cryptosuite

package
v0.0.4-alpha Latest Latest
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 Go to latest Published: May 10, 2023 License: Apache-2.0 Imports: 16 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	BBSSecurityContext                             string        = "https://w3c.github.io/vc-di-bbs/contexts/v1"
	BBSPlusSignature2020                           SignatureType = "BbsBlsSignature2020"
	BBSPlusSignatureSuiteID                        string        = "https://w3c-ccg.github.io/ldp-bbs2020/#the-bbs-signature-suite-2020"
	BBSPlusSignatureSuiteType                      LDKeyType     = BLS12381G2Key2020
	BBSPlusSignatureSuiteCanonicalizationAlgorithm string        = "https://w3id.org/security#URDNA2015"
	// BBSPlusSignatureSuiteDigestAlgorithm uses https://www.rfc-editor.org/rfc/rfc4634
	BBSPlusSignatureSuiteDigestAlgorithm gocrypto.Hash = gocrypto.BLAKE2b_384
)
View Source 
const (
	BLS12381G2Key2020 LDKeyType = "Bls12381G2Key2020"

	G1 CRV = "BLS12381_G1"
	G2 CRV = "BLS12381_G2"
)
View Source 
const (
	JSONWebKey2020Type LDKeyType = "JsonWebKey2020"

	OKP KTY = "OKP"
	EC  KTY = "EC"
	RSA KTY = "RSA"

	Ed25519   CRV = "Ed25519"
	X25519    CRV = "X25519"
	SECP256k1 CRV = "secp256k1"
	P256      CRV = "P-256"
	P384      CRV = "P-384"
)
View Source 
const (
	JSONWebSignature2020Context                string        = "https://w3id.org/security/suites/jws-2020/v1"
	JSONWebSignature2020                       SignatureType = "JsonWebSignature2020"
	JWSSignatureSuiteID                        string        = "https://w3c-ccg.github.io/security-vocab/#JsonWebSignature2020"
	JWSSignatureSuiteType                      LDKeyType     = JSONWebKey2020Type
	JWSSignatureSuiteCanonicalizationAlgorithm string        = "https://w3id.org/security#URDNA2015"
	// JWSSignatureSuiteDigestAlgorithm uses https://www.rfc-editor.org/rfc/rfc4634
	JWSSignatureSuiteDigestAlgorithm gocrypto.Hash = gocrypto.SHA256
	// JWSSignatureSuiteProofAlgorithm  uses https://www.rfc-editor.org/rfc/rfc7797
	JWSSignatureSuiteProofAlgorithm = JSONWebSignature2020
)
View Source 
const (
	W3CSecurityContext string = "https://w3id.org/security/v2"

	AssertionMethod ProofPurpose = "assertionMethod"
	Authentication  ProofPurpose = "authentication"

	JWTFormat PayloadFormat = "jwt"
	LDPFormat PayloadFormat = "ldp"
)

Variables

This section is empty.

Functions

func GetContextsFromProvable 

func GetContextsFromProvable(p Provable) ([]any, error)

GetContextsFromProvable searches from a Linked Data `@context` property in the document and returns the value associated with the context, if it exists.

func PubKeyBytesToTypedKey 

func PubKeyBytesToTypedKey(keyBytes []byte, kt LDKeyType) (gocrypto.PublicKey, error)

PubKeyBytesToTypedKey converts a public key byte slice to a crypto.PublicKey based on a given key type, merging both LD key types and JWK key types

Types

type ALG 

type ALG string

type BBSPlusSignature2020Proof 

type BBSPlusSignature2020Proof struct {
	Type                     SignatureType `json:"type,omitempty"`
	Created                  string        `json:"created,omitempty"`
	VerificationMethod       string        `json:"verificationMethod,omitempty"`
	ProofPurpose             ProofPurpose  `json:"proofPurpose,omitempty"`
	ProofValue               string        `json:"proofValue,omitempty"`
	Nonce                    string        `json:"nonce,omitempty"`
	RequiredRevealStatements []int         `json:"requiredRevealStatements,omitempty"`
}

func BBSPlusProofFromGenericProof 

func BBSPlusProofFromGenericProof(p crypto.Proof) (*BBSPlusSignature2020Proof, error)

BBSPlusProofFromGenericProof accepts either a slice with exactly one element, or a single element and creates a BBSPlusProofFromGenericProof by unmarshaling the JSON marshaled representation of the element found in `p`.

