verifiable

package
v1.2.1 Latest Latest
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 Go to latest Published: Jun 15, 2023 License: Apache-2.0, MIT Imports: 13 Imported by: 7

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Index

Constants

View Source 
const (

	// TypeW3CVerifiableCredential is of the w3c verifiable credential standard
	TypeW3CVerifiableCredential = "VerifiableCredential"

	// JSONLDSchemaIden3Credential is a schema for context with W3CCredential type
	JSONLDSchemaIden3Credential = "https://schema.iden3.io/core/jsonld/iden3proofs.jsonld"

	// JSONLDSchemaW3CCredential2018 is a schema for context with VerifiableCredential type
	JSONLDSchemaW3CCredential2018 = "https://www.w3.org/2018/credentials/v1"

	// SparseMerkleTreeProof is CredentialStatusType for standard MTP result handlers
	SparseMerkleTreeProof CredentialStatusType = "SparseMerkleTreeProof"

	// Iden3ReverseSparseMerkleTreeProof is CredentialStatusType  for reverse iden3 algorithm
	Iden3ReverseSparseMerkleTreeProof CredentialStatusType = "Iden3ReverseSparseMerkleTreeProof"

	// JSONSchemaValidator2018 JSON schema for verification of W3CCredential
	JSONSchemaValidator2018 = "JsonSchemaValidator2018"

	// BJJSignatureProofType is a proof type for BJJ signature proofs
	BJJSignatureProofType ProofType = "BJJSignature2021"

	// Iden3SparseMerkleProofType is a proof type for MTP proofs with iden3 metadata
	//
	// Deprecated: Iden3SparseMerkleProofType is not correct semantically and replaced by Iden3SparseMerkleTreeProofType
	Iden3SparseMerkleProofType ProofType = "Iden3SparseMerkleProof"

	// Iden3SparseMerkleTreeProofType is a proof type for MTP proofs with iden3 metadata. Context is defined here: https://schema.iden3.io/core/jsonld/iden3proofs.jsonld
	Iden3SparseMerkleTreeProofType ProofType = "Iden3SparseMerkleTreeProof"

	// SparseMerkleTreeProofType ia a standard SMT proof type
	SparseMerkleTreeProofType ProofType = "SparseMerkleTreeProof"

	// ProofPurposeAuthentication defines a proof for authentication
	ProofPurposeAuthentication ProofPurpose = "Authentication"

	// Iden3CommServiceType is service type for iden3comm protocol
	Iden3CommServiceType = "iden3-communication"

	// PushNotificationServiceType is service type for delivering push notifications to identity
	PushNotificationServiceType = "push-notification"

	// CredentialMerklizedRootPositionIndex is merklized root position of W3CCredential in the IndexDataSlotA (core claim)
	CredentialMerklizedRootPositionIndex = "index"

	// CredentialMerklizedRootPositionValue is merklized root position of W3CCredential in the ValueDataSlotA (core claim)
	CredentialMerklizedRootPositionValue = "value"

	// CredentialMerklizedRootPositionNone is for non-merklized W3CCredential
	CredentialMerklizedRootPositionNone = ""

	// CredentialSubjectPositionIndex is subject position of W3CCredential in index (core claim)
	CredentialSubjectPositionIndex = "index"

	// CredentialSubjectPositionValue is subject position of W3CCredential in value (core claim)
	CredentialSubjectPositionValue = "value"

	// CredentialSubjectRootPositionValue is subject position of W3CCredential in value (core claim)
	// Deprecated: use CredentialSubjectPositionValue instead
	CredentialSubjectRootPositionValue = "value"

	// Iden3commRevocationStatusV1 is CredentialStatusType for iden3comm revocation status
	Iden3commRevocationStatusV1 CredentialStatusType = "Iden3commRevocationStatusV1.0"

	// Iden3OnсhainSparseMerkleTreeProof2023 is a proof type for MTP proofs with iden3 metadata from blockchain
	Iden3OnchainSparseMerkleTreeProof2023 CredentialStatusType = "Iden3OnchainSparseMerkleTreeProof2023"
)
View Source 
const (
	// DIDDocumentJSONSchema is a basic schema of did document
	DIDDocumentJSONSchema = `` /* 4391-byte string literal not displayed */

)

Variables

View Source 
var ErrProofNotFound = errors.New("proof not found")

ErrProofNotFound is an error when specific proof is not found in the credential

Functions

This section is empty.

