# ISO/IEC 10116:1991 — Withdrawn and superseded ISO standards

For ISO/IEC 10116:1991, item title is Information technology — Modes of operation for an n-bit block cipher algorithm; status code is 9599; successor is ISO/IEC 10116:1997; withdrawn / published date is 1991-09-05, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 10116:1991 _(verified: appears in the quote below)_
- **Item title:** Information technology — Modes of operation for an n-bit block cipher algorithm _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 10116:1997
- **Withdrawn / published date:** 1991-09-05 _(verified: appears in the quote below)_

## What the source says

> 18102,IS,,ISO/IEC 10116:1991,Information technology — Modes of operation for an n-bit block cipher algorithm,Technologies de l'information — Modes opératoires d'un algorithme de chiffrement par blocs de n-bits,1991-09-05,1,['35.030'],ISO/IEC JTC 1/SC 27,9599,,[27727],"['en','fr']",11,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).