Spoofing Defense's Solutions

Fraud prevention solutions can be initially categorized into three categories [13]. 1) End host based solution: These types of solutions are implemented on end hosts; the purpose of these solutions is to allow end hosts to detect spoofed packets. This type of solution does not require changing the network infrastructure and is easiest to deploy, but it is too slow to reach the end host before the impersonated packet is identified. 2) Router-based solution: This type of solution is applied by routers and is located at the core and edge of the Internet, or on both sides of the Internet.

Spoofing is an act of disguising communication from an unknown source as being from a known trusted source. Spoofing, e-mail, telephone, and also be applied to the Web site, IP address, Address Resolution Protocol (ARP), or domain name system such as a computer to spoof the (DNS) server, or it can be a more technical . Access to the target, spread malware through infected links or attachments, bypassing the network access control, fraud personal information that may be used to redistribute traffic for denial of service attacks. Fraud is usually a way for malicious attackers to gain access to perform more cyber attacks such as advanced sustained threats and man-in-the-middle attacks.

GPS spoofing by broadcasting inaccurate GPS signals having the same structure as a set of ordinary GPS signals or also elsewhere GPS receiver by re-broadcasting the actual signals captured at different times, I try to deceive the aircraft. These spoofing signals can be modified so that the recipient estimates its position at a position other than its actual position, or at a different time but at that position, as determined by the attacker. Generally carry attacks common form of GPS spoofing attack called begins broadcasting a signal that is in synchronization with the actual signal observed by the receiver of the target. After that, the power of the forged signal gradually increases and disappears from the actual signal. It is suggested that capturing the Lockheed RQ - 170 drone in the northeastern part of Iran in December 2011 is the result of this attack.

Like interference, spoofing relays error signals to the GPS receiver. Because the impersonation signal can not be distinguished from the actual signal, GPS timing may be greatly distorted. According to reports of the "New Yorker", spoofing signals from devices made by Los Alamos National Laboratory can convince that it works at 600 mph to fixed receivers. Another way to explore is to run an improved atomic clock that is consistent with the atomic clocks of other satellites and can deal with the world's time in case of signal impairment. This type of system is promising, but research on the potential usage of these clocks is expected to be extended, thus increasing costs