## Postgres Extension for MalwareDB

This is an attempt to use Rust for the similarity functions used by MalwareDB.

The similarity functions:
* [SSDeep](https://ssdeep-project.github.io/ssdeep/index.html): provided by the [fuzzyhash](https://crates.io/crates/fuzzyhash) crate.
* [LZJD](https://github.com/EdwardRaff/LZJD): provided by the [malwaredb-lzjd](https://crates.io/crates/malwaredb-lzjd) crate.
* [TLSH](https://tlsh.org): provided by the [tlsh-fixed](https://crates.io/crates/tlsh-fixed) crate.

Goals:
* Enable easier deployment of Malware DB.
* Get the benefits Rust has to offer on the Postgres side.
* Ensure the functions work across Postgres versions.

MalwareDB-pg is currently a work-in-progress.

### Compiling
This project uses [pgrx](https://github.com/pgcentralfoundation/pgrx). Please refer to their project page for prerequisites.

1. Install pgrx: `cargo install --locked cargo-pgrx`
2. Initialize pgrx: `cargo pgrx init`
3. Run tests: `cargo pgrx test`
4. Try the module: `cargo pgrx run`, then run `create extension malwaredb_pg;`
5. Package the module: `cargo pgrx package`