TOPSECCRET Homepage

    TOPSECCRET is an acronym for True One-time Pad Secured Error Checking Coded ROM Encryption Technology. This is the project name for a simple digital device designed and constructed by Shabsi Walfish and  Vijay Pahilwani as a final project for Cooper Union's freshman  Digital Logic Course (EE150B). The purpose of this device is to transmit encrypted text over a full-duplex data bus in real time, using an "unbreakable" encryption scheme. In addition, the circuit verifies the integrity of the text being transmitted with a parity check. For this project, two terminals were connected to the data bus, and a "spy" terminal placed in between to simulate interception of the encrypted message.
 

Design Concepts -- One time pad (Vernam) ciphers and parity checking

Implementation -- How we built it

The Circuit and Board Diagrams -- Final design diagraming, and circuit breakdown

Taking the Concepts a Step Further -- Real world applications, and potential pitfalls

Related Cryptography Links -- Cryptography sites

Acknowledgments -- Thanks to all the people who helped with this project

TOPSECCRET -- When it absolutely has to be a private chat.