Paper 2024/346 Original: eprint.iacr.org/2024/346 ↗

A data aggregation protocol based on TFHE

Maria Ferrara
Antonio Tortora
Maria Tota
Abstract

Torus Fully Homomorphic Encryption (TFHE) is a probabilistic cryptosytem over the real torus which allows one to operate directly on encrypted data without first decrypting them. We present an aggregation protocol based on a variant of TFHE for computing the sum of sensitive data, working only with the corresponding ciphertexts. Our scheme is an ideal choice for a system of smart meters - electronic devices for measuring energy consumption - that demands consumers’ privacy. In contrast to some other solutions, our proposal does not require any communication among smart meters and it is quantum-safe.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2024-02-27: last updated
2024-02-27: published
Short URL
https://ia.cr/2024/346
License
https://creativecommons.org/licenses/by-nc/4.0/

BibTeX

@misc{cryptoeprint:2024/346,
      author = {Maria Ferrara and Antonio Tortora and Maria Tota},
      title = {A data aggregation protocol based on TFHE},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/346},
      year = {2024},
      url = {https://eprint.iacr.org/2024/346}
}
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