This document summarizes different types of steganography including image, audio, and video steganography. It describes steganography as hiding a secret message within an ordinary file like an image, audio, or video. For image steganography, it discusses the least significant bit insertion method of hiding text or an image within another image. It also describes audio steganography techniques like least significant bit encoding and an application called STEGA that implements different steganography methods in Python.
Drubbing an Audio Messages inside a Digital Image Using (ELSB) MethodIOSRJECE
It is mainly focused today to transfer the messages secretly between two communication parties. The message from the sender to receiver should be kept secret so that the information should not known by anyone. Secret is the important thing today. The technique that is used for secure communication is called as steganography and it means that to hide secret information into innocent data. Digital images are ideal for hiding secret information. An image containing a secret message is called a cover image. In this paper will discuss about secret transformation of audio messages. The audio messages are hidden inside a cover image so no one can hack the audio but the audio should be encrypted before hidden inside the image
Project presentation on Image Steganography using MATLAB. Project under Digital Design, Signals and Systems and Communication System.
Tool Used - MATLAB
A Steganography LSB technique for hiding Image within Image Using blowfish En...IJRES Journal
Steganography refers to information or a file that has been hidden inside a digital image, video
or audio file. There are different carrier file formats can be used such as Text Steganography, Image
Steganography, Audio/Video Steganography, but Image Steganography are the most popular because of their
frequency on the Internet. It is the first common methods used for hiding the information in the cover image.
The Least Significant Bit (LSB) steganography is one such technique in which least significant bit of the image
is replaced with data bit. steganographic algorithm for 8bit (gray scale) or 24 bit (colour image) is presented in
this paper. Sometime steganography will not cover the total security of secret massage. So an additional security
need to the secret massage. For this purpose blowfish encryption Algorithm is used in the proposed
Steganographic system This work is concerned with implementing Steganography for images, with an
improvement security and image quality.
The experimental result shows that the stego-image is visually indistinguishable from the original cover-image
It comes under the assumption that if the feature is visible, the point of attack is evident, thus the goal here is
always to cover up the very existence of the embedded data. and that the algorithm has a high capacity and a
good invisibility.
The presentation gives a brief overview and history about steganography and discusses the various types and techniques of steganography.
The types of steganography included are:
Text
Image
Audio
Enhancement of Payload Capacity for Image Steganography based on LSBEditor IJCATR
In this result paper we will show the implementation result of our proposed method. Steganography is an art and
science of Hide the data in a cover image using some techniques that it remains undetected by the unauthorized access. We hide
the data in a manner that the stego image looks like a single entry by any third person. No one has doubt that the image is the
stego image. We use some different methods that keep data to be secret. It is a powerful tool for security with which we can
keep the data secret behind an object. An object may be Text, Audio, Video, and Image. The factor that affects the steganography
methods are PSNR, MSE, Payload Capacity and BER. Security of data will be shown by the Histogram of picture.
Drubbing an Audio Messages inside a Digital Image Using (ELSB) MethodIOSRJECE
It is mainly focused today to transfer the messages secretly between two communication parties. The message from the sender to receiver should be kept secret so that the information should not known by anyone. Secret is the important thing today. The technique that is used for secure communication is called as steganography and it means that to hide secret information into innocent data. Digital images are ideal for hiding secret information. An image containing a secret message is called a cover image. In this paper will discuss about secret transformation of audio messages. The audio messages are hidden inside a cover image so no one can hack the audio but the audio should be encrypted before hidden inside the image
Project presentation on Image Steganography using MATLAB. Project under Digital Design, Signals and Systems and Communication System.
Tool Used - MATLAB
A Steganography LSB technique for hiding Image within Image Using blowfish En...IJRES Journal
Steganography refers to information or a file that has been hidden inside a digital image, video
or audio file. There are different carrier file formats can be used such as Text Steganography, Image
Steganography, Audio/Video Steganography, but Image Steganography are the most popular because of their
frequency on the Internet. It is the first common methods used for hiding the information in the cover image.
