A novel approach of information security and management in distributed environment

Abstract

newline In current scenario internet is very important medium to transfer the valuable newlineinformation from one place to another place. But sometime hackers or crackers can access newlinepersonal information or data of anyone, hackers can alter or can misuse the personal or newlineconfidential information. To transmit the information safely and securely over the internet newlinethere must be some defined procedure for internet users. To establish a safe and secure newlinecommunication between any two parties is a very complex problem due to the possibility of newlineattacks and other unpremeditated changes during a lively communication over the internet. newlineCryptography and Steganography are two famous methods that preserve Data newlineConfidentiality, Data Integrity and Data Availability. In 1948, Cryptology was used for newlinemaintaining confidentiality in military and government messages, so in the beginning of newlinemodern cryptology era communicating parties had become essential to ensure message newlineconfidentiality. Today, cryptology lies at the heart of many processes and applications that newlineinclude E-commerce, Internet banking, Internet shopping and even in Aircrafts etc. The newlinepervasiveness of cryptology and the continual rise in the number of its application areas is the newlineprime motivation behind this thesis. newlineThe concept of Cryptography is to protect valuable information from unauthorized newlineaccess but after changing their meaning. While the aim of the Steganography is to cover the newlinevaluable data or information in any digital media in such a way that no one can sense the newlinepresence of such data or information. Steganography does not change the basic structure of newlinethe information or data; it only conceals the information inside the digital media or file. newlineCryptography is an act of secret writing through encryption and decryption process. newlineCommunication has always been a basic need for all human beings and online mode of newlinecommunication has become a necessity too. Internet communication is the fastest way of data newlinetransfer but during data transmission over the internet, security