Providers of digital services, such as car-sharing or mobile phone companies, airlines or transport companies, use their customers' smartphones to securely store application-specific data there.

So far, however, they have had to make compromises when it comes to security.

The OPTIMOS project – funded by the Federal Ministry for Economic Affairs and Energy (BMWi) – aims to change this. The OPTIMOS funding project aims to create a platform that relieves service providers of the time-consuming part and at the same time enables hardware-based security.

The service providers connect to a "Trusted Service Manager" (TSM) via an interface. The TSM gives the service provider exclusive access to a memory area in the respective hardware security element on the customer's smartphone.