neoneo-go/pkg/consensus/crypto.go

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package consensus
import (
"crypto/sha256"
"errors"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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)
// privateKey is a wrapper around keys.PrivateKey
// which implements the crypto.PrivateKey interface.
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type privateKey struct {
*keys.PrivateKey
}
// MarshalBinary implements the encoding.BinaryMarshaler interface.
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func (p privateKey) MarshalBinary() (data []byte, err error) {
return p.PrivateKey.Bytes(), nil
}
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
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func (p *privateKey) UnmarshalBinary(data []byte) (err error) {
p.PrivateKey, err = keys.NewPrivateKeyFromBytes(data)
return
}
// Sign implements the dbft's crypto.PrivateKey interface.
func (p *privateKey) Sign(data []byte) ([]byte, error) {
return p.PrivateKey.Sign(data), nil
}
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// publicKey is a wrapper around keys.PublicKey
// which implements the crypto.PublicKey interface.
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type publicKey struct {
*keys.PublicKey
}
// MarshalBinary implements the encoding.BinaryMarshaler interface.
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func (p publicKey) MarshalBinary() (data []byte, err error) {
return p.PublicKey.Bytes(), nil
}
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
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func (p *publicKey) UnmarshalBinary(data []byte) error {
return p.PublicKey.DecodeBytes(data)
}
// Verify implements the crypto.PublicKey interface.
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func (p publicKey) Verify(msg, sig []byte) error {
hash := sha256.Sum256(msg)
if p.PublicKey.Verify(sig, hash[:]) {
return nil
}
return errors.New("error")
}