A construction of Boolean functions with good cryptographic properties
Chung, Jong H.
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The two most important qualities of a cipher is security and speed. Frequently, to satisfy the security of a Boolean function primitive, speed may be traded-off. In this paper we present a general construction that addresses both qualities. The idea of our construction is to manipulate a cryptographically strong base function and one of its affine equivalent functions, using concatenation and negation. We achieve security from the inherent qualities of the base function, which we are preserved (or increased) and obtain speed by the simple Boolean operations. We present two applications of the construction to demonstrate the flexibility and efficiency of the construction.
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