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Threshold cryptosystem — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Threshold_cryptosystem
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-05T23:34:24.844Z
SHA-256 of the archived text: 6bca7b8e1687cb9d247111bb6a2d5711af231bbc1c131dc77ec85ff2cbd8beb7
Stable URL of this page: https://metraipolis.com/documento/dc_fce09b199fcb

How to cite

Threshold cryptosystem — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Threshold_cryptosystem (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_fce09b199fcb (Metraipolis archive dc_fce09b199fcb, sha256 6bca7b8e1687cb9d247111bb6a2d5711af231bbc1c131dc77ec85ff2cbd8beb7)

BibTeX

@misc{dcfce09b199fcb,
  title = {Threshold cryptosystem — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Threshold_cryptosystem},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_fce09b199fcb; sha256 6bca7b8e1687cb9d247111bb6a2d5711af231bbc1c131dc77ec85ff2cbd8beb7},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Threshold_cryptosystem. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

A threshold cryptosystem, the basis for the field of threshold cryptography, is a cryptosystem in which the secret key is split into a number of pieces that are given to different parties. Several parties (more than some threshold number) can then cooperate to use the cryptosystem. More precisely, let n {\displaystyle n} be the number of parties. A cryptosystem is called (t,n)-threshold, if at least t of these parties can cooperate to perform the desired operation (usually sign a message or decrypt a ciphertext), while any subset of fewer than t parties cannot. Threshold cryptography allows to store secrets in multiple locations to prevent the capture of the secret and the subsequent cryptanalysis of that system. This makes the method a primary trust sharing mechanism, besides its safety of storage aspects. Constructions for threshold cryptosystems often combine an existing non-threshold cryptosystem with a secret sharing.

Tema degli esploratori: fiducia digitale e crittografia (deposito sistematico; categoria «Public-key cryptography»).
Fonte: Wikipedia in inglese, voce «Threshold cryptosystem» — https://en.wikipedia.org/wiki/Threshold_cryptosystem
Wikidata Q5668690: «type of cryptosystem which requires several parties (more than some threshold number) to cooperate in the decryption protocol» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q5668690
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Threshold_cryptosystem?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1336993883, consultata il 2026-10-05T23:12:00.391Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: df4277be988815c6beea16a894544ce981d889d9a1009ba3d120d452b3c92163