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ISO/IEC WD 20897-1

Information security, cybersecurity and privacy protection — Physically unclonable functions — Part 1: Security requirements

General information

20.20     Jun 24, 2026

ISO/IEC

ISO/IEC JTC 1/SC 27

International Standard

Scope

This document specifies the security requirements for physically unclonable functions (PUFs). Specified security requirements concern the output properties, tamper-resistance and unclonability of a single and a batch of PUFs. Since it depends on the application which security requirements a PUF needs to meet, this documents also describes the typical use cases of a PUF.
Amongst PUF use cases, random number generation is out of scope in this document.

Life cycle

PREVIOUSLY

PUBLISHED
ISO/IEC 20897-1:2020

NOW

PROJECT
ISO/IEC WD 20897-1
20.20 Working draft (WD) study initiated
Jun 24, 2026