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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
On the security of a new image encryption scheme based on chaotic map lattices
Chaos, Volume 18, No. 3, Article 033112, Year 2008
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Description
This paper reports a detailed cryptanalysis of a recently proposed encryption scheme based on the logistic map [A. Pisarchik, Chaos 16, 033118 (2006)]. Some problems are emphasized concerning the key space definition and the implementation of the cryptosystem using floating-point operations. It is also shown how it is possible to reduce considerably the key space through a ciphertext-only attack. Moreover, a timing attack allows for the estimation of part of the key due to the existent relationship between this part of the key and the encryption/decryption time. As a result, the main features of the cryptosystem do not satisfy the demands of secure communications. Some hints are offered to improve the cryptosystem under study according to those requirements. © 2008 American Institute of Physics.
Authors & Co-Authors
Arroyo, David
Spain, Madrid
Csic - Instituto de Física Aplicada Ifa
Rhouma, Rhouma
Tunisia, Tunis
Université de Tunis el Manar, Ecole Nationale D'ingénieurs de Tunis
Alvarez, Gonzalo
Spain, Madrid
Csic - Instituto de Física Aplicada Ifa
Li, Shujun
Germany, Hagen
Fernuniversität in Hagen
Germany, Konstanz
Universität Konstanz
Fernandez, Veronica
Spain, Madrid
Csic - Instituto de Física Aplicada Ifa
Statistics
Citations: 137
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1063/1.2959102