Nvidia Corporation

Other

Jay Huang

Timothy Paul Lottes

Fedor Fomichev

Andrew Leighton Edelsten

Steven E Molnar

James Leroy Deming

Anthony Michael Tamasi

Paul Chou

Jay Gupta

Bojan Skaljak

Ashutosh Gajanan Rege

Keith Brian Galocy

Anthony Woo

Parthasarathy Sriram

Michael Wasserman

Franciscus W Sijstermans

Karan Gupta

Brahmanandam Karuturi

Gilberto Contreras

A computer system comprising a processor and a memory for storing instructions, that when executed by the processor performs a copy protection method. The copy protection method comprises executing a software loop of a first software application in a first operating system. A first call is executed in the software loop to a code portion. A decrypted code portion of the first software application is executed in a second operating system in response to the first call. The code portion is decrypted in response to a successful validation of the first software application.

Content protection via online servers and code execution in a secure operating system

One embodiment of the present invention includes a boot read only memory (ROM) with an embedded, private key provision key (KPK) set that enables secure provisioning of chips. As part of taping-out a chip, the chip provider establishes the KPK set and provides the boot ROM exclusive access to the KPK. For each Original Equipment Manufacturer (OEM), the chip provider assigns and discloses an OEM-specific KPK that is included in the KPK set at a particular KPK index. Upon receiving a secured provisioning image and the associated KPK index, the boot ROM accesses the KPK set to reconstruct the KPK and then decrypts and executes the secured provisioning image. Advantageously, this enables the manufacturing factory to provision the chip without the security risks attributable to conventional provisioning approaches that require disclosing security keys to the manufacturing factory.

Secure provisioning of semiconductor chips in untrusted manufacturing factories

Embodiments of the claimed subject matter provide systems and methods for protecting data in dynamically allocated regions of memory. The method can include receiving the read request where the read request comprises a virtual address associated with a memory and determining a physical address associated with the virtual address. The further includes determining whether the physical address associated with the virtual address is read protected and determining whether the read request is from a component allowed to access read protected memory. The read protected memory was dynamically allocated on a per page basis. The method further includes in response to determining that the read request is to a read protected physical address and determining that the component is allowed to access read protected memory, sending the data from the physical address in the memory.

System and method of protecting data in dynamically-allocated regions of memory

Clip-type cable management apparatus and methods are disclosed. In one embodiment, a first jaw and a second jaw having interleaved tines in a predetermined configuration are coupled by a hinge pin around which a torsion spring is disposed to urge said first jaw and said second jaw pivotally toward a close position so as to securely retain a cable being folded or coiled into a bundle of cable segments. Such cable management is further enhanced with additional features, optimized structures, and operating methods.

Cable management apparatus and method

Apparatus and systems are disclosed to enhance the user interface of a touch screen device. In one embodiment, a button () is disposed over a touch activation area () of a touch screen device () by a retainer () hingedly connected to a hinge bracket () affixed to the device housing by a double-sided tape (). The button relays a user's touch action to the touch sensitive screen and provides the user with tactile cues and feedback. Systemic optimizations are also provided to streamline the operation of the touch screen device adopting such an apparatus.

Apparatus and systems for enhanced touch screen operation

Organizing clip

A system, method, and computer program product are provided for implementing asymmetric AES-CBC (Advanced Encryption Standard-Cipher Block Chaining) channels usage between encryption and decryption of data. In operation, data to be written to memory is identified. In addition, the data is encrypted utilizing a first AES-CBC channel. Additionally, at least one of a plurality of AES-CBC channels is utilized to decrypt the data to achieve a determined performance target.

System, method, and computer program product for optimizing data encryption and decryption by implementing asymmetric AES-CBC channels

A system and method are provided for protecting data. In operation, a request to read data from memory is received. Additionally, it is determined whether the data is stored in a predetermined portion of the memory. If it is determined that the data is stored in the predetermined portion of the memory, the data and a protect signal are returned for use in protecting the data. In certain embodiments of the invention, data stored in the predetermined portion of the memory may be further processed and written hack to the predetermined portion of the memory. In other embodiments of the invention, such processing may involve unprotected data stored outside the predetermined portion of the memory.

System and method for protecting data by returning a protect signal with the data

Methods for code protection are disclosed. A method includes using a security processing component to access an encrypted portion of an application program that is encrypted by an on-line server, after a license for use of the application program is authenticated by the on-line server. The security processing component is used to decrypt the encrypted portion of the application program using an encryption key that is stored in the security processing component. The decrypted portion of the application program is executed based on stored state data. Results are provided to the application program that is executing on a second processing component.

Code protection using online authentication and encrypted code execution

Clip-type cable management devices are disclosed. In one embodiment, a first primary jaw () and a second primary jaw () having interleaved tines are coupled by a hinge pin () around which a primary torsion spring () is disposed to urge the primary jaws pivotally close. A secondary jaw () is disposed on the hinge pin and urged by a secondary torsion spring () pivotally toward the second primary jaw. A lever pin () is disposable in either a storage position or a working position on the first primary jaw so as to differentiate the pivotal opening of the secondary jaw, which is operable through the primary jaws. Resulting device is compact, quick and easy to operate, and packed with an array of functionalities applicable to cables of various sizes.

Growing community of inventors

Sunnyvale, CA, United States of America

Jay Huang