In this week’s episode, Anna and Nico chat with Chelsea Komlo, Chief Scientist for the Zcash Foundation and member of the Cryptography, Security, and Privacy lab at the University of Waterloo.

They discuss what sparked Chelsea’s interest in cryptography research, starting with her work contributing to Tor, to her move to Zcash and her PhD work on Threshold Signature Schemes. They define some important terms around different signature schemes and discuss possible optimizations that can be used to make these more performant. They then dive into her work on the FROST Threshold Signature Scheme plus some new upcoming work.

Here’s some additional links for this episode:

EdSIDH: Supersingular Isogeny Diffie-Hellman Key Exchange on Edwards Curves by Azarderakhsh, Lang, Jao and Koziel
Efficient Signature Generation by Smart Cards by Schnorr
FROST: Flexible Round-Optimized Schnorr Threshold Signatures by Komlo and Goldberg
Episode 316: Alin Tomescu on Distributed On-chain Randomness and Keyless Accounts
Episode 295: Return to MPC with Nigel Smart
[On the (in)security of ROS] by Benhamouda, Lepoint, Loss, Orr`u and Raykova](https://eprint.iacr.org/2020/945.pdf)
Re-Randomized FROST by Gouvˆea and Komlo
Frostsnap
CFRG GitHub Repository for FROST

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Episode 319: Threshold Signature Schemes & FROST with Chelsea Komlo

Zero Knowledge