DETERMINING LEGITIMATE CONDITIONS AT A COMPUTING DEVICE

摘要

A method of determining legitimate use of a computing device for an action to be approved by a remote system is described. The following steps are carried out at the computing device. A verification method (44) is established for authenticating a user at the computing device or for verifying the integrity of the computing device in association with carrying out the action on that computing device. Cryptographic material is received from a trusted system for use in performing the action. The action is then performed (42). This may or may not comprise successful performance of the verification step. However, performing the action comprises returning information to the remote system that includes whether there was successful authentication using the verification method and parameters relating to computing device state when the action was performed. Suitable computing apparatus is also described.