31 citations · 186 across the 36 of their papers we have counts for
31 papers · 1 filter
SHAH: Hash Function based on Irregularly Decimated Chaotic Map
Mihaela Todorova, Borislav Stoyanov, Krzysztof Szczypiorski +1
In this paper, we propose a novel hash function based on irregularly decimated chaotic map. The hash function called SHAH is based on two Tinkerbell maps filtered with irregular de…
SocialStegDisc: Application of steganography in social networks to create a file system
Jedrzej Bieniasz, Krzysztof Szczypiorski
The concept named SocialStegDisc was introduced as an application of the original idea of StegHash method. This new kind of mass-storage was characterized by unlimited space. The d…
Yet Another Pseudorandom Number Generator
Borislav Stoyanov, Krzysztof Szczypiorski, Krasimir Kordov
We propose a novel pseudorandom number generator based on Rössler attractor and bent Boolean function. We estimated the output bits properties by number of statistical tests. The r…
StegHash: New Method for Information Hiding in Open Social Networks
Krzysztof Szczypiorski
In this paper a new method for information hiding in open social networks is introduced. The method, called StegHash, is based on the use of hashtags in various open social network…
YouSkyde: Information Hiding for Skype Video Traffic
Wojciech Mazurczyk, Maciej Karas, Krzysztof Szczypiorski +1
In this paper a new information hiding method for Skype videoconference calls - YouSkyde - is introduced. A Skype traffic analysis revealed that introducing intentional losses into…
StegIbiza: New Method for Information Hiding in Club Music
Krzysztof Szczypiorski
In this paper a new method for information hiding in club music is introduced. The method called StegIbiza is based on using the music tempo as a carrier. The tempo is modulated by…
Improving Hard Disk Contention-based Covert Channel in Cloud Computing Environment
Bartosz Lipinski, Wojciech Mazurczyk, Krzysztof Szczypiorski
Steganographic methods allow the covert exchange of secret data between parties aware of the procedure. The cloud computing environment is a new and hot target for steganographers,…
SkyDe: a Skype-based Steganographic Method
Wojciech Mazurczyk, Maciej Karas, Krzysztof Szczypiorski
This paper introduces SkyDe (Skype Hide), a new steganographic method that utilizes Skype encrypted packets with silence to provide the means for clandestine communication. It is p…
Steganalysis of Transcoding Steganography
Artur Janicki, Wojciech Mazurczyk, Krzysztof Szczypiorski
TranSteg (Trancoding Steganography) is a fairly new IP telephony steganographic method that functions by compressing overt (voice) data to make space for the steganogram by means o…
Towards Steganography Detection Through Network Traffic Visualisation
Wojciech Mazurczyk, Krzysztof Szczypiorski, Bartosz Jankowski
The paper presents initial step toward new network anomaly detection method that is based on traffic visualisation. The key design principle of the proposed approach is the lack of…
Principles and Overview of Network Steganography
Jozef Lubacz, Wojciech Mazurczyk, Krzysztof Szczypiorski
The paper presents basic principles of network steganography, which is a comparatively new research subject in the area of information hiding, followed by a concise overview and cl…
Influence of Speech Codecs Selection on Transcoding Steganography
Artur Janicki, Wojciech Mazurczyk, Krzysztof Szczypiorski
The typical approach to steganography is to compress the covert data in order to limit its size, which is reasonable in the context of a limited steganographic bandwidth. TranSteg…
Using Transcoding for Hidden Communication in IP Telephony
Wojciech Mazurczyk, Pawel Szaga, Krzysztof Szczypiorski
The paper presents a new steganographic method for IP telephony called TranSteg (Transcoding Steganography). Typically, in steganographic communication it is advised for covert dat…
Direct Sequence Spread Spectrum Steganographic Scheme for IEEE 802.15.4
Elzbieta Zielinska, Krzysztof Szczypiorski
This work addresses the issues related to network steganography in IEEE 802.15.4 Wireless Personal Area Networks (WPAN). The proposed communication scheme employs illicit Direct Se…
Is Cloud Computing Steganography-proof?
Wojciech Mazurczyk, Krzysztof Szczypiorski
The paper focuses on characterisation of information hiding possibilities in Cloud Computing. After general introduction to cloud computing and its security we move to brief descri…
How Hidden Can Be Even More Hidden?
Wojciech Fraczek, Wojciech Mazurczyk, Krzysztof Szczypiorski
The paper presents Deep Hiding Techniques (DHTs) that define general techniques that can be applied to every network steganography method to improve its undetectability and make st…
Sending Hidden Data via Google Suggest
Piotr Bialczak, Wojciech Mazurczyk, Krzysztof Szczypiorski
Google Suggest is a service incorporated within Google Web Search which was created to help user find the right search phrase by proposing the autocompleting popular phrases while…
Hiding Information in a Stream Control Transmission Protocol
Wojciech Fraczek, Wojciech Mazurczyk, Krzysztof Szczypiorski
The STCP (Stream Control Transmission Protocol) is a candidate for a new transport layer protocol that may replace the TCP (Transmission Control Protocol) and the UDP (User Datagra…
PadSteg: Introducing Inter-Protocol Steganography
Bartosz Jankowski, Wojciech Mazurczyk, Krzysztof Szczypiorski
Hiding information in network traffic may lead to leakage of confidential information. In this paper we introduce a new steganographic system: the PadSteg (Padding Steganography).…
On Steganography in Lost Audio Packets
Wojciech Mazurczyk, Jozef Lubacz, Krzysztof Szczypiorski
The paper presents a new hidden data insertion procedure based on estimated probability of the remaining time of the call for steganographic method called LACK (Lost Audio PaCKets…
Multi-Level Steganography: Improving Hidden Communication in Networks
Wojciech Fraczek, Wojciech Mazurczyk, Krzysztof Szczypiorski
The paper presents Multi-Level Steganography (MLS), which defines a new concept for hidden communication in telecommunication networks. In MLS, at least two steganographic methods…
Retransmission Steganography Applied
Wojciech Mazurczyk, Milosz Smolarczyk, Krzysztof Szczypiorski
This paper presents experimental results of the implementation of network steganography method called RSTEG (Retransmission Steganography). The main idea of RSTEG is to not acknowl…
Hiding Data in OFDM Symbols of IEEE 802.11 Networks
Krzysztof Szczypiorski, Wojciech Mazurczyk
This paper presents a new steganographic method called WiPad (Wireless Padding). It is based on the insertion of hidden data into the padding of frames at the physical layer of WLA…
Stream Control Transmission Protocol Steganography
Wojciech Fraczek, Wojciech Mazurczyk, Krzysztof Szczypiorski
Stream Control Transmission Protocol (SCTP) is a new transport layer protocol that is due to replace TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) protocols…