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IST/33/2 - Cryptography and Security Mechanisms

Sector: Governance & Resilience

Categories: | | Information coding. Character sets | Computer graphics | Road construction materials | Information technology. General

Overview: Under the direction of IST/33, IST/33/2 is responsible for representing the United Kingdom in ISO/IEC JTC 1/SC 27/WG 2, which focuses on cryptographic techniques, including cryptographic key management and entity authentication protocols. IST/33/2 also provides the UK input to CEN/CLC JTC 13/WG 10, which reviews national and international standards for adoption as European standards in the field of cryptography, including post-quantum cryptography.

Committee standards activity

In Progress (34)
Reference Standards description
Status ?

The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS ISO/IEC 4922-3 Information security — Secure multiparty computation —. Part 3: Mechanisms based on garbled circuits

Categories:

Public comment begins : 2026-03-16 		Public comment
BS ISO/IEC 29192-8:2022/Amd 1 BS EN ISO/IEC 29192-8:2022/Amd 1 Information security — Lightweight cryptography — Part 8: Authenticated encryption - Amendment 1: Information security — Lightweight cryptography — Part 8: Authenticated encryption — Amendment 1

Categories:

Public comment begins : 2026-01-29 		Public comment
BS ISO/IEC 29192-4:2013/Amd 2 BS EN ISO/IEC 29192-4:2013/Amd 2 Information technology — Security techniques — Lightweight cryptography — Part 4: Mechanisms using asymmetric techniques - Amendment 2: Information technology — Security techniques — Lightweight cryptography — Part 4: Mechanisms using asymmetric tech

Categories:

Public comment begins : 2026-01-29 		Public comment
BS ISO/IEC 29192-2:2012/Amd 1 BS ISO/IEC 29192-2:2012. Part 2: Block ciphers - Amendment 1

Categories:

Drafting begins : 2017-11-23 		Drafting
BS ISO/IEC 28033-4 Information Security — Fully homomorphic encryption —. Part 4: Mechanisms for arithmetic based on look-up table evaluation

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Comment resolution begins : 2026-07-08 		Comment resolution
BS ISO/IEC 28033-3 Information security — Fully homomorphic encryption —. Part 3: Mechanisms for arithmetic on approximate numbers

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Comment resolution begins : 2026-09-11 		Comment resolution
BS ISO/IEC 28033-1 ISO/IEC 28033-1 Information security. Fully homomorphic encryption. Part 1: General

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Public comment begins : 2025-09-17 		Public comment
BS ISO/IEC 25330-1 BS EN ISO/IEC 25330-1 Information Security — Oblivious Transfer. Part 1: General

Categories:

Public comment begins : 2026-06-03 		Public comment
BS ISO/IEC 23264 Information Technology -- Security Techniques -- Redaction of Authentic Data

Categories: Unclassified documents

Proposal begins : 		Proposal
BS ISO/IEC 20009-4:2017/Amd 1 Information technology — Security techniques — Anonymous entity authentication. Part 4: Mechanisms based on weak secrets

Categories:

Comment resolution begins : 2026-09-21 		Comment resolution
Published (59)
Reference Standards description
Status ?

The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS ISO/IEC 9798-6:2010 Information technology. Security techniques. Entity authentication. Mechanisms using manual data transfer

Categories:

Published standard begins : 2010-12-10 		Published standard
BS ISO/IEC 9798-5:2009 Information technology. Security techniques. Entity authentication. Mechanisms using zero knowledge techniques

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Published standard begins : 2010-02-02 		Published standard
BS ISO/IEC 9798-3:2019 IT Security techniques. Entity authentication. Mechanisms using digital signature techniques

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Published standard begins : 2019-02-04 		Published standard
BS ISO/IEC 9798-2:2019 IT Security techniques. Entity authentication. Mechanisms using authenticated encryption

Categories:

Published standard begins : 2019-06-10 		Published standard
BS ISO/IEC 9798-2:1999 Information technology. Security techniques. Entity authentication mechanisms. Mechanisms using symmetric encipherment algorithms

Categories: | Information coding. Character sets

Published standard begins : 2000-01-06 		Published standard
BS ISO/IEC 9798-1:2010 Information technology. Security techniques. Entity authentication. General

Categories:

Published standard begins : 2010-08-03 		Published standard
BS ISO/IEC 9797-3:2011+A1:2020 Information technology. Security techniques. Message Authentication Codes (MACs). Mechanisms using a universal hash-function

Categories:

Published standard begins : 2020-02-19 		Published standard
BS ISO/IEC 9797-1:2011+A1:2023 Information technology. Security techniques. Message Authentication Codes (MACs). Mechanisms using a block cipher

Categories:

Published standard begins : 2023-08-31 		Published standard
BS ISO/IEC 9796-2:2010 Information technology. Security techniques. Digital signature schemes giving message recovery. Integer factorization based mechanisms

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Published standard begins : 2011-01-21 		Published standard
BS ISO/IEC 7064:2003 Information technology. Security techniques. Check character systems

Categories:

Published standard begins : 2003-03-21 		Published standard
Withdrawn (66)
Reference Standards description
Status ?

The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS ISO/IEC 9798-6:2005 Information technology. Security techniques. Entity authentication. Mechanisms using manual data transfer

Categories: | Information coding. Character sets

Withdrawn begins : 2010-08-20 		Withdrawn
BS ISO/IEC 9798-5:1999 Information technology. Security techniques. Entity authentication mechanisms. Mechanisms using zero knowledge techniques

Categories:

Withdrawn begins : 2010-02-02 		Withdrawn
BS ISO/IEC 9798-4:1999 Information technology. Security techniques. Entity authentication. Mechanisms using a cryptographic check function

Categories: | Information coding. Character sets

Withdrawn begins : 2012-08-20 		Withdrawn
BS ISO/IEC 9798-3:1998+A1:2010 Information technology. Security techniques. Entity authentication. Mechanisms using digital signature techniques

Categories: | Information coding. Character sets

Withdrawn begins : 2012-05-01 		Withdrawn
BS ISO/IEC 9798-2:2008 Information technology. Security techniques. Entity authentication. Mechanisms using symmetric encipherment algorithms

Categories: | Information coding. Character sets

Withdrawn begins : 2010-04-16 		Withdrawn
BS ISO/IEC 9797-3:2011 Information technology. Security techniques. Message Authentication Codes (MACs). Mechanisms using a universal hash-function

Categories:

Withdrawn begins : 2020-02-19 		Withdrawn
BS ISO/IEC 9797-2:2021 Information security. Message authentication codes (MACs). Mechanisms using a dedicated hash-function

Categories:

Withdrawn begins : 2024-12-06 		Withdrawn
BS ISO/IEC 9797-2:2011 Information technology. Security techniques. Message authentication codes (MACs). Mechanisms using a dedicated hashfunction

Categories: | Information coding. Character sets

Withdrawn begins : 2015-09-07 		Withdrawn
BS ISO/IEC 9797-2:2002 Information technology. Security techniques. Message authentication codes (MACs). Mechanisms using a dedicated hash-function

Categories:

Withdrawn begins : 2011-05-18 		Withdrawn
BS ISO/IEC 9797-1:2011 Information technology. Security techniques. Message authentication codes (MACs). Mechanisms using a block cipher

Categories:

Withdrawn begins : 2023-08-31 		Withdrawn