# ISO/IEC 9979:1991 — Withdrawn and superseded ISO standards

For ISO/IEC 9979:1991, item title is Data cryptographic techniques — Procedures for the registration of cryptographic algorithms; status code is 9599; successor is ISO/IEC 9979:1999; withdrawn / published date is 1991-12-19, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 9979:1991 _(verified: appears in the quote below)_
- **Item title:** Data cryptographic techniques — Procedures for the registration of cryptographic algorithms _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 9979:1999
- **Withdrawn / published date:** 1991-12-19 _(verified: appears in the quote below)_

## What the source says

> 17887,IS,,ISO/IEC 9979:1991,Data cryptographic techniques — Procedures for the registration of cryptographic algorithms,Techniques cryptographiques — Procédures pour l'enregistrement des algorithmes cryptographiques,1991-12-19,1,['35.030'],ISO/IEC JTC 1/SC 27,9599,,[28107],"['en','fr']",5,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).