The block cipher Rijndael

What is Rijndael ?

Rijndael is a block cipher, designed by Joan Daemen and Vincent Rijmen as a candidate algorithm for the AES .
The cipher has a variable block length and key length. We currently specified how to use keys with a length of 128, 192, or 256 bits to encrypt blocks with al length of 128, 192 or 256 bits (all nine combinations of key length and block length are possible). Both block length and key length can be extended very easily to multiples of 32 bits.
Rijndael can be implemented very efficiently on a wide range of processors and in hardware.

The design of Rijndael was strongly influenced by the design of the block cipher Square .

The following files are available for download:

Rijndael is available for free. You can use it for whatever purposes you want, irrespective of whether it is accepted as AES or not.

Other Implementations


This page is maintained by Vincent Rijmen.
vincent.rijmen@esat.kuleuven.ac.be