Explore a 23-minute conference talk presented at Eurocrypt 2016 by Zvika Brakerski, Ilan Komargodski, and Gil Segev on multi-input functional encryption in the private-key setting. Delve into the fundamentals of functional encryption in the symmetric setting and examine known constructions of functional encryption schemes. Investigate the concept of 2-input functional encryption and learn about various constructions. Understand the main idea of input aggregation and explore a candidate scheme. Study the public-key outer scheme as a warm-up, followed by one-sided and two-sided key encapsulation ideas. Conclude with a summary of how multi-input functional encryption can be derived from single-input schemes, and participate in a Q&A session to clarify any remaining questions.
Multi-input Functional Encryption in the Private-Key Setting
Overview
Syllabus
Intro
Functional Encryption (The Symmetric Setting)
Known Constructions of Functional Encryption Schemes (Highlights)
2-Input Functional Encryption
Constructions of Two-Input FE
Main Idea: Input Aggregation
Candidate Scheme
Warm-up: Public-Key Outer Scheme
Idea#1: One-Sided Key Encapsulation
Idea#2: Two-Sided Key Encapsulation
Summary: Multi-Input from Single-Input
Questions?
Taught by
TheIACR
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