Cryptanalysis of two chaotic encryption schemes based on circular bit shift and XOR operations
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 23-30 |
| Journal / Publication | Physics Letters, Section A: General, Atomic and Solid State Physics |
| Volume | 369 |
| Issue number | 1-2 |
| Publication status | Published - 10 Sept 2007 |
Link(s)
Abstract
Recently two encryption schemes were proposed by combining circular bit shift and XOR operations, under the control of a pseudorandom bit sequence (PRBS) generated from a chaotic system. This Letter studies the security of these two encryption schemes and reports the following findings: (1) there exist some security defects in both schemes; (2) the underlying chaotic PRBS can be reconstructed as an equivalent key by using only two chosen plaintexts; (3) most elements in the underlying chaotic PRBS can be obtained by a differential known-plaintext attack using only two known plaintexts. Experimental results are given to demonstrate the feasibility of the proposed attack. © 2007 Elsevier B.V. All rights reserved.
Research Area(s)
- Chaos, Chosen-plaintext attack, Cryptanalysis, Delayed chaotic neural network, Differential cryptanalysis, Encryption, Known-plaintext attack
Citation Format(s)
Cryptanalysis of two chaotic encryption schemes based on circular bit shift and XOR operations. / Li, Chengqing; Li, Shujun; Alvarez, Gonzalo et al.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 369, No. 1-2, 10.09.2007, p. 23-30.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 369, No. 1-2, 10.09.2007, p. 23-30.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
