Prime Match - A Privacy-Preserving Inventory Matching System

Explore a groundbreaking 15-minute conference talk from USENIX Security '23 that introduces Prime Match, an innovative privacy-preserving inventory matching system for financial stock trading. Discover how this system revolutionizes the traditional inventory matching process by enabling efficient order matching between clients while maintaining privacy and reducing market impact. Learn about the challenges faced in the current financial trading landscape, where sharing sensitive order information with banks poses risks of information leaks and adverse price movements. Delve into the cryptographic innovation behind Prime Match, including a two-round secure linear comparison protocol for computing minimum quantities with malicious security. Gain insights into the real-world implementation and adoption of Prime Match by J.P. Morgan, marking it as the first secure multiparty computation solution actively used in the financial sector. Understand the potential impact of this technology on the future of privacy-preserving financial transactions and its implications for both clients and financial institutions.