What is cryptography?

The cryptography is a technique that is used when you want to send a message that only the recipient can understand.

The cryptography is usually used when people who communicate are distant.

EncryptionThe encryption is the process that makes a message incomprehensible using a secret code.

DecryptionWhen you receive an encrypted message you have to use the code established before to understand the message.

UsesIn the history the cryptography has been used in various ways, for example for military purposes, but also by the poets for fun.