README.md

Ucrypt

Data Encryption Software

git clone https://github.com/rcastrucci/ucrypt.git

Description:

Ucrypt is a versatile encryption tool, written in Python and designed to meet the demands of the most security-conscious software users.

Key Features:

• AES 256-bit: AES encryption standard with 256-bit keys to ensure an exceptional level of data security.

• Random Key Generation: Create random symmetric keys to protect your data, making it virtually impervious to breaches.

• Key Derivation with Passwords: Enhance security by generating keys derived from passwords, requiring both the key and the password for decryption.

• AES and RSA Hybrid mode: Add an extra layer of security by encrypting the AES key with RSA, allowing decryption only with the corresponding RSA private key.

Linux install

./install-linux

The installation process has made easy to install and uninstall at any time.

Mac install

./install-mac

All it does is to create configuration files and check for dependencies.

Options

Usage

The basic approach would be to encrypt using a symmetric key. This can be done with one line command

Encryption

ucrypt --generate-key personal.key --encrypt myFiles --save-as myFilesSecure --key personal.key

Decryption

ucrypt --decrypt myFilesSecure --save-as myFiles --key personal.key

All these options have short versions such as: -g -e -s -k -d

Second Factor

To enhance security of your symmetric keys. It is possible to encrypt data using a second factor authentication. Setting up a password on Ucrypt conf file to be used automatically each time you encrypt data. This could be done as follows:

Setting up password

ucrypt --auth

This will prompt a input text hidden to type and confirm your password. The password will be saved in a conf file with a Hash SHA-256.

Enabling Second Factor

ucrypt --enable-factor

short version: ucrypt -ef

Done! Now each time you encrypt data, Ucrypt will use your password to derivative a key. That means, to decrypt data, one must have the key and must know the password.

But do I need to generate a key each time?

# What if I want to perform an automatic task every day to encrypt data, and don't want to have thousands of keys?
# It is possible to set up a default key configuration and with second factor enabled, there are no worries.

Set up default key

ucrypt --generate-key

That by itself will generate a random key and save at the Ucrypt key folder.

With a password created, a second factor enabled and your default key set up. To encrypt myData and save as mySecureData, is simple as that:

Encryption

ucrypt -e myData -s mySecuredData

Decryption

ucrypt -d mySecuredData -s myData

Then will be necessary to type your password.

Check Ucrypt status

ucrypt --status

short version: ucrypt -t

The command above will display if you have your password set up correctly, if second factor is enabled or disabled and show you which key is set as default.

Change Default Key

ucrypt --default-key personal.key

short version: ucrypt -dk personal.key