Results 201 to 210 of about 3,049 (257)

Simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) data during an inner speech task. [PDF]

Data Brief
Simistira Liwicki F, Saini R, Chakladar DD, Rakesh S, Gupta V, Liwicki M, Eriksson J.   +6 more
europepmc   +1 more source

Covert Communications in a Hybrid DF/AF Relay System. [PDF]

Sensors (Basel)
Moon J.
europepmc   +1 more source

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IP Covert Channel Detection

ACM Transactions on Information and System Security, 2009
A covert channel can occur when an attacker finds and exploits a shared resource that is not designed to be a communication mechanism. A network covert channel operates by altering the timing of otherwise legitimate network traffic so that the arrival times of packets encode confidential data that an attacker wants to exfiltrate from a secure area from
Serdar Cabuk, Carla E. Brodley, Clay Shields   +2 more
exaly   +2 more sources

A Review on Network Covert Channel Construction and Attack Detection

Concurrency Computation Practice and Experience
ABSTRACTA covert network channel is a communication channel in which the message is secretly transmitted to the recipient. Sometimes, covert network channels are vulnerable to multiple attacks. Therefore, the message must be properly secure. In most cases, the covert channel is used to ensure data protection and allow users to freely access the ...
Mrinal Khadse
exaly   +2 more sources

Run-time detection of covert channels

First International Conference on Availability, Reliability and Security (ARES'06), 2006
The authors are interested in the characterization of policies which are enforced by execution monitoring mechanisms with an extra structure that is an extension of Schneider's enforcement mechanism. This paper is a starting point for continuing in this area.
Naoyuki Nagatou, Takuo Watanabe
openaire   +1 more source

Collaborative detection of Covert Storage Channels

MILCOM 2016 - 2016 IEEE Military Communications Conference, 2016
This paper describes a new collaborative approach to detect two different types of Covert Storage Channels (CSCs) that utilize TCP flag and packet sequence number in network packets. Tested in Software-defined networking (SDN), a multistage detection mechanism coordinates monitors, correlators and SDN controllers to first quickly alert traffic ...
Heng Song, Xiangyang Li
openaire   +1 more source

Detecting protocol switching covert channels

37th Annual IEEE Conference on Local Computer Networks, 2012
Network covert channels enable hidden communication and can be used to break security policies. Within the last years, new techniques for such covert channels arose, including protocol switching covert channels (PSCCs). PSCCs transfer hidden information by sending network packets with different selected network protocols.
Steffen Wendzel, Sebastian Zander
openaire   +1 more source

Covert channel detection in VoIP streams

2011 45th Annual Conference on Information Sciences and Systems, 2011
This paper presents two approaches to detect VoIP covert channel communications using compressed versions of the data packets. The approach is based on specialized random projection matrices that take advantage of prior knowledge about the normal traffic structure.
Gonzalo J. Garateguy, Gonzalo R. Arce, Juan Pelaez   +2 more
openaire   +1 more source

Detecting covert channels within VoIP

2012 35th IEEE Sarnoff Symposium, 2012
VoIP (Voice Over IP) was ranked third among the top 11 technologies of the decade in 2011. It is one of the most popular networking services. As it is readily adopted, the VoIP traffic is increasing steadily. The large amount of data transported by VoIP makes it ideal for creating covert channels.
Hong Zhao, Nirwan Ansari
openaire   +1 more source

WLAN covert timing channel detection

2015 Wireless Telecommunications Symposium (WTS), 2015
Wireless LANs have been widely used to carry out a system to access Internet. WLAN security becomes mission one, especially a new type of attacks called covert channel based attack surfaced over the past few years. This attack uses different data rates provided in WLAN to transmit a secret message.
Hong Zhao, Minxiou Chen
openaire   +1 more source