Types

type Authentication added in v1.1.6 

type Authentication struct {
	CommonVerificationMethod
	// contains filtered or unexported fields
}

func (*Authentication) DID added in v1.1.6 

func (a *Authentication) DID() string

func (*Authentication) IsDID added in v1.1.6 

func (a *Authentication) IsDID() bool

func (*Authentication) MarshalJSON added in v1.1.6 

func (a *Authentication) MarshalJSON() ([]byte, error)

func (*Authentication) UnmarshalJSON added in v1.1.6 

func (a *Authentication) UnmarshalJSON(b []byte) error

type BJJSignatureProof2021 added in v0.0.23 

type BJJSignatureProof2021 struct {
	Type       ProofType  `json:"type"`
	IssuerData IssuerData `json:"issuerData"`
	CoreClaim  string     `json:"coreClaim"`
	Signature  string     `json:"signature"`
}

BJJSignatureProof2021 JSON-LD BBJJSignatureProof

func (*BJJSignatureProof2021) GetCoreClaim added in v1.0.0 

func (p *BJJSignatureProof2021) GetCoreClaim() (*core.Claim, error)

func (*BJJSignatureProof2021) ProofType added in v1.0.0 

func (p *BJJSignatureProof2021) ProofType() ProofType

func (*BJJSignatureProof2021) UnmarshalJSON added in v1.0.0 

func (p *BJJSignatureProof2021) UnmarshalJSON(in []byte) error

type CommonProof added in v1.0.0 

type CommonProof jsonObj

func (*CommonProof) GetCoreClaim added in v1.0.0 

func (p *CommonProof) GetCoreClaim() (*core.Claim, error)

func (*CommonProof) ProofType added in v1.0.0 

func (p *CommonProof) ProofType() ProofType

func (*CommonProof) UnmarshalJSON added in v1.0.0 

func (p *CommonProof) UnmarshalJSON(bytes []byte) error

type CommonVerificationMethod added in v1.1.6 

type CommonVerificationMethod struct {
	ID                  string                 `json:"id"`
	Type                string                 `json:"type"`
	Controller          string                 `json:"controller"`
	PublicKeyJwk        map[string]interface{} `json:"publicKeyJwk"`
	PublicKeyMultibase  string                 `json:"publicKeyMultibase,omitempty"`
	PublicKeyHex        string                 `json:"publicKeyHex,omitempty"`
	PublicKeyBase58     string                 `json:"publicKeyBase58,omitempty"`
	EthereumAddress     string                 `json:"ethereumAddress,omitempty"`
	BlockchainAccountID string                 `json:"blockchainAccountId,omitempty"`
}

CommonVerificationMethod DID doc verification method.

type CredentialProof added in v1.0.0 

type CredentialProof interface {
	ProofType() ProofType
	GetCoreClaim() (*core.Claim, error)
}

type CredentialProofs added in v1.0.0 

type CredentialProofs []CredentialProof

func (*CredentialProofs) UnmarshalJSON added in v1.0.0 

func (cps *CredentialProofs) UnmarshalJSON(bs []byte) error

type CredentialSchema added in v1.0.0 

type CredentialSchema struct {
	ID   string `json:"id"`
	Type string `json:"type"`
}

CredentialSchema represent the information about credential schema

type CredentialStatus 

type CredentialStatus struct {
	ID              string               `json:"id"`
	Type            CredentialStatusType `json:"type"`
	RevocationNonce uint64               `json:"revocationNonce"`
	StatusIssuer    *CredentialStatus    `json:"statusIssuer,omitempty"`
}

