Certified: June 18, 2025   

Solution Summary

This guide describes  Microsoft 365 integration with RSA (or ID Plus) using SAML 2.0 and WS-Federation. Use this information to determine which use case and integration type your deployment will employ. 

Use Case

Integration Types 

My Page SSO provides Single-Sign-On (SSO) to Microsoft O365 users leveraging RSA self-service portal My Page. When integrated, users must authenticate with RSA to sign in Microsoft O365 both SP-initiated SSO and IdP-initiated SSO are supported. Modern Cloud-hosted SSO with My Page replaces the existing SAML SSO support with the IDR. Existing SSO integrations using IDR My Applications continue to be supported and will be listed in this document as applicable.

Note: RSA will continue to maintain existing SAML SSO integrations using IDR My Applications. At a to-be-determined future date, RSA will announce the end-of-life (EOL) date for the SAML SSO support with the IDR. For more information Available Now: My Page SSO Enhancements.

Relying Party integration allows Microsoft O365 users’ web browsers to be automatically redirected to CAS for authentication. With Relying Party integration, CAS can manage only additional authentication or both primary authentication (for example, user ID and password) and additional authentication.

Supported Features 

This section shows all the supported features by integration type and by RSA components. Use this information to determine which integration type and RSA component your deployment will use. The next section in this guide contains the instruction steps for how to integrate RSA with Microsoft Office 365 using each integration type.
 

Microsoft Office 365 Integration with CAS

Authentication Methods	RSA MFA API (REST)	RADIUS	Relying Party	SSO
Approve	-	-
LDAP Password	-	-
SecurID OTP	-	-
Authenticate OTP	-	-
Device Biometrics	-	-
SMS OTP	-	-
Voice OTP	-	-
FIDO Security Key	-	-
QR Code	-	-
Emergency Access Code	-	-

Microsoft Office 365 Integration with RSA Authentication Manager (AM)

	Supported
-	Not supported
n/t	Not yet tested or documented, but may be possible
n/a	Not applicable

Configuration Summary

This section contains instruction steps that show how to integrate Microsoft Office 365 with RSA using all of the integration types.
This document is not intended to suggest optimum installations or configurations. It is assumed that the reader has both working knowledge of all products involved, and the ability to perform the tasks outlined in this section. Administrators should have access to the product documentation for all products to install the required components.
All RSA and Microsoft Office 365 components must be installed and working prior to the integration.
This section of the guide includes links to the appropriate sections for configuring both sides for each use case.
 

Integration Configuration

CAS

• Microsoft Office 365 - SAML My Page SSO Configuration - RSA Ready Implementation Guide
• Microsoft Office 365 - SAML Relying Party Configuration - RSA Ready Implementation Guide
• Microsoft Office 365 - SAML IDR SSO Configuration - RSA Ready Implementation Guide
• Microsoft Office 365 - WS Federation SSO Configuration - RSA Ready Implementation Guide

RSA Terminology Changes

RSA is introducing new consistent terminologies across all products and platforms. Refer to the following table for the list of old and new terminologies. 

Certification Details

RSA
Microsoft Office 365
 

Known Issues

No known issues