5.5. Summary
Security is an important element in the design of e-business sites. However, as most things in life, it isn't free. Performance is the price to be paid for providing authentication, confidentiality, integrity, and non-repudiation to transactions carried out over the Web. This chapter covered the basic principles of security, symmetric and public key encryption, digital signatures, and certificates.
A description of the Transport Layer Security (TLS) protocol was provided along with several numerical examples that illustrated the tradeoffs between performance and security. This tradeoff is becoming more and more important as the demand for secure transactions increases at a very fast rate. The scalability of various distributed authentication ...
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