Patent ID: 8533797

Claim:
A computer-readable device containing instructions for authenticating a user of an application executing at a front-end computer by operations comprising: prompting, by the application, the user to enter credentials at the front-end computer, the credentials for accessing a user account established with an operating system executing at a logon computer remotely located from the front-end computer, wherein the user account has rights to access a resource managed by an operating system at the logon computer; receiving, by the application, credentials from the user; sending, by the application, a request for a token, the request including the received credentials; receiving, by the application and from the logon computer, the token without an indication of whether the token is valid; storing, by the application, the token at the front-end computer; sending, by the application, a request to access the resource using the token; receiving, by the application, an indication of whether the resource was successfully accessed using the token; and responsive to determining that the resource was successfully accessed using the token, indicating, by the application, that the user is authenticated by the application.