# ISO/IEC 9594-11:2020 — Withdrawn and superseded ISO standards

For ISO/IEC 9594-11:2020, item title is Information technology — Open systems interconnection directory — Part 11: Protocol specifications for secure operations; status code is 9599; successor is ISO/IEC 9594-11:2025; withdrawn / published date is 2020-12-22, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 9594-11:2020 _(verified: appears in the quote below)_
- **Item title:** Information technology — Open systems interconnection directory — Part 11: Protocol specifications for secure operations _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 9594-11:2025
- **Withdrawn / published date:** 2020-12-22 _(verified: appears in the quote below)_

## What the source says

> 75417,IS,,ISO/IEC 9594-11:2020,Information technology — Open systems interconnection directory — Part 11: Protocol specifications for secure operations,Technologies de l'information — Interconnexion de systèmes ouverts (OSI) — Partie 11: Titre manque,2020-12-22,1,['35.100.70'],ISO/IEC JTC 1/SC 6,9599,,[91503],['en'],84,"<p>The scope of this Recommendation | International Standard is threefold.</p><p>This Recommendation | International Standard provides guidance on how to prepare new and old protocols for cryptographic algorithm migration, and defines auxiliary cryptographic algorithms to be used for migration purposes.</p><p>This Recommendation | International Standard specifies a general wr

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).