期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2011
卷号：28
期号：2
出版社：Journal of Theoretical and Applied
摘要：In the world of digital data transaction, in order to transact the data in a more secured manner the need for a cryptographic algorithm cannot be compensated by others. There are huge numbers of cryptographic algorithms which makes the system resistant from the attacks of intruders and eavesdroppers.RivestCipher4 and Blow fish are the cryptographic algorithms which are very well known for their performance, simplicity, strong key generation. In this paper, we propose a method of combining block and stream cipher for increasing the key strength so that it will be very hard for the intruder to break the key and intruder will have no idea about the key formation from the combination of block and stream cipher. So it will lead to increased key complexity which obviously results the intruder nothing else than confusion and frustration.
