# ISO/IEC 18031:2011 — Withdrawn and superseded ISO standards

For ISO/IEC 18031:2011, item title is Information technology — Security techniques — Random bit generation; status code is 9599; successor is ISO/IEC 18031:2025; withdrawn / published date is 2011-11-08, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 18031:2011 _(verified: appears in the quote below)_
- **Item title:** Information technology — Security techniques — Random bit generation _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 18031:2025
- **Withdrawn / published date:** 2011-11-08 _(verified: appears in the quote below)_

## What the source says

> 54945,IS,,ISO/IEC 18031:2011,Information technology — Security techniques — Random bit generation,Technologies de l'information — Techniques de sécurité — Génération de bits aléatoires,2011-11-08,2,['35.030'],ISO/IEC JTC 1/SC 27,9599,"[30816,52087]",[81645],['en'],142,"<p>ISO/IEC 18031:2011 specifies a conceptual model for a random bit generator for cryptographic purposes, together with the elements of this model.</p><p>ISO/IEC 18031:2011</p><ul><li>specifies the characteristics of the main elements required for a non-deterministic random bit generator,</li><li>specifies the characteristics of the main elements required for a deterministic random bit generator,</li><li>establishes the securi

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).