[Resource Topic] 2020/570: On Optimality of d + 1 TI Shared Functions of 8 Bits or Less

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Title:
On Optimality of d + 1 TI Shared Functions of 8 Bits or Less

Authors: Dušan Božilov

Abstract:

We present a methodology for finding minimal number of output shares in d + 1 TI by modeling the sharing as set covering problem and using different discrete optimization techniques to find solutions. We demonstrate the results of our technique by providing optimal or near-optimal sharings of several classes of Boolean functions of any degree up to 8 variables, for first and second order TI. These solutions present new lower bounds for the total number of shares for these types of functions

ePrint: https://eprint.iacr.org/2020/570

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