AnonCreds
Protocolo de Identidade
Fundação
Detalhes
Licença Permissive: code under Apache-2.0; the specification text under the Community Specification License 1.0. https://github.com/anoncreds/anoncreds-spec; https://github.com/anoncreds/anoncreds-rs (Rust reference implementation)
Status de Dev 🟢 Ativo
Proprietário LF Decentralized Trust (Hyperledger AnonCreds project; the GitHub organisation 'anoncreds' describes itself as an LF Decentralized Trust project); the specification's editors include Stephen Curran, Sam Curren and others from IDunion and the Technische Universität Berlin
Órgão de Governança LF Decentralized Trust, AnonCreds Project (charter and maintainer process in the anoncreds/governance repository)
País International (an LF Decentralized Trust project; editors named across several organisations; the cited sources give no single country)
Ano de Início 2017
Stack Rust reference library (issuer, prover/holder, verifier services) with bindings; CL-signature-based zero-knowledge proofs; schema, credential definition, revocation registry and status-list objects published to a verifiable data registry of the implementer's choice
Financiamento Not stated by the project.
Última Investigação 29 de out. de 2026
Protocolo de Identidade Atributos
Origens Privacy-preserving credentials for self-sovereign identity, originating in the Hyperledger Indy project and generalised so the credentials no longer depend on one ledger; based on the 'Anonymous credentials with type-3 revocation' work by Khovratovich, Lodder and Parra
Banco de Dados
Linguagem de Consulta
Formatos de Dados AnonCreds objects (schema, credential definition, revocation registry definition and status list, credential offer, request, credential, presentation) as JSON; the specification defines each object
Suporte Móvel Library-level: the Rust library has bindings used by wallet applications; no application of its own
Suporte Web Library-level only
Aplicativos Nativos Library-level: the Rust library is embedded in wallets and agents
Termos Free and open: code under Apache-2.0 and the specification under the Community Specification License 1.0
Fundos
Baseado Em The Hyperledger Indy credential implementation and Camenisch-Lysyanskaya signatures, with type-3 revocation (Khovratovich, Lodder, Parra); the v1.0 draft removes the dependency on one ledger
Permissões Issuers decide who receives credentials; holders decide what to disclose; verifiers decide which proofs to accept
Autenticação e Identidade A holder proves possession of credentials with zero-knowledge proofs bound to a hidden link secret; no global identifier is revealed to the verifier
Modelo de Armazenamento Schemas, credential definitions and revocation objects are published to a verifiable data registry (originally an Indy ledger, now any supported registry); credentials are held by the holder
Interoperabilidade Used with Aries-style agents and a number of registries; the specification calls itself ledger-agnostic in v1.0; interoperability with W3C Verifiable Credentials data models is addressed by separate profiles outside the cited sources
Portabilidade de Dados Credentials are held by the holder and can be presented to any verifier that supports the format; they are bound to the issuer's published definition
Governança e Tomada de Decisão Project charter and maintainer processes in the anoncreds/governance repository; the specification is the output of the AnonCreds Working Group's consensus
Maturidade / Padronização do Protocolo v1.0 Draft specification under a community specification licence, with a reference implementation and years of deployment; not a W3C or IETF standard
Padrões de Identidade Predates and differs from W3C Verifiable Credentials (it uses its own zero-knowledge format); related to W3C DID practice through Aries and registries
Padrões de Identidade - Lista
Métodos DID Suportados Registry-dependent; originally did:sov and Indy-based methods, with registry-agnostic identifiers in v1.0 (details are in the specification)
Gestão de Chaves The issuer holds the credential-definition private key; the holder keeps a link secret; keys are managed by the implementing wallet or agent
Tipos de Credenciais Zero-knowledge verifiable credentials with revocation; attributes encoded as integers
Tipos de Credenciais - Lista
Método de Verificação The verifier checks a zero-knowledge presentation against the published credential definition and revocation status list, including predicates and non-revocation proofs
Recursos de Privacidade Zero-knowledge selective disclosure and predicates, unlinkable presentations, and link-secret binding so multiple credentials prove one holder without a shared identifier
Métodos de Autenticação Zero-knowledge proofs of credential possession; the issuer authenticates through its published definition
Mecanismo de Revogação Type-3 accumulator-based revocation registries with status lists; the holder proves non-revocation without revealing the credential
Tipos de Agentes Suportados Issuers, holders (provers) and verifiers: individuals, organisations and devices
Tipos de Carteira/Cliente Wallets and agents that embed the library; the project's own code is a library
Mecanismos de Recuperação
Conformidade / Regulamentações
Protocolos de Troca de Credenciais Credential offer, request and presentation flows defined in the specification; messaging is carried by the surrounding agent protocols
Estrutura de Confiança Trust in issuers' published credential definitions on a verifiable data registry, with the verifier choosing which issuers to accept
Modelo de Custo Free to use; registry publication costs depend on the chosen registry
Resistência à Censura Moderate: verification needs only the published definition, but publishing and revocation depend on the chosen registry
Relacionamentos
Como esta ferramenta se conecta a outras ferramentas e organizações, a partir de relacionamentos revisados pelo responsável pelos dados do OpenHaven. Descrevem como os projetos se conectam, não a qualidade deles.
- Implementações em conformidade
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