Akelarre (cipher)
From Wikipedia, the free encyclopedia
Akelarre is a block cipher proposed in 1996, and combined features from IDEA and RC5. It was shown to be susceptible even to a ciphertext-only attack in 2000 (Knudsen and Rijmen, 2000).
Akelarre is a 128-bit block cipher with a variable key-length which must be some multiple of 64 bits. The number of rounds is variable, but four are suggested. The round function of Akelarre is similar to IDEA in structure.
[edit] References
- Lars Knudsen and Vincent Rijmen, Ciphertext-only Attack on Akelarre, Cryptologia, Vol. 24(2), April 2000, pp135–147.
- G. Álvarez Marañón, A. Fúster Sabater, D. Guía Martínez, F. Montoya Vitini y A. Peinado Domínguez, Akelarre: a New Block Cipher Algorithm, pp1–14, in proceedings of SAC'96, Third Annual Workshop on Selected Areas in Cryptography, Queen's University, Kingston, Ontario, 1996 [1].
- Niels Ferguson and Bruce Schneier, Cryptanalysis of Akelarre, Fourth Annual Workshop on Selected Areas in Cryptography, August 1997, pp201–212 (PDF).
