# The Horcrux project

This tool allows you to securely store your data by encrypting the content and splitting it into several files.

#### Please note
I'm aware this implementation is not memory efficient with large files.

I'm working on the optimization, but I'm not going to make it in time. :(

## Usage

To encrypt a file use the following syntax:

```horcrux create -n <horcrux count> <input path> <output path>```
  - `-n <horcrux count>`: number of files the encrypted data will be split into.
  - `<input path>`: file to encrypt.
  - `<output path>`: folder where to save the encrypted files.


To decrypt a file use the following syntax:

```horcrux load -k <decryption key> <input files> <output file>```
  - `-k <decryption key>`: provide the encryption key, base64 encoded.
  - `<input files>`: horcrux chunks to be reassembled. Order matters :)
  - `<output file>`: decrypted data.


## Compile

This tool is compiled using Cmake and it has been tested with gcc-10 on linux.

Use the following commands to compile the tool:
```
mkdir build && cd build
cmake ..
make
```
### Dependencies

`horcrux` needs OpenSSL-1.1 or a newer version.

## Test

GTest unit tests are available.

You can run `make test` from the build directory, or use `test/horcrux_test` for a more verbose output.

## Install

`make install` will install `horcrux` to `/usr/local/bin` by default.