EFFICIENT QUANTUM-ATTACK RESISTANT FUNCTIONAL-SAFE BUILDING BLOCK FOR KEY ENCAPSULATION AND DIGITAL SIGNATURE

摘要

An apparatus comprises an input register comprising a state register and a parity field, a first round secure hash algorithm (SHA) datapath communicatively coupled to the state register, comprising a first section to perform a θ step of a SHA calculation, a second section to perform a ρ step and a ρ step of the SHA calculation, a third section to perform a χ step of the SHA calculation and a fourth section to perform a τ step of the SHA calculation.