Intel Corporation

Sequent Computer Systems, Inc.

Gary L Graunke

David A Lee

Robert W Faber

Priyadarsini Devanand

Carlos V Rozas

Brendan Traw

David W Aucsmith

Richard L Maliszewski

David M Durham

Gilbert A Neiger

Uday R Savagaonkar

Prashant Dewan

Francis X Mckeen

Vincent R Scarlata

John I Garney

Ernie F Brickell

Simon P Johnson

Howard C Herbert

Dion Rodgers

Michael A Goldsmith

Richard Paul Mangold

Stephen R Van Doren

Stalinselvaraj Jeyasingh

Carl M Ellison

Joseph Frank Cihula

Keith L Shippy

Stephen J Tolopka

Bernard Lint

Asher M Altman

Joseph M Nardone

Don Alan Van Dyke

Jody L Pfotenhauer

Jiang Tao Li

Michael S Ripley

Balaji Vembu

William A Stevens, Jr

Ernest F Brickell

Matthew D Wood

C Brendan Traw

John M Carbajal

Ernic F Brickell

Richard T Mangold

Leonard D Shapiro

Sujata Ramamoorthy

John Carbajal

A technique to enable secure application and data integrity within a computer system. In one embodiment, one or more secure enclaves are established in which an application and data may be stored and executed.

Method and apparatus to provide secure application execution

An embodiment of the invention includes a processing system to provide protected digital content, the processing system comprising a processor and control logic which, when used by the processor, results in the processing system performing operations comprising determining first and second receivers, which are coupled to the processing system, are within a predetermined acceptable proximity to the processing system. The processing system is upstream to the first receiver and the first receiver is upstream to the second receiver. Other embodiments are provided herein.

Methods and apparatus for protecting digital content

A source-level compiler may randomly select compilation conventions to implement portable content protection, securing the secrets embedded in a program by shuffling associated data. The program may be developed using a source language that is applicative on the associated data. To obscure the embedded secrets, in one embodiment, pre-compiler software may be deployed for compiling the program in a random-execution-order based on a random seed indication that randomly selects compilation conventions and a shuffling algorithm that moves the associated data across the program during execution.

Implementing portable content protection to secure secrets

A processing system to serve as a source device for protected digital content comprises a processor and control logic. When used by the processor, the control logic causes the processing system to receive a digital certificate from a presentation device. The processing system then uses public key infrastructure (PKI) to determine whether the presentation device has been authorized by a certificate authority (CA) to receive protected content. The processing system may also generate a session key and use the session key to encrypt data. The processing system may transmit the encrypted data to the presentation device only if the presentation device has been authorized by the CA to receive protected content. Presentation devices and repeaters may perform corresponding operations, thereby allowing content to be transmitted and presented in a protected manner. Other embodiments are described and claimed.

A method and apparatus for a high-bandwidth stream cipher. In one embodiment of the invention, the stream cipher has an output function that receives secret state bits from a block cipher and generates an encryption mask. In one embodiment of the invention, the encryption mask has a lesser or smaller number of bits than the secret state bits. The stream cipher uses the encryption mask to encrypt a video data stream to generate an encrypted video data stream.

Method and apparatus for a high bandwidth stream cipher

In some embodiments, a method and apparatus for distributing private keys to an entity with minimal secret, unique information are described. In one embodiment, the method includes the storage of a chip secret key within a manufactured chip. Once the chip secret key is stored or programmed within the chip, the chip is sent to a system original equipment manufacturer (OEM) in order to integrate the chip within a system or device. Subsequently, a private key is generated for the chip by a key distribution facility (KDF) according to a key request received from the system OEM. In one embodiment, the KDF is the chip manufacturer. Other embodiments are described and claimed.

Apparatus and method for distributing private keys to an entity with minimal secret, unique information

A processing system to serve as a source device for protected digital content comprises a processor and control logic. When used by the processor, the control logic causes the processing system to generate cipher data, based at least in part on (a) a session key and (b) at least one constant value obtained from a certificate authority. The processing system may use the cipher data to encrypt data, and the processing system may transmit the encrypted data to a receiving device via a wireless connection. Other embodiments are described and claimed.

Encrypting data in a cascaded block cipher system may be accomplished by applying a first encryption algorithm using a secret shared between first and second parties as a key to generate a secret inner key; applying a second encryption algorithm for a predetermined number of rounds using the secret inner key to generate a plurality of blocks of ciphertext data from a plurality of blocks of plaintext data; and repeating the applying the first encryption algorithm and the applying the second encryption algorithm steps.

Method and apparatus for increasing the speed of cryptographic processing

Growing community of inventors

Beaverton, OR, United States of America

Gary L Graunke