A New Cryptosystem with Four Levels of Encryption and Parallel Programming

摘要

Evolution in the communication systems has changed the paradigm of human life on this planet.The growing network facilities for the masses have converted this world to a village (or may beeven smaller entity of human accommodation) in a sense that every part of the world isreachable for everyone in almost no time. But this fact is also not an exception for coins havingtwo sides. With increasing use of communication networks the various threats to the privacy,integrity and confidentiality of the data sent over the network are also increasing, demandingthe newer and newer security measures to be implied. The ancient techniques of codedmessages are imitated in terms of new software environments under the domain ofcryptography. The cryptosystems provide a means for the secured transmission of data over anunsecured channel by providing encoding and decoding functionalities. This paper proposes anew cryptosystem based on four levels of encryption. The system is suitable for communicationwithin the trusted groups.