PRESENT (cipher)
| General | |
|---|---|
| Designers | Orange Labs, Ruhr University Bochum and the Technical University of Denmark |
| First published | 2007-08-23 |
| Cipher detail | |
| Key sizes | 80 or 128 bits |
| Block sizes | 64 bits |
| Structure | SPN |
| Rounds | 31 |
PRESENT is a lightweight block cipher, developed by the Orange Labs (France), Ruhr University Bochum (Germany) and the Technical University of Denmark in 2007. PRESENT is designed by Andrey Bogdanov, Lars R. Knudsen, Gregor Leander, Christof Paar, Axel Poschmann, Matthew J. B. Robshaw, Yannick Seurin, and C. Vikkelsoe.[1] The algorithm is notable for its compact size (about 2.5 times smaller than AES).[2]
Overview
The block size is 64 bits and the key size can be 80 bit or 128 bit. The non-linear layer is based on a single 4-bit S-box which was designed with hardware optimizations in mind. PRESENT is intended to be used in situations where low-power consumption and high chip efficiency is desired. The International Organization for Standardization and the International Electrotechnical Commission included PRESENT in the new international standard for lightweight cryptographic methods.[2][3]
Cryptanalysis
A truncated differential attack on 26 out 31 of rounds of PRESENT was suggested in 2014.[4]
Several full-round attacks using biclique cryptanalysis have been introduced on PRESENT.[5][6]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- PRESENT: An Ultra-Lightweight Block Cipher
- http://www.lightweightcrypto.org/implementations.php Software Implementations in C and Python
- http://cis.sjtu.edu.cn/index.php/Software_Implementation_of_Block_Cipher_PRESENT_for_8-Bit_Platforms C implementation
- http://www.emsec.rub.de/media/crypto/veroeffentlichungen/2011/01/29/present_ches2007_slides.pdf Talk slides from Cryptographic Hardware and Embedded Systems
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