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Securing
This section describes security features, including execution control lists, IDs, and TLS.
Web-based authentication
Define and set up authentication methods for web users, for example through basic password authentication, passkeys, time-based one-time password, or single sign-on.
Using OpenID Connect (OIDC) to configure federated-identity authentication
Federated identity is a means of achieving single sign-on, providing user convenience and helping reduce administrative cost. One way that client applications can authenticate users is by using an OpenID Connect (OIDC) provider.
Enabling federated login with OIDC
Enable federated login with OIDC to allow supported clients users to perform secure mail operations such as signing and decrypting messages without being prompted for a Notes ID password.
Configuring the OIDC provider for Web federated login with OIDC
Add the Web federated login with OIDC references to your OIDC provider's existing configuration for Web login with OIDC.

Securing
This section describes security features, including execution control lists, IDs, and TLS.
- Overview of Domino security
  Setting up security for your organization is a critical task. Your security infrastructure is critical for protecting your organization's IT resources and assets. As an administrator, you need to give careful consideration to your organization's security requirements before you set up any servers or users. Up-front planning pays off later in minimizing the risks of compromised security.
- Server access for Notes® users, Internet users, and Domino® servers
  To control user and server access to other servers, Domino® uses the settings you specify on the Security tab in the Server document as well as the rules of validation and authentication. If a server validates and authenticates the Notes® user, Internet user, or server, and the settings in the Server document allow access, the user or server is allowed access to the server.
- The database access control list
  Every .NSF database has an access control list (ACL) that specifies the level of access that users and servers have to that database. Although the names of access levels are the same for users and servers, those assigned to users determine the tasks that they can perform in a database, while those assigned to servers determine what information within the database the servers can replicate. Only someone with Manager access can create or modify the ACL.
- Domino® server and Notes® user IDs
  Domino® uses ID files to identify users and to control access to servers. Every Domino server, Notes® certifier, and Notes user must have an ID.
- The execution control list
  You use an execution control list (ECL) to configure workstation data security. An ECL protects user workstations against active content from unknown or suspect sources, and can be configured to limit the action of any active content that does run on workstations.
- Domino® server-based certification authority
  You can set up a Domino® certifier that uses the CA process server task to manage and process certificate requests. The CA process runs as a process on Domino servers that are used to issue certificates. When you set up a Notes® or Internet certifier, you link it to the CA process on the server in order to take advantage of CA process activities. Only one instance of the CA process can run on a server; however, the process can be linked to multiple certifiers.
- TLS security
  Transport Layer Security (TLS) is a security protocol that provides communications privacy and authentication for Domino® server tasks that operate over TCP/IP.
- TLS and S/MIME for clients
  Clients can use a Domino® certificate authority (CA) application or a third-party CA to obtain certificates for secure TLS and S/MIME communication.
- Encryption
  Encryption protects data from unauthorized access.
- Web-based authentication
  Define and set up authentication methods for web users, for example through basic password authentication, passkeys, time-based one-time password, or single sign-on.
  - Name-and-password authentication for Internet/intranet clients
    Name-and-password authentication, also known as basic password authentication, uses a basic challenge/response protocol to ask users for their names and passwords and then verifies the accuracy of the passwords by checking them against a secure hash of the password stored in Person documents in the Domino® Directory.
  - Passkey authentication
    Learn how to enable passkey authentication on a Domino server or internet site for improved security.
  - Time-based one-time password (TOTP) authentication
    When users log on to a Domino Web server, you can require that they provide time-based one-time passwords in addition to their user names and passwords.
  - Multi-server session-based authentication (single sign-on)
    Multi-server session-based authentication, also known as single sign-on (SSO), allows Web users to log in once to a Domino® or WebSphere® server, and then access any other Domino or WebSphere servers in the same DNS domain that are enabled for single sign-on (SSO) without having to log in again.
