Abstract. We have performed an analysis of reprocessed GPS/MET data spanning 1995–1997 generated by the COSMIC Data Analysis and Archive Center (CDAAC) in 2007. CDAAC developed modified dual-frequency processing methods for encrypted (anti-spoofing (AS)-on) during 1995–1997. compared set to Modern-Era Retrospective Research Applications-2 (MERRA-2) reanalysis, separately AS-on AS-off, focusing ...

Biometrics is an emerging technology that enables uniquely recognizing humans based upon one or more intrinsic physiological or behavioral characteristics, such as faces, fingerprints, irises, voices (Ross et al., 2006). However, spoofing attack (or copy attack) is still a fatal threat for biometric authentication systems (Schukers, 2002). Liveness detection, which aims at recognition of human ...

The anti-spoofing community has been intensively proposing new methods for defending against new spoofing techniques. It is still challenging for protecting näıve users from advanced spoofing attacks. In this paper, we analyze the problems within those anti-spoofing mechanisms and propose a new Automatic Detecting Security Indicator (ADSI) scheme. This paper describe the trust model in ADSI in ...

The anti-spoofing community has been intensively proposing new methods for defending against new web-spoofing techniques. In this paper, we analyze the problems within current anti-spoofing mechanisms, and propose a new SSL protected trust model. Then, we describe the attacks on SSL protected trusted communication. In this paper, we also propose the new Automatic Detecting Security Indicator sc...

While biometric authentication has advanced significantly in recent years, evidence shows the technology can be susceptible to malicious spoofing attacks. The research community has responded with dedicated countermeasures which aim to detect and deflect such attacks. Even if the literature shows that they can be effective, the problem is far from being solved; biometric systems remain vulnerab...

The Domain Name System (DNS) is a hierarchical naming system that is built on a distributed database for computers, services, or any other resource connected to the Internet or a private network. It translates the domain names meaningful to humans into the numerical identifiers associated with the networking equipment for the purpose of locating and addressing these devices worldwide [1]. The j...

Although the Internet protocol (IP) has become widely successful, it has led to many security issues. Many of these security issues are related to illegal host access. An address resolution protocol (ARP) spoofing attack is another security issue related to an illegal host access. This paper deals with the prevention of these ARP spoofing attacks. ARP provides dynamic mapping between two differ...

Counter Measures to Combat Misuses of MAC Address Spoofing Techniques Alok Pandey Sr. Systems Manager, Birla Institute of Technology (Mesra), Jaipur Campus, Jaipur, Rajasthan, India Email: [email protected] Dr. Jatinderkumar R. Saini Associate Professor & I/C Director, Narmada College of Computer Application, Bharuch, Gujarat, India Email: [email protected] -----------------------...

We present an agent-based model of manipulating prices in financial markets through spoofing : submitting spurious orders to mislead traders who observe the order book. Built around the standard limit-order mechanism, our model captures a complex market environment with combined private and common values, the latter represented by noisy observations upon a dynamic fundamental time series. We co...

The automatic speaker verification spoofing and countermeasures challenge 2015 provides a common framework for the evaluation of spoofing countermeasures or anti-spoofing techniques in the presence of various seen and unseen spoofing attacks. This contribution proposes a system consisting of amplitude, phase, linear prediction residual, and combined amplitude phase-based countermeasures for the...