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Anchugam, C. V.
- New Data Encryption Standard Algorithm
Abstract Views :227 |
PDF Views:3
Authors
Affiliations
1 Department of Computer Applications, V.S.B. Engineering College, Karur, Tamilnadu, IN
1 Department of Computer Applications, V.S.B. Engineering College, Karur, Tamilnadu, IN
Source
Networking and Communication Engineering, Vol 4, No 6 (2012), Pagination: 331-336Abstract
A goal is the design of any encryption algorithm must be security against unauthorized attacks. Within the last decade, there has been a vast increase in the accumulation and communication of digital computer data in both the private and public sectors. Much of this information has a significant value, either directly or indirectly, which requires protection. The algorithms uniquely define the mathematical steps required to transform data into a cryptographic cipher and also to transform the cipher back to the original form. Performance and security level is the main characteristics that differentiate one encryption algorithm from another. Here introduces a new method to enhance the performance of the Data Encryption Standard (DES) algorithm is introduced here. This is done by replacing the predefined XOR operation applied during the 16 round of the standard algorithm by a new operation depends on using two keys, each key consists of a combination of 4 states (0, 1, 2, 3) instead of the ordinary 2 state key (0, 1). This replacement adds a new level of protection strength and more robustness against breaking methods. The New Comparative Study between DES, 3DES and AES within Nine Factors achieving an efficiency, flexibility and security, which is a challenge of researchers.Keywords
Comparison of DES, 3DES and AES, DES, Encryption, Decryption.
- Simulation Based Performance Comparison of Various Routing Protocols in MANET Using Network Simulation Tool
Abstract Views :168 |
PDF Views:3
Authors
Affiliations
1 P.G. and Research Department of Computer Science, Government Arts College (Autonomous), Karur, IN
1 P.G. and Research Department of Computer Science, Government Arts College (Autonomous), Karur, IN
Source
International Journal of Advanced Networking and Applications, Vol 4, No 5 (2013), Pagination: 1744-1751Abstract
A Mobile Ad hoc Network (MANET) is a collection of wireless mobile nodes forming a network temporarily without any centralized administration of the mobile networks. Each node in MANET moves arbitrarily making the multi-hop network topology to change randomly at unpredictable times. Two nodes in such a network can communicate in a bidirectional manner if and only if the distance between them is at most the minimum of their transmission ranges. When a node wants to communicate with a node outside its transmission range, a multi-hop routing strategy is used which involves some intermediate nodes? Because of the movements of nodes, there is a constant possibility of topology change in MANET. There are several familiar routing protocols like DSDV, AODV, DSR, etc., Which have been proposed for providing communication among all the nodes in the network? This paper presents a performance comparison of proactive and reactive protocols AODV, DSDV and DSR based on metrics such as throughput, packet delivery ratio and average end-to-end delay by using the NS-2 simulator.Keywords
MANET, DSDV, DSR, AODV, Throughput, Packet Delivery Ratio and Average End-to-End Delay.Full Text