PRESENT (cipher)

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PRESENT
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 new ultra lightweight block cipher algorithm, developed by the Orange Labs (France), Ruhr University Bochum (Germany) and the Technical University of Denmark. PRESENT is designed by Andrey Bogdanov, Lars R. Knudsen, Gregor Leander, Christof Paar, Axel Poschmann, Matthew J. B. Robshaw, Yannick Seurin, and C. Vikkelsoe. It is one of the most compact encryption methods ever designed and is 2.5 times smaller than AES (Advanced Encryption Standard).^[1] The block size is 64 bits and the key size can be 80 bit or 128 bit. It 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]^[1]

References

↑ 1.0 1.1 Katholieke Universiteit Leuven. "Ultra-lightweight encryption method becomes international standard". Retrieved 2012-02-28.
↑ ISO. "ISO/IEC 29192-2:2012". Retrieved 2012-02-28.

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

v t e Block ciphers (security summary)

Common algorithms	AES Blowfish DES Triple DES Serpent Twofish

Less common algorithms	Camellia CAST-128 IDEA RC2 RC5 SEED Skipjack TEA XTEA

Other algorithms	3-Way Akelarre Anubis ARIA BaseKing BassOmatic BATON BEAR and LION CAST-256 Chiasmus CIKS-1 CIPHERUNICORN-A CIPHERUNICORN-E CLEFIA CMEA Cobra COCONUT98 Crab Cryptomeria/C2 CRYPTON CS-Cipher DEAL DES-X DFC E2 FEAL FEA-M FROG G-DES GOST Grand Cru Hasty Pudding cipher Hierocrypt ICE IDEA NXT Intel Cascade Cipher Iraqi KASUMI KeeLoq KHAZAD Khufu and Khafre KN-Cipher Ladder-DES Libelle LOKI97 LOKI89/91 Lucifer M6 M8 MacGuffin Madryga MAGENTA MARS Mercy MESH MISTY1 MMB MULTI2 MultiSwap New Data Seal NewDES Nimbus NOEKEON NUSH PRESENT Q RC6 REDOC Red Pike S-1 SAFER SAVILLE SC2000 SHACAL SHARK Simon SMS4 Speck Spectr-H64 Square SXAL/MBAL Threefish Treyfer UES Xenon xmx XXTEA Zodiac

Design	Feistel network Key schedule Lai-Massey scheme Product cipher S-box P-box SPN Avalanche effect Block size Key size Key whitening No weak keys

Attack (cryptanalysis)	Brute-force (EFF DES cracker) MITM Linear (Piling-up lemma) Differential (Impossible Truncated Higher-order) Differential-linear Integral (aka Square) Boomerang Mod n Related-key Slide Rotational Timing XSL Interpolation Partitioning Davies' Rebound

Standardization	AES process CRYPTREC NESSIE

Utilization	Initialization vector Mode of operation Padding

v t e Cryptography

History of cryptography Cryptanalysis Cryptography portal Outline of cryptography

Symmetric-key algorithm Block cipher Stream cipher Public-key cryptography Cryptographic hash function Message authentication code Random numbers Steganography

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