func (*BBSPlusSignature2020Proof) SetProofValue 

func (b *BBSPlusSignature2020Proof) SetProofValue(proofValue string)

type BBSPlusSignatureProofSuite 

type BBSPlusSignatureProofSuite struct{}

func GetBBSPlusSignatureProofSuite 

func GetBBSPlusSignatureProofSuite() *BBSPlusSignatureProofSuite

func (BBSPlusSignatureProofSuite) CanonicalizationAlgorithm 

func (BBSPlusSignatureProofSuite) CanonicalizationAlgorithm() string

func (BBSPlusSignatureProofSuite) Canonicalize 

func (BBSPlusSignatureProofSuite) Canonicalize(marshaled []byte) (*string, error)

func (BBSPlusSignatureProofSuite) CreateDeriveProof 

func (b BBSPlusSignatureProofSuite) CreateDeriveProof(inputProofDocument any, revealDocument map[string]any) (*DeriveProofResult, error)

CreateDeriveProof https://w3c-ccg.github.io/vc-di-bbs/#create-derive-proof-data-algorithm

func (BBSPlusSignatureProofSuite) CreateVerifyHash 

func (b BBSPlusSignatureProofSuite) CreateVerifyHash(doc map[string]any, proof crypto.Proof, opts *ProofOptions) ([]byte, error)

CreateVerifyHash https://w3c-ccg.github.io/data-integrity-spec/#create-verify-hash-algorithm augmented by https://w3c-ccg.github.io/ldp-bbs2020/#create-verify-data-algorithm

func (BBSPlusSignatureProofSuite) Digest 

func (BBSPlusSignatureProofSuite) Digest(tbd []byte) ([]byte, error)

func (BBSPlusSignatureProofSuite) ID 

func (BBSPlusSignatureProofSuite) ID() string

func (BBSPlusSignatureProofSuite) Marshal 

func (BBSPlusSignatureProofSuite) Marshal(data any) ([]byte, error)

func (BBSPlusSignatureProofSuite) MessageDigestAlgorithm 

func (BBSPlusSignatureProofSuite) MessageDigestAlgorithm() gocrypto.Hash

func (BBSPlusSignatureProofSuite) RequiredContexts 

func (BBSPlusSignatureProofSuite) RequiredContexts() []string

func (BBSPlusSignatureProofSuite) SelectivelyDisclose 

func (b BBSPlusSignatureProofSuite) SelectivelyDisclose(v BBSPlusVerifier, p Provable, toDiscloseFrame map[string]any, nonce []byte) (map[string]any, error)

SelectivelyDisclose takes in a credential (parameter `p` that's Provable) and a map of fields to disclose as an LD frame, and produces a map of the JSON representation of the derived credential. The derived credential only contains the information that was specified in the LD frame, and a proof that's derived from the original credential. Note that a requirement for `p` is that the property `"proof"` must be present when it's marshaled to JSON, and it's value MUST be an object that conforms to a `BBSPlusProof`.

func (BBSPlusSignatureProofSuite) SignatureAlgorithm 

func (BBSPlusSignatureProofSuite) SignatureAlgorithm() SignatureType

func (BBSPlusSignatureProofSuite) Type 

func (BBSPlusSignatureProofSuite) Type() LDKeyType

func (BBSPlusSignatureProofSuite) Verify 

func (b BBSPlusSignatureProofSuite) Verify(v Verifier, p Provable) error

Verify verifies a BBS Plus derived proof. Note that the underlying value for `v` must be of type `*BBSPlusVerifier`. Bug here: https://github.com/w3c-ccg/ldp-bbs2020/issues/62

type BBSPlusSignatureSuite 

type BBSPlusSignatureSuite struct{}

func (BBSPlusSignatureSuite) CanonicalizationAlgorithm 

func (BBSPlusSignatureSuite) CanonicalizationAlgorithm() string

func (BBSPlusSignatureSuite) Canonicalize 

func (BBSPlusSignatureSuite) Canonicalize(marshaled []byte) (*string, error)

func (BBSPlusSignatureSuite) CreateVerifyHash 

func (b BBSPlusSignatureSuite) CreateVerifyHash(doc map[string]any, proof crypto.Proof, opts *ProofOptions) ([]byte, error)

