Network Steganography
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Network Steganography is a technique that uses common network protocols (the header field, the payload field or both) to hide a secret message. TCP/IP protocol suite has been a potential target for network steganography from the very beginning. This PowerPoint deck delivers a basic overview of Steganography along with the different types of it & explains what is network steganography and how it can be done using the required tools. In the end, some limitations and countermeasures are discussed. References of the relevant sources are cited in the end of the deck. I hope it will be useful to whoever use this ppt.
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general framework of image steganography using different
method. Steganography is nothing but art of hide information
behind the other information without leaving remarkable track
on original message.
F045033440
This document describes a steganographic method based on integer wavelet transform and genetic algorithm. The proposed method embeds secret messages into the integer wavelet transform coefficients of images. A genetic algorithm is used to generate an optimal mapping function for embedding bits into coefficients in 8x8 blocks. After embedding, an optimal pixel adjustment process is applied to minimize differences between the original and embedded images. Experimental results on Lena and Baboon images show the proposed method achieves higher data hiding capacity and PSNR values than previous related work.
Enhancement of Data Hiding Capacity in Audio Steganography
This document discusses enhancing data hiding capacity in audio steganography. It begins by introducing steganography and its use of hiding secret information in carrier files like images, audio and video. Specifically for audio steganography, it hides data in the least significant bits of audio files. The document proposes a method to enhance capacity by using the last 4 least significant bits instead of just 1, allowing more data to be hidden. It describes the basic process of audio steganography including embedding a secret message into an audio file using a key, and then extracting the message from the stego file at the receiving end.
Customized and Secure Image Steganography Through Random Numbers Logic.
Steganography is the science of hiding information in media based data. We present random numbers logic based steganographic methods and layout management schemes for hiding data/image into image(s). These methods and schemes can be customized according to the requirements of the users and the characteristics of data/images. These methods are secure enough to meet the requirements of the users and user can play significant role in selection and development of these methods. Methods can be chosen randomly and implemented dynamically based on inputs, user choices as well as outputs. Experimental results are given to demonstrate the performance of the proposed methods.
A Comparative Study And Literature Review Of Image Steganography Techniques
This document reviews and compares various image steganography techniques that have been proposed by researchers. It begins with defining steganography as hiding communication to prevent detection by enemies. Image steganography techniques hide data in digital images by modifying pixel values. The document evaluates techniques based on invisibility, payload capacity, robustness, file format independence, and image quality using PSNR. Several literature examples are reviewed, including techniques using integer wavelet transform, bit plane complexity analysis, data compression prior to embedding, and transformations like DCT and Arnold transform for increased security. Overall the document provides an overview of image steganography concepts and a comparative analysis of different proposed techniques.
final_Paper_springer_final
This document summarizes a research paper that proposes using a hybrid genetic algorithm approach for data encryption. The system uses several modules: image steganography to hide data in images, image merging to combine encrypted images, musical encryption to encrypt data using musical patterns determined by a genetic algorithm, and a genetic algorithm module. The encryption process hides data in multiple files for stronger security. Decryption recovers the hidden data. The hybrid approach aims to provide stronger encryption that is more difficult to crack than existing algorithms.
Review paper on Data Security using Cryptography and Steganography
One of the major problems faced by this digital world is Data Security. Data Security plays an important role in the field of information technology. As there are large advancements in internet technology, there has been huge text as well as multimedia data transfer over the internet. The communication channel available for data transfer from the transmitter to receiver is highly insecure. As the security of electronic data is a major issue and to achieve high security and confidentiality, the public and the private sectors use different kinds of techniques and methods to protect the data from unauthorized users. Cryptography and Steganography are the most popular and widely used technologies for security. Cryptography is the art of hiding information by encryption and steganography is a technique to hides data in the cover medium. Cryptography hides the readable and meaningful contents of the data. And the existence of the data is hidden by the Steganography technique.
Iaetsd eliminating hidden data from an image
The document proposes a method for blindly extracting hidden data from digital media using multi-carrier iterative generalized least squares (M-IGLS). Data is hidden in the digital media through multi-carrier spread spectrum embedding and DCT transformation. M-IGLS extraction algorithm is then used to extract the hidden data without needing to know the original host or embedding carriers. Experimental results show the extracted data matches the hidden data and M-IGLS provides high signal to noise ratio for blind extraction. The technique aims to provide robust data hiding and extraction to protect against increasing data tracking and tampering attacks.
