Abstract:
A client device for media playback includes a user-installable media client application which implements the client-side of a digital rights management (DRM) system. The client device employs secure boot and verifies the user-installed application. The application is hardened against reverse engineering, and it utilizes a special API provided by the client device to tie into the secure boot, bridging the gap between the secure boot and the client-side of the DRM system contained within the application.
Abstract:
A method of establishing a protected environment within a computing device including validating a kernel component loaded into a kernel of the computing device, establishing a security state for the kernel based on the validation, creating a secure process and loading a software component into the secure process, periodically checking the security state of the kernel, and notifying the secure process when the security state of the kernel has changed.
Abstract:
Executing a monitor on a platform, the monitor capable of providing exclusive, secure access to an audio I/O device of the platform, executing a first partition on the platform, providing an audio device model in the first partition by directly mapping the audio I/O device from the monitor to the first partition for applications executing in the first partition, and providing exclusive, secure access to the audio I/O device to a program performing an audio function in a secure mode in the first partition.
Abstract:
Systems and methods for software licensing enforcement using an ACPI BIOS. A digital license is provided that includes information about both the software and hardware on which it is to be run. The licensing process receives hardware and software information from the end user and binds the license to both. A main BIOS binary contains code and static motherboard specific data. Dynamic state values containing, e.g., machine-specific system management data, such as, a serial number may be stored subsequently on NVRAM or its equivalent. The main BIOS binary allows provides sufficient functionality to test the hardware. Once the software to be loaded on the system is known, a corresponding digital license containing both the software and hardware information is loaded to NVRAM.
Abstract:
A method for providing a media change notification on a computing system. The present method polls a media device of a computing system for a media change wherein the polling of the media device cannot be blocked by the computing system. When a media change is detected on the media device, a media change notification is generated. The media change notification is then output when the media change on the media device is detected. In so doing, the media change notification cannot be blocked by the computing system.
Abstract:
A limited-use browser and related security system control access to content stored on a server computer linked to a network. The security system secures the content on the server and only permits it to be downloaded to a client computer running the limited-user browser or a general purpose browser executing an add-in security module providing the same functions as the limited-use browser. The limited-use browser or module secures the downloaded content on the client computer and displays it in a "view-only" mode. While the secured content is being displayed, menu selections, key combination, or pointing device commands initiated on the client computer that would modify the content or create a copy on another medium are either disabled as a default or monitored to determine if the action is permitted.
Abstract:
Disclosed herein are representative embodiments of tools and techniques for facilitating decoding of protected media information using a secure operating system. According to one exemplary technique, encoded media information that is encrypted is received at a secure process of a secure operating system of a computing system. At least a portion of the encoded media information that is encrypted is decrypted in the secure process. The portion of the encoded media information includes header information. Additionally, the header information is sent from the secure operating system to a software decoder for control of decoding hardware. The software decoder is included in a process for an application. Also, the decoding hardware is securely provided access to the encoded media information for decoding of the encoded media information to produce decoded media information.
Abstract:
Plural modes of operation, each associated with a class attribute, may be established on a mobile device. The present application discloses a method of handling an application launch request, a computing device for carrying out the method and a computer readable medium for adapting a processor to carry out the method. The method includes receiving a launch request identifying an application that is to be launched, acquiring an identity for the application, acquiring a class for the application, labeling the application with the identity and the class and launching the application.
Abstract:
Die Erfindung betrifft ein Verfahren zum Aktivieren eines Betriebssystems (35) in einem Sicherheitsmodul (3), wobei das Sicherheitsmodul (3) entweder mittels eines ersten Betriebssystems (351) oder mittels eines zweiten Betriebssystems (352) betriebsfähig ist. Das Verfahren umfasst die Schritte: Betreiben des Sicherheitsmoduls (3) mittels des ersten Betriebssystems (351) und Umsetzen (6) des Sicherheitsmoduls (3) vom ersten Betriebssystem (351) auf das zweite Betriebssystem (352). Insbesondere greift eine in das Sicherheitsmodul (3) eingebrachte Primäranwendung (37) mittels einer Betriebs-Systemschnittstelle (36) auf das jeweilige Betriebssystem (35) zu. Der Erfindungsgedanke umfasst weiterhin ein Sicherheitsmodul sowie die Verwendung eines Sicherheitsmoduls in einem Endgerät.
Abstract:
A user device may strengthen the protection level of a digital content by dividing the security and normal modes and performing an operation. In order to further strengthen the protection level of the digital content, the user device may determine whether the main operating system is hacked or not, and blocks the operation in the secure mode. Otherwise, the device authorization information indicating the device security level of the user device is authorized by the content service server, and the user device blocks the operation in the secure mode according to the result.