Private set intersection

Private Set Intersection (PSI) is a cryptographic protocol that allows two or more parties to compute the intersection of their datasets without revealing any additional information about their respective datasets. This means that while the parties can determine which elements are common to both sets, they do not have access to any other data outside of the intersecting elements. ### Key Concepts: 1. **Privacy**: The main goal of PSI is to ensure the privacy of the datasets involved.