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Congressional Research Service
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May  4, 2023


Login.gov: Administration and Identity Authentication


In recent years, Congress and the executive branch have
worked to digitize and streamline processes where members
of the public interact with the federal government. In 2015,
Congress required the General Services Administration
(GSA)  to develop and implement a single sign-on trusted
identity platform for individuals accessing public agency
websites (6 U.S.C. §1523(b)(1)(D)). As a result, GSA
partnered with the United States Digital Services, a
component  of the White House Office of Management and
Budget (OMB),  to create Login.gov.

In an August 22, 2017, announcement, GSA described
Login.gov as a single sign-on solution for government
websites that will enable citizens to access public services
across agencies with the same username and password.
Further, Login.gov aims to allow users to securely sign in
to participating government websites and securely verify
their identity. Login.gov provides shared authentication
and identity verification services for multiple federal
organizations and is subject to implementation guidance
from OMB   and the National Institute of Standards and
Technology  (NIST). At the end of FY2022, GSA reported
that Login.gov had 41 million active users.

However,  questions remain regarding the ability of
Login.gov to support shared services across agencies and
state and local governments, the security of Login.gov's
identity authentication, and oversight of GSA's
implementation of the program. The following provides an
overview of the management and funding mechanisms
behind Login.gov, information on OMB and NIST
requirements on conducting identity proofing and digital
authentication, and information on Login.gov's adoption by
federal and intergovernmental programs.

Management and Funding of Login.gov
GSA's  Technology Transformation Services (TTS), a
component  of the Federal Acquisition Service (FAS),
manages Login.gov. An overarching goal of FAS is to use
the federal government's purchasing power to decrease
duplication across agencies. TTS focuses on how agencies
procure, use, and share information technology. The
operations for TTS are funded via appropriations,
reimbursable work, the Acquisition Services Fund
(authorized by 40 U.S.C. §321), and agency contributions
to the Federal Citizen Services Fund (authorized by 40
U.S.C. §323).

Login  gov as a Shared  Service
Login.gov operates as a shared service, which is a business
function that is provided for consumption by multiple
organizations within or between federal agencies. GSA
states that the goal of shared services is to promote
standardization, reduce costs, and increase customer


satisfaction. OMB Memorandum   M-16-11, Improving
Administrative Functions Through Shared Services, created
a shared services governance model for executive branch
agencies and made GSA's Office of Unified Shared
Services Management  responsible for providing
implementation direction and guidance to shared service
providers.

In the case of Login.gov, GSA executed 22 interagency
agreements (IAAs) between 2018 and 2021, whereby GSA
provides authentication services and agencies reimburse
GSA  for the services rendered. IAAs provide the terms,
conditions, funding, and billing information under which
GSA  provides Login.gov services to other federal agencies.

Technology   Modernization   Fund  (TMF)
In addition to GSA funding and agency reimbursements,
Login.gov has also received over $187 million from the
Technology Modernization Fund  (TMF). The TMF  awards
federal agencies funds for IT modernization projects.
Agencies submit project proposals for the TMF board to
review and consider for funding. The board has used TMF
funding in the American Rescue Plan Act of 2021 (P.L.
117-2) to prioritize modernizing high priority systems,
cybersecurity, public-facing digital services, and cross-
government  collaboration services.

       IdenityProoingandDigital

For Login.gov, OMB  Memorandum   M-19-17, Enabling
Mission Delivery through Improved Identity, Credential,
and Access requires agencies to comply with NIST
guidance on identity proofing and digital authentication
protocols. Further, Memorandum M-19-17 directs agencies
to share proofing confirmations across agencies in order to
reduce public burden for having to resubmit identity data.
Guidance on these topics is contained in NIST Special
Publication SP 800-63-3, Digital Identity Guidelines. NIST
explains, Identity proofing establishes that a subject is who
they claim to be. Digital authentication establishes that a
subject attempting to access a digital service is in control of
one or more valid authenticators associated with that
subject's digital identity (NIST SP 800-63-3, p. iv).

NIST  guidance requires agencies to select the appropriate
levels of identity proofing and digital authentication based
on risks to the individual of unauthorized disclosure of their
information. GSA, in providing Login.gov, offers agencies
a product that conforms to certain NIST digital identity
components. These components  include an Identity
Assurance Level (IAL), referring to the identity proofing
process, and an Authenticator Assurance Level (AAL),
referring to the authentication process.

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