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64 lines
1.4 KiB
64 lines
1.4 KiB
package account
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import (
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"errors"
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"io"
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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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// PrivKey is part of PrivAccount and state.PrivValidator.
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type PrivKey interface {
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Sign(msg []byte) Signature
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}
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// Types of PrivKey implementations
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const (
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PrivKeyTypeEd25519 = byte(0x01)
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)
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//-------------------------------------
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// For binary.readReflect
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func PrivKeyDecoder(r io.Reader, n *int64, err *error) interface{} {
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switch t := ReadByte(r, n, err); t {
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case PrivKeyTypeEd25519:
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return ReadBinary(&PrivKeyEd25519{}, r, n, err)
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default:
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*err = Errorf("Unknown PrivKey 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((*PrivKey)(nil)).Elem(),
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Decoder: PrivKeyDecoder,
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})
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//-------------------------------------
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// Implements PrivKey
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type PrivKeyEd25519 struct {
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PubKey []byte
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PrivKey []byte
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}
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func (key PrivKeyEd25519) TypeByte() byte { return PrivKeyTypeEd25519 }
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func (key PrivKeyEd25519) ValidateBasic() error {
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if len(key.PubKey) != ed25519.PublicKeySize {
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return errors.New("Invalid PrivKeyEd25519 pubkey size")
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}
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if len(key.PrivKey) != ed25519.PrivateKeySize {
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return errors.New("Invalid PrivKeyEd25519 privkey size")
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}
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return nil
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}
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func (key PrivKeyEd25519) Sign(msg []byte) Signature {
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signature := ed25519.SignMessage(msg, key.PrivKey, key.PubKey)
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return SignatureEd25519{signature}
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}
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