Blackberry BROWSER VERSION 4.7.0 - FUNDAMENTALS GUIDE Основи - Сторінка 12
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Друкувати сторінкуFundamentals Guide
Communication between the BlackBerry MDS Connection Service and the BlackBerry® Browserconfiguration is always encrypted
with the same Triple DES that is used for all communication between the BlackBerry Enterprise Server and the BlackBerry device.
The BlackBerry MDS Connection Service and the BlackBerry Browser configuration support HTTPS in the following modes:
•
End-to-end mode: HTTP communication is encrypted using SSL or TLS for the entire connection between the BlackBerry
device and the originating content server. Communication over the wireless network between the BlackBerry device and
the BlackBerry MDS Connection Service is also encrypted using Triple DES encryption.
•
Proxy mode: The BlackBerry MDS Connection Service performs SSL handshaking and sets up the SSL connection on behalf
of the BlackBerry device. Communication over the wireless network between the BlackBerry device and the BlackBerry MDS
Connection Service is not encrypted using SSL, but it is encrypted using Triple DES encryption. Communication over the
Internet between the BlackBerry MDS Connection Service and the content server is encrypted using SSL or TLS.
The BlackBerry MDS Connection Service network gateway supports several types of network authentication, including Basic
authentication, NTLM, and Kerberos™.
To restrict wireless network access, administrators can turn the BlackBerry MDS Connection Service on or off for specific users
or user groups. Administrators can also specify policies to control the organization's servers that users can access and the servers
that can open push connections to the BlackBerry MDS Connection Service.
The BlackBerry Internet Service Browsing network gateway
Wireless service providers can use the BlackBerry® Internet Service Browsing network gateway to offer BlackBerry device users
access to the content optimization and compression features provided by the BlackBerry® Infrastructure without using the
BlackBerry® Enterprise Server.
The BlackBerry Internet Service Browsing network gateway acts as a proxy for the BlackBerry® Browser, and makes requests on
behalf of the BlackBerry Browser. The BlackBerry Internet Service Browsing network gateway optimizes the content in the response
to enhance network efficiency and improve display on the smaller screens before it relays the content to the BlackBerry Browser.
The BlackBerry Browser accesses the BlackBerry Internet Service Browsing network gateway using the Internet browser
configuration. The Internet browser configuration communicates with the BlackBerry Internet Service Browsing network gateway
using HTTP/IPPP.
To browse the Internet through the BlackBerry Internet Service Browsing network gateway, users must specify the Internet
browser configuration in the Browser Configuration settings.
To use the Internet browser configuration, a BlackBerry device user requires a service book that is issued to the BlackBerry device
by the BlackBerry® Provisioning System.
BlackBerry Internet Service Browsing security
The BlackBerry® Internet Service Browsing network gateway does not support Triple DES encryption and it is not designed to
access intranets that are protected by firewalls; however, it does permit users to access secure sites using HTTPS. The BlackBerry
Internet Service Browsing network gateway supports SSL encryption.
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Network gateways and BlackBerry Browser configurations