ecdsa

package

v0.1.0 Latest Latest Go to latest Published: Sep 21, 2019 License: Apache-2.0 Imports: 13 Imported by: 0

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Repository

github.com/abchain/hyperledger

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Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func GetEC(curveType int32) (elliptic.Curve, error)
func Secp256k1() elliptic.Curve
type KeyDerivation
type KoblitzCurve
type PrivateKey
type PublicKey

Constants ¶

View Source

const (
	SECP256K1 int32 = iota + 1
	ECP256_FIPS186
	PUBLICKEY_FINGERPRINT_LEN = crypto.PUBLICKEY_FINGERPRINT_LEN
)

View Source

const (
	PublicKeyCompressedLength = 33
)

Variables ¶

View Source

var (
	DefaultCurveType = ECP256_FIPS186
	DefaultVersion   = crypto.DefaultVersion
	DefaultFactory   = cryptoFactory{}
)

Functions ¶

func GetEC ¶

func GetEC(curveType int32) (elliptic.Curve, error)

func Secp256k1 ¶

func Secp256k1() elliptic.Curve

Types ¶

type KeyDerivation ¶

type KeyDerivation struct {
	// underlying root private key fingerprint
	RootFingerPrint []byte
	// index of child private key
	Index *big.Int
	// chaincode
	Chaincode []byte
}

func (*KeyDerivation) FromKDMessage ¶

func (kd *KeyDerivation) FromKDMessage(msg *protos.KeyDerived)

func (*KeyDerivation) GenIntermediary ¶

func (kd *KeyDerivation) GenIntermediary(pub *ecdsa.PublicKey, index *big.Int) ([]byte, *KeyDerivation, error)

func (*KeyDerivation) GetIndex ¶

func (kd *KeyDerivation) GetIndex() *big.Int

func (*KeyDerivation) GetRootFingerPrint ¶

func (kd *KeyDerivation) GetRootFingerPrint() []byte

func (*KeyDerivation) ToKDMessage ¶

func (kd *KeyDerivation) ToKDMessage() *protos.KeyDerived

type KoblitzCurve ¶

type KoblitzCurve struct {
	P       *big.Int // the order of the underlying field
	N       *big.Int // the order of the base point
	B       *big.Int // the constant of the KoblitzCurve equation
	Gx, Gy  *big.Int // (x,y) of the base point
	BitSize int      // the size of the underlying field
}

A Koblitz Curve with a=0.

func (*KoblitzCurve) Add ¶

func (curve *KoblitzCurve) Add(x1, y1, x2, y2 *big.Int) (*big.Int, *big.Int)

func (*KoblitzCurve) Double ¶

func (curve *KoblitzCurve) Double(x1, y1 *big.Int) (*big.Int, *big.Int)

func (*KoblitzCurve) IsOnCurve ¶

func (curve *KoblitzCurve) IsOnCurve(x, y *big.Int) bool

func (*KoblitzCurve) Params ¶

func (curve *KoblitzCurve) Params() *elliptic.CurveParams

func (*KoblitzCurve) ScalarBaseMult ¶

func (curve *KoblitzCurve) ScalarBaseMult(k []byte) (*big.Int, *big.Int)

func (*KoblitzCurve) ScalarMult ¶

func (curve *KoblitzCurve) ScalarMult(Bx, By *big.Int, k []byte) (*big.Int, *big.Int)

type PrivateKey ¶

type PrivateKey struct {
	Version int32

	// Curve type
	CurveType int32

	// underlying private key
	Key *ecdsa.PrivateKey

	*KeyDerivation
}

func NewDefaultPrivatekey ¶

func NewDefaultPrivatekey() (*PrivateKey, error)

func NewPrivatekey ¶

func NewPrivatekey(curveType int32) (*PrivateKey, error)

func NewSECP256K1Privkey ¶

func NewSECP256K1Privkey(s string) *PrivateKey

func (*PrivateKey) Child ¶

func (priv *PrivateKey) Child(index *big.Int) (crypto.Hierarchical, error)

func (*PrivateKey) ChildPublic ¶

func (priv *PrivateKey) ChildPublic(index *big.Int) (*PublicKey, error)

func (*PrivateKey) FromPBMessage ¶

func (priv *PrivateKey) FromPBMessage(msg proto.Message) error

func (*PrivateKey) IsEqual ¶

func (priv *PrivateKey) IsEqual(p interface{}) bool

func (*PrivateKey) IsEqualForTest ¶

func (priv *PrivateKey) IsEqualForTest(otherPriv *PrivateKey) bool

func (*PrivateKey) PBMessage ¶

func (priv *PrivateKey) PBMessage() proto.Message

func (*PrivateKey) Public ¶

func (priv *PrivateKey) Public() crypto.Verifier

func (*PrivateKey) Sign ¶

func (priv *PrivateKey) Sign(hash []byte) (sig *protos.Signature, err error)

func (*PrivateKey) String ¶

func (priv *PrivateKey) String() string

func (*PrivateKey) ToECDSA ¶

func (priv *PrivateKey) ToECDSA() *ecdsa.PrivateKey

deprecate APIs

type PublicKey ¶

type PublicKey struct {
	Version int32

	// Curve type
	CurveType int32

	// underlying public key
	Key *ecdsa.PublicKey

	*KeyDerivation
}

func (*PublicKey) Child ¶

func (pub *PublicKey) Child(index *big.Int) (crypto.Hierarchical, error)

func (*PublicKey) Digest ¶

func (pub *PublicKey) Digest() []byte

func (*PublicKey) FromPBMessage ¶

func (pub *PublicKey) FromPBMessage(msg proto.Message) error

func (*PublicKey) IsEqual ¶

func (pub *PublicKey) IsEqual(p interface{}) bool

func (*PublicKey) IsEqualForTest ¶

func (pub *PublicKey) IsEqualForTest(otherPub *PublicKey) bool

func (*PublicKey) PBMessage ¶

func (pub *PublicKey) PBMessage() proto.Message

func (*PublicKey) Recover ¶

func (pub *PublicKey) Recover(sig *protos.Signature) error

func (*PublicKey) String ¶

func (pub *PublicKey) String() string

func (*PublicKey) ToECDSA ¶

func (pub *PublicKey) ToECDSA() *ecdsa.PublicKey

func (*PublicKey) Verify ¶

func (pub *PublicKey) Verify(hash []byte, sig *protos.Signature) bool

Source Files ¶

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