Intel Corporation

Microsoft Technology Licensing, LLC

David W Aucsmith

Gary L Graunke

Joseph M Nardone

George W Cox

Keith L Shippy

Paul E Onnen

Robert Conrad Knauerhase

Richard L Maliszewski

Jody L Pfotenhauer

Richard Paul Mangold

David Alfred Romrell

Robert R Sullivan

Robert R Sullivan, Jr

Mihai Costea

James C Stanley

Chandler Brendan Stanton Traw

Raymond J Werner

Rob Sullivan

Richard T Mangold

John M Acken

Chandler Brendan Traw

Techniques are disclosed for protecting privacy of parties to electronic transactions, such as transactions conducted through a GSM network. An anonymity service provider receives orders directed from its subscriber to a recipient for goods or services, along with information about its subscriber. The anonymity service provider relays the order to the recipient but withholds information about the subscriber, as the subscriber directs. The recipient receives payment for the good or service by way of a voucher from the anonymity service provider.

Anonymous electronic transactions

The present invention provides a system and method of tracing the spread of computer malware in a communication network. One aspect of the present invention is a method that traces the spread of computer malware in a communication network. When suspicious data characteristic of malware is identified in a computing device connected to the communication network, the method causes data that describes the state of the computing device to be stored in a database. After a specific attack against the communication network is confirmed, computing devices that are infected with the malware are identified. Then, the spread of the malware between computing devices in the communication network is traced back to a source.

System and method of identifying the source of an attack on a computer network

The present invention is a method and apparatus to segment a three-dimensional scene having foreground and background regions. Regions in stereo images of the 3-D scene are matched. The stereo images include left and right images. Ranges of matched regions are computed. The foreground region is separated from the background region using the computed ranges of the matched regions.

Segmenting three-dimensional video images using stereo

Content protection for digital transmission systems

An integrated circuit includes: a digital signature module coupled in the integrated circuit so as to receive a time of day signal string from a clock module and digitally sign the signal string.

Method and apparatus for providing certified time

Briefly, in accordance with one embodiment of the invention, a method of using a digital signature includes: electronically referencing at least one plurality of electronic signals with a digital signature remotely stored from the plurality.

Object-based digital signatures

A method and apparatus for arbitrating access to a shared memory is disclosed. A memory marking unit in the shared memory is read to determine whether the shared memory is currently being accessed by another processor. If the shared memory is not being accessed by another processor, a processor seeking access is granted access. The processor changes the contents of the memory marking unit to lock out other processors from the shared memory. The last task performed on the shared memory space is identified and used to determine whether a task with high priority exists. If a task with high priority exists, the task is performed. If a task with high priority does not exist, the processor having access to the shared memory space accesses the shared memory space for its intended purpose. After the processor is finished accessing the shared memory space, it records the identity of the task performed and unlocks the shared memory space.

Protocol for arbitrating access to a shared memory area using historical state information

In one apparatus, a number of obfuscated programming instructions are equipped to self-verify whether execution of the obfuscated programming instructions is being observed. In another apparatus, a number of obfuscated programming instruction are equipped to determine whether the apparatus is being operated in a mode that supports single step execution of the obfuscated programming instructions. In yet another apparatus, a number of obfuscated programming instruction are equipped to verify whether an amount of elapsed execution time has exceeded a threshold. In yet another apparatus, a first and a second group of obfuscated programming instruction are provided to implement a first and a second tamper resistant technique respectively, with the first and the second group of programming instructions sharing a storage location for a first and a second key value corresponding to the first and the second tamper resistant technique.

Tamper resistant methods and apparatus

In one apparatus, a number of obfuscated programming instructions is provided to perform integrity verification on a number of other plain text programming instructions. In another apparatus, a number of obfuscated programming instructions is provided to self-verify an invocation of the obfuscated programming instructions is not originated from an intruder.

A method and apparatus of communicating information comprising providing a datum which includes a digital certificate containing data. The digital certificate including an extension which includes: a first identifier which specifies a major classification of the data; a second identifier which specifies a minor classification of the data; and data in a format according to the major classification and the minor classification, the data indicating an owner of the datum and a use for which the datum is intended. The certificate allows authentication of the certificate itself and the data contained therein, and the data contained in the certificate can include information allowing verification of the identity of the holder of the certificate.

Digital certificates containing multimedia data extensions

In one apparatus, a group of plain text and obfuscated cells of programming instructions is provided to implement a descrambler that descrambles scrambled content to generate descrambled content. In another apparatus, a group of plain text and obfuscated cells of programming instructions is provided to implement an authenticator that provides appropriate authentication challenges to a scrambled content provider, and generates appropriate authentication responses to authentication challenges from the scrambled content provider. In yet another apparatus, a group of plain text and obfuscated cells of programming instructions is provided to implement an integrity verifier that performs integrity verification on a decoder. In yet another apparatus, a group of plain text and obfuscated cells of programming instructions is provided to implement a secrets holder that holds a number of secrets associated with playing scrambled contents.

Tamper resistant player for scrambled contents

A method and apparatus for computer platform identification. According to the method, a first fingerprint is generated using a plurality of computer system traits. A second fingerprint is generated on an unidentified computer and then compared to the first fingerprint. This comparison results in a value representing a probability that the unidentified computer system is the same computer system which generated the first fingerprint. A system disclosed includes a processor which is coupled to memory by a bus. The memory contains a first routine which retrieves a plurality of system traits to form a first fingerprint. The memory also contains a second routine which retrieves the first fingerprint and compares the first fingerprint to a second fingerprint.

Growing community of inventors

Portland, OR, United States of America

David W Aucsmith