On Tuesdays the USPTO issues new patents. Both of today's Spotlight Patents concern aspects of digital rights management. Assigned to Adobe Systems, the first patent addresses techniques for digital rights management using digital signatures. Assigned to Nvidia, the second patent addresses techniques for secure content enabled drive digital rights management.
8,359,473, "System and method for digital rights management using digital signatures," assigned to Adobe Systems.
Various embodiments of a system and method for digital rights management using digital signatures are described. Various embodiments may include a digital rights management component configured to receive license data including user information and an encrypted decryption key. The digital rights management component may also receive a digital signature and encrypted content data. The digital rights management component may, in response to determining that the digital signature is a valid digital signature of the license data, generate on a device, a message including the user information. The digital rights management component may also perform a key derivation function on the user information to generate a result, generate a decryption key by decrypting the encrypted decryption key with the result of the key derivation function, and decrypt the encrypted content data with the generated decryption key to generate unencrypted content data.
8,359,332, "Secure content enabled drive digital rights management system and method," assigned to Nvidia.
The present invention facilitates convenient and secure distribution of proprietary content. A present secure content enabled drive system and method permits flexible use of storage medium for both protected distribution of information and user definable storage use. In one embodiment a digital right management method includes creating a secure content enabled drive with protected storage locations and unprotected storage locations. Initial digital rights authorization is established to access secure content stored in said protected storage locations. The initial digital rights authorization to access secure content stored in said protected storage locations can be revised.