The Least Significant Bit (LSB) steganography is one such technique in which least significant bit of the image
is replaced with data bit. steganographic algorithm for 8bit (gray scale) or 24 bit (colour image) is presented in
this paper. Sometime steganography will not cover the total security of secret massage. So an additional security
need to the secret massage. For this purpose blowfish encryption Algorithm is used in the proposed
Steganographic system This work is concerned with implementing Steganography for images, with an
improvement security and image quality.
The experimental result shows that the stego-image is visually indistinguishable from the original cover-image
It comes under the assumption that if the feature is visible, the point of attack is evident, thus the goal here is
always to cover up the very existence of the embedded data. and that the algorithm has a high capacity and a
good invisibility.
The presentation gives a brief overview and history about steganography and discusses the various types and techniques of steganography.
The types of steganography included are:
Text
Image
Audio
Enhancement of Payload Capacity for Image Steganography based on LSBEditor IJCATR
In this result paper we will show the implementation result of our proposed method. Steganography is an art and
science of Hide the data in a cover image using some techniques that it remains undetected by the unauthorized access. We hide
the data in a manner that the stego image looks like a single entry by any third person. No one has doubt that the image is the
stego image. We use some different methods that keep data to be secret. It is a powerful tool for security with which we can
keep the data secret behind an object. An object may be Text, Audio, Video, and Image. The factor that affects the steganography
methods are PSNR, MSE, Payload Capacity and BER. Security of data will be shown by the Histogram of picture.
LSB Based Image Steganography for Information Security Systemijtsrd
Information hiding in a cover file is one of the most modernized and effective ways for transferring secret message from sender to receiver over the communication channel. There are many steganographic techniques for hiding secret message in image, text, audio, video and so on. Image Steganography is also one of the common methods used for hiding the information in the cover image. In this research work, the secret message is hidden in a cover image file using image steganography. LSB is very efficient algorithm used to embed the information in a cover file. The LSB based image steganography with various file sizes is analyzed and illustrated their results. Bitmap .bmp image is used as a cover image file to implement the proposed system. The detail Least Significant Bit LSB based image steganography is introduced. In this paper, the new embedding algorithm and extracting algorithm are presented. While embedding the secret message in a cover image file, the starting embedded pixel is chosen according to public shared key between sender and receiver. The original cover image and embedded image with secret message are analyzed with PSNR values and SNR values to achieve security. The resulting embedded image shows the acceptable PSNR and SNR values while comparing with the original cover image. The proposed system can help the information exchanging system over communication media. Aung Myint Aye "LSB Based Image Steganography for Information Security System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-1 , December 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18995.pdf
http://www.ijtsrd.com/computer-science/computer-security/18995/lsb-based-image-steganography-for-information-security-system/aung-myint-aye
International Journal of Computational Engineering Research(IJCER)ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
Implementation of Securing Confidential Data by Migrating Digital Watermarkin...IJRES Journal
This paper introduces an algorithm of digitalwatermarking based on Discrete Wavelet Transform (DWT) and Steganography Based on Least Significant Bit(LSB). Steganography is a branch of information hiding. According to the characters of human vision, the information of digital watermarking which has been discrete wavelet transformed, is put into the high frequency band of the image which has been wavelet transformed. Then distills the digital watermarking with the help of the original image and the watermarking image. The steganography is the process of concealing one medium of information within another. There are lots of techniques available to achieve steganography like least significant bit insertion method and transform domain technique. This project implements the new method selecting a cover image and applying the watermarking for the copyright protection and embedding the secrete file into the watermarked image providing password with encryption method and sending to other system through the network.
