Sanctioning content source and methods for use therewith
AssigneeViXS Systems, Inc.
InventorsPaul D. Ducharme, Heyun Zheng
Life of this patent
Estimating the term…
Abstract
A content source includes a random number generator that generates scrambling control word based on at least one random number. A source processing module generates proxy data that includes cryptographic parameters that are based on the scrambling control word, generates cryptographic data and generates scrambled media content based on the scrambling control word. A network interface sends the proxy data to a sanction server, and sends the cryptographic data and the scrambled content to a caching server.
Claims13
A content source for use with a sanction server for cryptographic sanctioning of secure transmission of media via a caching server to at least one client device, the sanction server comprising:
- a random number generator that generates a scrambling control word based on at least one random number;
- a source processing module, coupled to the random number generator and the network interface, that generates proxy data that includes cryptographic parameters that are based on the scrambling control word and cryptographic data and generates scrambled media content based on the scrambling control word;
- a network interface, coupled to the sanction processing module that provides bidirectional data communication with the sanction server, the caching server and the at least one client device via at least one network, wherein the network interface sends the proxy data to the sanction server, and sends the cryptographic data and the scrambled content to the caching server;
- wherein the sanction server transmits the proxy data to the at least one client device and transmits notification data to the caching server;
- wherein the caching server forwards the cryptographic data and the scrambled media content to the at least one client device;
- wherein the at least one client device generates the scrambling control word for descrambling the scrambled media content based on the proxy data and the cryptographic data;
- and
- wherein the proxy data, and the cryptographic data and the scrambling control word are generated in accordance with an asymmetrical public key cryptography algorithm.
A method for cryptographic sanctioning of secure transmission of media content from a content source to at least one client device via a caching server, the method comprising:
- generating a scrambling control word at a content source based on at least one random number;
- generating proxy data at the content source that includes cryptographic parameters that are based on the scrambling control word;
- generating cryptographic data at the content source that includes cryptographic parameters that are based on the scrambling control word;
- generating scrambled media content at the content source based on the scrambling control word;
- transmitting the proxy data to the sanction server;
- and
- transmitting the cryptographic data and the scrambled content to the caching server;
- wherein the sanction server transmits the proxy data to the at least one client device and transmits notification data to the caching server;
- wherein the caching server forwards the cryptographic data and the scrambled media content to the at least one client device;
- wherein the at least one client device generates the scrambling control word for descrambling the scrambled media content based on the proxy data and the cryptographic data;
- and
- wherein the proxy data, and the first cryptographic data and the scrambling control word are generated in accordance with an asymmetrical public key cryptography algorithm.
Dependencies are inferred from the claim text.