Attribute that can be used to distinguish a Digital Identity.
By definition identifier can be one or more than one attributes, if the identifier is one attribute then that attribute must be unique, and is thus a unique-identifier. When multiple attributes are used, they are referred to as identifying-attribute.
MC Approved The current definition was added to the glossary on 12/10 following consensus approval at the AHG Meeting on 2013-12-05.
- Many identifiers include a pointer to an Authentication servers, for example firstname.lastname@example.org.
- Other identifiers are just random numbers, like GUIDs.
- In all cases, if the identifier is known to an attacker, they can attempt to take ownership of that identifier, which is (unfortunately) known as Identity Theft.