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Security is the most promising field in networks and safe data transmission is a major task in this era. To enhance security in transmission different approaches have been developed, but they are complex and useful for the small sized data. To improve the security level of data Transmission an integrated algorithm is proposed based on DES and Diffie Hellman with digital signature scheme SHA for providing digital abstract of the original data. This mechanism provides the confidentiality, completeness, Authentication and Integration. This paper presents the idea for securing the data transmission using the integrated algorithm useful for large sized data and also uses DES that provides the fast transmission. It is an effective algorithm to solve the problem of safe data transmission via internet.
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