Paper 2023/603 Original: eprint.iacr.org/2023/603 ↗

TFHE Public-Key Encryption Revisited

Marc Joye
Abstract

This note introduces a public-key variant of TFHE. The output ciphertexts are of LWE type. Interestingly, the public key is shorter and the resulting ciphertexts are less noisy. The security of the scheme holds under the standard RLWE assumption. Several variations and extensions are also described.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Preprint.
History
2023-04-27: last updated
2023-04-27: published
Short URL
https://ia.cr/2023/603
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2023/603,
      author = {Marc Joye},
      title = {TFHE Public-Key Encryption Revisited},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/603},
      year = {2023},
      url = {https://eprint.iacr.org/2023/603}
}
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