verifiable

package
v2.6.1 Latest Latest
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 Go to latest Published: Dec 17, 2024 License: Apache-2.0, MIT Imports: 21 Imported by: 20

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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"

	// JSONLDSchemaIden3DisplayMethod is a schema for context with Display method type
	JSONLDSchemaIden3DisplayMethod = "https://schema.iden3.io/core/jsonld/displayMethod.jsonld"

	// JSONLDSchemaIden3AuthBJJCredential is a schema for context with AuthBJJCredential type
	JSONLDSchemaIden3AuthBJJCredential = "https://schema.iden3.io/core/jsonld/auth.jsonld"

	JSONSchemaIden3AuthBJJCredential = "https://schema.iden3.io/core/json/auth.json"

	// 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
	// Deprecated: https://www.w3.org/2018/credentials/#JsonSchemaValidator2018
	JSONSchemaValidator2018 = "JsonSchemaValidator2018"

	// JSONSchema2023 JSON schema for verification of W3CCredential (https://www.w3.org/TR/vc-json-schema/#jsonschema2023)
	JSONSchema2023 = "JsonSchema2023"

	// 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"

	// Iden3MobileServiceType is service type for mobile function invoke to reach user agent in iden3 protocol
	Iden3MobileServiceType = "Iden3MobileServiceV1"

	// Iden3WebServiceType is service type for web redirects as a way to reach user agent in iden3 protocol
	Iden3WebServiceType = "Iden3WebRedirectServiceV1"

	// 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"

	// Iden3RefreshService2023 is the type of refresh service
	Iden3RefreshService2023 RefreshServiceType = "Iden3RefreshService2023"

	// Iden3BasicDisplayMethodV1 is the type fof basic display method
	Iden3BasicDisplayMethodV1 DisplayMethodType = "Iden3BasicDisplayMethodV1"
)
View Source 
const (
	// DIDDocumentJSONSchema is a basic schema of did document
	DIDDocumentJSONSchema = `` /* 4463-byte string literal not displayed */

	// AuthBJJJsonSchema is a basic schema of auth BJJ
	AuthBJJJsonSchema = `` /* 1795-byte string literal not displayed */

	// AuthBJJJsonLDSchema is a JSON-LD schema of auth BJJ
	AuthBJJJsonLDSchema = `` /* 3401-byte string literal not displayed */

)

Variables

View Source 
var DefaultCredentialStatusResolverRegistry = &CredentialStatusResolverRegistry{}
View Source 
var ErrCredentialIsRevoked = errors.New("credential is revoked")
View Source 
var ErrProofNotFound = errors.New("proof not found")

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

View Source 
var ErrProofNotSupported = errors.New("proof not supported")

ErrProofNotSupported is an error when specific proof is not supported for validation

Functions

func DeleteStatusResolver added in v2.3.0 

func DeleteStatusResolver(resolverType CredentialStatusType)

func GetIssuerDID added in v2.3.0 

func GetIssuerDID(ctx context.Context) *w3c.DID

GetIssuerDID extract the issuer DID from the context. Or nil if nothing is found.

func GetSerializationAttrFromParsedContext added in v2.3.1 

func GetSerializationAttrFromParsedContext(ldCtx *ld.Context,
	tp string) (string, error)

func ParseSerializationAttr added in v2.3.1 

func ParseSerializationAttr(serAttr string) (slotsPaths, error)

func RegisterStatusResolver added in v2.3.0 

func RegisterStatusResolver(resolverType CredentialStatusType,
	resolver CredentialStatusResolver)

func WithIssuerDID added in v2.3.0 

func WithIssuerDID(ctx context.Context, issuerDID *w3c.DID) context.Context

WithIssuerDID puts the issuer DID in the context

Types

type Authentication 

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

func (*Authentication) DID 

func (a *Authentication) DID() string

func (*Authentication) IsDID 

func (a *Authentication) IsDID() bool

func (*Authentication) MarshalJSON 

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

func (*Authentication) UnmarshalJSON 

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

type BJJSignatureProof2021 

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 

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

func (*BJJSignatureProof2021) ProofType 

func (p *BJJSignatureProof2021) ProofType() ProofType

func (*BJJSignatureProof2021) UnmarshalJSON 

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

type CommonProof 

type CommonProof jsonObj

func (*CommonProof) GetCoreClaim 

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

func (*CommonProof) ProofType 

func (p *CommonProof) ProofType() ProofType

func (*CommonProof) UnmarshalJSON 

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

type CommonVerificationMethod 

type CommonVerificationMethod struct {
	ID                   string                 `json:"id"`
	Type                 string                 `json:"type"`
	Controller           string                 `json:"controller"`
	PublicKeyJwk         map[string]interface{} `json:"publicKeyJwk,omitempty"`
	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"`
	StateContractAddress string                 `json:"stateContractAddress,omitempty"`
	IdentityState
}

