Amendment 1 - Information technology - Security techniques - Hash-functions - Part 1: General - Padding methods for sponge functions

CSA Group
Standards Development Organisation:
Canadian Standards Association (operating as CSA Group)
Working Program:
View the CSA work program
Designation Number:
ISO/IEC 10118-1:2016/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:

ISO/IEC 10118 (all parts) specifies hash-functions and is therefore applicable to the provision of authentication, integrity and non-repudiation services. Hash-functions map strings of bits of variable (but usually upper bounded) length to fixed-length strings of bits, using a specified algorithm. They can be used for 

  • reducing a message to a short imprint for input to a digital signature mechanism, and 
  • committing the user to a given string of bits without revealing this string. 


NOTE The hash-functions specified in ISO/IEC 10118 (all parts) do not involve the use of secret keys. However, these hash-functions may be used, in conjunction with secret keys, to build message authentication codes. Message Authentication Codes (MACs) provide data origin authentication as well as message integrity. Techniques for computing a MAC using a hash-function are specified in ISO/IEC 9797-2 [1]. 

This document contains definitions, symbols, abbreviations and requirements that are common to all the other parts of ISO/IEC 10118. The criteria used to select the algorithms specified in subsequent parts of ISO/IEC 10118 are defined in Annex B of this document.

Project need:

To align Canadian requirements with those of the respective international standards being proposed for adoption and to maintain alignment between Canadian information and communication technology standards and each respective international 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 standards available in the ICT field.

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