RPs can use a subscriberâs authenticated identity and attributes with other factors to make authorization decisions. A session begins with an authentication event and ends with a session termination event. This section details how to apply the results of the risk assessment with additional factors unrelated to risk to determine the most advantageous xAL selection.Per NISTIR 8062: Enabling the processing of PII or events without association to individuals or devices beyond the operational requirements of the system.Credentials that are bound to a subscriber in a manner than can be modified without invalidating the credential.Upon completion of the authentication process, the verifier generates an assertion containing the result of the authentication and provides it to the RP.
This list does not take into consideration any economic benefits or weaknesses of federation vs. localized identity architectures.The strength of identity proofing is described by an ordinal measurement called the IAL.
Further, federation is a keystone in the ability to enhance the privacy of the federal governmentâs constituents as they access valuable government digital services.A meaningless but unique number that does not allow the RP to infer anything regarding the subscriber but which does permit the RP to associate multiple interactions with the subscriberâs claimed identity.Not all digital services require authentication or identity proofing; however, this guidance applies to all such transactions for which digital identity or authentication are required, regardless of the constituency (e.g. Using a nonce as a challenge is a different requirement than a random challenge, because a nonce is not necessarily unpredictable.The use of a pseudonym to identify a subject.In regards to KBV, a multiple-choice question for which all answers provided are incorrect, requiring the applicant to select an option similar to ânone of the above.âAn applicantâs declaration of unvalidated and unverified personal attributes.These guidelines provide technical requirements for federal agenciesimplementing digital identity services and are not intended to constrainthe development or use of standards outside of this purpose. Some of the classic authentication factors do not apply directly to digital authentication. A government digital system may have multiple categories or types of transactions, which may require separate analysis within the overall digital identity risk assessment.The following sections discuss the components of a federated identity architecture should an agency elect this type of model.The strength of the authentication process is described by an ordinal measurement called the AAL. The ability to generate valid authenticator outputs on demand proves that the claimant possesses and controls the authenticator. Much has changed in Special Publication 800-63 since revision 2, and we realize not everyone had a chance to review the document over the summer (you can find a full rundown of changes HERE).