Verimatrix, Inc.

Beyond Broadband Technology, LLC

Donovan Steve White

Robert T Kulakowski

William D Bauer

David W Eder

Methods and apparatus permit a one-way downloadable security for electronic signals such as cable television, free-to-air, direct broadcast satellite, electronic device enablement, and other services. The system can allow a broadcast transmission capability () to provide an encrypted signal to an individual reception capability () in a manner that maintains the full security of a traditional decryption key process while completely eliminating any need for a trusted authority. By including a nascent decryption key generator that may create a secure, key-based environment from an unsecure individualized information transmission (), a sequence of key(s) from a root key(s) to a derived key(s) to a temporary key(s) and ultimately to a fully random key(s) can be generated in activating a device or a decryption capability for a subscriber.

Cable television secure communication system for one way restricted

In a security system for network communications with client devices, each client device has a communication module for communicating with at least one server over a network, a data storage module for storing one or more covert data values of one or more operational events at the client device, and a covert identifier generating module which creates at least one covert identifier based on the stored covert data values. The covert identifier is provided in one or more network messages to the server, or otherwise sent to the service provider, and may be provided in response to a specific request received over the network, or routinely in one or more messages normally involved in network communications. The server compares covert identifiers received from client devices having the same client identifier in order to detect possible clones.

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Poway, CA, United States of America

Donovan Steve White