Change the symmetric key encryption algorithm that

the BlackBerry Enterprise Solution uses

1. In the BlackBerry Administration Service, on the Servers and components menu, expand BlackBerry Solution
topology > BlackBerry Domain > Component view > BlackBerry Enterprise Server.
2. Click the instance that you want to change.
3. Click Edit instance.
4. In the Security information section, in the Encryption algorithm drop-down list, click the encryption algorithm that
you want the BlackBerry Enterprise Solution to use.
5. Click Save All.
After you finish: Re-activate all of the BlackBerry devices that are located in the BlackBerry Domain so that users can send
and receive email messages on their BlackBerry devices.
Related information
Assigning BlackBerry devices to user accounts, 92
Managing device access to the BlackBerry
Enterprise Server
You can use the Enterprise Service Policy to control which BlackBerry devices can connect to a BlackBerry Enterprise
Server. By default, after you turn on the Enterprise Service Policy, the BlackBerry Enterprise Server permits connections
from any device that you previously associated with the BlackBerry Enterprise Server. The BlackBerry Enterprise Server
also prevents connections from any device that you associate with the BlackBerry Enterprise Server after you turn on the
Enterprise Service Policy.
You can configure an allowed list to determine which devices can access a BlackBerry Enterprise Server. A device that
meets the criteria that you specify in the allowed list can associate with the BlackBerry Enterprise Server when the device
activates over the wireless network.
You can define the following types of criteria:
• specific device PINs
• range of device PINs
• specific manufacturers
• specific device models
Administration Guide Configuring security options
59