LOKI97
In cryptography, LOKI97 is a block cipher which was a candidate in the Advanced Encryption Standard competition. It is a member of the LOKI family of ciphers, earlier instances being LOKI89 and LOKI91. LOKI97 was designed by Lawrie Brown, assisted by Jennifer Seberry and Josef Pieprzy.Like DES, LOKI97 is a 16-round Feistel cipher, and like other AES candidates, has a 128-bit block size and a choice of a 128-, 192- or 256-bit key length. The key schedule is also a Feistel structure — an unbalanced one unlike the main network — but using the same F-function.
The authors have stated that, "LOKI97 is a non-proprietary algorithm, available for royalty-free use worldwide as a possible replacement for the DES or other existing block ciphers."
References
- L. Brown, J. Pieprzyk: Introducing the new LOKI97 Block Cipher
- L.R. Knudsen and V. Rijmen, "Weaknesses in LOKI97", Proceedings of the 2nd AES Candidate Conference , Rome, March 22-23, 1999, pp. 168–174.
External links
- The LOKI97 homepage
- The design of LOKI97
- SCAN's entry for LOKI97
- John Savard's Description of LOKI97
This article is a stub. You can help Wikipedia by [ expanding it].
Block ciphers |
Algorithms: 3-Way | AES | Blowfish | Camellia | CAST-128 | CAST-256 | CMEA | DEAL | DES | DES-X | FEAL | G-DES | GOST | IDEA | Iraqi | KASUMI | KHAZAD | Khufu and Khafre; | LOKI89/91 | LOKI97 | Lucifer | MacGuffin | Madryga | MAGENTA | MARS | MISTY1 | MMB | NewDES | RC2 | RC5 | RC6 | Red Pike; | S-1 | SAFER | Serpent | SHARK | Skipjack | Square | TEA | Triple DES; | Twofish | XTEA |
Design: Feistel network; | Key schedule; | Product cipher; | S-box | SPN Attacks: Brute force; | Linear / Differential cryptanalysis | Mod n; | XSL Standardisation: AES process; | CRYPTREC | NESSIE Misc: Avalanche effect | Block size; | IV | Key size; | Modes of operation; | Piling-up lemma; | Weak key; |