Re: A modern variation of the classical polyalphabetical substitution cipher

Am 08.05.2011 13:17, schrieb Mok-Kong Shen:

M: matrix of size 256*256, each column being a permutation of [0,255],
initialized with the help of a PRNG based on a secret key.

The key should preferrably be different for different messages (cf.
my recent post of PEARL2 Version 1.1.)

M. K. Shen