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draft-irtf-cfrg-bbs-signatures-09 - The BBS Signature Scheme

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IRTF - Internet Research Task Force

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The BBS Signature Scheme

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https://datatracker.ietf.org/doc/draft-irtf-cfrg-bbs-signatures/

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IETF Datatracker

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This document describes the BBS Signature scheme, a secure, multi- message digital signature protocol, supporting proving knowledge of a signature while selectively disclosing any subset of the signed messages. Concretely, the scheme allows for signing multiple messages whilst producing a single, constant size, digital signature. Additionally, the possessor of a BBS signatures is able to create zero-knowledge, proofs of knowledge of a signature, while selectively disclosing subsets of the signed messages. Being zero-knowledge, the BBS proofs do not reveal any information about the undisclosed messages or the signature itself, while at the same time, guaranteeing the authenticity and integrity of the disclosed messages.

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