What is NGU machine?

NGU machine is the encryption and decryption system of Privacy.eus. It is dedicated to my son, due to the communication difficulties we both have and because we both enjoy the world of cryptography. Privacy.eus has created NGU, a simple but effective way to create encrypted messages. NGU machine does not store or save any data.

**Never send your secret key**. If you send it by email and someone intercepts it, they will only see your encrypted message. For security, never send the key needed to decrypt the message.**

• Key:
  People who want to encrypt and decrypt messages must know the key. Everyone must use the same key, which can consist of letters, numbers, or symbols. Entering the key correctly is essential, as even a single wrong character will prevent it from working.

• Message:
  This is where the message to be encrypted or decrypted is written, always using the key agreed upon by the participants.
  

• Result:
  It will display the encrypted or decrypted message.