General Overview of Certificate Usage
The fantastic growth of Internet-connected systems in the world in general and in large enterprise networks specifically brings a growing need for greater security. Using certificates in your network architecture can simplify many aspects of authentication, privacy, and authorization. To begin, I give you a simplified example of a small corporate network, and then I show how certificates can greatly reduce the overhead of managing users, both internally and externally.
A wide array of applications on the Internet today use digital certificates. A few examples are
SSL communications
S/MIME email security
IPSec
PKI systems for key distribution
Single sign-on authentication services
Signing code, such as signed Java ...
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