file-lock

Encrypt individual files using the AES block cipher

To Do

• Test Windows Building / linux works

• Add disclaimer file

• Release 1.0.0

• directory enc can have new key for each file or use single key

• accept file with keys for directory enc/dec

Program Description

The program encrypts/decrypts a single file or every file for a given directory

• Hidden files are skipped!

Encryption can be done with a user key or a key will be generated

• Key should be stored in a file -> the first 16 bytes are read

A key generated -> stored together with the encrypted file(s)

Verified File types

• PDF PNG DOCX MP4

• To fix:

• TXT file bug -> line of new line characters appended to initial text (probably padding issue)

Build Guide

1. Create Build Directory

• Navigate to project folder and create build directory

mkdir build
cd build

2. Generate Build Files

Linux/mac

cmake ..

WIN

cmake .. -G "MinGW Makefiles"

3. Build Project

Linux/mac

cmake --build .

WIN

cmake --build . --config Release

4. Installation

With Root Privileges

Linux/mac

sudo cmake --install .

WIN - Use Administrator Command Prompt

# Navigate to build directory
cmake --install .

Without Root privileges

Run program from Build folder

Examples

# Single file Encryption
./enc "<Path to file>" -enc "<path to key file>"(optional)

# Encrypt entire directory

## UNIX -> *
./enc "/path/*" -enc "<path to key file>"(optional)


## WIN -> /empty
./enc "/path/" -enc "<path to key file>"(optional)


# Decrypt File
./enc "<Path to file>" -dec "<path to key file>"(required)


# Decrypt directory

## UNIX -> *
./enc "/path/*" -dec "<path to key file>"(required)


## WIN -> /empty
./enc "/path/" -dec "<path to key file>"(reduired)

Caution

• When files are decrypted -> output files replace input files!
• No recovery without key that was used for encryption -> to not modify key file
• Preferably DO NOT OPEN key file -> set read only mode