OK, so x.1252 (not 1254 which is entity authentication assurance) does not specifically define ‘Identity attribute’.

But I think the term can be derived from the following definitions.

Arguably, the ‘NOTE’ is not helpful given some of the AM DG discussion.

But overall, I think it is fair to say that the ITU-T definitions represent a reasonable compromise on the range of opinions expressed.

Cheers

Colin

 

6.30 identity: A representation of an entity in the form of one or more attributes that allow the

entity or entities to be sufficiently distinguished within context. For identity management (IdM)

purposes, the term identity is understood as contextual identity (subset of attributes), i.e., the variety

of attributes is limited by a framework with defined boundary conditions (the context) in which the

entity exists and interacts.

NOTE – Each entity is represented by one holistic identity that comprises all possible information elements

characterizing such entity (the attributes). However, this holistic identity is a theoretical issue and eludes any

description and practical usage because the number of all possible attributes is indefinite.

 

6.9 attribute: Information bound to an entity that specifies a characteristic of the entity.