Vernam Cipher (One Time Pad)

message

We need to protect ourselves.

bits in OTP

2000

key

encrypt

decrypt

{0,1,1,1,1,0,0,1,1,1,1,0,1,0,1,0,1,1,1,1,1,1,1,1,0,1,0,1,1,0,0,1,1,1,0,0,1,1,0,0,0,1,0,1,0,1,0,0,1,0,0,1,1,1,0,0,1,1,1,0,1,0,0,0,1,0,1,1,1,1,0,0,0,0,1,1,1,1,0,1,0,0,1,0,0,1,0,0,0,1,1,1,0,0,0,0,1,1,1,1,1,1,0,1,1,1,1,1,0,1,1,1,1,0,1,0,1,0,1,0,0,0,0,0,0,1,1,0,0,1,1,1,0,0,0,1,1,0,0,1,0,1,1,1,0,1,0,1,0,0,0,1,0,1,0,1,1,1,0,0,1,0,1,0,0,0,1,1,0,0,1,0,0,1,1,1,1,0,0,0,1,0,1,1,1,1,1,0,1,1,1,1,1,0,0,1,1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,0,1,0,0,0,1,1,1,1,1,1,0,0,1,0,0,1,0,0,0,0,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,1,0,1,1,1,0,1,0,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,0,0,1,0,1,0,1,0,1,1,0,0,1,0,0,0,1,0,0,1,1,1,1,1,1,0,0,1,1,0,1,1,0,0,0,0,0,0,0,1,0,1,0,1,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,0,1,1,1,0,1,0,0,0,0,0,1,0,1,0,1,1,0,0,1,1,0,0,0,0,0,0,0,0,1,1,1,0,0,1,1,1,0,0,0,1,1,0,0,0,0,1,1,0,0,1,1,1,0,1,0,1,1,1,0,0,0,0,1,1,1,0,0,1,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,1,0,1,0,0,0,0,1,0,1,1,1,1,0,1,1,0,1,1,0,1,0,1,1,1,0,1,1,0,0,1,1}

This Demonstration:

• generates a random bit key for both sender and receiver of the Vernam cipher

• provides a simple way to encrypt and decrypt messages in various Unicode-supported languages

External Links

Cipher (Wolfram MathWorld)

Secret Codes in The Wolfram Demonstrations Project (But No Dinosaurs) (Wolfram Blog)

Permanent Citation

Rudolf Muradian

"Vernam Cipher (One Time Pad)"
http://demonstrations.wolfram.com/VernamCipherOneTimePad/
Wolfram Demonstrations Project
Published: March 7, 2011