# ISO 9798-5 Revision Checker

ISO 9798-5 Revision Checker is a free, cited record of ISO/IEC DIS 9798-5, the draft fourth edition of the entity authentication part on mechanisms using zero-knowledge techniques, with a paid obligation register (USD 799 one off) and a change watch (USD 49 a month).

Canonical: https://iso-9798-5-revision-checker.theartofservice.com
Last updated: 2026-10-21
Author: Gerard Blokdijk, The Art of Service
Contact: support@theartofservice.com
Not legal advice; does not certify. Not affiliated with ISO or the IEC.

## What it is
- A record of 33 clauses and annexes, one page each, written in our own words from the public ISO record and the 2009 publisher preview
- A free scope check that reads six answers into a planning position and a dated action list
- A dated plan to the outer planning date of 16 September 2027, which is an estimate and not an ISO date
- A paid kit: the register, the evidence list and the plan as PDF, CSV and XLSX, USD 799 one off
- A paid watch: an email with the diff when the public record or this record changes, USD 49 a month

## Key facts from the public record
- Designation: ISO/IEC DIS 9798-5
- Edition: fourth
- Stage: 40.20, DIS ballot initiated for 12 weeks
- Stage date: 17 September 2026
- Committee: ISO/IEC JTC 1/SC 27
- ICS: 35.030
- Pages in the draft: 62
- Replaces: ISO/IEC 9798-5:2009, third edition, 53 pages
- Official text: https://www.iso.org/standard/89516.html
- Planning date used on this site: 16 September 2027, an estimate, not an ISO date

## Pages
- https://iso-9798-5-revision-checker.theartofservice.com/ the home page and free check
- https://iso-9798-5-revision-checker.theartofservice.com/record/ the requirement record
- https://iso-9798-5-revision-checker.theartofservice.com/revision/ the stage, the dates and the basis
- https://iso-9798-5-revision-checker.theartofservice.com/plan/ the dated plan
- https://iso-9798-5-revision-checker.theartofservice.com/scope/ the free check
- https://iso-9798-5-revision-checker.theartofservice.com/pricing/ both products and the prices
- https://iso-9798-5-revision-checker.theartofservice.com/about/ what the record is and is not
- https://iso-9798-5-revision-checker.theartofservice.com/method/ how each record is written and checked
- https://iso-9798-5-revision-checker.theartofservice.com/sources/ every source and what it proves
- https://iso-9798-5-revision-checker.theartofservice.com/answers/ five cited answers
- https://iso-9798-5-revision-checker.theartofservice.com/llms-full.txt the full page text

## Prices, in text
- Kit: USD 799, one off, PDF, CSV and XLSX
- Watch: USD 49 a month, cancel any time

## What this site does not do
- It does not reproduce the ISO text.
- It does not certify an organisation.
- It does not give legal advice.
- It does not claim that a regime requires the standard.