This document provides guidelines on using zero-knowledge proofs (ZKP) to improve privacy by reducing the risks associated with the sharing or transmission of personal data between organizations and users by minimizing unnecessary information disclosure. It includes several ZKP functional requirements relevant to a range of different business use cases, then describes how different ZKP models can be used to meet those functional requirements securely.
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.