期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2009
卷号：9
期号：10
页码：216-219
出版社：International Journal of Computer Science and Network Security
摘要：This paper presents a new and efficient algorithm for cryptographic purpose that considers the representation of the cipher text as elements which make up the transfer function of a discrete time system in the pole-zero form. The decryption is done by conversion of the pole-zero form into the rational form and the subsequent extraction of the encrypted data from this transfer function representation. The encryption is done for normal text files. The encrypted message consists of 2 numeric arrays and a number called the gain. The process of creation of a public key cipher is discussed too.
关键词：cryptography; algorithm; Z transform; Discrete Time System; Transfer Function; signal processing
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