CreateVerifyHash https://w3c-ccg.github.io/data-integrity-spec/#create-verify-hash-algorithm augmented by https://w3c-ccg.github.io/ldp-bbs2020/#create-verify-data-algorithm

func (BBSPlusSignatureSuite) Digest 

func (BBSPlusSignatureSuite) Digest(tbd []byte) ([]byte, error)

func (BBSPlusSignatureSuite) ID 

func (BBSPlusSignatureSuite) ID() string

func (BBSPlusSignatureSuite) Marshal 

func (BBSPlusSignatureSuite) Marshal(data any) ([]byte, error)

func (BBSPlusSignatureSuite) MessageDigestAlgorithm 

func (BBSPlusSignatureSuite) MessageDigestAlgorithm() gocrypto.Hash

func (BBSPlusSignatureSuite) RequiredContexts 

func (BBSPlusSignatureSuite) RequiredContexts() []string

func (BBSPlusSignatureSuite) Sign 

func (b BBSPlusSignatureSuite) Sign(s Signer, p Provable) error

func (BBSPlusSignatureSuite) SignatureAlgorithm 

func (BBSPlusSignatureSuite) SignatureAlgorithm() SignatureType

func (BBSPlusSignatureSuite) Type 

func (BBSPlusSignatureSuite) Type() LDKeyType

func (BBSPlusSignatureSuite) Verify 

func (b BBSPlusSignatureSuite) Verify(v Verifier, p Provable) error

type BBSPlusSigner 

type BBSPlusSigner struct {
	*crypto.BBSPlusSigner
	*crypto.BBSPlusVerifier
	// contains filtered or unexported fields
}

func NewBBSPlusSigner 

func NewBBSPlusSigner(kid string, privKey *bbs.PrivateKey, purpose ProofPurpose) *BBSPlusSigner

func (*BBSPlusSigner) GetKeyID 

func (s *BBSPlusSigner) GetKeyID() string

func (*BBSPlusSigner) GetPayloadFormat 

func (s *BBSPlusSigner) GetPayloadFormat() PayloadFormat

func (*BBSPlusSigner) GetProofPurpose 

func (s *BBSPlusSigner) GetProofPurpose() ProofPurpose

func (*BBSPlusSigner) GetSignatureType 

func (*BBSPlusSigner) GetSignatureType() SignatureType

func (*BBSPlusSigner) GetSigningAlgorithm 

func (*BBSPlusSigner) GetSigningAlgorithm() string

func (*BBSPlusSigner) SetPayloadFormat 

func (s *BBSPlusSigner) SetPayloadFormat(format PayloadFormat)

func (*BBSPlusSigner) SetProofPurpose 

func (s *BBSPlusSigner) SetProofPurpose(purpose ProofPurpose)

func (*BBSPlusSigner) Sign 

func (s *BBSPlusSigner) Sign(tbs []byte) ([]byte, error)

type BBSPlusVerifier 

type BBSPlusVerifier struct {
	*crypto.BBSPlusVerifier
}

func NewBBSPlusVerifier 

func NewBBSPlusVerifier(kid string, pubKey *bbs.PublicKey) *BBSPlusVerifier

func (BBSPlusVerifier) DeriveProof 

func (v BBSPlusVerifier) DeriveProof(messages [][]byte, sigBytes, nonce []byte, revealedIndexes []int) ([]byte, error)

DeriveProof derives a proof from the given signature and nonce. It is used in creating selective disclosure representations of a signed object.

func (BBSPlusVerifier) GetKeyID 

func (v BBSPlusVerifier) GetKeyID() string

func (BBSPlusVerifier) Verify 

func (v BBSPlusVerifier) Verify(message, signature []byte) error

Verify is used to verify a signature over a message using a BLS key.

func (BBSPlusVerifier) VerifyDerived 

func (v BBSPlusVerifier) VerifyDerived(message, signature, nonce []byte) error

VerifyDerived is used to verify a derived proof over a message using a BLS key. It is used in verifying selective disclosure representations of a signed object.

type BLSKey2020 

type BLSKey2020 struct {
	ID               string    `json:"id,omitempty"`
	Type             LDKeyType `json:"type,omitempty"`
	Controller       string    `json:"controller,omitempty"`
	PublicKeyBase58  string    `json:"publicKeyBase58,omitempty"`
	PrivateKeyBase58 string    `json:"privateKeyBase58,omitempty"`
}

func GenerateBLSKey2020 

func GenerateBLSKey2020(keyType LDKeyType) (*BLSKey2020, error)

