Stealth Software Technologies, Inc.

Steve Naichia Lu

Rafail Ostrovsky

Brett Hemenway Falk

William E Skeith, Iii

Quinn Grier

A hardware module has a plug to interface with an audio channel of a speech communication device. A scrambler connected to the plug is configured to receive a local audio input signal and form an encrypted audio output signal in a human audible range that is applied to the audio channel of the speech communication device. The scrambler also receives a remote encrypted audio input signal in a human audible range and forms a remote audio output signal corresponding to the remote encrypted audio input signal.

Apparatus and method for forming a voice encrypted signal in the hearing range

In one embodiment, a non-transitory computer readable storage medium includes executable instructions to perform a series of operations represented by a first garbled program received from a client on garbled data received from the client. A second garbled program is obtained as a result of execution of the first garbled program. The second garbled program includes a first garbled portion and a second garbled portion. The second garbled portion includes a third garbled portion generated through execution of the first garbled portion, such that the series of operations can be performed without interaction with the client and while maintaining as hidden the underlying content of the first garbled program and the garbled data.

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Torrance, CA, United States of America

Steve Naichia Lu