NOEKEON
General | |
---|---|
Designers | Joan Daemen, Michaël Peeters, Gilles Van Assche, Vincent Rijmen |
First published | 2000-09 |
Derived from | 3-Way, BaseKing |
Cipher detail | |
Key sizes | 128 bits |
Block sizes | 128 bits |
Rounds | 16 |
NOEKEON /ˈnuːki.ɒn/ is a family of two block ciphers designed by Joan Daemen, Michaël Peeters, Gilles Van Assche and Vincent Rijmen and submitted to the NESSIE project in September 2000. The two ciphers are "direct mode" NOEKEON, to be used for maximum efficiency where related-key attacks are not possible, and "indirect mode" NOEKEON where they are.
NOEKEON has a 128-bit block and key size. Each round of NOEKEON employs a sequence of self-inverse transformations which can be implemented easily in hardware or software, even where
Cryptanalysis by
The authors of NOEKEON contend ("On NOEKEON, no!") that the related-key attacks required to break "indirect mode" NOEKEON are not a practical concern, and that it is as a result of deliberate design that NOEKEON is not vulnerable to the attacks that break the variant ciphers; they assert that NOEKEON is still a good and useful cipher.