* com.illuminati.mailvault.service.BusinessService#send(java.lang.String,
* java.lang.String, java.lang.String, java.lang.String)
*/
public String send(String messageKey, String fromMail, String toMail, String question, String ans, Timestamp timeToLive, Float version) {
String messageId = null;
ElGamalPublicKey puk = getUserDao().getPublicKey(fromMail);
ElGamalPrivateKey pvk = getUserDao().getPrivateKey(fromMail);
byte[] hashedAnswer = null;
if (version == 0.0F) {
String answer = Normalizer.normalize(ans, Normalizer.Form.NFD);
hashedAnswer = Util.hash(answer);