ecdsa

package

v0.3.0 Latest Latest Go to latest Published: Oct 5, 2023 License: Apache-2.0 Imports: 17 Imported by: 0

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Repository

github.com/hyperledger-labs/fabric-smart-client

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Documentation ¶

Index ¶

func GetCurveHalfOrdersAt(c elliptic.Curve) *big.Int
func IsLowS(k *ecdsa.PublicKey, s *big.Int) (bool, error)
func NewIdentityFromBytes(raw []byte) (view.Identity, driver.Verifier, error)
func NewIdentityFromPEMCert(raw []byte) (view.Identity, driver.Verifier, error)
func NewSigner() (view.Identity, driver.Signer, driver.Verifier, error)
func NewSignerFromPEM(raw []byte) (driver.Signer, error)
func NewTwoPartyCollectEphemeralKeysView(other view.Identity) *twoPartyCollectEphemeralKeyView
func NewTwoPartyEphemeralKeyResponderView() *twoPartyEphemeralKeyResponderView
type Signature
type Signer
- func (e *Signer) Public() crypto.PublicKey
- func (e *Signer) Sign(message []byte) ([]byte, error)
type Verifier
- func (d Verifier) Verify(message, sigma []byte) error

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func GetCurveHalfOrdersAt ¶

func GetCurveHalfOrdersAt(c elliptic.Curve) *big.Int

func NewIdentityFromBytes ¶

func NewIdentityFromBytes(raw []byte) (view.Identity, driver.Verifier, error)

func NewIdentityFromPEMCert ¶

func NewIdentityFromPEMCert(raw []byte) (view.Identity, driver.Verifier, error)

func NewSigner ¶

func NewSigner() (view.Identity, driver.Signer, driver.Verifier, error)

func NewSignerFromPEM ¶

func NewSignerFromPEM(raw []byte) (driver.Signer, error)

func NewTwoPartyCollectEphemeralKeysView ¶

func NewTwoPartyCollectEphemeralKeysView(other view.Identity) *twoPartyCollectEphemeralKeyView

func NewTwoPartyEphemeralKeyResponderView ¶

func NewTwoPartyEphemeralKeyResponderView() *twoPartyEphemeralKeyResponderView

Types ¶

type Signature ¶

type Signature struct {
	R, S *big.Int
}

type Signer ¶

type Signer struct {
	PrivateKey *ecdsa.PrivateKey
}

Signer implements the crypto.Signer interface for ECDSA keys. The Sign method ensures signatures are created with Low S values since Fabric normalizes all signatures to Low S. See https://github.com/bitcoin/bips/blob/master/bip-0146.mediawiki#low_s for more detail.

func (*Signer) Public ¶

func (e *Signer) Public() crypto.PublicKey

Public returns the ecdsa.PublicKey associated with PrivateKey.

func (*Signer) Sign ¶

func (e *Signer) Sign(message []byte) ([]byte, error)

Sign signs the digest and ensures that signatures use the Low S value.

type Verifier ¶

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

func (Verifier) Verify ¶

func (d Verifier) Verify(message, sigma []byte) error

Source Files ¶

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