Lecture notes in computer sciences; 218 on Advances in cryptology---CRYPTO 85
Nonlinearity criteria for cryptographic functions
EUROCRYPT '89 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
SAFER K-64: A Byte-Oriented Block-Ciphering Algorithm
Fast Software Encryption, Cambridge Security Workshop
Structured Design of Substitution-Permutation Encryption Networks
IEEE Transactions on Computers
INDOCRYPT '02 Proceedings of the Third International Conference on Cryptology: Progress in Cryptology
WAIFI '08 Proceedings of the 2nd international workshop on Arithmetic of Finite Fields
A new method to determine algebraic expression of power mapping based S-boxes
Information Processing Letters
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We examine diffusion properties of Rijndael which has been selected by US National Institute of Standards and Technology (NIST) for the proposed Advanced Encryption Standard (AES). Since the s-box of Rijndael applies a nonlinear transformation operating on each byte of the intermediate cipher result independently, its characteristics have significant effects on the strength of the entire system. The characteristics of Rijndael's s-box are investigated for the criteria of avalanche, strict avalanche, bit independence, nonlinearity and XOR table distribution. We also evaluate the overall performance for different rounds of Rijndael, and compare it to Safer K-64, in terms of Avalanche Weight Distribution (AWD) criterion.