/**
  * Generate a pseudo-unique activation OTP. Technically, the result is a string with 5+5 random
  * Base32 characters (separated with the "-" character).
  *
  * @return A new activation OTP.
  */
 public String generateActivationOTP() {
   return identifierGenerator.generateActivationOTP();
 }
 /**
  * Generate a pseudo-unique short activation ID. Technically, the result is a string with 5+5
  * random Base32 characters (separated with the "-" character). PowerAuth Server implementation
  * should validate that this identifier is unique among all activation records in CREATED or
  * OTP_USED states, so that there are no collisions in activations.
  *
  * @return A new short activation ID.
  */
 public String generateActivationIdShort() {
   return identifierGenerator.generateActivationIdShort();
 }