PALISADE Webinar #4 - HE Tutorial Series Part 5: Introduction to Multiparty Homomorphic Encryption

This talk by Yuriy Polyakov, a PALISADE co-founder and project lead, is the fifth part of the miniseries "Homomorphic Encryption for PALISADE Users: Tutorial with Applications". The talk introduces multiparty homomorphic encryption and explains how to use it in PALISADE. The expected audience is anyone interested in lattice-based crypto, homomorphic encryption and/or its applications, with a focus on application developers, engineers, researchers and students. The webinar includes interactive Q&A and discussion. We intend for this webinar series to be monthly, with future webinars episodes on the theory behind lattice crypto and FHE, deep-dives on the use of PALISADE for real-world applications, software engineering for cryptography, and more. The slides for the webinar and more information about PALISADE webinars can be found at https://palisade-crypto.org/webinars/. 00:00 - Introduction 02:25 - Basics of Multiparty HE 13:47 - Comparing Multikey HE and Threshold HE 19:37 - Q&A: Communication Complexity 21:18 - Threshold HE 37:33 - Q&A: Generation of polynomial "a" 40:05 - Code Example 55:00 - Questions and Closing Statements