Class Presentation

constructor

• new Presentation(version, spec, proof, attributeCiphertexts?, context?, nonce?, blindedAttributeCiphertexts?): Presentation

• Parameters

  • version: string
  • spec: PresentationSpecification
  • proof: CompositeProof
  • OptionalattributeCiphertexts: Map<number, AttributeCiphertexts[]>
  • Optionalcontext: string
  • Optionalnonce: Uint8Array
  • OptionalblindedAttributeCiphertexts: AttributeCiphertexts[]

  Returns Presentation

Optional ReadonlyattributeCiphertexts

Optional ReadonlyblindedAttributeCiphertexts

Optional Readonlycontext

Optional Readonlynonce

Readonlyproof

Readonlyspec

getKeyedProofs

• getKeyedProofs(): Map<number, KeyedProof>

• Get keyed proofs for credentials and there statuses where applicable.

  Returns Map<number, KeyedProof>

  • The key in the returned map is the credential index

toJSON

• toJSON(): object

• Returns object

verify

• verify(credentialVerifParams, accumulatorVerifParams?, predicateParams?, circomOutputs?, blindedAttributesCircomOutputs?, circomOutputsMultiCred?): VerifyResult

• Parameters

  • credentialVerifParams: Map<number, CredentialVerificationParam> | CredentialVerificationParam[]

    Map of verification parameters for credentials in the presentation. The key of the map is the credential index. Can also take array of keys in the order of credentials in the presentation for supporting old API but this will be removed in future. The verification param could be a public key or secret key. Certain kinds of credentials don't require either for (partial) verification but will require for full verification
  • OptionalaccumulatorVerifParams: Map<number, AccumulatorVerificationParam>

    Mapping credential index -> accumulator verification parameters.
  • OptionalpredicateParams: Map<string, PredicateParamType>

    Setup params for various predicates
  • OptionalcircomOutputs: Map<number, Uint8Array[][]>

    Values for the outputs variables of the Circom programs used for predicates. They key of the map is the credential index
  • OptionalblindedAttributesCircomOutputs: Uint8Array[][]

    Outputs for Circom predicates on blinded attributes
  • OptionalcircomOutputsMultiCred: Uint8Array[][]

    Values for the outputs variables of the Circom programs spanning over multiple credential attributes

  Returns VerifyResult

StaticaddBppSetupParamsToTracker

• addBppSetupParamsToTracker(paramId, param, setupParamsTrk, statementIdx): void

• Parameters

  • paramId: string
  • param: undefined | PredicateParamType
  • setupParamsTrk: SetupParamsTracker
  • statementIdx: number

  Returns void

StaticaddPedCommG1ToTracker

• addPedCommG1ToTracker(paramId, param, setupParamsTrk, statementIdx): number

• Parameters

  • paramId: string
  • param: undefined | PredicateParamType
  • setupParamsTrk: SetupParamsTracker
  • statementIdx: number

  Returns number

StaticaddSmcSetupParamsToTracker

• addSmcSetupParamsToTracker(paramId, param, setupParamsTrk, statementIdx): void

• Parameters

  • paramId: string
  • param: undefined | PredicateParamType
  • setupParamsTrk: SetupParamsTracker
  • statementIdx: number

  Returns void

StaticciphertextFromBs58

• ciphertextFromBs58(v, ret, version): void

• Parameters

  • v: object
  • ret: AttributeCiphertexts
  • version: string

  Returns void

StaticciphertextToBs58

• ciphertextToBs58(v, ret, version): void

• Parameters

  • v: object
  • ret: object
  • version: string

  Returns void

StaticfromJSON

• fromJSON(j): Presentation

• Parameters

  • j: object

  Returns Presentation

StaticpublicInequalityStatement

• publicInequalityStatement(ineq, setupParamsTrk, statementIdx, paramId?, param?): Uint8Array

• Parameters

  • ineq: Uint8Array
  • setupParamsTrk: SetupParamsTracker
  • statementIdx: number
  • OptionalparamId: string
  • Optionalparam: PredicateParamType

  Returns Uint8Array