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60 lines
1.3 KiB
60 lines
1.3 KiB
package account
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import (
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"errors"
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"fmt"
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"reflect"
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"github.com/tendermint/go-ed25519"
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. "github.com/tendermint/tendermint/binary"
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. "github.com/tendermint/tendermint/common"
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)
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// Signature is a part of Txs and consensus Votes.
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type Signature interface {
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}
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// Types of Signature implementations
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const (
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SignatureTypeEd25519 = byte(0x01)
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)
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//-------------------------------------
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// for binary.readReflect
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func SignatureDecoder(r Unreader, n *int64, err *error) interface{} {
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switch t := PeekByte(r, n, err); t {
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case SignatureTypeEd25519:
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return ReadBinary(SignatureEd25519{}, r, n, err)
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default:
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*err = Errorf("Unknown Signature type %X", t)
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return nil
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}
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}
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var _ = RegisterType(&TypeInfo{
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Type: reflect.TypeOf((*Signature)(nil)).Elem(),
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Decoder: SignatureDecoder,
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})
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//-------------------------------------
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// Implements Signature
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type SignatureEd25519 []byte
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func (sig SignatureEd25519) TypeByte() byte { return SignatureTypeEd25519 }
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func (sig SignatureEd25519) ValidateBasic() error {
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if len(sig) != ed25519.SignatureSize {
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return errors.New("Invalid SignatureEd25519 signature size")
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}
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return nil
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}
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func (sig SignatureEd25519) IsZero() bool {
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return len(sig) == 0
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}
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func (sig SignatureEd25519) String() string {
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return fmt.Sprintf("%X", Fingerprint(sig))
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}
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