LOCATION INFORMATION VERIFICATION

摘要

Location information is provided with an authenticator in order to enable future providing of an authentication to a service or application making use of the location information. The authenticator is based on a cryptographic method known by a provider and recipient of and also optionally based on position data provided by the location information. The authenticator is carried as a watermark in the location information so that the location information can be used by prior existing systems and enables the authentication of the location information in compatible authentication enabled systems. On receiving the location information, an authentication enabled recipient obtains the authenticator from the location information and checks using the authenticator whether use of the location information may be allowed.