Steganograpy
This document provides an overview of steganography. It defines steganography as the process of hiding secret messages within ordinary messages. The document discusses the history of steganography, compares it to cryptography, and outlines various steganography techniques including least significant bit insertion and masking/filtering. It also addresses steganography tools, carrier file types, detection methods, advantages/disadvantages, and applications of steganography. In conclusion, the document states that steganography is still developing but can be used as a beneficial tool for privacy if applied appropriately.
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Network Steganography
- 1. Network Steganography Adil Ahmad Siddiqui Muneeb Ur Rehman
- 2. Table of contents You can describe the topic of the section here Steganography What is steganography? Limitations Limitations and potential drawback of this approach Types of Steg Prisoner’s problem The need for network steganography Countermeasures Countermeasures to be taken against network steg Proposed Methodology Method proposed for the network steganography 01 03 02 04 05 06
- 4. What is steganography? The art of hiding data 😎 the practice of hiding a secret message inside of something that is not secret.
- 5. Information hiding Cryptography Covert Channel Asymmetric Symmetric Steganography
- 6. a covert channel is an information hiding technique in which the user takes advantage of the design and availability of a standard communication channel to transfer covert data between two processes or entities without a third party knowing of its existence. Covert Channel
- 7. Types of Steganography 02 What are the major types?
- 9. The Prisoner’s Problem 03 Need for Network Steganograpy
- 10. The Prisoner’s Problem The Prisoner’s Problem is a game theory. It was introduced by Gustavus J. Simmons in 1983.
- 11. The Prisoner’s Problem Two prisoners are each placed in separate cells and are not allowed to communicate directly with each other. The Warden is the medium between them to communicate. How to share their secret without Warden knowing?
- 12. The Prisoner’s Problem Network steganography solves this problem!
- 13. Types of Covert Channels Storage-based Timing-based Hybrid Uses payload fields as covert channel Based on timings or delays in PDUs Uses both storage and timing based channels
- 14. Scope of This Method Local Area Network Internet Protocol (IPv4) Scapy and Wireshark Time-based Environment Layer 3 Protocol Covert Channel Tools or Libraries
- 15. Local Area Network Host A and B connected into LAN It uses UDP protocol at Transport layer All devices are connected through Ethernet Router is needed to communicate to the internet.
- 17. Proposed Methodology 04 Method proposed for the network steganography
- 18. Proposed Methodology Use of Timestamp field to store covert data. 4 bits in 1 timestamp option 20 bits per packet (5 timestamp options)
- 21. Limitations 05 Limitations and potential drawback of this approach
- 22. Limitations Does not use the existing IP packets Require to create new packets to hide data in them Limited to send 20 bits per packet Can send above 20 bits but it will generate warnings in Wireshark
- 23. Limitations Warning messages generated in Wireshark
- 24. Countermeasures 05 Countermeasures to be taken against network steg
- 25. Countermeasures Encryption Encrypting network packets to avoid steg. SSL & TLS etc Network monitoring Identify unusual behavior or anomalies. NIDS and NBA etc Traffic Analysis Analysing patterns using Sniffing tools Steg detection tools Various tools are available to detect steganography. 1 2 4 3
- 26. References 1) Alsaffar, Hassan, & Daryl. (2015). Covert channel using the IP timestamp option of an IPv4 packet. The International Conference on Electrical and Bio-medical Engineering, 48-51. 2) Bedi, P., & Dua, A. (2020). Network Steganography using the Overflow Field of Timestamp. Procedia Computer Science, 1810-1818. 3) Handel, G, T., & Stanford, M. T. (1996). Hiding Data in the OSI Network Model. ` 4) Rowland, & H, C. (1997). Covert channels in the TCP/IP protocol suite. First Monday. 5) Soni, T. (2020). Moving target network steganography. Theses and Dissertations, 2850. 6) Trabelsi, Zouheir, & Imad , J. (2010). Covert file transfer protocol based on the IP record route option. Journal of Information Assurance and Security, 64-73. 7) http://datahide.org/BPCSe/applications-e.html
- 27. CREDITS: This presentation template was created by Slidesgo, and includes icons by Flaticon, and infographics & images by Freepik Any questions? Thanks! Please keep this slide for attribution
- 28. Say goodbye to GHABRAHAT