Ccrypt is a tool that allows us to encrypt and decrypt any file in a simple and fast way. It uses Rijndael encryption, chosen as the standard by the US government for the Advanced Encryption Standard (AES), one of the most secure encryption systems that exist.

We install the tool:

We generate the passkey with which we will encrypt the files:

We encrypt the file:

It will have generated a file with the same name but with the .cpt extension:

FILE.cpt

To decrypt it and obtain the original file, we must execute ccrypt with the -d parameter: