Enter single sign-on system properties After enabling a digest installation exist script, configure properties for single sign-on. If you are configuring digest token for multi-provider SSO, skip this step and enter the digest properties for multi-provider single sign-on. Before you beginRole required: admin About this task Set these properties to enable single sign-on with an unencrypted HTTP header. Procedure Navigate to System Properties > Single Sign-on. For Enable external authentication, select Yes. For HTTP header name to look for an externally authorized user (e.g. for SiteMinder), enter the HTTP header you generated. For example, SM_USER. For HTTP header name to look for an externally authorized user (e.g. for Digest Encryption), enter the HTTP header you generated. For example, DE_USER. For Service-now.com field name to match against the incoming header, enter the sys_user field that contains matching data. For example, user_name. For Secret passphrase for single sign-on (SSO) encryption/decryption, enter the secret key (password) to use for encoding digest keys. For example, SecretKey123. Click Save.