# ISO/IEC 9796-2:2002 — Withdrawn and superseded ISO standards

For ISO/IEC 9796-2:2002, item title is Information technology — Security techniques — Digital signature schemes giving message recovery — Part 2: Integer factorization based mechanisms; status code is 9599; successor is ISO/IEC 9796-2:2010; withdrawn / published date is 2002-10-10, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 9796-2:2002 _(verified: appears in the quote below)_
- **Item title:** Information technology — Security techniques — Digital signature schemes giving message recovery — Part 2: Integer factorization based mechanisms _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 9796-2:2010
- **Withdrawn / published date:** 2002-10-10 _(verified: appears in the quote below)_

## What the source says

> 35455,IS,,ISO/IEC 9796-2:2002,Information technology — Security techniques — Digital signature schemes giving message recovery — Part 2: Integer factorization based mechanisms,Technologies de l'information — Techniques de sécurité — Schémas de signature numérique rétablissant le message — Partie 2: Mécanismes basés sur une factorisation entière,2002-10-10,2,['35.030'],ISO/IEC JTC 1/SC 27,9599,[28232],[54788],['en'],47,"<p>ISO/IEC 9796-2:2002 specifies three digital signature schemes giving message recovery, two of which are deterministic (non-randomized) and one of which is randomized. The security of all three schemes is based on the difficulty of factorizing large numbers. All three scheme

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).