Paper 2022/945 Original: eprint.iacr.org/2022/945 ↗

Searchable Encryption with randomized ciphertext and randomized keyword search

Marco Calderini
Riccardo Longo
Massimiliano Sala
Irene Villa
Abstract

The notion of public key encryption with keyword search (PEKS) was introduced to efficiently search over encrypted data. In this paper, we propose a PEKS scheme in which both the encrypted keyword and the trapdoor are randomized, so that the cloud server is not able to recognize identical queries. Our scheme is CI-secure in the single-user setting and TI-secure in the multi-user setting with multi-trapdoor.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2022-07-21: last updated
2022-07-21: published
Short URL
https://ia.cr/2022/945
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2022/945,
      author = {Marco Calderini and Riccardo Longo and Massimiliano Sala and Irene Villa},
      title = {Searchable Encryption with randomized ciphertext and randomized keyword search},
      howpublished = {Cryptology {ePrint} Archive, Paper 2022/945},
      year = {2022},
      url = {https://eprint.iacr.org/2022/945}
}
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