GenerateBLSKey2020 https://w3c-ccg.github.io/vc-di-bbs/#bls12-381

func (BLSKey2020) GetPrivateKey 

func (b BLSKey2020) GetPrivateKey() (*bbs.PrivateKey, error)

func (BLSKey2020) GetPublicKey 

func (b BLSKey2020) GetPublicKey() (*bbs.PublicKey, error)

type CRV 

type CRV string

type CryptoSuite 

type CryptoSuite interface {
	CryptoSuiteInfo

	// Sign https://w3c-ccg.github.io/data-integrity-spec/#proof-algorithm
	// this method mutates the provided provable object, adding a `proof` block`
	Sign(s Signer, p Provable) error
	// Verify https://w3c-ccg.github.io/data-integrity-spec/#proof-verification-algorithm
	Verify(v Verifier, p Provable) error
}

CryptoSuite encapsulates the behavior of a proof type as per the W3C specification on data integrity https://w3c-ccg.github.io/data-integrity-spec/#creating-new-proof-types

func GetBBSPlusSignatureSuite 

func GetBBSPlusSignatureSuite() CryptoSuite

func GetJSONWebSignature2020Suite 

func GetJSONWebSignature2020Suite() CryptoSuite

type CryptoSuiteInfo 

type CryptoSuiteInfo interface {
	ID() string
	Type() LDKeyType
	CanonicalizationAlgorithm() string
	MessageDigestAlgorithm() gocrypto.Hash
	SignatureAlgorithm() SignatureType
	RequiredContexts() []string
}

type CryptoSuiteProofType 

type CryptoSuiteProofType interface {
	Marshal(data any) ([]byte, error)
	Canonicalize(marshaled []byte) (*string, error)
	// CreateVerifyHash https://www.w3.org/community/reports/credentials/CG-FINAL-data-integrity-20220722/#create-verify-hash-algorithm
	CreateVerifyHash(doc map[string]any, proof crypto.Proof, proofOptions *ProofOptions) ([]byte, error)
	// Digest runs a given digest algorithm https://www.w3.org/community/reports/credentials/CG-FINAL-data-integrity-20220722/#dfn-message-digest-algorithm
	// on a canonizliaed document prior to signing. Sometimes implementations will be a no-op as digesting is handled
	// by the signature algorithm itself.
	Digest(tbd []byte) ([]byte, error)
}

CryptoSuiteProofType is an interface that defines functionality needed to sign and verify data It encapsulates the functionality defined by the data integrity proof type specification https://www.w3.org/community/reports/credentials/CG-FINAL-data-integrity-20220722/#creating-new-proof-types

type DeriveProofResult 

type DeriveProofResult struct {
	RevealedIndicies             []int
	InputProofDocumentStatements []string
	RevealedDocument             map[string]any
}

type GenericProvable 

type GenericProvable map[string]any

GenericProvable represents a provable that is not constrained by a specific type

func (*GenericProvable) GetProof 

func (g *GenericProvable) GetProof() *crypto.Proof

func (*GenericProvable) SetProof 

func (g *GenericProvable) SetProof(p *crypto.Proof)

type JSONWebKey2020 

type JSONWebKey2020 struct {
	ID                string    `json:"id,omitempty"`
	Type              LDKeyType `json:"type,omitempty"`
	Controller        string    `json:"controller,omitempty"`
	jwx.PrivateKeyJWK `json:"privateKeyJwk,omitempty"`
	jwx.PublicKeyJWK  `json:"publicKeyJwk,omitempty"`
}

JSONWebKey2020 complies with https://w3c-ccg.github.io/lds-jws2020/#json-web-key-2020

func GenerateEd25519JSONWebKey2020 

func GenerateEd25519JSONWebKey2020() (*JSONWebKey2020, error)

GenerateEd25519JSONWebKey2020 returns a JsonWebKey2020 value, containing both public and private keys for an Ed25519 key.

func GenerateJSONWebKey2020 

func GenerateJSONWebKey2020(kty KTY, crv CRV) (*JSONWebKey2020, error)

GenerateJSONWebKey2020 The JSONWebKey2020 type specifies a number of key type and curve pairs to enable JOSE conformance these pairs are supported in this library and generated via the function below https://w3c-ccg.github.io/lds-jws2020/#dfn-jsonwebkey2020

func GenerateP256JSONWebKey2020 

func GenerateP256JSONWebKey2020() (*JSONWebKey2020, error)

GenerateP256JSONWebKey2020 returns a JsonWebKey2020 value, containing both public and private keys for a P-256 ECDSA key.

func GenerateP384JSONWebKey2020 

func GenerateP384JSONWebKey2020() (*JSONWebKey2020, error)

