74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package account
|
|
|
|
import (
|
|
"errors"
|
|
|
|
"github.com/tendermint/go-ed25519"
|
|
. "github.com/tendermint/tendermint/binary"
|
|
)
|
|
|
|
// PubKey is part of Account and Validator.
|
|
type PubKey interface {
|
|
Address() []byte
|
|
VerifyBytes(msg []byte, sig Signature) bool
|
|
TypeByte() byte
|
|
}
|
|
|
|
// Types of PubKey implementations
|
|
const (
|
|
PubKeyTypeNil = byte(0x00)
|
|
PubKeyTypeEd25519 = byte(0x01)
|
|
)
|
|
|
|
// for binary.readReflect
|
|
var _ = RegisterInterface(
|
|
struct{ PubKey }{},
|
|
ConcreteType{PubKeyNil{}},
|
|
ConcreteType{PubKeyEd25519{}},
|
|
)
|
|
|
|
//-------------------------------------
|
|
|
|
// Implements PubKey
|
|
type PubKeyNil struct{}
|
|
|
|
func (key PubKeyNil) TypeByte() byte { return PubKeyTypeNil }
|
|
|
|
func (key PubKeyNil) Address() []byte {
|
|
panic("PubKeyNil has no address")
|
|
}
|
|
|
|
func (key PubKeyNil) VerifyBytes(msg []byte, sig_ Signature) bool {
|
|
panic("PubKeyNil cannot verify messages")
|
|
}
|
|
|
|
//-------------------------------------
|
|
|
|
// Implements PubKey
|
|
type PubKeyEd25519 []byte
|
|
|
|
func (key PubKeyEd25519) TypeByte() byte { return PubKeyTypeEd25519 }
|
|
|
|
// TODO: Or should this just be BinaryRipemd160(key)? (The difference is the TypeByte.)
|
|
func (key PubKeyEd25519) Address() []byte { return BinaryRipemd160([]byte(key)) }
|
|
|
|
func (key PubKeyEd25519) ValidateBasic() error {
|
|
if len(key) != ed25519.PublicKeySize {
|
|
return errors.New("Invalid PubKeyEd25519 key size")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (key PubKeyEd25519) VerifyBytes(msg []byte, sig_ Signature) bool {
|
|
sig, ok := sig_.(SignatureEd25519)
|
|
if !ok {
|
|
panic("PubKeyEd25519 expects an SignatureEd25519 signature")
|
|
}
|
|
v1 := &ed25519.Verify{
|
|
Message: msg,
|
|
PubKey: key,
|
|
Signature: sig,
|
|
}
|
|
return ed25519.VerifyBatch([]*ed25519.Verify{v1})
|
|
}
|