whether the CSP is an agency or private sector provider, the following requirements apply to an agency offering or using the authentication service: The agency shall consult with their Senior Agency Official for Privacy (saop) and conduct an analysis to determine whether the. A common application of look-up secrets is the use of "recovery keys" stored by the subscriber for use in the event another authenticator is lost or malfunctions. If available, the record should also contain information about the source of unsuccessful authentications attempted with the authenticator. The out-of-band authenticator can operate in one of the following ways: - The claimant transfers a secret received by the out-of-band device via the secondary channel to the verifier using the primary channel. Online dictionary attacks are used to guess memorized secrets.
See Section for more information on replacement of memorized secret authenticators. Therefore, no additional complexity requirements are imposed. Before adding the new authenticator, the CSP shall first require the subscriber to authenticate at the AAL (or a higher AAL) at which the new authenticator will be used. 5.1 Requirements by Authenticator Type.1.1 Memorized Secrets A Memorized Secret authenticator commonly referred to as a password or, if numeric, a PIN is a secret value intended to be chosen and memorized by the user. While all identifying information is self-asserted at IAL1, preservation of online material or an online reputation makes it undesirable to lose control of an account due to the loss of an authenticator. The CSP shall bind at least one, and should bind at least two, physical ( something you have ) authenticators to the subscribers online identity, in addition to a memorized secret or one or more biometrics. A session should inherit the AAL properties of the authentication event which triggered its creation. This section describes the actions to be taken in response to those events. The presence of an OAuth access token shall NOT be interpreted by the RP as presence of the subscriber, in the absence of other signals.
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