CredentialStatus represents the URL to fetch claim revocation info directly from the issuer.

type CredentialStatusType 

type CredentialStatusType string

CredentialStatusType type for understanding revocation type

type DIDDocument added in v0.2.0 

type DIDDocument struct {
	Context            interface{}                `json:"@context"`
	ID                 string                     `json:"id"`
	Service            []interface{}              `json:"service,omitempty"`
	VerificationMethod []CommonVerificationMethod `json:"verificationMethod,omitempty"`
	Authentication     []Authentication           `json:"authentication,omitempty"`
	KeyAgreement       []interface{}              `json:"keyAgreement,omitempty"`
}

DIDDocument defines current supported did doc model.

type DeviceMetadata added in v0.2.0 

type DeviceMetadata struct {
	AppID     string `json:"app_id"`
	PushToken string `json:"push_token"`
}

DeviceMetadata describes the structure of device metadata

type EncryptedDeviceMetadata added in v0.2.0 

type EncryptedDeviceMetadata struct {
	Ciphertext string `json:"ciphertext"` // base64 encoded
	Alg        string `json:"alg"`
}

EncryptedDeviceMetadata describes the structure of encrypted device metadata

type Iden3SparseMerkleProof deprecated 

type Iden3SparseMerkleProof struct {
	Type ProofType `json:"type"`

	IssuerData IssuerData `json:"issuerData"`
	CoreClaim  string     `json:"coreClaim"`

	MTP *mt.Proof `json:"mtp"`
}

Iden3SparseMerkleProof JSON-LD structure

Deprecated: replaced with Iden3SparseMerkleTreeProof

func (*Iden3SparseMerkleProof) GetCoreClaim added in v1.0.0 

func (p *Iden3SparseMerkleProof) GetCoreClaim() (*core.Claim, error)

func (*Iden3SparseMerkleProof) ProofType added in v1.0.0 

func (p *Iden3SparseMerkleProof) ProofType() ProofType

func (*Iden3SparseMerkleProof) UnmarshalJSON added in v1.0.0 

func (p *Iden3SparseMerkleProof) UnmarshalJSON(in []byte) error

type Iden3SparseMerkleTreeProof added in v1.1.1 

type Iden3SparseMerkleTreeProof struct {
	Type ProofType `json:"type"`

	IssuerData IssuerData `json:"issuerData"`
	CoreClaim  string     `json:"coreClaim"`

	MTP *mt.Proof `json:"mtp"`
}

Iden3SparseMerkleTreeProof JSON-LD structure

func (*Iden3SparseMerkleTreeProof) GetCoreClaim added in v1.1.1 

func (p *Iden3SparseMerkleTreeProof) GetCoreClaim() (*core.Claim, error)

func (*Iden3SparseMerkleTreeProof) ProofType added in v1.1.1 

func (p *Iden3SparseMerkleTreeProof) ProofType() ProofType

func (*Iden3SparseMerkleTreeProof) UnmarshalJSON added in v1.1.1 

func (p *Iden3SparseMerkleTreeProof) UnmarshalJSON(in []byte) error

type IssuerData added in v0.0.23 

type IssuerData struct {
	ID               string      `json:"id,omitempty"`
	State            State       `json:"state,omitempty"`
	AuthCoreClaim    string      `json:"authCoreClaim,omitempty"`
	MTP              *mt.Proof   `json:"mtp,omitempty"`
	CredentialStatus interface{} `json:"credentialStatus,omitempty"`
}

IssuerData is the data that is used to create a proof

type ProofData added in v0.0.19 

type ProofData struct {
	A        []string   `json:"pi_a"`
	B        [][]string `json:"pi_b"`
	C        []string   `json:"pi_c"`
	Protocol string     `json:"protocol"`
}

