کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
461158 | 696566 | 2012 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Cryptanalyzing a chaos-based image encryption algorithm using alternate structure Cryptanalyzing a chaos-based image encryption algorithm using alternate structure](/preview/png/461158.png)
Recently, a chaos-based image encryption algorithm with an alternate structure (IEAS) was proposed. This paper applies the differential cryptanalysis on the IEAS and finds that some of its properties favor the differential attack which can recover an equivalent secret key with only a few number of chosen plain-images. Detailed procedures for cryptanalyzing IEAS with a lower round number are presented. Both theoretical analysis and experimental results are provided to show the vulnerability of IEAS against differential attack. In addition, some other security defects of IEAS, including insensitivity with respect to changes of plain-images and insufficient size of the key space, are also pointed out and verified.
► Some properties of a chaos-based image encryption algorithm with an alternate structure (IEAS) were explored to support cryptographic attacks.
► Detailed procedures for cryptanalyzing IEAS with a lower round number are presented, which can be extended to the case of higher round numbers.
► Some other security defects of IEAS, including insufficient size of key space, are pointed out.
Journal: Journal of Systems and Software - Volume 85, Issue 9, September 2012, Pages 2077–2085