Blackberry ENTERPRISE SOLUTION SECURITY - ENTERPRISE SOLUTION - SECURITY TECHNICAL Uživatelský manuál stáhnout pdf (Strana 57)

Process flow: Viewing an attachment through a link

1. A user clicks the Get Link menu item to view an attachment on a BlackBerry® device.

2. The BlackBerry device sends the request to the BlackBerry® Enterprise Server over port 3101.

3. The BlackBerry Dispatcher sends the request to the BlackBerry MDS Connection Service over port 3200.

4. The BlackBerry MDS Connection Service creates an HTTP session for the user and sends the request to the web server.

The BlackBerry MDS Connection Service retrieves the requested content and sends it to the BlackBerry Attachment

Service.

5. The BlackBerry Attachment Service extracts the content, layout, appearance, and navigation information from the

attachment, and organizes, stores, and links the information in a proprietary DOM in a binary XML style.

6. The BlackBerry Attachment Service formats the attachment for the BlackBerry device and converts it to UCS format.

The formatting is based on the request for content (for example, page and paragraph information, or search words) and

the available BlackBerry device information (for example, screen size, display, or available space).

7. The BlackBerry Attachment Service sends the converted attachment to the BlackBerry MDS Connection Service using

HTTP.

8. The BlackBerry MDS Connection Service sends the first 250 KB of content to the BlackBerry Dispatcher over port 3200.

9. The BlackBerry Dispatcher compresses the content, encrypts it with the master encryption key of the BlackBerry device,

and sends the content to the BlackBerry Router.

10. The BlackBerry Router sends the content to the BlackBerry device.

11. The BlackBerry device uses its master encryption key to decrypt and decompress the attachment so that the user can

view it.

12. The user views the attachment on the BlackBerry device using the browser plug-in for the attachment viewer.

The attachment viewer processes 3 KB at a time.

Organizer data process flows

Feature and Technical Overview

Organizer data process flows

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Blackberry ENTERPRISE SOLUTION SECURITY - ENTERPRISE SOLUTION - SECURITY TECHNICAL Uživatelský manuál Strana 57