Blackberry BROWSER VERSION 4.7.0 - FUNDAMENTALS GUIDE Temel Bilgiler - Sayfa 13

Yazılım Blackberry BROWSER VERSION 4.7.0 - FUNDAMENTALS GUIDE için çevrimiçi göz atın veya pdf Temel Bilgiler indirin. Blackberry BROWSER VERSION 4.7.0 - FUNDAMENTALS GUIDE 42 sayfaları.

Sayfayı Yazdır
Fundamentals Guide
The BlackBerry Internet Service Browsing network gateway supports HTTPS in end-to-end mode. HTTP communication is
encrypted using SSL or TLS for the entire connection between the BlackBerry device and the content server.

WAP network gateways

WAP network gateways are hosted by wireless service providers. WAP network gateways must support WTP-level segmentation
and reassembly. Proprietary WAP extensions are not supported.
The BlackBerry® Browser accesses WAP network gateways using the WAP Browser configuration. To browse the Internet through
a WAP network gateway, users must specify the WAP Browser configuration in the Browser Configuration settings.
The WAP Browser configuration supports the following protocols:
Protocol
Description
WAP 1.2.1
The WAP Browser configuration caches the WSP headers to decrease the transmission time of requests.
The WAP Browser configuration sends common HTTP headers to the WAP network gateway when it sets
up the WAP connection. In subsequent requests, the WAP Browser configuration sends only headers
that are specific to the request or that contain values that are different from the initial values.
WAP 2.0
The WAP Browser configuration sends HTTP over wTCP. The BlackBerry Browser sends the HTTP request
to a WAP 2.0 proxy, which then forwards the request to the server. The WAP network gateway determines
the content types that the BlackBerry Browser can access. For example, some WAP network gateways
might convert HTML content into a series of WML pages, or impose a limit on the size of content that
the BlackBerry Browser can request.
For more information about WAP protocols, visit
WAP network gateway security
WAP 1.2.1 and WAP 2.0 protocols provide different security models.
Protocol
WAP 1.2.1
www.wapforum.org
Description
The WAP 1.2.1 protocol uses WTLS to access secure WAP services, including WTLS Class 1 (encryption
only, no authentication) and WTLS Class 2 (encryption and server authentication). The WAP Browser
configuration supports both DES (40-bit and 56-bit) and RC5 encryption (64-bit, 128-bit, and 168-
bit). Communication over the wireless network between the BlackBerry®device and the WAP network
gateway is encrypted using WTLS. Communication over the Internet between the WAP network
gateway and the web server is encrypted using SSL or TLS.
Network gateways and BlackBerry Browser configurations
and read the specification WAP-203-WSP-20000504-a.
11