ASCII steganography on your pictures
Everyone knows ASCII art , which allows you to draw any pictures using standard ASCII encoding. At the same time, everyone knows steganography - the art of hiding information in files open to everyone in such a way that no one even has a clue about what to look for. And if it does, it won't be able to decode it, because strong cryptography is used.
Craftsmen for fun decided to cross these two technologies - ASCII-art and steganography. As a result, a new service appeared where you can upload your photo and documents up to 40 KB in size, and the program will generate an ASCII image with information securely encrypted in it (no one bothers to use a 128-bit key before being placed in an ASCII container).
For example, in this Habr's ASCII-logo with the size of 100x100 pixels, the entire text of this note is encoded. Other examples here . Each example can be decoded on a page with a decoder (just make a copy-paste of the image into the text form of the decoder).
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At the moment, due to the heavy server load, the maximum image size that is subjected to ASCII encoding has been reduced from the standard 200x200 pixels to 100x100.
Craftsmen for fun decided to cross these two technologies - ASCII-art and steganography. As a result, a new service appeared where you can upload your photo and documents up to 40 KB in size, and the program will generate an ASCII image with information securely encrypted in it (no one bothers to use a 128-bit key before being placed in an ASCII container).
For example, in this Habr's ASCII-logo with the size of 100x100 pixels, the entire text of this note is encoded. Other examples here . Each example can be decoded on a page with a decoder (just make a copy-paste of the image into the text form of the decoder).
')
At the moment, due to the heavy server load, the maximum image size that is subjected to ASCII encoding has been reduced from the standard 200x200 pixels to 100x100.
Source: https://habr.com/ru/post/49008/
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