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228 IJCSNS International Journal of Computer Science and Network Security, VOL.9 No.11, November 2009 An coif to ensure Security through Bit-level Encryption Mrinmoy Ghosh Dr. B. C. Roy Engineering College Durgapur - 713206 atomic way out 74 Bengal, INDIA Prof. Pranam capital of Minnesota Dr. B. C. Roy Engineering College Durgapur - 713206 West Bengal, INDIA Abstract This physical composition presents a action by which we can secure all(prenominal) kind of saddle. The newly genuine encryption algorithm is presented in this paper. With help of captured clear blocks N-level, once again whatever distinct blocks be regenerated for (N + 1)-level. Thus, source stream or battleground text, fool stream or encrypted text get out be generated and decrypted text will be gotten on the applying the bowl everyplace process. The algorithm can be implemented on every kind file as it is implemented in bit-level. The former of the technique is analyzed in this paper. Key Words: cryptography, encryption, decryption, tube-shaped structure key all the distinct blocks according to their sequence of air are unplowed in private key. Source file is reborn into binary form i.e. source bitstream which is decomposed into N number of blocks of touch on length; claim L bits where L is an integer.

It may be happened that after decomposition of total source-bitstream into some L-bit blocks, a blocks, slight than L bits is left at last, say UB (means length of UB < L) which is kept unchanged during encryption. So here N should be less(prenominal) or equal to 2L (N ?2L). For the encr yption we need to generate replaced code, na! med appellation mark for each distinct block. Now agency role 2.1 and plane section 2.2 respectively describes generation of Identification Marks and the algorithm for encryption. The delegacy of key generation is discussed in section 2.3, whereas section 2.4 defines the process of decryption to get back the plain text. 1. Introduction Cryptography is an essential tool of data tribute through mathematical consumption of data with an incomprehensible format...If you requirement to get a to the full essay, order it on our website: OrderCustomPaper.com

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