 Secure two-party computation

Secure two-party computation (2PC) is a cryptographic protocol that enables two parties to jointly compute a function over their inputs while keeping those inputs private. In other words, it allows two participants to collaborate on a computation without revealing their individual data to each other. This is particularly useful in scenarios where sensitive information needs to be processed jointly, such as in privacy-preserving data analysis, auctions, and collaborative machine learning. ### Key Concepts 1.