Renowned Information Security Algorithms: A Comparative Study

Abstract

Authentication and Encryption with Key Exchange are the key concepts in Cryptography, which have been continuously being targeted. Many Security Algorithms are developed as research outcome and they are broadly classified into Symmetric and Asymmetric algorithms. Symmetric Algorithms are conventional which use a common secret key that is transmitted by using physical or other communication channel. Data Encryption Standard, Triple Data Encryption Algorithm, International Data Encryption Algorithm, Blowfish and AES are the algorithms that are categorized into Symmetric. In order to make key distribution easy, Asymmetric Key algorithms such as Rivest Shamir Adleman, Diffie Hellman, Elgamal, Digital Signature Algorithm and Elliptic Curve Cryptography, are used for Encryption and Authentication where secret key remains with generating user. Rivest Shamir Adleman, ElGamal and Elliptic Curve Cryptography are the most widely used public key algorithms that perform Key Exchange and used for both authentication and confidentiality. Digital Signature Algorithm is a generally applied digital signature system where as Diffie Hellman is used only for Key Exchange. This paper presents a review of the renowned Symmetric and Asymmetric algorithms. The specified algorithms are developed and test results are presented comparing the performance and key sizes.

Examining Coastal Alterations in the Godavari Delta Region using DSAS, Remote Sensing and GIS Techniques

“…With a spring tide range of 1.3 m and a neap tide range of 0.5 m, typical of conditions in the Bay of Bengal, the delta encounters varying tidal influences. This densely populated delta sustains an average population density of 729 persons per km 2 [11]despite receiving an average annual rainfall of 1100 mm [10] in this semiarid region. The robust monsoon period from June to November brings cyclones, resulting in a high-energy wave environment and storm surges measuring 3 to 4 meters in the bay [12].…”

Construction and Performance Characterization of Ion Selective Electrodes for Potentiometric Determination of Citapolarm Hydrobromide in Biological Fluids

“…Citalopram has been found to reduce the symptoms of diabetic neuropathy 3 . Several methods have been reported for the determination of CT including spectrophotometry [4][5][6][7][8] , capillary electrophoresis 9-11 gas chromatography 12 , thin layer chromatography 13 and high performance liquid chromatography 14,15 . The present work describes preparation, characterization and application of coated wire electrode for continuous determination of CT in pure form and in biological fluids.…”