| 摘要 |
User Authentication A mobile user authentication application is operable to perform one or more of the following operations: . authenticate a user in a voice call to a telephony service, by passing an authentication code to the telephony service within the voice call [Figures 2, 2c]; . validate a user instruction during a secure messaging session [Figure 3]; and . authenticate a user at a physical local service by obtaining a challenge code at that local service, validating the challenge code with a remote authentication service, obtain a confirmation code from the authentication service and presenting the confirmation code for validation at the local service [Figures 4, 4a and 4b]. |
