Patrick Amrein

Patrick started his career as a mobile developer very early on, with a game for a Sony Ericson using Java2ME. He switched technologies a few times - Android, iOS, Windows Phone (the best platform ever!) - and decided to study physics. Thanks to a few courses in algebra (among other math courses) - and thanks to the work of some great researchers - he came up with a proposal for device binding of BBS signatures with ECDSA (zk-bridge). He is currently working on a variety of projects on cryptographic protocols. Patrick holds an MSc in Physics from ETH Zurich.


Session

05-28
10:00
30min
SD-JWT: From Selective Disclosure to Zero Knowledge
Patrick Amrein, Christopher Meier

Extending the definition of the hash algorithm defined in SD-JWT allows zero knowledge proofs to be used on properties. Here we show how sigma protocols with Pedersen commitments could be added with almost no (structural) modifications to RFC-9901.

Arena