CommonVerificationMethod DID doc verification method.

type CoreClaimOptions added in v2.3.1 

type CoreClaimOptions struct {
	RevNonce              uint64 `json:"revNonce"`
	Version               uint32 `json:"version"`
	SubjectPosition       string `json:"subjectPosition"`
	MerklizedRootPosition string `json:"merklizedRootPosition"`
	Updatable             bool   `json:"updatable"`
	MerklizerOpts         []merklize.MerklizeOption
}

CoreClaimOptions is params for core claim parsing

type CredentialProof 

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

type CredentialProofs 

type CredentialProofs []CredentialProof

func (*CredentialProofs) UnmarshalJSON 

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

type CredentialSchema 

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 CredentialStatusResolver added in v2.3.0 

type CredentialStatusResolver interface {
	Resolve(ctx context.Context,
		credentialStatus CredentialStatus) (RevocationStatus, error)
}

CredentialStatusResolver is an interface that allows to interact with deifferent types of credential status to resolve revocation status

func GetStatusResolver added in v2.3.0 

func GetStatusResolver(
	resolverType CredentialStatusType) (CredentialStatusResolver, error)

type CredentialStatusResolverRegistry added in v2.3.0 

type CredentialStatusResolverRegistry struct {
	// contains filtered or unexported fields
}

CredentialStatusResolverRegistry is a registry of CredentialStatusResolver

func (*CredentialStatusResolverRegistry) Delete added in v2.3.0 

func (r *CredentialStatusResolverRegistry) Delete(resolverType CredentialStatusType)

func (*CredentialStatusResolverRegistry) Get added in v2.3.0 

func (r *CredentialStatusResolverRegistry) Get(resolverType CredentialStatusType) (CredentialStatusResolver, error)

func (*CredentialStatusResolverRegistry) Register added in v2.3.0 

func (r *CredentialStatusResolverRegistry) Register(resolverType CredentialStatusType, resolver CredentialStatusResolver)

type CredentialStatusType 

type CredentialStatusType string

CredentialStatusType type for understanding revocation type

type CredentialStatusValidationOption added in v2.3.0 

type CredentialStatusValidationOption func(*credentialStatusValidationOpts) error

func WithValidationStatusResolverRegistry added in v2.3.0 

func WithValidationStatusResolverRegistry(
	registry *CredentialStatusResolverRegistry) CredentialStatusValidationOption

type DIDDocument 

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

DIDDocument defines current supported did doc model.

type DIDResolver added in v2.3.0 

type DIDResolver interface {
	Resolve(ctx context.Context, did *w3c.DID) (DIDDocument, error)
}

type DeviceMetadata 

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

DeviceMetadata describes the structure of device metadata

type DisplayMethod added in v2.1.2 

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

type DisplayMethodType added in v2.1.2 

type DisplayMethodType string

type EncryptedDeviceMetadata 

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

EncryptedDeviceMetadata describes the structure of encrypted device metadata

type GistInfo 

type GistInfo struct {
	Root                string         `json:"root"`
	ReplacedByRoot      string         `json:"replacedByRoot"`
	CreatedAtTimestamp  string         `json:"createdAtTimestamp"`
	ReplacedAtTimestamp string         `json:"replacedAtTimestamp"`
	CreatedAtBlock      string         `json:"createdAtBlock"`
	ReplacedAtBlock     string         `json:"replacedAtBlock"`
	Proof               *GistInfoProof `json:"proof,omitempty"`
}

GistInfo representation state of gist root.

type GistInfoProof added in v2.5.1 

type GistInfoProof struct {
	merkletree.Proof
	Type ProofType `json:"type"`
}

GistInfoProof representation proof of GistInfo object.

func (GistInfoProof) MarshalJSON added in v2.5.1 

func (g GistInfoProof) MarshalJSON() ([]byte, error)

MarshalJSON for GistInfoProof

func (*GistInfoProof) UnmarshalJSON added in v2.5.1 

func (g *GistInfoProof) UnmarshalJSON(data []byte) error

UnmarshalJSON for GistInfoProof

type HTTPDIDResolver added in v2.3.0 

type HTTPDIDResolver struct {
	// contains filtered or unexported fields
}

func (HTTPDIDResolver) Resolve added in v2.3.0 

func (r HTTPDIDResolver) Resolve(ctx context.Context, did *w3c.DID) (out DIDDocument, err error)

