Show HN: GPG-fingerprint-filter-GPU – Collide GPG key fingerprints, CUDA powered

6 points

4 years ago

This is a tool to collide OpenPGP / GnuPG key fingerprints that follow specific pattern (e.g. ending with 8 identical digits). CUDA is required to accelerate the computation. Satisfy your vanity by getting a special key :)

Initially I wrote this to learn CUDA programming, and partly to show people how easy it is to collide a short key ID - a 8-digit key fingerprint can be collided in a few seconds with my GTX 1650.

Recently I found some similar tools on GitHub (keyword: vanity key) but it seems that only mine takes advantage of CUDA / GPU. My friends has used it to generate an ed25519 key that has a fingerprint ending with 16 identical digits.

Disclaimer: I'm not sure if fixed fingerprints result in any security implication.