Abstract
The Rijndael algorithm is the new advanced encryption standard (AES) approved by the US National Institute of Standards and Technology (NIST). With this algorithm supporting significantly larger key sizes than DES (data encryption standard) supports, NIST believes that the AES has the potential of remaining secure for the next few decades. In overall performance, based on the speed of encryption and decryption and on key set-up time, the Rijndael algorithm has attained top scores in tests conducted by NIST. The belief is that almost all US government agencies will shift to the AES algorithm for their data security needs in the next few years. Also, that the algorithm will find its way in smart cards and other security-oriented applications used for safely storing private information about individuals.
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