GenerateP384JSONWebKey2020 returns a JsonWebKey2020 value, containing both public and private keys for a P-384 ECDSA key.

func GenerateRSAJSONWebKey2020 

func GenerateRSAJSONWebKey2020() (*JSONWebKey2020, error)

GenerateRSAJSONWebKey2020 returns a JsonWebKey2020 value, containing both public and private keys for an RSA-2048 key.

func GenerateSECP256k1JSONWebKey2020 

func GenerateSECP256k1JSONWebKey2020() (*JSONWebKey2020, error)

GenerateSECP256k1JSONWebKey2020 returns a JsonWebKey2020 value, containing both public and private keys for a secp256k1 key transformed to an ecdsa key. We use the secp256k1 implementation from Decred https://github.com/decred/dcrd which is utilized in the widely accepted go bitcoin node implementation from the btcsuite project https://github.com/btcsuite/btcd/blob/master/btcec/btcec.go#L23

func GenerateX25519JSONWebKey2020 

func GenerateX25519JSONWebKey2020() (*JSONWebKey2020, error)

GenerateX25519JSONWebKey2020 returns a JsonWebKey2020 value, containing both public and private keys for an Ed25519 key transformed to a bi-rationally equivalent X25519 key.

func JSONWebKey2020FromPrivateKey 

func JSONWebKey2020FromPrivateKey(key gocrypto.PrivateKey) (*JSONWebKey2020, error)

JSONWebKey2020FromPrivateKey returns a JsonWebKey2020 value from a given private key, containing both JWK public and private key representations of the key.

func (*JSONWebKey2020) IsValid 

func (jwk *JSONWebKey2020) IsValid() error

type JSONWebKeySigner 

type JSONWebKeySigner struct {
	jwx.Signer
	// contains filtered or unexported fields
}

JSONWebKeySigner constructs a signer for a JSONWebKey2020 object. Given a signature algorithm (e.g. ES256, PS384) and a JSON Web Key (private key), the signer is able to accept a message and provide a valid JSON Web Signature (JWS) value as a result.

func NewJSONWebKeySigner 

func NewJSONWebKeySigner(id string, key jwx.PrivateKeyJWK, purpose ProofPurpose) (*JSONWebKeySigner, error)

func (*JSONWebKeySigner) GetKeyID 

func (s *JSONWebKeySigner) GetKeyID() string

func (*JSONWebKeySigner) GetPayloadFormat 

func (s *JSONWebKeySigner) GetPayloadFormat() PayloadFormat

func (*JSONWebKeySigner) GetProofPurpose 

func (s *JSONWebKeySigner) GetProofPurpose() ProofPurpose

func (*JSONWebKeySigner) GetSignatureType 

func (*JSONWebKeySigner) GetSignatureType() SignatureType

func (*JSONWebKeySigner) GetSigningAlgorithm 

func (s *JSONWebKeySigner) GetSigningAlgorithm() string

func (*JSONWebKeySigner) SetPayloadFormat 

func (s *JSONWebKeySigner) SetPayloadFormat(format PayloadFormat)

func (*JSONWebKeySigner) SetProofPurpose 

func (s *JSONWebKeySigner) SetProofPurpose(purpose ProofPurpose)

func (*JSONWebKeySigner) Sign 

func (s *JSONWebKeySigner) Sign(tbs []byte) ([]byte, error)

Sign returns a byte array signature value for a message `tbs`

type JSONWebKeyVerifier 

type JSONWebKeyVerifier struct {
	jwx.Verifier
}

JSONWebKeyVerifier constructs a verifier for a JSONWebKey2020 object. Given a signature algorithm (e.g. ES256, PS384) and a JSON Web Key (pub key), the verifier is able to accept a message and signature, and provide a result to whether the signature is valid.

func NewJSONWebKeyVerifier 

func NewJSONWebKeyVerifier(id string, key jwx.PublicKeyJWK) (*JSONWebKeyVerifier, error)

func (JSONWebKeyVerifier) GetKeyID 

func (v JSONWebKeyVerifier) GetKeyID() string

func (JSONWebKeyVerifier) Verify 

func (v JSONWebKeyVerifier) Verify(message, signature []byte) error

Verify attempts to verify a `signature` against a given `message`, returning nil if the verification is successful and an error should it fail.

