---
OA_place: repository
OA_type: green
_id: '18755'
abstract:
- lang: eng
  text: "A universalthresholdizer (UT), constructed from a threshold fully homomorphic
    encryption by Boneh et. al , Crypto 2018, is a general framework for universally
    thresholdizing many cryptographic schemes. However, their framework is insufficient
    to construct strongly secure threshold schemes, such as threshold signatures and
    threshold public-key encryption, etc.\r\n\r\nIn this paper, we strengthen the
    security definition for a universal thresholdizer and propose a scheme which satisfies
    our stronger security notion. Our UT scheme is an improvement of Boneh et. al
    ’s construction at the level of threshold fully homomorphic encryption using a
    key homomorphic pseudorandom function. We apply our strongly secure UT scheme
    to construct strongly secure threshold signatures and threshold public-key encryption."
acknowledgement: Ehsan Ebrahimi is supported by the Luxembourg National Research Fund
  under the Junior CORE project QSP (C22/IS/17272217/QSP/Ebrahimi).
article_processing_charge: No
author:
- first_name: Ehsan
  full_name: Ebrahimi, Ehsan
  last_name: Ebrahimi
- first_name: Anshu
  full_name: Yadav, Anshu
  id: dc8f1524-403e-11ee-bf07-9649ad996e21
  last_name: Yadav
citation:
  ama: 'Ebrahimi E, Yadav A. Strongly secure universal thresholdizer. In: <i>30th
    International Conference on the Theory and Application of Cryptology and Information
    Security</i>. Vol 15486. Springer Nature; 2024:207-239. doi:<a href="https://doi.org/10.1007/978-981-96-0891-1_7">10.1007/978-981-96-0891-1_7</a>'
  apa: 'Ebrahimi, E., &#38; Yadav, A. (2024). Strongly secure universal thresholdizer.
    In <i>30th International Conference on the Theory and Application of Cryptology
    and Information Security</i> (Vol. 15486, pp. 207–239). Kolkata, India: Springer
    Nature. <a href="https://doi.org/10.1007/978-981-96-0891-1_7">https://doi.org/10.1007/978-981-96-0891-1_7</a>'
  chicago: Ebrahimi, Ehsan, and Anshu Yadav. “Strongly Secure Universal Thresholdizer.”
    In <i>30th International Conference on the Theory and Application of Cryptology
    and Information Security</i>, 15486:207–39. Springer Nature, 2024. <a href="https://doi.org/10.1007/978-981-96-0891-1_7">https://doi.org/10.1007/978-981-96-0891-1_7</a>.
  ieee: E. Ebrahimi and A. Yadav, “Strongly secure universal thresholdizer,” in <i>30th
    International Conference on the Theory and Application of Cryptology and Information
    Security</i>, Kolkata, India, 2024, vol. 15486, pp. 207–239.
  ista: 'Ebrahimi E, Yadav A. 2024. Strongly secure universal thresholdizer. 30th
    International Conference on the Theory and Application of Cryptology and Information
    Security. ASIACRYPT: Conference on the Theory and Application of Cryptology and
    Information Security vol. 15486, 207–239.'
  mla: Ebrahimi, Ehsan, and Anshu Yadav. “Strongly Secure Universal Thresholdizer.”
    <i>30th International Conference on the Theory and Application of Cryptology and
    Information Security</i>, vol. 15486, Springer Nature, 2024, pp. 207–39, doi:<a
    href="https://doi.org/10.1007/978-981-96-0891-1_7">10.1007/978-981-96-0891-1_7</a>.
  short: E. Ebrahimi, A. Yadav, in:, 30th International Conference on the Theory and
    Application of Cryptology and Information Security, Springer Nature, 2024, pp.
    207–239.
conference:
  end_date: 2024-12-13
  location: Kolkata, India
  name: 'ASIACRYPT: Conference on the Theory and Application of Cryptology and Information
    Security'
  start_date: 2024-12-09
date_created: 2025-01-05T23:01:56Z
date_published: 2024-12-12T00:00:00Z
date_updated: 2025-09-09T12:00:12Z
day: '12'
department:
- _id: KrPi
doi: 10.1007/978-981-96-0891-1_7
external_id:
  isi:
  - '001443889100007'
intvolume: '     15486'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://eprint.iacr.org/2024/2078
month: '12'
oa: 1
oa_version: Preprint
page: 207-239
publication: 30th International Conference on the Theory and Application of Cryptology
  and Information Security
publication_identifier:
  eissn:
  - 1611-3349
  isbn:
  - '9789819608904'
  issn:
  - 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Strongly secure universal thresholdizer
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 15486
year: '2024'
...