
1. Correctly replace the AES data source if IV changes. 2. Check the largest timestamp for being equal to MIN_VALUE, and handle this case properly. 3. Clean up AES data source a little. Issue: #162
1. Correctly replace the AES data source if IV changes. 2. Check the largest timestamp for being equal to MIN_VALUE, and handle this case properly. 3. Clean up AES data source a little. Issue: #162