common

Documentation

Index

• Variables
• func CalculateProofIdentifier(proof *gabi.ProofD) []byte
• func CalculateTimeBasedChallenge(unixTimeSeconds int64) *big.Int
• func ComputeAttributeInts(attributeTypes []string, attributes [][]byte) ([]*big.Int, error)
• func DebugSerializableStruct(s interface{})
• func DecodeAttributeInt(a *big.Int) []byte
• func DecodeMetadataAttribute(metadataAttribute *big.Int) (credentialVersion int, issuerPkId string, attributeTypes []string, err error)
• func GenerateNonce() *big.Int
• func MaxCores() int
• func RandomBigInt(numBits uint) *big.Int
• type CreateCredentialMessage
• type CredentialMetadataSerialization
• type FindIssuerPkFunc
• type PrepareIssueMessage
• type ProofSerializationV2

Variables

var AttributeTypes = map[int][]string{
	2: []string{
		"isSpecimen",
		"isPaperProof",
		"validFrom",
		"validForHours",
		"firstNameInitial",
		"lastNameInitial",
		"birthDay",
		"birthMonth",
	},
	3: []string{
		"isSpecimen",
		"isPaperProof",
		"validFrom",
		"validForHours",
		"firstNameInitial",
		"lastNameInitial",
		"birthDay",
		"birthMonth",
		"category",
	},
}

var BigOne = big.NewInt(1)

var GabiSystemParameters = gabi.DefaultSystemParameters[2048]

var ProofVersionByte byte = '2'

Functions

func CalculateProofIdentifier

func CalculateProofIdentifier(proof *gabi.ProofD) []byte

CalculateProofIdentifier calculates the sha256 digest of ProofD.C, truncated to 128 bits

func CalculateTimeBasedChallenge

func CalculateTimeBasedChallenge(unixTimeSeconds int64) *big.Int

func ComputeAttributeInts

func ComputeAttributeInts(attributeTypes []string, attributes [][]byte) ([]*big.Int, error)

func DebugSerializableStruct

func DebugSerializableStruct(s interface{})

func DecodeAttributeInt

func DecodeAttributeInt(a *big.Int) []byte

func DecodeMetadataAttribute

func DecodeMetadataAttribute(metadataAttribute *big.Int) (credentialVersion int, issuerPkId string, attributeTypes []string, err error)

func GenerateNonce

func GenerateNonce() *big.Int

func MaxCores

func MaxCores() int

MaxCores returns the number of cores in the current system

func RandomBigInt

func RandomBigInt(numBits uint) *big.Int

RandomBigInt returns a random big integer value in the range [0,(2^numBits)-1], inclusive.

Types

type CreateCredentialMessage

type CreateCredentialMessage struct {
	IssueSignatureMessage *gabi.IssueSignatureMessage `json:"issueSignatureMessage"`
	Attributes            [][]byte                    `json:"attributes"`
}

type CredentialMetadataSerialization

type CredentialMetadataSerialization struct {
	// CredentialVersion identifies the credential version, and is always a single byte
	CredentialVersion []byte

	// IssuerPkId identifies the public key to use for verification
	IssuerPkId string
}

type FindIssuerPkFunc

type FindIssuerPkFunc func(kid string) (pk *gabi.PublicKey, err error)

type PrepareIssueMessage

type PrepareIssueMessage struct {
	IssuerPkId       string   `json:"issuerPkId"`
	IssuerNonce      *big.Int `json:"issuerNonce"`
	CredentialAmount int      `json:"credentialAmount"`
}

type ProofSerializationV2

type ProofSerializationV2 struct {
	DisclosureTimeSeconds int64
	C                     *gobig.Int
	A                     *gobig.Int
	EResponse             *gobig.Int
	VResponse             *gobig.Int
	AResponse             *gobig.Int
	ADisclosed            []*gobig.Int
}