func EncodeCertPEM(cert *x509.Certificate) []byte {
	block := pem.Block{
		Type:  CertificateBlockType,
		Bytes: cert.Raw,
	}
	return pem.EncodeToMemory(&block)
}

// EncodeCertBundlePEM returns PEM-endcoded certificate bundle
func EncodeCertBundlePEM(certs []*x509.Certificate) ([]byte, error) {
	buf := bytes.Buffer{}

	block := pem.Block{
		Type: CertificateBlockType,
	}

	for _, cert := range certs {