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US 9,755,674 B2Granted
Method for encryption obfuscation
AssigneeRaytheon Company
InventorsGary M. Graceffo, Andrew M. Kowalevicz
Life of this patent
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Abstract
A system and method provide a signal carrier; an overt persistent digital channel containing a host signal and carried on the signal carrier; a non-persistent channel encoded onto the host signal by timing variation of the host signal, the non-persistent channel including access data for accessing hidden information in the host signal.
Claims14
A system for encoding data in a signal, comprising:
- a hardware oscillator to provide at least one signal carrier;
- a host data encoder to encode an overt persistent digital channel containing a host signal on the at east one signal carrier;
- a hardware modulator coupled to the oscillator and the host data encoder to modulate a non-persistent channel onto the at least one signal carrier;
- and
- the non-persistent channel encoded onto the at least one signal carrier by timing variation of the host signal, the non-persistent channel including access data for accessing hidden information in the host signal, wherein the access data includes at least one of a stencil, a code book and a decryption key.
2 more elements
A method for sending data on a signal carrier, comprising:
- providing, by a hardware oscillator, at least one signal carrier;
- encoding, using a host data encoder, an overt persistent digital channel containing a host signal on the at least one signal carrier;
- modulating, using a hardware modulator coupled to the oscillator and the host data encoder, a non-persistent channel onto the at least one signal carrier, the non-persistent channel encoded onto the at least one signal carrier by timing variation of the host signal, the non-persistent channel including access data for accessing hidden information in the host signal, wherein the access data includes at least one of a stencil, a code book and a decryption key;
- reading the timing variations from the host signal for separating the access data from the carrier signal and the host signal;
- and
- accessing the hidden data using the access data.
3 more elements
Dependencies are inferred from the claim text.