Internet Security
Cryptographic Principles, Algorithms and Protocols
Chapter One
Internetworking and Layered Models
The Internet today is a widespread information infrastructure, but it is inherently an
insecure channel for sending messages. When a message (or packet) is sent from one
Website to another, the data contained in the message are routed through a number of
intermediate sites before reaching its destination. The Internet was designed to accommodate
heterogeneous platforms so that people who are using different computers and
operating systems can communicate. The history of the Internet is complex and involves
many aspects - technological, organisational and community. The Internet concept has
been a big step along the path towards electronic commerce, information acquisition and
community operations.
Early ARPANET researchers accomplished the initial demonstrations of packet-switching
technology. In the late 1970s, the growth of the Internet was recognised and
subsequently a growth in the size of the interested research community was accompanied
by an increased need f ... read full excerpt from Internet Security: Cryptographic Principles, Algorithms and Protocols ebook