About kel.bz

My name is Kelby Ludwig. I mostly write about cryptography and software security.

I used to do software security consulting and was one of the founding members of Duo Security's Application Security team. I currently work on Stripe's security team as a Software Engineer.

If you have questions about my writing or my past research, please feel free to DM me on Twitter. If you are in the Austin, Texas area and want to chat I will happily meet up with you and buy you a coffee.