Bent functions Bent functions and s-box constraints Hadamard Matrices, Statistical Designs, Bent Functions - and their Application to ... Security The Relationship Between Propagation Characteristics and Nonlinearity of Cryptographic Functions Constructing Large Cryptographically Strong S-boxes. - abstract Generalized Bent Functions - abstract Walsh Transforms Measuring Boolean Function Nonlinearity by Walsh Transform Walsh-Hadamard Transforms - a literature survey Papers S. Mister and C. Adams: "Practical s-box Design", Workshop Record of the Workshop on Selected Areas in Cryptography (SAC '96), Queen's University, Kingston, Ontario, Aug. 1996, pp.61-76. [download from here]. Links Our random number links Our cryptography links Our quasi-random number links Our prime number links