Find, M.
, Smith-Tone, D.
and Sonmez, M.
(2015),
The Number of Boolean Functions with Multiplicative Complexity 2, IACR ePrint, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919209, http://ia.cr/2015/1041
(Accessed October 6, 2024)
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The Number of Boolean Functions with Multiplicative Complexity 2
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Abstract
Multiplicative complexity is a complexity measure, which is defined as the minimum number of AND gates required to implement a given primitive by a circuit over the basis (AND, XOR, NOT), with an unlimited number of NOT and XOR gates. Implementations of ciphers with a small number of AND gates are preferred in protocols for fully homomorphic encryption, multi-party computation and zero-knowledge proofs. In 2002, Fischer and Peralta showed that the number of $n$-variable Boolean functions with multiplicative complexity one equals $2^{n+1}\binom{2^n-1}{2}$. In this paper, we study Boolean functions with multiplicative complexity 2. By characterizing the structure of these functions in terms of affine equivalence relations, we provide a closed form formula for the number of Boolean functions with multiplicative complexity 2.Citation
IACR ePrint
Volume
2015
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Keywords
Affine equivalence, Boolean functions, Cryptography, Multiplicative complexity, Self-mappings
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Created October 27, 2015, Updated October 2, 2017