Designs and their codes
Signal Design for Good Correlation: For Wireless Communication, Cryptography, and Radar
Signal Design for Good Correlation: For Wireless Communication, Cryptography, and Radar
Quaternary constant-amplitude codes for multicode CDMA
IEEE Transactions on Information Theory
One and two-variable interlace polynomials: a spectral interpretation
WCC'05 Proceedings of the 2005 international conference on Coding and Cryptography
Generalized Bent Criteria for Boolean Functions (I)
IEEE Transactions on Information Theory
Negabent Functions in the Maiorana---McFarland Class
SETA '08 Proceedings of the 5th international conference on Sequences and Their Applications
On quadratic approximations in block ciphers
Problems of Information Transmission
On the Symmetric Negabent Boolean Functions
INDOCRYPT '09 Proceedings of the 10th International Conference on Cryptology in India: Progress in Cryptology
Nega-hadamard transform, bent and Negabent functions
SETA'10 Proceedings of the 6th international conference on Sequences and their applications
Characterizing negabent boolean functions over finite fields
SETA'12 Proceedings of the 7th international conference on Sequences and Their Applications
The selfnegadual properties of generalised quadratic Boolean functions
Designs, Codes and Cryptography
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Bent functions f : F2m → F2 achieve largest distance to all linear functions. Equivalently, their spectrum with respect to the Hadamard-Walsh transform is flat (i.e. all spectral values have the same absolute value). That is equivalent to saying that the function f has optimum periodic autocorrelation properties. Negaperiodic correlation properties of f are related to another unitary transform called the nega-Hadamard transform. A function is called negabent if the spectrum under the nega-Hadamard transform is flat. In this paper, we consider functions f which are simultaneously bent and negabent, i.e. which have optimum periodic and negaperiodic properties. Several constructions and classifications are presented.