  - Using Security Assertion Markup Language (SAML) to configure federated-identity authentication
    Federated identity is a means of achieving single sign-on, providing user convenience and helping to reduce administrative cost. In Domino® and Notes®, federated identity for user authentication uses the Security Assertion Markup Language (SAML) standard from OASIS.
  - Using OpenID Connect (OIDC) to configure federated-identity authentication
    Federated identity is a means of achieving single sign-on, providing user convenience and helping reduce administrative cost. One way that client applications can authenticate users is by using an OpenID Connect (OIDC) provider.
    - Preparing for OIDC authentication
      The tasks in this section are prerequisites to using both HTTP Bearer authentication using an OIDC provider and configuring SSO for web clients using an OIDC provider.
    - Configuring HTTP Bearer authentication using an OIDC provider
      Client applications such as native apps, mobile apps, Progressive Web Apps (PWAs), and Single Page Apps (SPAs) can use HTTP bearer authentication with signed JWT access tokens acquired from an OIDC provider to authenticate to Domino servers.
    - Configuring Web login with OIDC for web users
      Web browser clients can access the Domino Web server by authenticating with OIDC.
    - Enabling federated login with OIDC
      Enable federated login with OIDC to allow supported clients users to perform secure mail operations such as signing and decrypting messages without being prompted for a Notes ID password.
      - Configuring the ID vault for federated login with OIDC
        The ID vault administrator must approve the use of an OIDC provider (OP) that will provide OIDC credentials. The ID vault administrator decides which OP is trustworthy. Only credentials from a trusted OP can be used for downloading an ID file stored in this ID vault. The administrator supplies host names for OIDC partnerships to the ID vault in a vault document. The vault server uses the host names to look up information about trusted OPs from the IdP Catalog application (idpcat.nsf).
      - Configuring the Domino HTTP server for Web federated login with OIDC
        Add the Web federated login with OIDC references to an existing configuration for Web login with OIDC.
      - Configuring the OIDC provider for Web federated login with OIDC
        Add the Web federated login with OIDC references to your OIDC provider's existing configuration for Web login with OIDC.
      - Configuring users for federated login with OIDC
        Web federated login with OIDC uses Bearer token (JWT) authentication to access the Notes ID vault. Enable Bearer token (JWT) authentication to the Notes ID vault in a Security Policy Settings document and apply that policy to the desired users.
      - Enabling federated login with OIDC for Notes
        Enable Notes federated login with OIDC to allow Notes clients users to start Notes and perform secure operations without being prompted for a Notes ID password.
- Using Domino as an OIDC provider
  The Domino HTTP task can act as an OIDC identity provider. This feature allows administrators to leverage their existing Domino HTTP authentication experience -- including passkeys, TOTP, custom domcfg login forms, and external identity providers -- to authenticate end users with applications, servers, and services that support OIDC.
- Using a credential store to store credentials
  A Domino® server can use a credential store application as a secure artifact repository. Examples of secure artifacts include authentication credentials and security keys.
- History of supported key sizes in Notes and Domino
  Understand the RSA key sizes supported by Notes® and Domino® from past releases to the current release.

Configuring the OIDC provider for Web federated login with OIDC

Add the Web federated login with OIDC references to your OIDC provider's existing configuration for Web login with OIDC.

Procedure

Open your OIDC provider's configuration page for the previously configured partnership for Web login with OIDC.
Add the ID vault scope value from step 3 of Configuring the Domino HTTP server for Web federated login with OIDC to the list of allowed scopes for this partnership. Starting in 14.5.1, vault scopes that include spaces and slashes are supported. Any space characters in the vault scope should be replaced with the underscore ('_') character when configured in idpcat Trusted OIDC Provider and Registered OAuth Client documents. This enhancement only requires upgrading the ID vault server.
Add the ID vault scope value minus the leading "Domino.vault." as the default audience value for this partnership.

A Domino Vault name of "ParanoiaVault" hosted on a Domino server named "ultraviolet/Paranoia" would have a scope of "Domino.vault.Paranoia-O=ParanoiaVault" and an audience of "Paranoia-O=ParanoiaVault".

Note that when configuring the Domino OIDC provider for multiple audiences, this ID vault audience must be the first audience to make it the default audience.

These steps will vary based on provider - the following screenshot shows the example configuration with a 14.5 Domino OIDC provider. See Configuring Domino as an OIDC provider for more details.