LSB Based Image Steganography for Information Security Systemijtsrd
Information hiding in a cover file is one of the most modernized and effective ways for transferring secret message from sender to receiver over the communication channel. There are many steganographic techniques for hiding secret message in image, text, audio, video and so on. Image Steganography is also one of the common methods used for hiding the information in the cover image. In this research work, the secret message is hidden in a cover image file using image steganography. LSB is very efficient algorithm used to embed the information in a cover file. The LSB based image steganography with various file sizes is analyzed and illustrated their results. Bitmap .bmp image is used as a cover image file to implement the proposed system. The detail Least Significant Bit LSB based image steganography is introduced. In this paper, the new embedding algorithm and extracting algorithm are presented. While embedding the secret message in a cover image file, the starting embedded pixel is chosen according to public shared key between sender and receiver. The original cover image and embedded image with secret message are analyzed with PSNR values and SNR values to achieve security. The resulting embedded image shows the acceptable PSNR and SNR values while comparing with the original cover image. The proposed system can help the information exchanging system over communication media. Aung Myint Aye "LSB Based Image Steganography for Information Security System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-1 , December 2018, URL: http://www.ijtsrd.com/papers/ijtsrd18995.pdf
http://www.ijtsrd.com/computer-science/computer-security/18995/lsb-based-image-steganography-for-information-security-system/aung-myint-aye
International Journal of Computational Engineering Research(IJCER)ijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
Implementation of Securing Confidential Data by Migrating Digital Watermarkin...IJRES Journal
This paper introduces an algorithm of digitalwatermarking based on Discrete Wavelet Transform (DWT) and Steganography Based on Least Significant Bit(LSB). Steganography is a branch of information hiding. According to the characters of human vision, the information of digital watermarking which has been discrete wavelet transformed, is put into the high frequency band of the image which has been wavelet transformed. Then distills the digital watermarking with the help of the original image and the watermarking image. The steganography is the process of concealing one medium of information within another. There are lots of techniques available to achieve steganography like least significant bit insertion method and transform domain technique. This project implements the new method selecting a cover image and applying the watermarking for the copyright protection and embedding the secrete file into the watermarked image providing password with encryption method and sending to other system through the network.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
3. Introduction
The word Steganography is derived from the Greek words –
steganos (meaning hidden or covered) and the graph (meaning to
write).
Steganography is the practice of hiding a file, image, or video
within another file, message, image or video.
Steganography can also be referred as the technique of hiding
secret data within an ordinary, non secret, file or message in order
to avoid detection; the secret data is then extracted at its
destination.
4. Cryptography
vs
Steganography
Cryptography and steganography are both methods used
to hide or protect secret data. However, they differ in the
respect that cryptography makes the data unreadable, or
hides the meaning of the data, while steganography hides
the existence of the data.
Cryptography is similar to writing a letter in a secret
language: people can read it, but won’t understand what it
means. However, the existence of a (probably secret)
message would be obvious to anyone who sees the letter,
and if someone either knows or figures out your secret
language, then your message can easily be read.
If you were to use steganography in the same situation, you
would hide the letter inside a pair of socks that you would be
gifting the intended recipient of the letter. Only the intended
recipient knows what to look for, and finds the message
hidden in them.
5. The BEST way
The use of Steganography can be combined with encryption as an
extra step for hiding or protecting data.
Cryptography is often used to supplement the security
offered by steganography. Cryptography algorithms are
used to encrypt secret data before embedding it into cover
files.
Cryptography can be used as extra layer of security even
over the existence of file ie. Steganography
6. Steganographic
Model
As the image depicts, both cover file(X) and secret message(M) are
fed into steganographic encoder as input. Steganographic Encoder
function, f(X,M,K) embeds the secret message into a cover file.
Resulting Stego Object looks very similar to your cover file, with no
visible changes. This completes encoding. To retrieve the secret
message, Stego Object is fed into Steganographic Decoder.
7. Least
Significant Bit
(LSB)
LSB algorithm is a classic Steganography method used to
conceal the existence of secret data inside a “public” cover.
The LSB or “Least Significant Bit”, in computing terms,
represents the bit at the unit’s place in the binary
representation of a number.
For example, we can represent the decimal number 170 in
binary notation as 10101010. As shown in the figure, the least
significant bit, in this case, is 0.
In the simplistic form, LSB algorithm replaces the LSB of
each byte in the “carrier” data with one bit from the “secret”
message.
8. Least
Significant Bit
(LSB)
This concept is visualized in the diagram below.
The sender performs “embedding” of the bits of secret
messages onto the carrier data byte-by-byte. Whereas the
receiver performs the “extraction” procedure by reading LSB
bits of each byte of received data, this way the receiver
reconstructs the secret message.
9. Least
Significant Bit
(LSB)
Isn’t this corrupting the carrier signal?
