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Constants ¶
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Variables ¶
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var (
PrivateKeySizeErr = errors.New("private key length does not equal expected key length")
)
Functions ¶
func Hash ¶
func Hash(hp HashPolicy, s *big.Int) *big.Int
Hash returns a hash of a big integer given a hash policy.
func Verify ¶
func Verify(sp SignaturePolicy, hp HashPolicy, publicKey []byte, message []byte, signature []byte) bool
Verify returns true if the given signature was generated using the given public key, message, signature policy, and hash policy.
Types ¶
type HashPolicy ¶
HashPolicy defines how to create a cryptographic hash.
type KeyPair ¶
KeyPair represents a private and public key pair.
func FromPrivateKey ¶
func FromPrivateKey(sp SignaturePolicy, privateKey string) (*KeyPair, error)
FromPrivateKey returns a KeyPair given a signature policy and private key.
func (*KeyPair) PrivateKeyHex ¶
PrivateKeyHex returns the hex representation of the private key.
func (*KeyPair) PublicKeyHex ¶
PublicKeyHex returns the hex representation of the public key.
func (*KeyPair) Sign ¶
func (k *KeyPair) Sign(sp SignaturePolicy, hp HashPolicy, message []byte) ([]byte, error)
Sign returns a cryptographic signature that is a signed hash of the message.
type SignaturePolicy ¶
type SignaturePolicy interface {
GenerateKeys() ([]byte, []byte, error)
PrivateKeySize() int
PrivateToPublic(privateKey []byte) ([]byte, error)
PublicKeySize() int
Sign(privateKey []byte, message []byte) []byte
RandomKeyPair() *KeyPair
Verify(publicKey []byte, message []byte, signature []byte) bool
}
SignaturePolicy defines the creation and validation of a cryptographic signature.
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