You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
137 lines
3.3 KiB
137 lines
3.3 KiB
package crypto
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
|
|
. "github.com/tendermint/tmlibs/common"
|
|
data "github.com/tendermint/go-wire/data"
|
|
"github.com/tendermint/go-wire"
|
|
)
|
|
|
|
func SignatureFromBytes(sigBytes []byte) (sig Signature, err error) {
|
|
err = wire.ReadBinaryBytes(sigBytes, &sig)
|
|
return
|
|
}
|
|
|
|
//----------------------------------------
|
|
|
|
type Signature struct {
|
|
SignatureInner `json:"unwrap"`
|
|
}
|
|
|
|
// DO NOT USE THIS INTERFACE.
|
|
// You probably want to use Signature.
|
|
type SignatureInner interface {
|
|
AssertIsSignatureInner()
|
|
Bytes() []byte
|
|
IsZero() bool
|
|
String() string
|
|
Equals(Signature) bool
|
|
Wrap() Signature
|
|
}
|
|
|
|
func (sig Signature) MarshalJSON() ([]byte, error) {
|
|
return sigMapper.ToJSON(sig.SignatureInner)
|
|
}
|
|
|
|
func (sig *Signature) UnmarshalJSON(data []byte) (err error) {
|
|
parsed, err := sigMapper.FromJSON(data)
|
|
if err == nil && parsed != nil {
|
|
sig.SignatureInner = parsed.(SignatureInner)
|
|
}
|
|
return
|
|
}
|
|
|
|
// Unwrap recovers the concrete interface safely (regardless of levels of embeds)
|
|
func (sig Signature) Unwrap() SignatureInner {
|
|
pk := sig.SignatureInner
|
|
for wrap, ok := pk.(Signature); ok; wrap, ok = pk.(Signature) {
|
|
pk = wrap.SignatureInner
|
|
}
|
|
return pk
|
|
}
|
|
|
|
func (sig Signature) Empty() bool {
|
|
return sig.SignatureInner == nil
|
|
}
|
|
|
|
var sigMapper = data.NewMapper(Signature{}).
|
|
RegisterImplementation(SignatureEd25519{}, NameEd25519, TypeEd25519).
|
|
RegisterImplementation(SignatureSecp256k1{}, NameSecp256k1, TypeSecp256k1)
|
|
|
|
//-------------------------------------
|
|
|
|
var _ SignatureInner = SignatureEd25519{}
|
|
|
|
// Implements Signature
|
|
type SignatureEd25519 [64]byte
|
|
|
|
func (sig SignatureEd25519) AssertIsSignatureInner() {}
|
|
|
|
func (sig SignatureEd25519) Bytes() []byte {
|
|
return wire.BinaryBytes(Signature{sig})
|
|
}
|
|
|
|
func (sig SignatureEd25519) IsZero() bool { return len(sig) == 0 }
|
|
|
|
func (sig SignatureEd25519) String() string { return fmt.Sprintf("/%X.../", Fingerprint(sig[:])) }
|
|
|
|
func (sig SignatureEd25519) Equals(other Signature) bool {
|
|
if otherEd, ok := other.Unwrap().(SignatureEd25519); ok {
|
|
return bytes.Equal(sig[:], otherEd[:])
|
|
} else {
|
|
return false
|
|
}
|
|
}
|
|
|
|
func (sig SignatureEd25519) MarshalJSON() ([]byte, error) {
|
|
return data.Encoder.Marshal(sig[:])
|
|
}
|
|
|
|
func (sig *SignatureEd25519) UnmarshalJSON(enc []byte) error {
|
|
var ref []byte
|
|
err := data.Encoder.Unmarshal(&ref, enc)
|
|
copy(sig[:], ref)
|
|
return err
|
|
}
|
|
|
|
func (sig SignatureEd25519) Wrap() Signature {
|
|
return Signature{sig}
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
var _ SignatureInner = SignatureSecp256k1{}
|
|
|
|
// Implements Signature
|
|
type SignatureSecp256k1 []byte
|
|
|
|
func (sig SignatureSecp256k1) AssertIsSignatureInner() {}
|
|
|
|
func (sig SignatureSecp256k1) Bytes() []byte {
|
|
return wire.BinaryBytes(Signature{sig})
|
|
}
|
|
|
|
func (sig SignatureSecp256k1) IsZero() bool { return len(sig) == 0 }
|
|
|
|
func (sig SignatureSecp256k1) String() string { return fmt.Sprintf("/%X.../", Fingerprint(sig[:])) }
|
|
|
|
func (sig SignatureSecp256k1) Equals(other Signature) bool {
|
|
if otherEd, ok := other.Unwrap().(SignatureSecp256k1); ok {
|
|
return bytes.Equal(sig[:], otherEd[:])
|
|
} else {
|
|
return false
|
|
}
|
|
}
|
|
func (sig SignatureSecp256k1) MarshalJSON() ([]byte, error) {
|
|
return data.Encoder.Marshal(sig)
|
|
}
|
|
|
|
func (sig *SignatureSecp256k1) UnmarshalJSON(enc []byte) error {
|
|
return data.Encoder.Unmarshal((*[]byte)(sig), enc)
|
|
}
|
|
|
|
func (sig SignatureSecp256k1) Wrap() Signature {
|
|
return Signature{sig}
|
|
}
|