Steganography is the art and science of hiding messages. Steganography is often combined with cryptography so that even if the message is discovered it cannot be read.
The word steganography is derived from the Greek words "steganos" and "graphein", which mean "covered" and "writing." Steganography, therefore, is covered writing.
Historical stenganography involved techniques such as disappearing ink or microdots. Modern steganography involves hiding data in computer files.
It is fairly easy to hide a secret message in a graphic file without obviously altering the visible appearance of that file.
Steganography is the art and science of hiding messages. Steganography is often combined with cryptography so that even if the message is discovered it cannot be read.
The word steganography is derived from the Greek words "steganos" and "graphein", which mean "covered" and "writing." Steganography, therefore, is covered writing.
Historical stenganography involved techniques such as disappearing ink or microdots. Modern steganography involves hiding data in computer files.
It is fairly easy to hide a secret message in a graphic file without obviously altering the visible appearance of that file.
JPHIDE and JPSEEK are programs which allow you to hide a file in a jpeg visual image. There are lots of versions of similar programs available on the internet but JPHIDE and JPSEEK are rather special. The design objective was not simply to hide a file but rather to do this in such a way that it is impossible to prove that the host file contains a hidden file. Given a typical visual image, a low insertion rate (under 5%) and the absence of the original file, it is not possible to conclude with
any worthwhile certainty that the host file contains inserted data. As the insertion percentage increases the statistical nature of the jpeg coefficients differs from "normal" to the extent that it raises suspicion. Above 15% the effects begin to become visible to the naked eye. Of course some images are much better than others when used a host file - plenty of fine detail is good. A cloudless blue sky over a snow covered ski paradise is bad. A waterfall in a forest is probably ideal.
MP3Stego will hide information in MP3 files during the compression process. The data is first compressed, encrypted and then hidden in the MP3 bit stream. Although MP3Stego has been written with steganographic applications in mind it might be used as a copyright marking system for MP3 files (weak but still much better than the MPEG copyright flag defined by the standard). Any opponent can uncompress the bit stream and recompress it; this will delete the hidden information (actually this is the only attack we know yet) but at the expense of severe quality loss.
Steghide is a steganography program that is able to hide data in JPG, BMP, WAV, and AU files. The color frequencies are not changed thus making the embedding resistant against first-order statistical tests.
Hydan steganographically conceals a message ito an executable. It exploits redundancy in the i386 instruction set by defining sets of functionally equivalent instructions. It then encodes information in machine code by using the appropriate instructions from each set. The executable filesize remains unchanged. The message is Blowfish encrypted with a user-supplied passphrase before being embedded.
The 1st method that We will Study Here Is Using command Prompt.
To hide a file behind a image file which means that if any one opens that image he will see the image only but if you open in a special way then you can open the hidden file behind the image.
So to hide the file behind a image open CMD.exe
1) Select an image to be used for hiding file behind the image.
2) Now select a file to hide behind the image and make it in .RAR format. With the help of the WinRAR.
3) And most important is that paste both the files on desktop and run the following command on the command
prompt.
4) And then type the following command.
{ cd } { Copy /b imagename.jpg + filename.rar finalnameofimage.jpg }
And then hit enter the file will be created with the file final file name of the image :D
The word steganography is derived from the Greek words "steganos" and "graphein", which mean "covered" and "writing." Steganography, therefore, is covered writing.
Historical stenganography involved techniques such as disappearing ink or microdots. Modern steganography involves hiding data in computer files.
It is fairly easy to hide a secret message in a graphic file without obviously altering the visible appearance of that file.
Steganography is the art and science of hiding messages. Steganography is often combined with cryptography so that even if the message is discovered it cannot be read.
The word steganography is derived from the Greek words "steganos" and "graphein", which mean "covered" and "writing." Steganography, therefore, is covered writing.
Historical stenganography involved techniques such as disappearing ink or microdots. Modern steganography involves hiding data in computer files.
It is fairly easy to hide a secret message in a graphic file without obviously altering the visible appearance of that file.
JPHIDE and JPSEEK are programs which allow you to hide a file in a jpeg visual image. There are lots of versions of similar programs available on the internet but JPHIDE and JPSEEK are rather special. The design objective was not simply to hide a file but rather to do this in such a way that it is impossible to prove that the host file contains a hidden file. Given a typical visual image, a low insertion rate (under 5%) and the absence of the original file, it is not possible to conclude with
any worthwhile certainty that the host file contains inserted data. As the insertion percentage increases the statistical nature of the jpeg coefficients differs from "normal" to the extent that it raises suspicion. Above 15% the effects begin to become visible to the naked eye. Of course some images are much better than others when used a host file - plenty of fine detail is good. A cloudless blue sky over a snow covered ski paradise is bad. A waterfall in a forest is probably ideal.
MP3Stego will hide information in MP3 files during the compression process. The data is first compressed, encrypted and then hidden in the MP3 bit stream. Although MP3Stego has been written with steganographic applications in mind it might be used as a copyright marking system for MP3 files (weak but still much better than the MPEG copyright flag defined by the standard). Any opponent can uncompress the bit stream and recompress it; this will delete the hidden information (actually this is the only attack we know yet) but at the expense of severe quality loss.
Steghide is a steganography program that is able to hide data in JPG, BMP, WAV, and AU files. The color frequencies are not changed thus making the embedding resistant against first-order statistical tests.
Hydan steganographically conceals a message ito an executable. It exploits redundancy in the i386 instruction set by defining sets of functionally equivalent instructions. It then encodes information in machine code by using the appropriate instructions from each set. The executable filesize remains unchanged. The message is Blowfish encrypted with a user-supplied passphrase before being embedded.
The 1st method that We will Study Here Is Using command Prompt.
To hide a file behind a image
.To hide a file behind a image file which means that if any one opens that image he will see the image only but if you open in a special way then you can open the hidden file behind the image.
So to hide the file behind a image open CMD.exe
1) Select an image to be used for hiding file behind the image.
2) Now select a file to hide behind the image and make it in .RAR format. With the help of the WinRAR.
3) And most important is that paste both the files on desktop and run the following command on the command
prompt.
4) And then type the following command.
{ cd } { Copy /b imagename.jpg + filename.rar finalnameofimage.jpg }
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