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 

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

func (*Iden3SparseMerkleProof) ProofType 

func (p *Iden3SparseMerkleProof) ProofType() ProofType

func (*Iden3SparseMerkleProof) UnmarshalJSON 

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

type Iden3SparseMerkleTreeProof 

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 

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

func (*Iden3SparseMerkleTreeProof) ProofType 

func (p *Iden3SparseMerkleTreeProof) ProofType() ProofType

func (*Iden3SparseMerkleTreeProof) UnmarshalJSON 

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

type IdentityState 

type IdentityState struct {
	Published *bool      `json:"published,omitempty"`
	Info      *StateInfo `json:"info,omitempty"`
	Global    *GistInfo  `json:"global,omitempty"`
}

IdentityState representation all info about identity.

type IssuerData 

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 IssuerResolver added in v2.3.0 

type IssuerResolver struct {
}

func (IssuerResolver) Resolve added in v2.3.0 

func (IssuerResolver) Resolve(ctx context.Context,
	credentialStatus CredentialStatus) (out RevocationStatus, err error)

type ProofData 

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 

type ProofType string

ProofType represent proofs types.

type PushMetadata 

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

PushMetadata describes the structure of the data for push notifications

type PushService 

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

PushService describes the services of push notifications

type RHSCredentialStatus 

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 RefreshService added in v2.1.0 

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

RefreshService is struct that represents refresh service json-ld document

type RefreshServiceType added in v2.1.0 

type RefreshServiceType string

RefreshServiceType represent refresh service types

type RevocationStatus 

type RevocationStatus struct {
	Issuer TreeState        `json:"issuer"`
	MTP    merkletree.Proof `json:"mtp"`
}

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

func ValidateCredentialStatus added in v2.3.0 

func ValidateCredentialStatus(ctx context.Context, credStatus CredentialStatus,
	opts ...CredentialStatusValidationOption) (RevocationStatus, error)

ValidateCredentialStatus resolves the credential status (possibly download proofs from outer world) and validates the proof. May return ErrCredentialIsRevoked if the credential was revoked.

type Service 

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

Service describes standard DID document service field.

type State 

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 StateInfo 

type StateInfo struct {
	ID                  string `json:"id"`
	State               string `json:"state"`
	ReplacedByState     string `json:"replacedByState"`
	CreatedAtTimestamp  string `json:"createdAtTimestamp"`
	ReplacedAtTimestamp string `json:"replacedAtTimestamp"`
	CreatedAtBlock      string `json:"createdAtBlock"`
	ReplacedAtBlock     string `json:"replacedAtBlock"`
}

StateInfo is information about identity state

type TreeState added in v2.3.0 

type TreeState struct {
	State              *string `json:"state"`
	RootOfRoots        *string `json:"rootOfRoots,omitempty"`
	ClaimsTreeRoot     *string `json:"claimsTreeRoot,omitempty"`
	RevocationTreeRoot *string `json:"revocationTreeRoot,omitempty"`
}

type W3CCredential 

type W3CCredential struct {
	ID string `json:"id,omitempty"`

	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"`
	RefreshService    *RefreshService        `json:"refreshService,omitempty"`
	DisplayMethod     *DisplayMethod         `json:"displayMethod,omitempty"`
}

W3CCredential is struct that represents claim json-ld document

func (*W3CCredential) GetCoreClaimFromProof 

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

GetCoreClaimFromProof returns core claim from given proof

func (*W3CCredential) Merklize 

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

Merklize merklizes verifiable credential

func (*W3CCredential) ToCoreClaim added in v2.3.1 

func (vc *W3CCredential) ToCoreClaim(ctx context.Context, opts *CoreClaimOptions) (*core.Claim, error)

ToCoreClaim returns Claim object from W3CCredential

func (*W3CCredential) VerifyProof added in v2.3.0 

func (vc *W3CCredential) VerifyProof(ctx context.Context, proofType ProofType,
	didResolver DIDResolver, opts ...W3CProofVerificationOpt) error

VerifyProof verify credential proof

type W3CProofVerificationOpt added in v2.3.0 

type W3CProofVerificationOpt func(opts *w3CProofVerificationConfig)

W3CProofVerificationOpt returns configuration options for W3C proof verification

func WithStatusResolverRegistry added in v2.3.0 

func WithStatusResolverRegistry(registry *CredentialStatusResolverRegistry) W3CProofVerificationOpt

WithStatusResolverRegistry return new options

type WebRedirectService added in v2.3.2 

type WebRedirectService struct {
	Service
	Method string `json:"method"`
}

WebRedirectService describes the service of web redirection

type ZKProof 

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

ZKProof is proof data with public signals

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