ISO/IEC 24760-1:2019/Amd 1:2023

INTERNATIONAL ISO/IEC
STANDARD 24760-1
Second edition
2019-05
AMENDMENT 1
2023-01
IT Security and Privacy —
A framework for identity
management —
Part 1:
Terminology and concepts
AMENDMENT 1
Reference number
ISO/IEC 24760-1:2019/Amd. 1:2023(E)
© ISO/IEC 2023
ISO/IEC 24760-1:2019/Amd. 1:2023(E)
© ISO/IEC 2023
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ii
© ISO/IEC 2023 – All rights reserved

ISO/IEC 24760-1:2019/Amd. 1:2023(E)
Foreword
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This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 27, Information security, cybersecurity and privacy protection.
A list of all parts in the ISO/IEC 24760 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards
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© ISO/IEC 2023 – All rights reserved

ISO/IEC 24760-1:2019/Amd. 1:2023(E)
IT Security and Privacy — A framework for identity
management —
Part 1:
Terminology and concepts
AMENDMENT 1
3.1
Add the following two entries:
3.1.8
readily-verifiable identifier
identifier with a value which is constructed to be easily verified as valid and as referring to a known
entity
EXAMPLE The result of solving a cryptographic puzzle with its input can easily be validated as correct,
functioning as digital signature on that input.
Note 1 to entry: A readily verifiable identifier can be used as an authenticator.
3.1.9
authoritative identifier
unique identifier referring to an entity, known in a well-trusted domain of origin
Note 1 to entry: An authoritative identifier is typically managed by a well-known organization, e.g. a government.

3.2
Add the following term:
3.2.5
access token
trusted object encapsulating the authority for a principal to access a resource
Note 1 to entry: An access token can be obtained in the result of an authentication.
Note 2 to entry: An access token may contain access permission information for a subject to access the resource
and identifying information for the authority of the authorization decision.
Note 3 to entry: An access token may contain information that enables its integrity to be validated.
Note 4 to entry: An access token may take a physical or a virtual form.
[SOURCE: ISO/IEC 29146:2016, 3.3, modified —replaced the word 'subject' by 'principal', and replaced
Note 1 to entry.]
© ISO/IEC 2023 – All rights reserved

ISO/IEC 24760-1:2019/Amd. 1:2023(E)
3.3
Add the following entries:
3.3.9
authentication factor
distinguishing feature of an authenticator to characterise its use in authentication
Note 1 to entry: Four different authentication factors can be recognized:
— cognition factor, any credential that is formed by something that the principal knows and can reproduce
(exclusively): a personal secret;
— possession factor, any credential that is formed by something that the principal possesses, e.g. an authenticator;
— inherent factor, any credential that is formed by a description of something that is inherent to the physical
existence of the principal, e.g. a biometric characteristic such as fingerprint, facial image, or 1, iris pattern;
— behaviour factor, any credential that is formed by a description of something that the principal typically
does, e.g. a behaviour pattern.
3.3.10
multi-factor authentication
authentication in which multiple authenticators are used of two or more authentication factors
Note 1 to entry: If two or more authenticators are being used in authentication that have the same authentication
factor, they should have been issued by different credential issuers.
Note 2 to entry: Using multiple authenticators (that differ in authentication factor can enhance the security of the
authentication as that could prompt the principal to act differently with each of them.
[SOURCE: ISO/IEC 19790:2012, 3.74, modified — definition and notes revised to match terminology
context.]
3.3.11
authenticator
repr
...