// UnmarshalPrivateKey converts a protobuf serialized private key into its // representative object func UnmarshalPrivateKey(data []byte) (PrivKey, error) { pmes := new(pb.PrivateKey) err := proto.Unmarshal(data, pmes) if err != nil { return nil, err } switch pmes.GetType() { case pb.KeyType_RSA: return UnmarshalRsaPrivateKey(pmes.GetData()) default: return nil, ErrBadKeyType } }