# ISO/IEC 11770-4:2006 — Withdrawn and superseded ISO standards For ISO/IEC 11770-4:2006, item title is Information technology — Security techniques — Key management — Part 4: Mechanisms based on weak secrets; status code is 9599; successor is ISO/IEC 11770-4:2017; withdrawn / published date is 2006-05-04, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 11770-4:2006 _(verified: appears in the quote below)_ - **Item title:** Information technology — Security techniques — Key management — Part 4: Mechanisms based on weak secrets _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 11770-4:2017 - **Withdrawn / published date:** 2006-05-04 _(verified: appears in the quote below)_ ## What the source says > 39723,IS,,ISO/IEC 11770-4:2006,Information technology — Security techniques — Key management — Part 4: Mechanisms based on weak secrets,Technologies de l'information — Techniques de sécurité — Gestion de clés — Partie 4: Mécanismes basés sur des secrets faibles,2006-05-04,1,['35.030'],ISO/IEC JTC 1/SC 27,9599,,[67933],['en'],33,"

ISO/IEC 11770-4:2006 defines key establishment mechanisms based on weak secrets, i.e., secrets that can be readily memorized by a human, and hence secrets that will be chosen from a relatively small set of possibilities. It specifies cryptographic techniques specifically designed to establish one or more secret keys based on a weak secret derived from a memorized ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).