ABSTRACT
Now a day’s people are using networks in all fields, mainly for Banking, Shopping, Business applications, and filing their tax returns and day by day Internet and its applications are also increasing at rapid rate. Therefore the growing Net requires security for their data and authentication. So the network security got a lot of attention. To provide security for the people who are losing sleep trying to protect the endless terabytes of data contained in millions of networked computers from prowling hackers, virus writers and information stealers, cryptography was evolved. It provides a solution to the electronic security and privacy issue.
Network security is “keeping information private and secure from unauthorized users”.
Public Key cryptography is a system for supporting digital signatures and document encryption for an organization. It is rapidly becoming essential for an effective secure commerce and to fulfill general security and authentication requirements over non-secure networks. The banking services are the most popular usage of this technology, which is quickly spreading over all the applications that need security to be fully operational.
Cryptography is “The science of protecting data”.
If electronic signatures were used to secure the data then security could easily be compromised. The objective of this paper is to briefly describe about how this problem can avoided using Digital signature mechanism and digital signature associated with encryption.
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