예제 #1
0
func generateCertificate(signer crypto.Signer, gun string, startTime, endTime time.Time) (*x509.Certificate, error) {
	template, err := utils.NewCertificate(gun, startTime, endTime)
	if err != nil {
		return nil, fmt.Errorf("failed to create the certificate template for: %s (%v)", gun, err)
	}

	derBytes, err := x509.CreateCertificate(rand.Reader, template, template, signer.Public(), signer)
	if err != nil {
		return nil, fmt.Errorf("failed to create the certificate for: %s (%v)", gun, err)
	}

	cert, err := x509.ParseCertificate(derBytes)
	if err != nil {
		return nil, fmt.Errorf("failed to parse the certificate for key: %s (%v)", gun, err)
	}

	return cert, nil
}
예제 #2
0
// addECDSAKey adds a key to the yubikey
func addECDSAKey(
	ctx IPKCS11Ctx,
	session pkcs11.SessionHandle,
	privKey data.PrivateKey,
	pkcs11KeyID []byte,
	passRetriever notary.PassRetriever,
	role string,
) error {
	logrus.Debugf("Attempting to add key to yubikey with ID: %s", privKey.ID())

	err := login(ctx, session, passRetriever, pkcs11.CKU_SO, SOUserPin)
	if err != nil {
		return err
	}
	defer ctx.Logout(session)

	// Create an ecdsa.PrivateKey out of the private key bytes
	ecdsaPrivKey, err := x509.ParseECPrivateKey(privKey.Private())
	if err != nil {
		return err
	}

	ecdsaPrivKeyD := ensurePrivateKeySize(ecdsaPrivKey.D.Bytes())

	// Hard-coded policy: the generated certificate expires in 10 years.
	startTime := time.Now()
	template, err := utils.NewCertificate(role, startTime, startTime.AddDate(10, 0, 0))
	if err != nil {
		return fmt.Errorf("failed to create the certificate template: %v", err)
	}

	certBytes, err := x509.CreateCertificate(rand.Reader, template, template, ecdsaPrivKey.Public(), ecdsaPrivKey)
	if err != nil {
		return fmt.Errorf("failed to create the certificate: %v", err)
	}

	certTemplate := []*pkcs11.Attribute{
		pkcs11.NewAttribute(pkcs11.CKA_CLASS, pkcs11.CKO_CERTIFICATE),
		pkcs11.NewAttribute(pkcs11.CKA_VALUE, certBytes),
		pkcs11.NewAttribute(pkcs11.CKA_ID, pkcs11KeyID),
	}

	privateKeyTemplate := []*pkcs11.Attribute{
		pkcs11.NewAttribute(pkcs11.CKA_CLASS, pkcs11.CKO_PRIVATE_KEY),
		pkcs11.NewAttribute(pkcs11.CKA_KEY_TYPE, pkcs11.CKK_ECDSA),
		pkcs11.NewAttribute(pkcs11.CKA_ID, pkcs11KeyID),
		pkcs11.NewAttribute(pkcs11.CKA_EC_PARAMS, []byte{0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07}),
		pkcs11.NewAttribute(pkcs11.CKA_VALUE, ecdsaPrivKeyD),
		pkcs11.NewAttribute(pkcs11.CKA_VENDOR_DEFINED, yubikeyKeymode),
	}

	_, err = ctx.CreateObject(session, certTemplate)
	if err != nil {
		return fmt.Errorf("error importing: %v", err)
	}

	_, err = ctx.CreateObject(session, privateKeyTemplate)
	if err != nil {
		return fmt.Errorf("error importing: %v", err)
	}

	return nil
}