code: public String decrypt(String cipherText) throws MissingParameterException {
  
  		if (StringUtils.isBlank(cipherText)) {
  			throw new MissingParameterException("Missing parameter: cipherText");
  		}
  
  		return stringEncryptor.decrypt(cipherText);
  	}
docs: Method which will decrypt a string.
  
  @param cipherText
  Encrypted text to be decrypted.
  @return
  @throws MissingParameterException