wireguard-vanity-key

You can get yourself a vanity key using https://github.com/AlexanderYastrebov/wireguard-vanity-key tool: % wireguard-vanity-key -prefix=NAS/ private public attempts duration attempts/s EiBsDB8zt/G4+VWGvxW2ZznNXYmcslcIyJimNR2PpF4= NAS/aex8+IFzLePBYVNGMsSo/1/XeUZcam+Hn8wbNB4= 22619537 0s 112587360

Indeed, be careful with anything that involves secret bits. This tool uses proper crypto/rand initialisation of the starting key https://github.com/AlexanderYastrebov/onion-vanity-address/b... Check out my other vanity generators (they all use crypto/rand): https://github.com/AlexanderYastrebov/wireguard-vanity-key https://github.com/AlexanderYastrebov/age-vanity-keygen https://github.com/AlexanderYastrebov/ethereum-vanity-addres...

Thanks, great question! In short: I got obsessed by making it as fast as possible and read a ton of elliptic curve cryptography papers. It was a journey that started from reading WireGuard kernel sources, then I was thinking about deriving IPv6 address from peer key, left a random comment on a dated gist https://gist.github.com/artizirk/c91e4f8c237dec07e3ad1b286f1... from which I learned about vanity key concept. I naturally enjoy doing performance optimization work so when I discovered incremental approach idea here https://github.com/warner/wireguard-vanity-address/pull/15 I decided to create my own tool. I've implemented first version of https://github.com/AlexanderYastrebov/wireguard-vanity-key and then continuously profiled it to improve performance. From profiling I saw that field inversion and multiplication are the main operatio

You can create prefixed keys (aka vanity key) for each peer using https://github.com/AlexanderYastrebov/wireguard-vanity-key $ wireguard-vanity-key --prefix=mac/ private public attempts duration attempts/s Mtvsq5urRK/HRE1EfqTkZ9dtBNNBjSVPbqYBZ/BL4Qw= mac/t3wcAUhyZUti7OM4KsGQ7/V00HPRmzI3agaSplM= 37258118 1s 70119328 $ wireguard-vanity-key --prefix=ipad/ private public attempts duration attempts/s hJXdv5FKyem2WqWzduSaEhEw1H4b+6BGTIqJeYu9H1c= ipad/s6w2nBEDhmuEl/xyLeohEbfc5MWUy5D8dJHgAs= 158299886 2s 69564916

Great idea and clean implementation! You seem to be interested in performance engineering - I did some work recently, check this out https://github.com/AlexanderYastrebov/wireguard-vanity-key

It is ~1000 faster than similar existing tools due to interesting elliptic curve optimizations that you may find interesting to explore. Looking forward for your comments and ideas. Thanks!