US 2014/0237621 A1Published application

Microprocessor system with secured runtime environment

AssigneeTrustonic Limited

InventorsStephen Spitz, Markus Kohler, Ullrich Martini

Life of this patent

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Abstract

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.

Claims10

Dependent claims

A microprocessor system, implementable or implemented in a mobile terminal and comprising:

a normal operation system (HLOS), which is designed for generating and maintaining an insecure runtime environment,
a security operating system (MobiCore), which is designed for generating and maintaining a secure runtime environment, and
an operating system interface (MobiCore driver) between the normal operating system (HLOS) and the security operating system (MobiCore), said operating system interface being designed to securely control communication between the insecure runtime environment and the secure runtime environment at the operating system level,
characterized by
at least one filter interface (virtual I2C driver;
TLC), which is designed to securely control communication between the insecure runtime environment and the secure runtime environment at a level different from the operating system level.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/346,811Filed 4 Oct 2012
Priority: DE 10 2011 115 135.87 Oct 2011
Published: 21 Aug 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 21/62
Protecting data: protecting access to data via a platform, e.g. using keys or access control rules
G06F 21/53
During program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow: by executing in a restricted environment, e.g.…
G06F 21/57
Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems: certifying or…
G06F 9/54
Multiprogramming arrangements: interprogram communication

Family

US 9,875,366 B2Related patent
US 2014/0237621 A1This patent

From the US filing history. Foreign family members aren’t listed.

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