Hi all,
I ordered this book for my college's subject - Data Security ,
But as an engineering student I opened book at the time of my exam and got surprised because many chapters from previous edition / my syllabus were missing.
I thought they may only re-arranged the chapters ,
But No , I didn't find them anywhere in the book.
[Some little topics I found , but not much.]

After little research I got that many things were trimmed from this book , Also many new things are added , But consider...

A very good book on the subject. A person having interest over data security should have this book. What is good about this book is the little introduction of number theory which is just adequate to understand the subject nicely.
Also very good service by flipkart, got it within 24 hrs.

Very nice book with all content, Useful for professionals as well.

I Bought this book for my MS - Software Systems.
If this is your prescribed text book, go for it.

Clears the whole course and is quite explanatory.

And Special thanks to Flipkart for awesome deilvery :)

Perscribed textbook for Anna University and many more university this book is one of the most basic book that gives a clear explanation about the various network security measures and cryptography techniques...

One thing to note for Anna University students is that the 5th unit in the syllabus is not in this book.You will have to refer to William Stallings Fourth edition.

Overall 5 on 5 for this book.

Good books for cybersecurity

good

Good book.

Good for learning Cryptography.

Excellent