A homophonic Rijndael
Yi‐Shiung Yeh, Ching-Hung Hsu · Journal of Information and Optimization Sciences · 2002
In this work, a variation of Rijndael is proposed. Rijndael algorithm is strengthened by adding some random bits into the plaintext. One random bit is added into each 7 bits of plaintext to form a byte. The three data block sizes of variation Rijndael are 112, 168 and 224 with three optional key sizes unchanged.