# ISO 14888-3 Revision Checker

> The free, cited record of ISO/IEC 14888-3:2018/Amd 1 (IT Security techniques, Digital signatures with appendix, Part 3: Discrete logarithm based mechanisms, Amendment 1), at ISO stage 60.00, International Standard under publication, on 16 October 2026. It adds EdDSA for Ed25519 and Ed448. 33 clause records, a free scope check, a dated plan, a USD 799 kit and a USD 49 a month change watch.

Not affiliated with ISO or the IEC. Not legal advice; does not certify.

## The rule
- Designation: ISO/IEC 14888-3:2018/Amd 1
- Committee: ISO/IEC JTC 1/SC 27; ICS 35.030
- Stage: 60.00, International Standard under publication, stage date 16 October 2026
- Ballot: 2026-08-20 to 2026-10-15
- Base standard: ISO/IEC 14888-3:2018, fourth edition, 2018-11, 155 pages
- Planning date: 16 February 2027, an outer planning date, not an ISO date

## Prices
- Kit: USD 799, one payment. Register, evidence list and dated plan as PDF, CSV and XLSX.
- Change watch: USD 49 a month. Email with the diff when the rule, its guidance or its dates change.

## Pages
- Home: https://iso-14888-3-revision-checker.theartofservice.com/
- The record: https://iso-14888-3-revision-checker.theartofservice.com/record/ (33 clause pages, one per amendment instruction)
- Revision record: https://iso-14888-3-revision-checker.theartofservice.com/revision/
- Dated plan: https://iso-14888-3-revision-checker.theartofservice.com/plan/
- Free check: https://iso-14888-3-revision-checker.theartofservice.com/scope/
- Pricing: https://iso-14888-3-revision-checker.theartofservice.com/pricing/
- Kit: https://iso-14888-3-revision-checker.theartofservice.com/kit/
- Change watch: https://iso-14888-3-revision-checker.theartofservice.com/watch/
- Rules by market: https://iso-14888-3-revision-checker.theartofservice.com/rules/
- Answers: https://iso-14888-3-revision-checker.theartofservice.com/answers/
- About: https://iso-14888-3-revision-checker.theartofservice.com/about/
- Method: https://iso-14888-3-revision-checker.theartofservice.com/method/
- Sources: https://iso-14888-3-revision-checker.theartofservice.com/sources/
- Changelog: https://iso-14888-3-revision-checker.theartofservice.com/changelog/

## What the amendment changes
- EdDSA as a fifteenth mechanism, specified for Ed25519 and Ed448
- a term for the complete twisted Edwards curve group, and the symbols that go with it
- a normative reference to the lightweight hash-function part
- a narrowed hash list for EC-DSA, and a hash strength rule for KCDSA and SDSA
- a replaced Annex A with object identifiers for Ed25519 and Ed448
- point encoding and decoding for EdDSA, and worked examples for both parameter sets
- updated comparison and claimed-feature tables that now include EdDSA

## What it is not
- a management system standard, and there is no certificate against it
- a replacement for ISO/IEC 27001 or for your cryptography policy
- a legal obligation in itself; it binds when a contract, scheme or regulator points at it
- a reason to re-key an estate; the existing mechanisms stay specified
- a guarantee that a library is correct; the verifier rules still have to be tested

## Source
- ISO record: https://www.iso.org/standard/89517.html
- ISO feed: https://www.iso.org/contents/data/standard/08/95/89517.detail.rss
- The amendment in the compliance library: https://compliance.theartofservice.com/frameworks/iso-iec-14888-3-2018-amd-1