Skip to content. Star Automated replay and jamming attack against remote keyless entry systems 11 stars 4 forks. Branches Tags. Could not load branches. Could not load tags. Latest commit. Git stats 5 commits. Failed to load latest commit information. View code. Background Replay and jamming attack The traditional RKE systems in vehicles has been seen as "secure" for the last decades due to their implementation of Rolling or Hopping Code preventing replay attacks. Therefore the victim knows something went wrong.
A natural reaction of the victim is to press the button a second time. Each of this type of jammer can be implemented as both proactive and reactive, hence hybrid. Control channel jammers work in multi-channel networks by targeting the control channel, or the channel used to coordinate network activity. A random jammer that targets the control channel could cause a severe degradation of network performance, while a continuous jammer targeting the control channel might deny access to the network altogether.
These attacks are usually accomplished by compromising a node in the network. Furthermore, future control channel locations can be obtained from the compromised nodes. Implicit jamming attacks are those that in addition to disabling the functionality of the intended target, cause denial-of-service state at other nodes of the network too.
This attack exploits the rate adaptation algorithm used in wireless networks, where the AP Access Point caters to the weak node by reducing its rate. Due to this process, the AP spends more time communicating with this weak node than the other nodes. Flow-jamming attacks involve multiple jammers throughout the network which jams packets to reduce traffic flow.
These attacks are launched by using information from the network layer. This type of jamming attack is good for the resource-constrained attackers. If there is centralized control, then the minimum power to jam a packet is computed and the jammer acts accordingly. In a non-centralized jammer model, each jammer shares information with neighbor jammers to maximize efficiency.
For every type of jammer, we determine whether it is a proactive or reactive, energy efficient or not, and its ability to jam single channel or multiple channels.
Considering a scenario where jammer jams the channel by blocking one or more nodes and block or corrupts the packets. This continuous jamming can be used as a denial of service attacks. The jammer controls the probability of jamming and transmission range to cause maximal damage to the network in terms of corrupted transmission links.
The jammer action ceases when it is monitored detecting node and a notification message is passed out of the jamming region.
To detect jamming attacks some statistics are used such as signal strength, carrier sensing time, packet delivery ratio. In the existing system, the objective of the jammer is to interfere with legitimate wireless networks and assumptions is made such as A and B are participating nodes and X is jamming node, now A is unable to send the packets for many reasons.
For example, X can continuously transmit the signal so that a can never sense channel idle or, A can send packets to A and force A to receive the junk packets all the time. So, it is necessary to measure the effectiveness of jammer and for this two matrices has been defined which are packet send ratio and packet delivery ratio.
Jamming attacks are usually introduced by emitting radio frequency signal, such attacks cannot be preventable by conventional security measures. The objective of a jammer is to interfere with legitimate wireless traffic. Jammer can achieve this goal by either blocking real traffic or, by preventing reception of messages. There are different jamming models which can be used by jammer to address jamming attacks. This is the main reason why detecting jamming is very difficult as well as important as it is the first step towards building secure and dependable wireless channel.
In existing systems, jammer jams an area in the single wireless channel. Jammer controls the probability of jamming and transmission range in order to cause maximal damage. Anti-jamming in wireless mobile networks. Most jamming detection and countermeasure are designed and evaluated in static networks. The ant jamming problem becomes more challenging in a mobile network environment where jammers may move and cause the malfunction of jammer detection and localization algorithms. So far, spatial retreats seem to be the only strategy implemented on the mobile nodes.
Having an effective approach for wireless mobile networks with acceptable overhead is still an open issue. Find more terms and definitions using our Dictionary Search.
Jamming Attack appears in:. Handbook of Research on Developments and Trends Search inside this book for more research materials.
Recommend to a Librarian Recommend to a Colleague. Looking for research materials? Search our database for more Jamming Attack downloadable research papers. Full text search our database of , titles for Jamming Attack to find related research papers. With a laptop and a few open source software tools, Nespral successfully performed the rolljam attack on his own car. Log in Sign up. Please ensure that JavaScript is enabled in your browser to view this page. Cameron Coward Follow. Latest articles.
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