Improved DSA cryptographic protocol and its comparative study with RSA protocol

Security is gratifying day after day alarm for a extensive sort of communication over the internet that operate, exchange a few words, and amass susceptible data. Data encryption is the alteration of data into the form called ciphertext which is not straightforwardly read by unintended or unwanted people. Decryption is the method of converting encrypted data back into its unique form, so that it is effortlessly tacit by the anticipated recipient. The DSA (Digital Signature Algorithm) protocol which is being commonly used for encryption and decryption is modified in this paper. The performance of this modified cryptographic technique is compared with existing RSA (Rivest Shamir and Aldemann) protocol in terms of time and security. The results achieved in the form of tables and graphs in support of this reveal significant improvement in security and time.