Name
Abstract | ||
|---|---|---|
Wadi and Zainal recently proposed a high definition image encryption algorithm based on a modified AES-128 block cipher in (Wirel Pers Commun 79(2):811---829, 2014). In this paper, we show that the core component of their image encryption algorithm, a modified AES-128 cipher, is insecure against impossible differential attack. The proposed impossible differential attack on the full rounds of the modified AES-128 cipher has a time complexity of around $$2^{88.74}$$288.74 encryptions with $$2^{114.06}$$2114.06 chosen plaintexts and $$2^{99}$$299 bytes of memory, in contrast to the expected security of $$2^{128}$$2128. The existence of such an attack disproves the claims made by the designers that their modified AES-128 cipher improves the security of the AES cipher and that it can subsequently be used to construct a secure image encryption scheme. The root cause of this attack, some other issues with the modified AES cipher and possible solutions are described to serve as important remarks in designing a secure image encryption scheme. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1007/s11277-016-3192-1 | Wireless Personal Communications |
Keywords | Field | DocType |
Image encryption,Modified AES,Cryptanalysis,Impossible differential attack | Transposition cipher,Cipher,Block cipher,Computer science,Computer network,Arithmetic,Theoretical computer science,Stream cipher,Triple DES,Two-square cipher,Slide attack,Differential cryptanalysis | Journal |
Volume | Issue | ISSN |
88 | 3 | 0929-6212 |
Citations | PageRank | References |
1 | 0.36 | 15 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wun-She Yap | 1 | 105 | 17.55 |
| Raphael C.-W. Phan | 2 | 703 | 66.89 |
| Bok-Min Goi | 3 | 498 | 62.02 |