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BLS digital signature — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/BLS_digital_signature
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-05T22:55:52.131Z
SHA-256 of the archived text: 0a75fd7178c366d9424595595c59720a4926cada25964c44c5d3c99e9e8cab24
Stable URL of this page: https://metraipolis.com/documento/dc_2cf66bb1400d

How to cite

BLS digital signature — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/BLS_digital_signature (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_2cf66bb1400d (Metraipolis archive dc_2cf66bb1400d, sha256 0a75fd7178c366d9424595595c59720a4926cada25964c44c5d3c99e9e8cab24)

BibTeX

@misc{dc2cf66bb1400d,
  title = {BLS digital signature — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/BLS_digital_signature},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_2cf66bb1400d; sha256 0a75fd7178c366d9424595595c59720a4926cada25964c44c5d3c99e9e8cab24},
  year = {2026}
}

Archived text

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

A BLS digital signature, also known as Boneh–Lynn–Shacham (BLS), is a cryptographic signature scheme which allows a user to verify that a signer is authentic. The scheme uses a bilinear pairing e : G 1 × G 2 → G T {\displaystyle e:G_{1}\times G_{2}\to G_{T}} , where G 1 , G 2 , {\displaystyle G_{1},G_{2},} and G T {\displaystyle G_{T}} are elliptic curve groups of prime order q {\displaystyle q} , and a hash function H {\displaystyle H} from the message space into G 1 {\displaystyle G_{1}} . Signature are elements of G 1 {\displaystyle G_{1}} , public keys are elements of G 2 {\displaystyle G_{2}} , and the secret key is an integer in [ 0 , q − 1 ] {\displaystyle [0,q-1]} . Working in an elliptic curve group provides some defense against index calculus attacks (with the caveat that such attacks are still possible in the target group G T {\displaystyle G_{T}} of the pairing), allowing shorter signatures than FDH signatures for a similar level of security. Signatures produced by the BLS signature scheme are often referred to as short signatures, BLS short signatures, or simply BLS signatures. The signature scheme is provably secure (the scheme is existentially unforgeable under adaptive chosen-message attacks) in the random oracle model assuming the intractability of the computational Diffie–Hellman problem in a gap Diffie–Hellman group.

Tema degli esploratori: fiducia digitale e crittografia (deposito sistematico; categoria «Digital signature schemes»).
Fonte: Wikipedia in inglese, voce «BLS digital signature» — https://en.wikipedia.org/wiki/BLS_digital_signature
Wikidata Q4835869 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q4835869
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/BLS_digital_signature?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 1369176459, consultata il 2026-10-05T22:47:17.208Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 60e8db45b166135a1862ad03a46bf3929ab72eed74017f5d4cdadb0ad5daa1f6