enku

This is a simple CLI tool to encrypt data.

DON'T USE THIS PROGRAM

This is unaudited reimplemented crypto. I made this tool to have fun, and it is not intended to actually be used.

Building

This project uses CMake, and can be built with:

cmake --build build

which will place the enku binary in the build directory.

(You can use another directory besides build if you'd like)

Usage

Generating Keys

enku keygen .key.pem

Encrypting data

enku encrypt .key.pem data.text > data.bin

This will print the binary data to standard out, so you can pipe it or do whatever you want with it.

Decrypting Data

enku decrypt .key.pem data.bin

This will write out the decoded data to standard out, so you can pipe it to a file if you'd prefer.

Implementation

This uses ChaCha20, as defined by RFC 7539.

The key file is encoded in a straightforward PEM format.

The output binary file includes the nonce, but currently, no form of authentication is used, which is a major flaw in the scheme.