September 2003
Intermediate to advanced
944 pages
33h 46m
English
Content preview from Practical Web Technologies
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20.4. Secure Sockets Layer (SSL) and OpenSSL
20.4.1. What is SSL and how does it work?
SSL is a communications protocol layer which may be placed between your TCP/IP and HTTP suites. In effect, it can intercept your Web traffic and provide security between the browser and server. The encryption or cryptography used in SSL guarantees secure communications in an insecure environment. More importantly, all security operations are transparent to both ends.
The first practical SSL protocol known as SSL v2.0 was implemented by Netscape and supported by the NS 1.x/2.x and IE 3.x browsers. This version of SSL is mainly vendor specific and with limited features. Although not a standard, the next version of SSL (SSL v3.0) attracted much more attention ...
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