ISO/IEC 18031:2011Withdrawn

Information technology — Security techniques — Random bit generation

Technologies de l'information — Techniques de sécurité — Génération de bits aléatoires

This edition has been replaced by ISO/IEC 18031:2025.

Abstract / scope

ISO/IEC 18031:2011 specifies a conceptual model for a random bit generator for cryptographic purposes, together with the elements of this model.

ISO/IEC 18031:2011

  • specifies the characteristics of the main elements required for a non-deterministic random bit generator,
  • specifies the characteristics of the main elements required for a deterministic random bit generator,
  • establishes the security requirements for both the non-deterministic and the deterministic random bit generator.

Where there is a requirement to produce sequences of random numbers from random bit strings, ISO/IEC 18031:2011 gives guidelines on how this can be performed.

Techniques for statistical testing of random bit generators for the purposes of independent verification or validation, and detailed designs for such generators, are outside the scope of ISO/IEC 18031:2011.

Life cycle

Amendments & corrigenda

ISO/IEC 18031:2011/Cor 1:2014WithdrawnInformation technology — Security techniques — Random bit generation — Technical Corrigendum 1International Standard · Published 19 Sep 2014 · ISO/IEC JTC 1/SC 27ISO/IEC 18031:2011/Amd 1:2017WithdrawnInformation technology — Security techniques — Random bit generation — Amendment 1: Deterministic random bit generationInternational Standard · Published 6 Mar 2017 · ISO/IEC JTC 1/SC 27

Replaces

ISO/IEC 18031:2005WithdrawnInformation technology — Security techniques — Random bit generationInternational Standard · Published 4 Nov 2005 · ISO/IEC JTC 1/SC 27ISO/IEC 18031:2005/Cor 1:2009WithdrawnInformation technology — Security techniques — Random bit generation — Technical Corrigendum 1International Standard · Published 28 Jan 2009 · ISO/IEC JTC 1/SC 27

Replaced by

ISO/IEC 18031:2025PublishedInformation technology — Security techniques — Random bit generationInternational Standard · Published 3 Feb 2025 · ISO/IEC JTC 1/SC 27