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Product Description
For courses in Cryptography, Cryptology, and Applications of Number Theory and Abstract Algebra.
This is the only undergraduate text to explain fundamental ideas of classical and modern cryptography, and provide the essential background in number theory, abstract algebra, and probability—with surveys of relevant parts of complexity theory. A level of linear algebra sophistication is assumed in the reader. A user-friendly, down-to-earth tone gives students concretely motivated introductions to all topics.
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Customer Reviews
Most Helpful Customer Reviews
12 of 13 people found the following review helpful
Format:Paperback
I was somewhat daunted when I first glanced at this book, as a reader of 'popular' titles on cryptology I was somewhat baffled by the mathematics. After reading carefully, though, I found that the maths was logical and well presented and it led me by the hand until I could feel long-atrophied brain cells last dusted off in school reawakening. It seems that books on cryptology fall into three classes. If you want to read about history and understand the basics then 'The Codebreakers', 'Seizing Enigma', 'The Code Book' and 'The Emperors Codes' are definitely the way to go. If you're a serious academic mathematician then there are journals and textbooks that should be read in detail. If, like me, you're somewhere in the middle, becoming interested in the way modern codes actually work within your computer then this is an excellent introduction and very legible. It is clearly intended as an academic primer (there are questions at the end of each chapter) and this doesn't harm it at all. The book was published too late to reveal the winner of the AES cometition, which is a shame since a complete description of Rijndael would have been most welcome but there are descriptions of DES and RSA among many others and a very good description of Elliptic-curve encryption.
This is a fairly technical book and I wouldn't have wanted it to be more so, but I am not a mathematician and the way this book is paced I didn't need to be.
If you are frightened of equations then this really won't make you happy but if you're comfortable with algebra and can dredge up some primitive calculus from the depths of your past then the book will guide you into the more complicated areas with gentle ease.
Most Helpful Customer Reviews on Amazon.com (beta)
Amazon.com:
11 reviews
21 of 21 people found the following review helpful
A great book for anyone just starting to learn about codes
27 Aug 2000
Format:Paperback
This book is great for anyone just starting to learn about cryptology. It doesn't expect you to understand large amounts of mathematics, and goes through the necessary mathematics to understand the subject and problems presented. Additionally, this book has an answer key for selected problems (not just a few, but many problems), which makes it great for the person wanting to teach themselves the subject at their own pace. Also, it makes for a good reference for the person already familiar with cryptology. Finally, it is a great book for the experienced mathematician that wants to see modern/abstract algebra applied to a modern day subject.
7 of 7 people found the following review helpful
A good approach
23 Feb 2003
Format:Paperback
This is a math book. It tells you cryptography-related abstract algebra, number theory, etc. The good thing is it doesn't assume you have much math background.
On the other hand, it has a lot of errors. Some are just typos, some not. Personally, I think if a math book has a single math error (wrong lemma, incorrect logic, ...), it is not a qualified math book. Unfortunately, this book has more than one.
The reason I still give it four stars is that I like its approach. Without math, cryptography is not cryptography. If you don't have enough math background, this book really helps you get started. There are simply not many choices on the market of this kind. After reading this, you can go to more rigorous, advanced ones, such as Koblitz's series. An alternative (more rigorous, less abstract algebra) is Bauer's. All Koblitz's and Bauer's are excellent.
2 of 2 people found the following review helpful
Actually 4.6
27 April 2003
Format:Paperback
I like the book quite a bit because of the actual down-to-earth language Garrett uses. It is very nice since I'm using it on my own time. There some errors in the book, however. He also selects only about 25% of the questions to anwer in the key. He could show about 50% and give an explanation on how to find the answer. Other than that, there is nothing wrong with the book and those problems shouldn't keep you from buying it.
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