JPEG image of Shakespeare which is also a zip file containing his complete works

Re:JPEG image of Shakespeare which is also a zip file contai... by AdmiralAsshat on Tuesday October 30, 2018 @08:51PM (#18342527)

This is hardly new. I remember collecting ebooks on 4chan circa 2005 via this method. The fact that it was a jpg allowed you to post it on the imageboard with the zip/RAR file therein containing a txt/doc/rtf of the ebook.

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Re:JPEG image of Shakespeare which is also a zip file contai... by DavidBuchanan on Tuesday October 30, 2018 @08:57PM (#18342555)

And yet, nobody has done the same for Twitter until now.

The difference is that twitter applies a series of operations to all uploaded image, stripping EXIF data, recompressing, etc., which would normally be difficult to work around.

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Re:JPEG image of Shakespeare which is also a zip file contai... by awirth on Tuesday October 30, 2018 @10:41PM (#18342957)

Did people do this back in the day? 4chan used to be totally fine with just uploading a jpeg concatenated with a zip, but I haven't seen this ICC profile trick before today.

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Re:JPEG image of Shakespeare which is also a zip file contai... by palunon on Wednesday October 31, 2018 @06:28AM (#18344514)

Well, 4chan served you the original file, so you didn't need to evade image processing at all

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Re:JPEG image of Shakespeare which is also a zip file contai... by goatsi on Tuesday October 30, 2018 @09:57PM (#18342781)

There is actually a greasemonkey script that lets you embed encrypted messages into pictures uploaded to imageboards, letting you carry on a side conversation this way. https://github.com/desudesutalk/desudesutalk/wiki/How-to-use...

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Re:JPEG image of Shakespeare which is also a zip file contai... by Fundlab on Tuesday October 30, 2018 @11:42PM (#18343168)

I suppose you're referring https://en.wikipedia.org/wiki/Steganography

There are lots of apps/software to do just that.

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Re:JPEG image of Shakespeare which is also a zip file contai... by code_duck on Tuesday October 30, 2018 @10:26PM (#18342891)

I recall discovering apparent image files that had a rar archive appended. Not sure if it’s the same method.

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