We present a three-round protocol for threshold ECDSA signing with malicious security
against a dishonest majority, which information-theoretically UC-realizes a standard …

We propose a secure multiparty signing protocol for the BBS+ signature scheme; in other
words, an anonymous credential scheme with threshold issuance. We prove that due to the …

Private set intersection (PSI) is one of the most extensively studied instances of secure
computation. PSI allows two parties to compute the intersection of their input sets without …

Private set intersection (PSI) allows two parties to compute the intersection of their sets
without revealing anything else. In some applications of PSI, a server holds a large set and …

We design DiStefano: an efficient, maliciously-secure framework for generating private
commitments over TLS-encrypted web traffic, for a designated third-party. DiStefano …

This thesis looks at two lines of study aiming at bringing privacy-enhancing technologies
closer to deployment: using techniques from multiparty computation (MPC) to distribute …

Shamir Secrets Sharing (SSS) is a foundational element of many Multi-Party Computation
(MPC) protocols. Although SSS has the ability to handle linear combinations of multiple …

ECDSA is a standardized signing algorithm that is widely used in TLS, code signing,
cryptocurrency and more. Due to its importance, the problem of securely computing ECDSA …