A Preliminary Approach to Daily Use Cryptography
Keywords:
Plain text, Cipher Text, Key, Shrink Function, Expansion Function, L-Key, R-KeyAbstract
In the modern era of computation security is the most essential matter. Nowadays everyone is concerned about data abstraction. In this paper, a simple yet standard cryptography algorithm has been introduced which can easily be implemented and used by common people. Here, as an introductory approach a text file with some data has been taken and encrypted using a new symmetric key cryptography algorithm and the decryption has been done using the same where each 32 bit from the plain text has been selected and expanded using an Expansion Function and a 64 bit key has been processed and used for the encryption of the expanded plain text. That encrypted text is then shrunk back to 32 bit cipher text. The decryption is done in the same procedure.
References
Christof Paar, Jan Pelzl, “Understanding Cryptography: A text book for students and practitioners”, Springer-Verlag Berlin Heidelberg, ISBN: 978-3-642-04100-6, Page No (2-3), (55-83).
David E. Newton, “Encyclopedia of Cryptography”, ABC-CLIO (October 1, 1997), Zero (0th) Edition, ISBN-13: 978-0874367720.
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