func hasValue(d map[string][]byte, keys ...string) bool {
	for _, k := range keys {
		v := d[k]
		if len(v) == 0 {
			return false
		}
	}
	return true
}

// ExtractCertInfo extracts server key, certificate, and OCSP staple
func ExtractCertInfo(scrt *v1.Secret) (certInfo *credentials.CertInfo, err error) {
	ret := &credentials.CertInfo{}
	if hasValue(scrt.Data, GenericScrtCert, GenericScrtKey) {