Geoencryption Demonstration

Di Qiu, Sherman Lo, Per Enge

August 15 2007

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@#)&)*+!#$N$&*&$&=W& /-!&)$#+

@#)&)*+!#$N$&*&$&=W& /-!&)$#+

Layers of Security

Ones who can receive the encrypted file

Conventional CryptographicAlgorithms

Ones who have the random key

Geoencryption &Signal Authentication

Ones who have the navigational receiver & locate

at user’s location

3400 m2 /153,295,000 km2

= 2.2 x 10-11

“Parking Lot” Attack

TOA

Data Collection

72.34 m

Encryption & Decryption Software

Geoencryption Parameters

• Status: Encoded or Not

• Plaintext = information to encode

• Select what stations & parameters to use– Quantization level

• Data (date) to use

• Location to use

• Resulting encrypted data

• Geo lock key