Entity

Time filter

Source Type


Kamini,Lovely Professional University | Sharma P.,RIMT Institute of Engineering and Technology
Proceedings: Turing 100 - International Conference on Computing Sciences, ICCS 2012 | Year: 2012

whenever internet connection is used in wireless devices like mobile phones, all the communication from mobile device to web server pass through the gateway. Two security protocols are used in between the wireless device and web server. one protocol named WTLS is used between the wireless device and gateway and other protocol named TLS is used between the gateway and web server. When two protocols are used in between the wireless device and web server then there is a problem of providing end to end security. Most of the research paper discuss about the wireless transport layer security for wireless device and transport layer security for wired device. This research paper suggested a Common security Protocol for wireless device and wired device. Instead of two different security protocols like WTLS and TLS, a common security protocol would be used in between the gateway. In this paper the architecture of common security protocol (CSP) is discussed. This paper focuses on comparative study of various security algorithms used for wireless device and wired device. On the basis of comparative analysis of both security protocols, algorithm would be designed for common security protocol. This algorithm for CSP would work in such way so that end to end security would be improved from wireless device to wired server. © 2012 IEEE. Source


Kaushal G.,RIMT Institute of Engineering and Technology | Singh H.,Indian Institute of Technology Ropar | Prakash S.,Indian Institute of Technology Roorkee
International Journal of Surface Science and Engineering | Year: 2011

Ni-20Cr coating was deposited on a commonly used boiler steel ASTM A213 347H by high-velocity oxy-fuel (HVOF) thermal spray process to enhance its high-temperature corrosion resistance. High temperature corrosion behaviour was investigated for the uncoated and HVOF sprayed Ni-20Cr coated boiler steel in a simulated boiler environment (Na 2SO 4-60%V 2O 5) at 900°C for 50 cycles. The information regarding this system of coating-substrate steel-coating process with regard to its high temperature corrosion is not available in the open literature. Each cycle consisted of one hour heating in the silicon carbide tube furnace followed by 20 min. cooling in air. Mass change technique was used to approximate the kinetics of corrosion. Techniques like X-ray diffraction (XRD) and scanning electron microscopy/energy dispersive (SEM/EDS) were used to characterise the corrosion products. It was observed that the uncoated steel suffered corrosion in the form of spalled powder and peeling up of its oxide scale. On the contrary, the Ni-20Cr coating provided considerable resistance to the corrosion. The Ni-20Cr coating was successful in reducing the mass gain of the steel by 77% which may be due to the formation of oxides of nickel and chromium in its oxide scale. Copyright © 2011 Inderscience Enterprises Ltd. Source


Kaushal G.,RIMT Institute of Engineering and Technology | Singh H.,Indian Institute of Technology Ropar | Prakash S.,Indian Institute of Technology Roorkee
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science | Year: 2011

The high-velocity oxy-fuel (HVOF) spray technique was used to deposit Ni-20Cr coating on a commonly used boiler steel ASTM A213 347H. The specimens with and without coating were exposed to the super heater zone of a thermal power plant boiler at a temperature of 973 K (700 °C) under cyclic conditions to ascertain their erosion-corrosion (E-C) behavior. High-temperature oxidation behavior of the specimens was also evaluated under cyclic thermal loading conditions at an elevated temperature of 1173 K (900 °C). Mass change data and thickness loss were measured to formulate the kinetics of E-C/oxidation for the specimens. The exposed specimens were characterized by X-ray diffraction (XRD) and field emission-scanning electron microscopy/energy dispersive spectroscopy (FE-SEM/EDS). The uncoated steel suffered higher E-C in comparison with its coated counterpart in terms of mass loss as well as thickness loss. It was observed that overall mass loss was reduced by 31 pct and thickness loss by 44 pct after the application of the coating. The possible formation of Cr2O3 phase in the coated substrate may be suggested to contribute to better E-C behavior. During air oxidation exposures, the coating was found to be intact with only marginal spallation of its oxide scales, which is an indicator of good adhesion between the coating and substrate steel. The air oxidation mass change data indicated that the coating enhanced the oxidation resistance of the steel by 85 pct. © 2010 The Minerals, Metals & Materials Society and ASM International. Source


Kaushal G.,RIMT Institute of Engineering and Technology | Singh H.,Indian Institute of Technology Ropar | Prakash S.,Indian Institute of Technology Roorkee
Materials at High Temperatures | Year: 2011

Surface engineering of ASTM A213 TP347H boiler steel was done by detonation-gun spraying of a Ni -20Cr coating with the aim to enhance the corrosion resistance of the steel. High-temperature corrosion behaviour was investigated for the uncoated and coated boiler steel in a simulated boiler environment (Na2SO4-60%V2O5) at 900°C for 50 cycles. Each cycle consisted of 1 hour heating in the silicon carbide tube furnace followed by 20 minutes cooling in air. Measurement of mass change was used to approximate the kinetics of corrosion. X-ray diffraction (XRD) and scanning electron microscopyyenergy dispersive spectroscopy (SEMyEDS) were used to characterise the corrosion products. To ascertain the rate of corrosion the parabolic rate constants (kp) were obtained from the slope of the linear regression fitted of (cumulative weight gainyarea) 2 versus number of cycles for the uncoated as well as the coated substrates. It was observed that the behaviour of uncoated steel was not parabolic and it suffered corrosion in the form of peeling up and spallation of its oxide scale. On the contrary, the Ni - 20Cr coated steel followed a parabolic rate law and showed reduced rates of corrosion in comparison with its uncoated counterpart. The loss of material owing to high temperature corrosion of the steel was reduced appreciably after the application of the coating. © 2011 Science Reviews 2000 Ltd. Source


Sharma Y.,RIMT Institute of Engineering and Technology | Kumar S.,Punjab Agricultural University
ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology | Year: 2011

Many routing protocols for Mobile Ad Hoc Networks have been proposed. The efficient routing protocol provides the significant benefits to such networks in terms of both performance and reliability. However, the nature of ad hoc networks makes them vulnerable to attacks especially in the routing protocols. How to protect an ad hoc routing protocol and which protocol works efficiently under the security attacks is an important research topic. This paper focuses on the performance investigation of a reactive protocol i.e. AODV and a proactive protocol i.e. OLSR under a passive attack called selfishness attack. In this work, it is analyzed that under the selfishness attack the proactive protocols outperforms the reactive protocols. © 2011 IEEE. Source

Discover hidden collaborations