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BS ISO/IEC 10118-1:2016+A1:2021

BS ISO/IEC 10118-1:2016+A1:2021

$102.76

Information technology. Security techniques. Hash-functions – General

Published By Publication Date Number of Pages
BSI 2021 20
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Symbols and abbreviated terms
4.1 General symbols
9 4.2 Symbols specific to this document
4.3 Coding conventions
5 Requirements
6 General model for hash-functions
6.1 General
10 6.2 Hashing operation
6.2.1 General
6.2.2 Step 1 (padding)
6.2.3 Step 2 (splitting)
6.2.4 Step 3 (iteration)
6.2.5 Step 4 (output transformation)
11 6.3 Use of the general model
12 Annex A (normative) Padding methods
13 Annex B (normative) Criteria for submission of hash-functions for possible inclusion in ISO/IEC 10118 (all parts)
16 Annex C (informative) Security considerations
18 Bibliography

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BS ISO/IEC 10118-1:2016+A1:2021
$102.76