When storing license information on the end user system using QlmLicense.StoreKeys or QlmLicense.StoreCookie, you can select whether to encrypt the information on disk.
To do so, set the EncryptionAlgorigthm property to Aes.
Example:
LicenseValidator lv = new LicenseValidator (settingsXmlFile);
lv.QlmLicenseObject.EncryptionAlgorithm = QlmEncryptionAlgorigthm.Aes;
lv.QlmLicenseObject.StoreKeys (...);