ProofData is structure that represents SnarkJS library result of proof generation

type ProofPurpose 

type ProofPurpose string

ProofPurpose is alias for string, represents proof purpose

type ProofType added in v0.0.19 

type ProofType string

ProofType represent proofs types.

type PushMetadata added in v0.2.0 

type PushMetadata struct {
	Devices []EncryptedDeviceMetadata `json:"devices"`
}

PushMetadata describes the structure of the data for push notifications

type PushService added in v0.2.0 

type PushService struct {
	Service
	Metadata PushMetadata `json:"metadata"`
}

PushService describes the services of push notifications

type RHSCredentialStatus added in v1.0.0 

type RHSCredentialStatus struct {
	ID              string               `json:"id"`
	Type            CredentialStatusType `json:"type"`
	RevocationNonce uint64               `json:"revocationNonce"`
	StatusIssuer    *CredentialStatus    `json:"statusIssuer,omitempty"`
}

RHSCredentialStatus contains type, url to fetch RHS info, issuer ID and revocation nonce and backup option to fetch credential status Deprecated: use CredentialStatus instead

type RevocationStatus added in v0.0.19 

type RevocationStatus struct {
	Issuer struct {
		State              *string `json:"state,omitempty"`
		RootOfRoots        *string `json:"rootOfRoots,omitempty"`
		ClaimsTreeRoot     *string `json:"claimsTreeRoot,omitempty"`
		RevocationTreeRoot *string `json:"revocationTreeRoot,omitempty"`
	} `json:"issuer"`
	MTP mt.Proof `json:"mtp"`
}

RevocationStatus status of revocation nonce. Info required to check revocation state of claim in circuits

type Service added in v0.2.0 

type Service struct {
	ID              string `json:"id"`
	Type            string `json:"type"`
	ServiceEndpoint string `json:"serviceEndpoint"`
}

Service describes standard DID document service field.

type State added in v0.0.23 

type State struct {
	TxID               *string `json:"txId,omitempty"`
	BlockTimestamp     *int    `json:"blockTimestamp,omitempty"`
	BlockNumber        *int    `json:"blockNumber,omitempty"`
	RootOfRoots        *string `json:"rootOfRoots,omitempty"`
	ClaimsTreeRoot     *string `json:"claimsTreeRoot,omitempty"`
	RevocationTreeRoot *string `json:"revocationTreeRoot,omitempty"`
	Value              *string `json:"value,omitempty"`
	Status             string  `json:"status,omitempty"`
}

State represents the state of the issuer

type W3CCredential added in v1.0.0 

type W3CCredential struct {
	ID                string                 `json:"id"`
	Context           []string               `json:"@context"`
	Type              []string               `json:"type"`
	Expiration        *time.Time             `json:"expirationDate,omitempty"`
	IssuanceDate      *time.Time             `json:"issuanceDate,omitempty"`
	CredentialSubject map[string]interface{} `json:"credentialSubject"`
	CredentialStatus  interface{}            `json:"credentialStatus,omitempty"`
	Issuer            string                 `json:"issuer"`
	CredentialSchema  CredentialSchema       `json:"credentialSchema"`
	Proof             CredentialProofs       `json:"proof,omitempty"`
}

W3CCredential is struct that represents claim json-ld document

func (*W3CCredential) GetCoreClaimFromProof added in v1.0.0 

func (vc *W3CCredential) GetCoreClaimFromProof(proofType ProofType) (*core.Claim, error)

GetCoreClaimFromProof returns core claim from given proof

func (*W3CCredential) Merklize added in v1.0.0 

func (vc *W3CCredential) Merklize(ctx context.Context) (*merklize.Merklizer, error)

Merklize merklizes verifiable credential

type ZKProof added in v0.0.19 

type ZKProof struct {
	Proof      *ProofData `json:"proof"`
	PubSignals []string   `json:"pub_signals"`
}

ZKProof is proof data with public signals

Source Files

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