type JSONWebSignature2020Proof 

type JSONWebSignature2020Proof struct {
	Type               SignatureType `json:"type,omitempty"`
	Created            string        `json:"created,omitempty"`
	JWS                string        `json:"jws,omitempty"`
	ProofPurpose       ProofPurpose  `json:"proofPurpose,omitempty"`
	Challenge          string        `json:"challenge,omitempty"`
	VerificationMethod string        `json:"verificationMethod,omitempty"`
}

func JSONWebSignatureProofFromGenericProof 

func JSONWebSignatureProofFromGenericProof(p crypto.Proof) (*JSONWebSignature2020Proof, error)

func (*JSONWebSignature2020Proof) DecodeJWS 

func (j *JSONWebSignature2020Proof) DecodeJWS() ([]byte, error)

func (*JSONWebSignature2020Proof) GetDetachedJWS 

func (j *JSONWebSignature2020Proof) GetDetachedJWS() string

func (*JSONWebSignature2020Proof) SetDetachedJWS 

func (j *JSONWebSignature2020Proof) SetDetachedJWS(jws string)

func (*JSONWebSignature2020Proof) ToGenericProof 

func (j *JSONWebSignature2020Proof) ToGenericProof() crypto.Proof

type JWSSignatureSuite 

type JWSSignatureSuite struct{}

func (JWSSignatureSuite) CanonicalizationAlgorithm 

func (JWSSignatureSuite) CanonicalizationAlgorithm() string

func (JWSSignatureSuite) Canonicalize 

func (JWSSignatureSuite) Canonicalize(marshaled []byte) (*string, error)

func (JWSSignatureSuite) CreateVerifyHash 

func (j JWSSignatureSuite) CreateVerifyHash(doc map[string]any, proof crypto.Proof, opts *ProofOptions) ([]byte, error)

func (JWSSignatureSuite) Digest 

func (j JWSSignatureSuite) Digest(tbd []byte) ([]byte, error)

func (JWSSignatureSuite) ID 

func (JWSSignatureSuite) ID() string

func (JWSSignatureSuite) Marshal 

func (JWSSignatureSuite) Marshal(data any) ([]byte, error)

func (JWSSignatureSuite) MessageDigestAlgorithm 

func (JWSSignatureSuite) MessageDigestAlgorithm() gocrypto.Hash

func (JWSSignatureSuite) RequiredContexts 

func (JWSSignatureSuite) RequiredContexts() []string

func (JWSSignatureSuite) Sign 

func (j JWSSignatureSuite) Sign(s Signer, p Provable) error

func (JWSSignatureSuite) SignatureAlgorithm 

func (JWSSignatureSuite) SignatureAlgorithm() SignatureType

func (JWSSignatureSuite) Type 

func (JWSSignatureSuite) Type() LDKeyType

func (JWSSignatureSuite) Verify 

func (j JWSSignatureSuite) Verify(v Verifier, p Provable) error

type KTY 

type KTY string

type LDKeyType 

type LDKeyType string
const (
	X25519KeyAgreementKey2020         LDKeyType = "X25519KeyAgreementKey2020"
	Ed25519VerificationKey2020        LDKeyType = "Ed25519VerificationKey2020"
	X25519KeyAgreementKey2019         LDKeyType = "X25519KeyAgreementKey2019"
	Ed25519VerificationKey2018        LDKeyType = "Ed25519VerificationKey2018"
	ECDSASECP256k1VerificationKey2019 LDKeyType = "EcdsaSecp256k1VerificationKey2019"
)

func (LDKeyType) String 

func (ld LDKeyType) String() string

type PayloadFormat 

type PayloadFormat string

type ProofOptions 

type ProofOptions struct {
	// JSON-LD contexts to add to the proof
	Contexts []any

	// Indexes of the credential subject to require be revealed in BBS+ signatures
	RevealIndexes []int
}

type ProofPurpose 

type ProofPurpose string

type Provable 

type Provable interface {
	GetProof() *crypto.Proof
	SetProof(p *crypto.Proof)
}

type SignatureType 

type SignatureType string
const (
	BBSPlusSignatureProof2020 SignatureType = "BbsBlsSignatureProof2020"
)

type Signer 

type Signer interface {
	Sign(tbs []byte) ([]byte, error)

	GetKeyID() string
	GetSignatureType() SignatureType
	GetSigningAlgorithm() string

	SetProofPurpose(purpose ProofPurpose)
	GetProofPurpose() ProofPurpose

	SetPayloadFormat(format PayloadFormat)
	GetPayloadFormat() PayloadFormat
}

type Verifier 

type Verifier interface {
	Verify(message, signature []byte) error
	GetKeyID() string
}

Source Files

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