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Applied Cryptography: Protocols, Algorithms, and Source Code in C 2nd Edition
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Top Customer Reviews
A caveat: this is not a textbook of cryptography in the sense that it teaches everything necessary to understand the mathematical basis of the science. Schneier does not discuss number theory because he expects those who use the relevant chapters of the book will already have training in higher maths. Nonetheless, the book does contain a wealth of information even for the layman.
One helpful part of Schneier's book is his opinion of which encryption algorithms are already broken by the National Security Agency, thus letting the reader know which encryption programs to avoid. There will always be people who encrypt to 40-bit DES even though it is flimsy and nearly instantly breakable, but the readers of APPLIED CRYPTOGRAPHY can greatly improve the confidentiality of their messages and data with this book. Discussion of public-key web-of-trust is essential reading for anyone confused by how public-key signatures work.
APPLIED CRYPTOGRAPHY was published in 1995 and some parts are already out of date. It is ironic that he hardly mentions PGP, when PGP went on to become the most renowned military-strength encryption program available to the public, although it is being superseded by GnuPG. Another anachronism is Schneier's assurance that quantum computing is decades away.Read more ›
*Applied Cryptography*; if any of them have but one text on crypto
for reference, it will almost certainly be *Applied Cryptography*.
It is the de facto standard reference on modern cryptography as
well as serving as an excellent introduction to the subject.
The art is very old - Julius Caesar was the first recorded user of
cryptography for military purposes - and reached a watershed when
computers were put to work in order to break German and Japanese
ciphers. Indeed, that was the first *real* application of electronic
computers. A natural development was the use of computers for the
development of cryptographic systems.
That is where Bruce Schneier's remarkable book begins. It is notable
for two reasons: the breadth and depth of coverage, and the high
standard of technical communication.
As a reference its scope is encyclopaedic, providing descriptions
and assessments of just about every non-military crypto system
developed since computers were first applied to the purpose. There
are also military-cum-government algorithms amongst the collection,
some from the old Soviet Union and others from South Africa. It is
not just an A-Z procession of algorithms; the author progresses
in a logical manner through the many technical aspects of cryptography.
It is common to find that masters of mysterious technical arts are
poor communicators. Bruce Schneier demonstrates exceptional skill
as a technical communicator. Here is a book about an esoteric
subject - one built on a foundation of theoretical mathematics - that
ordinary folk can read.Read more ›
The vast array of topics covered by the book is truly astounding in is depth and breadth. There is hardly a single cryptological concept, either minor or major, that the book does not cover. It is not possible to detail everything Applied Cryptography covers. But a few of the topics are: Foundations of cryptography, Protocols, Protocol Building Blocks, Key Lengths, key exchange, key management, Algorithms, the mathematical of cryptography, DES, RSA, One-Way Hash Functions, Symmetric vs. Public-Key cryptography, Public-Key Digital Signature Algorithms, Substitution Ciphers and Transposition Ciphers, Digital Signatures, Random and Pseudo-Random Sequence Generation, PGP, Authentication, Advanced security Protocols, Cryptographic Techniques, Identification Schemes, the politics of cryptography and much (much!) more.
Applied Cryptography also includes the source code for DES, IDEA, BLOWFISH, RC5 and other algorithms.Read more ›
Most Recent Customer Reviews
This is an update to a classic. I had used the original version for years and just plain wore the old one out. Read morePublished 2 months ago by Amazon Customer
If you don't love this book, then you don't understand this material.Published 8 months ago by sipy
too long and theoretical. Maybe good as a reference book but I didn't see a value in it for anything else.Published 12 months ago by Kayvon Sadeghi
Very interesting and well written. I got it for the history lesson not planning to understand the details. Bruce makes it understandable.Published 15 months ago by Brian Sponaugle