\documentclass{article}\usepackage{charter}\usepackage{hyperref}\usepackage{amssymb}\begin{document}\section*{Homework 6}\begin{enumerate}\item Zero-knowledge protocols depend on three main properties called completeness, soundness and zero-knowledge. Explain what they mean?\item Why do zero-knowledge protocols require an NP-problem as building block?\item Why is it a good choice in a ZKP to flip a coin when requesting a proof from the person who knows the secret?\end{enumerate}\end{document}%%% Local Variables: %%% mode: latex%%% TeX-master: t%%% End: