 2018
Encrypting Multimedia Data Using Modified Baptista’s Chaos-Based Algorithm
FABULOUS
Springer
DOI: 10.1007/978-3-319-92213-3_27
Abstract
One of the easiest to implement, yet complex, symmetric key chaos-based ciphers is the one proposed by Baptista in 1998. It has attracted much interest from scholars, who underlined its deficiencies and proposed different methods to enhance it. The present paper proposes an additional step in the encryption procedure - a modulo two sum between the binary representations of Baptista’s cryptograms and that of the value of the chaotic logistic map at that very iteration. This results in a flat distribution of the cryptograms. Thus, one of the major drawbacks of Baptista’s cryptosystem, the exponential decay of the repartition of the cyphertext values, is surmounted. The original Baptista’s algorithm is described, the proposed method is exemplified on a short message and its results are discussed when applied on multimedia files.
