RESOURCE PROTECTION ON UN-TRUSTED DEVICES

摘要

Authenticating a user to a first service to allow the user to access a resource provided by the first service. The resource is a protected resource requiring a general purpose credential (e.g. a user name and/or password) to access the resource. The method includes receiving at a second service, from the device, an ad-hoc credential. The ad-hoc credential is a credential that is particular to the device. The ad-hoc credential can be used to authenticate both the user and the device, but cannot be directly used to as authentication at the first service for the user to access the resource. The method further includes, at the second service, substituting the general purpose credential for the ad-hoc credential and forwarding the general purpose credential to the first service. As such the first service can provide the resource to the user at the device.