Paper 2025/868 Original: eprint.iacr.org/2025/868 ↗

Delegated PSI from Homomorphic Encryptions

Sicheng Wei
Jingwei Hu
Abstract

This paper presents an efficient protocol for private set intersection in a setting with multiple set owners and a semi-honest cloud server. The core idea is to reduce the intersection computation to secure operations over Bloom filters, enabling both scalability and efficiency. By leveraging this transformation, our protocols achieve strong privacy guarantees while minimizing computation and communication overhead.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2025-07-10: last updated
2025-05-16: published
Short URL
https://ia.cr/2025/868
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2025/868,
      author = {Sicheng Wei and Jingwei Hu},
      title = {Delegated PSI from Homomorphic Encryptions},
      howpublished = {Cryptology {ePrint} Archive, Paper 2025/868},
      year = {2025},
      url = {https://eprint.iacr.org/2025/868}
}
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