Arithmetic Circuit Implementations of S-boxes for SKINNY and PHOTON in MPC

ePrint Report: Arithmetic Circuit Implementations of S-boxes for SKINNY and PHOTON in MPC

Aysajan Abidin, Erik Pohle, Bart Preneel

Secure multi-party computation (MPC) enables multiple distrusting parties to compute a function while keeping their respective inputs private. In a threshold implementation of a symmetric primitive, e.g., of a block cipher, each party holds a share of the secret key or of the input block. The output block is computed without reconstructing the secret key. This enables the construction of distributed …

block computation compute eprint report function implementation inputs mpc party photon private report symmetric threshold