COMPARATIVE STUDY OF VARIOUS KEY EXCHANGING ALGORITHMS
Published In: INTERNATIONAL CONFERENCE ON ADVANCED COMPUTING, COMMUNICATION AND NETWORKS
Author(s): GURPREET SINGH , NAVITA SAINI , P.R. SURI , SUSHIL PENSIA
Abstract: The concept of public key Cryptosystem evolved from an attempt to attack two of the most difficult problems associative with symmetric encryption. The initial problem is that of key distribution. As we have seen, key distribution under symmetric encryption requires either (1) that two communication already share a key, which somehow is distributed to them; or (2) the use of key distribution centre. Finally, there is a feeling that key distribution is trivial when using public key encryption, compared to the rather cumbersome handshaking involved with key distribution canters for symmetric encryption. This paper provides an overview of various public key algorithms and a comparison between them is made on the basis of Key size, security and Cost. First we discuss the RSA algorithm, Diffie Hellman Key Exchange Algorithm and EC Cryptography – (ECDH – Elliptic Curve Diffie Hellman) and a comparison between them is made on the basis of Key size, security and Cost.
- Publication Date: 03-Jun-2011
- DOI: 10.15224/978-981-07-1847-3-1027
- Views: 0
- Downloads: 0
SELECTION OF PULSE FOR ULTRA WIDE BAND COMMUNICATION (UWB) SYSTEM
Published In: INTERNATIONAL CONFERENCE ON ADVANCED COMPUTING, COMMUNICATION AND NETWORKS
Author(s): ASHISH K. CHARBE
Abstract: UWB (Ultra Wide Band) technology is a reliable transmission scheme for wireless communication with high data rates. UWB is defined as signals with fractional band width more than 20% of its central frequency or as signals with bandwidth more than 500MHZ. UWB can be characterized with ultra-short duration pulses called monopulses which has excellent immunity in interference from sensitivity or multi path effects or fading problems. Pulse shaping and baseband modulation schemes are two of the main determinant factors for its performance evaluation. The objective of the paper is to examine different types of pulse shaping and modulation schemes for UWB performance evaluation. By considering three different types of pulses and modulation techniques the BER (bit error rate) performance of the modulation techniques are evaluated in the presence of the AWGN (additive white Gaussian noise).Depending upon the BER, we decide the which modulation and pulse are considered for UWB system.
- Publication Date: 03-Jun-2011
- DOI: 10.15224/978-981-07-1847-3-1027
- Views: 0
- Downloads: 0