String encEkSha1 = Base64.encode(ekSha1);
context.setExtraneousProperty("EncryptedKeySHA1", encEkSha1);
if(x509Sibling == null ){
if(x509TokenElement == null){
_secHeader.insertHeaderBlockElement(se);
}else{
_secHeader.appendChild(se);
}
}else{
_secHeader.insertBefore(se,x509Sibling);