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.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.