distinguishes five different levels of assurance.

LoA

eIDAS

SAML2 AuthnContextClassRef element

1

Non existent

core:assurance-class:loa1

2

Low

core:assurance-class:loa2

2+

Low

core:assurance-class:loa2plus

3

Substantial

core:assurance-class:loa3

4

High

core:assurance-class:loa4

Other values MUST NOT be used.

Refer to Betrouwbaarheidsniveaus for legal context, and Normenkader betrouwbaarheidsniveaus for level of assurance in the context of the eIDAS regulation (EU 2015/1502).

For the Level of Assurance communicated in assertions in technical interfaces, the following rules apply: