Amendment 1 - Information technology - Security techniques - Encryption algorithms - Part 3: Block ciphers - SM4

CSA Group
Standards Development Organisation:
Canadian Standards Association (operating as CSA Group)
Working Program:
View the CSA work program
Designation Number:
ISO/IEC 18033-3:2010/AMD1:2021
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
Amendment Revision
ICS code(s):
35.030
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

Scope: CAN/CSA-ISO/IEC 18033-3:12 (R2016)

This part of ISO/IEC 18033 specifies block ciphers. A block cipher maps blocks of n bits to blocks of n bits, under the control of a key of k kits. A total of seven different block ciphers are defined. They are categorized in Table 1.

The algorithms specified in this part of ISO/IEC 18033 have been assigned object identifiers in accordance with ISO/IEC 9834. The list of assigned object identifiers is given in Annex B. Any changes to the specification of the algorithms resulting in a change of functional behavior will result in a change of the object identified assigned to the algorithm.

Project need:

To align Canadian requirements with those of international standards in the ICT subject area (adoption of new standard. This proposed New Standard is being developed at the request of P123 Technical Committee on Information Technology. It will provide the industry with the latest requirements in the field of ICT, including cybersecurity and software. This will meet the strategic needs of the following key interests: a) ensuring that the latest innovative/technology/safety features are available for users.

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