Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    Presentations 2026
Presentation

TFHE (FHE), ZHEnith (ZK) and Nexus (MPC)

January 27, 2026

Presenters

Nigel Smart - Zama @ France; KU Leuven @ Belgium

Description

"Preview Talk" (by Team Zama) @ MPTS 2026, in reply to the NIST Threshold Call

Abstract. The presentation will present three cryptosystems which Zama intends to submit to the NIST call for threshold primitives. The first is the TFHE Homomorphic Encryption Scheme, the second is the ZHEnith ZK proof system for showing that TFHE ciphertexts are well formed, and finally the Nexus MPC system which enables distributed key generation and distributed decryption for Homomorphic Encryption schemes such as TFHE, BGV and BFV.

Joint work: Mathieu Ballandras, Carl Bootland, Kelong Cong, Ben Curtis, Daniel Demmler, Tore Kasper Frederiksen, Marc Joye, Benoît Libert, Jean-Baptiste Orfila, Nigel P. Smart, Titouan Tanguy, Samuel Tap, Michael Walter.

[Slides] Suggested readings: 

  • Preview Writeup: TFHE, ZHEnith and Nexus: A Suite of Cryptosystems to Enable Fully Homomorphic Encryption Applications
  • Threshold (Fully) Homomorphic Encryption (ia.cr/2025/699)

Presented at

Presented at MPTS 2026: NIST Workshop on Multi-Party Threshold Schemes

Downloads

Event Details

Location

    
                            

                    


                    
                    

        
 Related Topics


            

                Security and Privacy:
                    cryptography            

    


            

        

    




    


            Created January 22, 2026, Updated February 12, 2026