Most of the symmetric key authentication schemes deployed today are based on principles introduced by Needham and Schroeder [17] more than twenty years ago. However, since then, the computing environment has evolved from a LAN-based client-server world to include new paradigms, including wide area

Since the earliest days of necessity for secret transmission of messages, which date back to thousands years BCE, different methods have been used to transfer the message between two parties. These days,

Abstract-The present work deals with modified advanced symmetric key cryptographic method i.e. modified DJSSA algorithm[1] for multiple encryption and decryption of any file. Recently Nath et al[1] developed an algorithm called DJSSA for encryption and decryption of any file using a random key

. As such, the application of chaos in modern cryptography has been a topic of much research and debate for over a decade. This paper presents an overview of chaotic dynamics and their role in symmetric key chaos-based cryptosystems from both a theoretical and practical perspective. It is argued that chaos

Several protocols for authentication using memory-constrained smart cards or tokens based on symmetric key cryptography are described.

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for secure communication bandwidth grow, efficient cryptographic processing will become increasingly vital to good system performance. In this paper, we explore techniques to improve the performance of symmetric key cipher algorithms. Eight popular strong encryption algorithms are examined in detail

-----------------------------------------------------------------------------ABSTRACT-----------------------------------------------------------------------------------There are huge numbers of algorithms available in symmetry key block cipher. All these algorithms have been used either complicated

This paper presents the various developments and emerging trends in the symmetric key cryptography technique. It provides an overview of latest inventions and approaches that are implemented in the recent scenario for the betterment of private key cryptography technique with respect to its

Abstract: Information sharing through digital media is a vital and challenging one. Those challenges are addressed with the help of cryptographic and stenographic techniques. In general, strength of the symmetric key cryptographic algorithms is based on keys. The objective of this paper