Anonymous Tokens for more Private Contact Tracing

“Anonymous Tokens for more Private Contact Tracing” – Henrik Walker Moe (Bekk) and Tjerand Silde (NTNU)

This talk will be about how we integrated anonymous tokens with the Norwegian contact tracing app Smittestopp (version 2). We will talk about how anonymous tokens work, how we implemented the library (https://github.com/HenrikWM/anonymous-tokens), and we will discuss some challenges and possible improvements to the protocol. Lastly, we will mention some possible future directions and use-cases for the token system.

Henrik Walker Moe works as the Practice Lead for Information Security in Bekk. He’s an advocate for security awareness and promotes skills needed to stay current within cyber-security for his colleagues and customers. He is also a board member on NNUG (Norwegian .Net User Group) and hosts meetups for the .Net-community.

Tjerand Silde is a Ph.D. researcher in cryptography at the Norwegian University of Science and Technology in Trondheim. His main focus of research is post-quantum cryptography and privacy preserving protocols, e.g., zero-knowledge proofs, multi-party computation and anonymous credentials. Website: https://tjerandsilde.no.