Yes, but the main idea here is that we are trying to exploit the
human perception of the integrity of the carrier signal. LSB
steganography is very popular for Image Steganography, i.e.
hiding secrets in images. And the change in LSB affects the
color just so slightly that the change in color is not generally
perceptible to the human eye. However, the human ear is
more sensitive to slights changes in sound and hence the
“noise” that we are adding would have a higher chance of
being noticed. To overcome this problem of this trivial form of
LSB algorithm, many researchers have suggested variants
that increase robustness in the audio domain.
10. Typesof
Steganography
We have used for different types of Steganography techniques:
📃 | 🖼️ | 🎵 | 📹
1. Text in Image
2. Image in Image
3. Audio in Image
4. Video in Image
11. Image
Steganography
Text in Image, Image in Image come under Image
Steganography.
Hiding the data by taking the cover object as the image is
known as image steganography. In digital steganography,
images are widely used cover source because there are a
huge number of bits present in the digital representation of an
image. There are a lot of ways to hide information inside an
image. Common approaches include:
1. Least Significant Bit Insertion
2. Masking and Filtering
3. Redundant Pattern Encoding
4. Encrypt and Scatter
12. Image
Steganography
Each pixel contains three values which are Red, Green, Blue, these
values range from 0 to 255, in other words, they are 8-bit values. [4]
Let’s take an example of how this technique works, suppose you want
to hide the message “hi” into a 4x4 image which has the following
pixel values:
[(225, 12, 99), (155, 2, 50), (99, 51, 15), (15, 55, 22),(155, 61, 87), (63, 30,
17), (1, 55, 19), (99, 81, 66),(219, 77, 91), (69, 39, 50), (18, 200, 33), (25,
54, 190)]
Using the ASCII Table, we can convert the secret message into
decimal values and then into binary: 0110100 0110101.
Now, we iterate over the pixel values one by one, after converting
them to binary, we replace each least significant bit with that
message bits sequentially
e.g 225 is 11100001, we replace the last bit, the bit in the right (1) with
the first data bit (0) and so on.
This will only modify the pixel values by +1 or -1 which is not
noticeable at all.
The resulting pixel values after performing LSBS is as shown
below:[(224, 13, 99),(154, 3, 50),(98, 50, 15),(15, 54, 23),(154, 61,
87),(63, 30, 17),(1, 55, 19),(99, 81, 66),(219, 77, 91),(69, 39, 50),(18, 200,
33),(25, 54, 190)]
13. Audio
Steganography
Text in Audio comes under Audio Steganography.
In audio steganography, the secret message is embedded
into an audio signal which alters the binary sequence of the
corresponding audio file. Hiding secret messages in digital
sound is a much more difficult process when compared to
others, such as Image Steganography. Different methods of
audio steganography include:
• Least Significant Bit Encoding
• Parity Encoding
• Phase Coding
This method hides the data in WAV, AU, and even MP3
sound files.
14. Audio
Steganography
(LSB)
We will perform logical AND operation between each byte of
carrier audio (the “song”) and a bit mask that resets the LSB of
carrier byte.
Then we will perform a simple logical OR operation between the
modified carrier byte and the next bit (0 or 1) from the secret
message.
We will use .wav audio file format for our carrier song. Wave is one
of the most popular lossless compression format. Python has a
native library called “wave” that provides us basic tools to
manipulate audio data.
15. Video
Steganography
Text inVideo comes under Video Steganography.
In Video Steganography you can hide kind of data into digital
video format. The advantage of this type is a large amount of data
can be hidden inside and the fact that it is a moving stream of
images and sounds. You can think of this as the combination of
Image Steganography and Audio Steganography. Two main
classes of Video Steganography include:
• Embedding data in uncompressed raw video and compressing it
later
• Embedding data directly into the compressed data stream
16. OurApplication:
ST EGA
STEGA is a Python-Flask based webapp which includes the
functionality of Image Steganography, Audio Steganography &
Video Steganography in a single application.
Libraries used:
Image Steganography: opencv-python, stepic.
Audio Steganography: wave.
Video Steganography: stegano, subprocess, ffmpeg.
https://github.com/ADI-KOTKAR/Stega.git