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Many people do not realise that mathematics provides the foundation for the
devices we use to handle information in the modern world. Most of those who
do know probably think that the parts of mathematics involved are quite ‘classical’,
such as Fourier analysis and differential equations. In fact, a great deal
of the mathematical background is part of what used to be called ‘pure’ mathematics,
indicating that it was created in order to deal with problems that
originated within mathematics itself. It has taken many years for mathematicians
to come to terms with this situation, and some of them are still not
entirely happy about it.
This book is an integrated introduction to Coding. By this I mean replacing
symbolic information, such as a sequence of bits or a message written in a
natural language, by another message using (possibly) different symbols. There
are three main reasons for doing this: Economy (data compression), Reliability
(correction of errors), and Security (cryptography).
I have tried to cover each of these three areas in sufficient depth so that the
reader can grasp the basic problems and go on to more advanced study. The
mathematical theory is introduced in a way that enables the basic problems to
be stated carefully, but without unnecessary abstraction. The prerequisites (sets
and functions, matrices, finite probability) should be familiar to anyone who has
taken a standard course in mathematical methods or discrete mathematics. A
course in elementary abstract algebra and/or number theory would be helpful,
but the book contains the essential facts, and readers without this background
should be able to understand what is going on. |
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 Mobile Commerce : Opportunities, Applications, and Technologies of Wireless Business
This book provides the context, architectures, case studies, and intelligent analysis that will help the reader grasp the rapidly evolving subject of mobile commerce. May explains the technological aspects of mobile commerce to business decision makers and the business models to the technologists who design and build these electronic systems. It... | | | | Public Key Cryptography PKC 2008: 11th International Workshop on Practice and Theory in Public-Key Cryptography, Barcelona, Spain, March 9-12, 2008, ProceedingsThese are the Proceedings of the 11th International Workshop on Practice and Theory in Public Key Cryptography – PKC 2008. The workshop was held in Barcelona, Spain, March 9–12, 2008.
It was sponsored by the International Association for Cryptologic Research (IACR; see www.iacr.org), this year in cooperation with MAK, the... |
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