# ISO/IEC 9798-5:2004 — Withdrawn and superseded ISO standards

For ISO/IEC 9798-5:2004, item title is Information technology — Security techniques — Entity authentication — Part 5: Mechanisms using zero-knowledge techniques; status code is 9599; successor is ISO/IEC 9798-5:2009; withdrawn / published date is 2004-12-06, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 9798-5:2004 _(verified: appears in the quote below)_
- **Item title:** Information technology — Security techniques — Entity authentication — Part 5: Mechanisms using zero-knowledge techniques _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 9798-5:2009
- **Withdrawn / published date:** 2004-12-06 _(verified: appears in the quote below)_

## What the source says

> 39720,IS,,ISO/IEC 9798-5:2004,Information technology — Security techniques — Entity authentication — Part 5: Mechanisms using zero-knowledge techniques,Technologies de l'information — Techniques de sécurité — Authentification d'entité — Partie 5: Mécanismes utilisant des techniques à divulgation nulle,2004-12-06,2,['35.030'],ISO/IEC JTC 1/SC 27,9599,[25898],[50456],['en'],50,"<p>ISO/IEC 9798-5:2004 specifies authentication mechanisms in the form of exchange of information between a claimant and a verifier.</p><p>In accordance with the types of calculations that need to be performed by a claimant and the verifier (see Annex C), the mechanisms specified in ISO/IEC 9798-5:2004 can be classified

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).