LiveID authentication settings are located in Site Manager -> Settings -> Windows LiveID. Before you start making the settings, make sure you have the right site selected using the Site drop-down list in the top left part of the page.
|•||Enable Windows Live ID - indicates if Windows Live ID authentication should be enabled.|
|•||Application ID - identifier of your website. Enter the Client ID that you received when registering your website.|
|•||Application secret - secret code that will be used for encryption of messages transferred between your website and the LiveID server. Enter the Secret key that you received when registering your website.|
|•||Security algorithm - algorithm used for the encryption of messages transferred between your website and the LiveID server. It is recommended to use wsignin1.0.|
|•||Assign new users to roles - new users registered via LiveID login will be assigned to the roles specified here.|
|•||Required user data page - URL of a page containing the Required LiveID user data web part. If entered, then when a new LiveID user logs in to the site, their user account is not created automatically, but they are redirected to this page and required to enter some additional data (or merge with an existing account) using the web part.|