My colleagues from Cybernetica and I decided to make another variant of Smart-ID / SplitKey protocol. Coppercloud is a two-party blind RSA signing with private key being split between a user and a server. Perfect for the future of privacy-preserving digital wallets! 🌐✨

New paper written with my colleagues Jelizaveta Vakarjuk and Peeter Laud from Cybernetica just got accepted to ProvSec2025 🥳 In this paper, we aim to combine server-supported signatures together with fail-stop properties. P.S. yes, protocol’s name is inspired by Mistborn series

Thrilled to share a new paper written with my colleagues -- Trilithium (Star Trek reference is intended). Our protocol is secure in UC model and allows two parties to construct FIPS compliant quantum-safe signature!

We are now more than 30 years into the quantum computing hype. https://dl.acm.org/doi/pdf/10.1145/190616.190617 OMG it's the end of cryptography! zzz😴

Very excited to share our first exploration of threshold MAYO (yes, the PQC algorithm)! 🎉 Joint work with the amazing Daniel Escudero and Guilhem Niot. The ideas can extend to UOV as well—let’s have MV-based threshold cryptography! 📄 eprint.iacr.org/2024/1960.pdf

I don't know what impresses me more - BlueSky having ePrint updates or ePrint Updated Bot being able to find my profile and tag it 🤨

The implementation for the TOPCOAT (link.springer.com/article/10.1...) is now public!!! Check it out at - github.com/ISRI-PQC/top...