pkcs8.go

// +build go1.10

package userenckey

import (
	"crypto/ecdsa"
	"crypto/x509"
	"encoding/pem"
)

// Encode a private key to PEM-encoded PKCS8.
func encodePrivateKeyToPEM(priv *ecdsa.PrivateKey) ([]byte, error) {
	der, err := x509.MarshalPKCS8PrivateKey(priv)
	if err != nil {
		return nil, err
	}
	return pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: der}), nil
}