Abstract: 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.

Abstract: 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.

Abstract: Embodiments of an invention for repeatable application-specific encryption key derivation are disclosed. In one embodiment, a processor includes a root key, an encryption engine, and execution hardware. The encryption engine is to perform an encryption operation using the root key, wherein the root key is accessible only to the encryption engine. The execution hardware is to execute instructions to deterministically generate an application-specific encryption key using the encryption algorithm.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Encrypting data in as 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A processing system to serve as a source device for protected digital content comprises a processor and control logic. The processing system may generate and save a first master key, and may transmit that key to a first receiving device for use during a first session. During a second session, the processing system may obtain an identifier for a candidate receiving device. The processing system may use the identifier to determine whether the processing system contains a master key for the candidate receiving device. If the processing system such a master key, the processing system may send verification data concerning that key to the candidate receiving device, and may use that key to encrypt a session key for the second session. If not, a second master key may be generated and transmitted to the candidate receiving device for use during the second session. Other embodiments are described and claimed.