Cryptography: Theory and Practice,
Third Edition (Discrete Mathematics
and Its Applications) by Douglas R.
Stinson
Fantastic Book On Cryptography
Douglas R. Stinsons Cryptography: Theory and Practice is a
mathematically intensive examination of cryptography, including ciphers,
the Data Encryption Standard (DES), public key cryptography, one-way
hash functions, and digital signatures. Stinsons explication of zero-sum
proofs--a process by which one person lets another person know that he
or she has a password without actually revealing any information--is
especially good. If you are new to the math behind cryptography but want
to tackle it, the author covers all of the required background to understand
the real mathematics here. Cryptography includes extensive exercises
with each chapter and makes an ideal introduction for any math-literate
person willing to get acquainted with this material.

Personal Review: Cryptography: Theory and Practice, Third
Edition (Discrete Mathematics and Its Applications) by Douglas
R. Stinson
This book takes a fairly rigorous mathematical approach to cryptography. It
is intended for upper level undergraduate and graduate students in
mathematics, computer science and engineering. I suspect only the quite
mathematically inclined computer science and engineering students will
find this book helpful. This is not a Boy Scout how to do secret messages
book, but a book that will give the professional the data needed to
implement cryptographic software, and the mathematician hints on both
code breaking and creating.
This is the third edition of this book. With the second edition, the author got
rid of several several subjects that were not right at the core of
cryptography, with the intend of doing a second volume. Instead, the art
and scienct of cryptography has changed so fast during the past few years
that a two volume approach isn't practical. Instead, he has produced this
third edition that picks back up many of the subjects from the first edition.
All of the material in this edition has been extensively re-written to
incorporate the latest theories and practices.
In recent years the use of cryptography has increased by several orders of
magnitude. Every time we buy something with a credit card, use on line
banking, send a password to access e-mail, we use cryptography. With
this growth, the interest at software companies, universities, and other
places has grown accordingly and this text has become the standard by
which others are compared.
Highly recommended for the serious student.
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