Algorithm of cipher text containing key to produce cipher text transmitted in network security

Authors:
Homer Wu;Chong-Yen Lee;Wuu-Yee Chen;Tsang-Yean Lee
Affiliations:
Department of Information Management, Chinese Culture University, Taipei, Taiwan;Department of Information Management, Chinese Culture University, Taipei, Taiwan;Department of Information Management, Chinese Culture University, Taipei, Taiwan;Department of Information Management, Chinese Culture University, Taipei, Taiwan
Venue:
AIKED'07 Proceedings of the 6th Conference on 6th WSEAS Int. Conf. on Artificial Intelligence, Knowledge Engineering and Data Bases - Volume 6
Year:
2007

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Abstract

A plaintext is separated into two parts, a fixed length part and a variable length part. The second part of the plaintext is encrypted to a cipher text using a key. In this paper, an encryption algorithm which encrypts the first part of the plaintext and the key of the second part to a cipher text is proposed. Basic computing operations, such as inserting dummy symbols, rotating, transposition, shifting, and complementation, are applied to encrypt plaintext to cipher text. The key used to encrypt the second part of cipher text can be retrieved by decryption of the first part of cipher text . It is secure for the cipher text transmitted through the network since the tables of cipher text are produced randomly and it is difficult to carry out cryptanalysis.