# US 2006/0140407 A1 · Optical machine locking method and system

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- Number: US 2006/0140407 A1
- Document ID: US20060140407A1
- Status: Published application
- Kind: A1
- Application number: 11/271,680
- Filed: 2005-11-10
- Published: 2006-06-29
- Earliest claimed: 2004-11-10
- Inventors: Richard Selinfreund
- Web page: https://patentgrep.com/patent/US20060140407A1

## CPC

- H04L 9/0852: {Quantum cryptography (transmission systems employing electromagnetic waves other than radio waves, e.g. light, infrared H04B10/00; wavelength-division multiplex systems H04J14/02; WDM arrangements H04J14/03)}
- H04L 9/3247: {involving digital signatures}
- H04L 2209/805: Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A method for assuring the authorized nature of encrypted transmissions between a plurality of communicators using a plurality of stand-alone communication processing devices, said method comprising the steps of: a) determining unique characteristics of at least one of said stand-alone communication processing devices involved in said encrypted transmissions between said plurality of communicators; b) comparing said unique characteristics of said at least one of said stand-alone communication processing devices with a roster of unique characteristics associated with authorized stand-alone communication processing devices of authorized communicators; and c) responding to an encrypted message from said at least one of said plurality of communicators only if the stand-alone communication processing device by which such communicator is transmitting an encrypted transmission matches the unique characteristics associated with one or more authorized stand-alone communication processing devices associated with said communicator.

## Claims

### Claim 1

A method for assuring the authorized nature of encrypted transmissions between a plurality of communicators using a plurality of stand-alone communication processing devices, said method comprising the steps of:
a) determining unique characteristics of at least one of said stand-alone communication processing devices involved in said encrypted transmissions between said plurality of communicators;
b) comparing said unique characteristics of said at least one of said stand-alone communication processing devices with a roster of unique characteristics associated with authorized stand-alone communication processing devices of authorized communicators; and
c) responding to an encrypted message from said at least one of said plurality of communicators only if the stand-alone communication processing device by which such communicator is transmitting an encrypted transmission matches the unique characteristics associated with one or more authorized stand-alone communication processing devices associated with said communicator.

### Claim 2 (depends on 1)

The method of claim 1 wherein one or more of said stand-alone communication processing devices is a cell phone.

### Claim 3 (depends on 1)

The method of claim 1 wherein one or more of said stand-alone communication processing devices is a wireless email device.

### Claim 4 (depends on 1)

The method of claim 1 wherein one or more of said stand-alone communication processing devices is a smart card.

### Claim 5 (depends on 1)

The method of claim 1 wherein one or more of said stand-alone communication processing devices is an RFID.

### Claim 6 (depends on 1)

The method of claim 1 wherein one or more of encrypted transmissions is a quantum encrypted transmission.

### Claim 7 (depends on 1)

The method of claim 1 wherein at least one of the unique characteristics compared is RAM access speed.

### Claim 8 (depends on 1)

The method of claim 1 further comprising the step of validating a private key associated with one or more transmissions.

### Claim 9 (depends on 1)

The method of claim 1 wherein the unique characteristics of each of said stand-alone communication processing devices included in said encrypted transmissions are determined in step a).

### Claim 10

A stand-alone communication device operatively configured to seek unique characteristics of another stand-alone communication processing device to which it communicates and to decrypt transmissions sent from said another stand-alone communication processing device using a public-private key encryption system.

### Claim 11 (depends on 10)

The stand-alone communication device of claim 10 wherein the stand-alone communication device is a cell phone.

### Claim 12 (depends on 10)

The stand-alone communication device of claim 10 wherein the stand-alone communication device is a smart card.

### Claim 13 (depends on 10)

The stand-alone communication device of claim 10 wherein the stand-alone communication device is an RFID.

### Claim 14 (depends on 10)

The stand-alone communication device of claim 10 wherein the stand-alone communication device is a wireless email device.