ENABLING USERS TO SELECT BETWEEN SECURE SERVICE PROVIDERS USING KEY ESCROW SERVICE

摘要

PROBLEM TO BE SOLVED: To provide a system for enabling a user to select from available secure service providers (having a TSM) for provisioning applications and services on a secure element installed on a user device.SOLUTION: The device includes a service provider selector (SPS) that provides a user interface for selecting a secure service provider. The SPS communicates with a key escrow service that maintains cryptographic keys for the secure element and distributes the keys to the user selected secure service provider. The key escrow service also revokes the keys from deselected secure service providers. The SPS communicates with a central TSM that provisions applications and services on behalf of the user selected secure service provider. The central TSM serves as a proxy between the secure service provider and the secure element.