Cryptography and Security

In this book basic concepts of cryptography and security are introduced. Cryptography and security are dealt with in sufficient depth and detail without losing focus. Symmetric and asymmetric key cryptography Elliptic curve cryptography hashing functions message authentication and digital signature are discussed and salient features in each explained. Subsequently the cryptographic concepts are used to address security issues at application transport and network layers. Security threats at various levels and counter measures are explained. Relevant standards and applications are given sufficient attention.