NETWORK SECURITY AND CRYPTOGRAPHY

The link below gives an ebook thats really very hard to find on net as ebook.This book is the prescribed book for jntu cse students for the subject
"Cryptography and Network Security: Principles and Practice e-book" download(by William Stallings



http://rapidshare.de/files/18150561/Prentice.Hall.Cryptography.and.Network.Security.4th.Edition.Nov.2005.chm.html