What is a One-Time Pad (Digital OTP)?
The One-Time Pad Cipher is actually a simple encryption system that has been in use since 1917. If used correctly, the ciphertext it produces is unbreakable. To use a Digital OTP Cipher System, randomly-generated symmetric Keys are distributed to the parties who wish to communicate. The Keys are consumable and are used only once to encrypt messages. The encrypted messages are sent to the receiver and decrypted using the matching Key. The stream of random data contained in the Key must be provably random enough for cryptography.
