SHARING USER ID BETWEEN OPERATING SYSTEM AND APPLICATION

摘要

One or more techniques and/or systems are disclosed for authenticating a user of an application using an operating system. A user can log onto their device, such as at power-up, using a cloud-based ID registered to an online identity service. The user can be authenticated with the operating system on the user's device, using the cloud-based identity for the user, where the operating system may contact the online identity service to authenticate the user. When the user activates an application on the device it may request authentication of the user from the operating system, and an authentication token for the user's cloud-based identity is provided to the application. The application then uses the authentication token to authenticate the user for the application, as long as the application supports the use of the cloud-based ID of the user. In this manner, a subsequent manual user log-in operation is not required.