CRYPTOGRAPHY, NETWORK SECURITY, AND CYBER LAWS

Hardly a month passes without a news
splash on cyber security—be it a new virus strain, botnets, denial of
service, or a high-profile break-in. Security was once the preserve of the
military and, more recently, of banks. Today, awareness of security policy
and practices has moved to the homes and offices of people at large. We are
more dependent on the Internet than ever before—for banking, e-trading,
e-commerce, and more. All of a sudden it seems like identity theft, phishing
attacks, and spyware are everyone’s concerns. Indeed, given the stakes
involved, it is hardly surprising that many corporations worldwide have
increased their spending on IT security over the last ten years.

Risk analysis, security policy and management, compliance, etc., all come
under the purview of security. This book, Cryptography, Network Security, and
Cyber Laws, is principally about providing and understanding technological
solutions to security. It is about the underlying vulnerabilities in systems,
services, and communication protocols. It is about their exploitation and
methods to defend against them.