Giesecke & Devrient Gmbh

Trustonic Limited

Markus Kohler

Stephan Spitz

Ullrich Martini

Stephen Spitz

Microprocessor system that is implemented or can be implemented in a mobile terminal and comprises: a normal operating system designed to generate and maintain a non-secure runtime environment and a security operating system designed to generate and maintain a secured runtime environment, and an operating system interface between the normal operating system and the security operating system, said operating interface being designed to control communication between the non-secure runtime environment and the secured runtime environment on the operating system level, and at least one filter interface that is designed to securely control communication between the non-secure runtime environment and a secured runtime environment on a level different from the operating system level.

Microprocessor system with secured runtime environment

The invention relates to a mobile station comprising a terminal (ME) and a security element ((U)(SIM)) which can be operated, removed or securely implemented in the terminal (ME), a link being provided between the terminal (ME) and the security element ((U)(SIM)) and being verifiable by means of a secret key (PrK; KST) and by means of the verification key (Puk; KSA). The terminal (ME) comprises a secured runtime environment (TEE), and the verification key (PuK; KST) is stored in the secured runtime environment (TEE).

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Munich, Germany

Markus Kohler