porkchop

Decryption utility for Yaesu ham radio firmware images.

Background

Yaesu provides a firmware update utility for their ham radios that contains an encrypted firmware image. This utility reimplements the decryption algorithm found in the update utility and emits a decrypted image.

A more in-depth blog post about how the encryption works can be found on my blog.

Building

git clone https://github.com/landaire/porkchop.git cd porkchop cargo build

You can optionally install it direct from crates.io:

cargo install porkchop

Usage

``` porkchop 0.1.0 Decryption utility for Yaesu ham radio firmware images.

USAGE: porkchop [output]

FLAGS: -h, --help Prints help information -V, --version Prints version information

ARGS: Input file

Output file, stdout if not present ```

Example:

porkchop firmware_update_utility.exe firmware.bin