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Paper 2014/978
Improved Differential Analysis of Block Cipher PRIDE
Qianqian Yang and Lei Hu and Siwei Sun and Kexin Qiao and Ling Song and Jinyong Shan and Xiaoshuang Ma
Abstract
In CRYPTO 2014 Albrecht \emph{et al.} brought in a 20-round iterative lightweight block cipher PRIDE which is based on a good linear layer for achieving a tradeoff between security and efficiency. A recent analysis is presented by Zhao \emph{et al.}. Inspired by their work, we use an automatic search method to find out 56 iterative differential characteristics of PRIDE, containing 24 1-round iterative characteristics, based on three of them we construct a 15-round differential and perform a differential attack on the 19-round PRIDE, with data, time and memory complexity of $2^{62}$, $2^{63}$ and $2^{71}$ respectively.
Metadata
- Available format(s)
- Category
- Secret-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- Block CipherPRIDEDifferential attackActive S-boxAutomatic Method
- Contact author(s)
- yangqianqian521 @ 126 com
- History
- 2014-12-07: received
- Short URL
- https://ia.cr/2014/978
- License
-
CC BY