British Standards Institution

Sector: Governance & Resilience

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 (36)

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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 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 Categories: Public comment begins : 2025-06-09	Public comment
BS ISO/IEC 28033-1	ISO/IEC 28033-1 Information security. Fully homomorphic encryption. Part 1: General Categories: Public comment begins : 2025-09-17	Public comment
BS ISO/IEC 23264	Information Technology -- Security Techniques -- Redaction of Authentic Data Categories: Unclassified documents Proposal begins :	Proposal
BS ISO/IEC 20009-3	Information technology -- Security techniques -- Anonymous entity authentication. Part 3: Mechanisms based on blind signatures concepts Categories: Unclassified documents Approval begins : 2019-03-21	Approval
BS ISO/IEC 19772:2009/Amd 1	BS ISO/IEC 19772:2009 Categories: Public comment begins : 2019-07-15	Public comment
BS ISO/IEC 18033-7:2022/Amd 1	Information security — Encryption algorithms. Part 7: Tweakable block ciphers - Amendment 1: Information security Categories: Unclassified documents Drafting begins : 2025-10-17	Drafting
BS ISO/IEC 18033-3:2010/AMD 1	Russian Block Cipher GOST Categories: Unclassified documents Drafting begins : 2017-05-02	Drafting
BS ISO/IEC 18033-3:2010/Amd 1	Kuznyechik. Part 3: Block ciphers - Amendment 1 Categories: Public comment begins : 2018-03-20	Public comment
BS ISO/IEC 18033-3	IT Security techniques -- Encryption algorithms. Part 3: Block ciphers Categories: Approval begins : 2020-01-07	Approval

Published (58)

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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 Categories: Published standard begins : 2010-02-02	Published standard
BS ISO/IEC 9798-3:2019	IT Security techniques. Entity authentication. Mechanisms using digital signature techniques Categories: 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 9798-1:2010	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 Categories: 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
BS ISO/IEC 4922-2:2024	Information security. Secure multiparty computation. Mechanisms based on secret sharing Categories: Published standard begins : 2024-03-14	Published standard

Withdrawn (65)

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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 9798-2:1999	Information technology. Security techniques. Entity authentication mechanisms. Mechanisms using symmetric encipherment algorithms Categories: Withdrawn begins : 2009-02-11	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

Message Committee Become a committee member

Committee members

Nominating organizations

Alan Turing Institute
Chris Mitchell Consulting
Committee Manager
Gamma Secure Systems Ltd
Huawei Technologies
Information Commissioner's Office
Intel Corp (UK) Ltd
Mastercard International
National Cyber Security Centre
National Physical Laboratory
Newcastle University
Platonic.Systems
Royal Holloway, University of London
Thales UK
Toshiba Europe Ltd
UK Finance
University of Birmingham
University of Essex
University of Oxford
University of Surrey
Vice Chair

Liaisons with other committees

Chair - IST/33
Chair - IST/33/3
Individual Capacity - Cryptography and encryption
Individual Capacity - Cybersecurity
Individual Capacity - Information Security Expert
Individual Capacity - IT Systems Assurance
Individual Capacity - Royal Bank of Scotland
Individual Capacity- RHUL Student

BSI roles

Committee Chair

Standards Development

IST/33/2 - Cryptography and Security Mechanisms

Committee standards activity