1. J. Borst, “Weak keys of Crypton,” technical comment submitted to NIST.
2. J. Daemen, L. Knudsen and V. Rijmen, “The block cipher Square,” Fast Software Encryption, LNCS 1267, E. Biham, Ed., Springer-Verlag, 1997, pp. 149–165.
3. Lim, “CRYPTON: A New 128-bit Block Cipher,” available from [5].
4. Lim, “Specification and Analysis of Crypton Version 1.0,” FSE’ 99, these proceedings.
5. S. Vaudenay, “Weak keys in Crypton,” announcement on NIST’s electronic AES forum, cf. [5].