= Secure two-party computation
{wiki=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.
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