Setting Up Authentication for OpenID Connect with Google

•Creating a Neurons for ITSM Authentication Provider

Adding a Google Application

Configure Google App as an identity provider. Go to https://developers.google.com/identity/protocols/OpenIDConnect.

Obtaining OAuth 2.0 Credentials

You need OAuth 2.0 credentials, including a client ID and client secret, to authenticate users and gain access to Google's APIs.

To find your project's client ID and client secret, do the following:

1.Go to the Google Developers Console at https://console.developers.google.com/start.

2.Select an existing project or click Create project to create a new one.

3.In the Dashboard area, click Use Google APIs.

4.In the Overview area, select an API. If you do not need a specific API, select any of them, such as Google Drive and then click Enable to enable the API.

5.From the sidebar on the left, click Credentials.

6.In the Credentials panel, under Create credentials, click OAuth client ID.

7.Enter the requested information and then click Create. The application displays a dialog box with the client ID and client secret. Note that not all types of credentials use both a client ID and client secret. These are not listed in the table if they are not used.

Setting a Redirect URI

The redirect URI that you set in the Google Developers Console determines where Google sends responses to your authentication requests.

To find the redirect URI for your OAuth 2.0 credentials, do the following:

1.Go to the Google Developers Console at https://console.developers.google.com/start.

2.Select an existing project or click Create project to create a new one.

3.In the dashboard, click Use Google APIs.

4.In the sidebar on the left, click Credentials.

5.From the list of OAuth 2.0 client IDs, click the client ID you just created.

6.Under Authorized redirect URIs, enter the path in your application that users are redirected to after they have authenticated with Google.

7.Click Save.

Creating a Neurons for ITSM Authentication Provider

1.From the Configuration Console, click Configure > Security Controls > Authentication Providers to open the Authentication Providers workspace.

2.From the New Record Menu drop-down list, select New OpenID Connect.

3.Enter data into the fields.

Field	Description
Default	Specifies if this authentication provider is called. Automatically set by the application. You change this in the list. To make this authentication provider the default, you must first change the default setting for all other authentication providers to false and then change the default setting for this authentication provider to true.
Disabled	Specifies if this authentication provider is disabled.
Name	The name of the OpenID Connect provider.
Authentication URL	The URL that accepts the OpenID Connect request. The default value is https://accounts.google.com/o/oauth2/auth. Neurons for ITSM must be able to initiate an outbound HTTPS (port 443) connection to this URL.
Token Verification URL	The URL to use to verify and extract authentication information from the response of the authentication request. The default value for Google is https://www.googleapis.com/oauth2/v3/token. Neurons for ITSMmust be able to initiate an outbound HTTPS (port 443) connection to this URL.
Logout URL	If sign-out from Google is required when the user logs out from Neurons for ITSM, enter: https://www.google.com/accounts/Logout. After logging out from Neurons for ITSM, the OpenIDConnect endsession endpoint is called and clients in the same browser session are also signed out.
Session Renewal URL	The URL to request to renew the session. If this field is empty, the application uses the value of the Authentication URL field. Neurons for ITSM must be able to initiate an outbound HTTPS (port 443) connection to this URL.
Client ID	A value from the target Google application. See Obtaining OAuth 2.0 Credentials.
Client Secret	A value from the target Google application. See Obtaining OAuth 2.0 Credentials.
OIDC Hosted Domain	Optional authentication parameters for the specific Google application. Not used in this release of Neurons for ITSM.
OIDC Realm	Optional authentication parameters for the specific Google application. Not used in this release of Neurons for ITSM.
Certificate URL	The URL of the certificate used to verify the signature of the authentication response. The default value for Google is https://www.googleapis.com/oauth2/v3/certs. Neurons for ITSM must be able to initiate an outbound HTTPS (port 443) connection to this URL.
Certificate Issuer	The name of the certificate authority who issued the certificate. The default value for Google is accounts.google.com.
Expiration Date	The expiration date of the certificate. Not used in this release of Neurons for ITSM.
Auto Provisioning	Enables auto provisioning.
Profile Information URL	Gets additional information about users (such as email addresses) for auto provisioning. The default value is https://www.googleapis.com/plus/v1/people/me/openIdConnect. Do not change this value. It is submitted automatically when a new OpenID Connect record is created. Neurons for ITSM must be able to initiate an outbound HTTPS (port 443) connection to this URL.
Auto Provision Role	Role associated with the new user.
Auto Provision Status	Status of the new user.
Auto Provision Team	Team associated with the new user.
Auto Provision User Business Object	Type of user record to create. Can be either employee or external contact.

4.To verify the authentication, click Test Authentication.

5.Click Save.

Security Considerations

Neurons for ITSM application servers must be able to initiate outbound connections to the following endpoints:

•Authentication URL: https://accounts.google.com/o/oauth2/auth

•If a session renewal URL is specified: https://accounts.google.com/o/oauth2/auth

•Token verification URL: https://www.googleapis.com/oauth2/v3/token

•If auth response is required, certificate URL: https://www.googleapis.com/oauth2/v3/certs

•If auto provisioning is enabled, profile information URL: https://www.googleapis.com/oauth2/v3/userinfo