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| Title | Hide a message inside a picture (steganography) |
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| Description | This example shows how to hide a message inside a picture (steganography) in Visual Basic 6. The program hides information in the least significant bits of pseudo-randonly selected pixels. |
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| Keywords | steganography, hidden message, code |
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| Categories | Algorithms |
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For each bit in the message, the program picks a pseudo-random pixel in the image and pseudo-randomly picks the pixel's red, green, or blue component. It then sets the least significant bit in that component to 0 or 1 to encode the message bit.
See the code for further details. Also see the tutorial Steganography (Hidden in Plain Sight) for more information on steganography.
For more information on cryptography (but not steganography), see Bruce Schneier's excellent book Applied Cryptography.
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