by Özgür Kesim

Özgür Kesim from the GNU Taler team will give a lecture about Taler, the protocol suite, at Cedarcrypt 2026, a new applied cryptography summer school and conference, July 13-16 in Paphos, Cyprus.

The lecture is titled The Taler Protocol Suite for Digital Payments, and has the following abstract:

The Taler protocol suite provides online digital payments that preserve buyer anonymity while guaranteeing seller taxability and regulatory compliance. This lecture walks through the essential protocol flows — coin withdrawal, purchase, deposit, and refresh — and standard cryptographic building blocks that make them work: blind signatures (RSA and Schnorr), hash functions, HKDFs, zero-knowledge cut-and-choose proofs, EC signature schemes and ECDH used in unusual ways, up to recent work on making Taler post-quantum ready. It is both an introduction to Taler and a worked example of how cryptographic primitives compose to solve real privacy challenges in digital payment.

Check out https://cedarcrypt.org for more details.