Broken Image

moose · Post by **moose** » Fri Aug 26, 2011 1:00 pm

Are we supposed to find the one byte which is wrong by hand?

laz0r · Post by **laz0r** » Fri Aug 26, 2011 1:35 pm

No

I assume you know the file structure of a PNG - try following that through by hand and see if something's wrong.

moose · Post by **moose** » Tue Aug 30, 2011 1:37 pm

Well, I found the PNG (Portable Network Graphics) Specification, Version 1.2.

[edited because DaymItzJack though I would give too much information]

But my hex-editor has no possibility to jump to a certain byte and I don't want to count up to [edited]. Do you know a good hex editor for Linux (GNOME / Ubuntu)?

Edit: The tEXt chunk is not valid, as it should contain as its first data a keyword (source). But thats more than a single byte.

bsguedes · Post by **bsguedes** » Tue Aug 30, 2011 1:40 pm

You're so close

If your hex editor has a search function it should be enough.

moose · Post by **moose** » Tue Aug 30, 2011 2:07 pm

Thanks bsguedes

got it.

DaymItzJack · Post by **DaymItzJack** » Tue Aug 30, 2011 3:18 pm

Some of your posts are giving away a little too much information in my opinion.

rain1024 · Post by **rain1024** » Fri Jan 20, 2012 9:35 am

my hint: tEXt is ok, focus in another field.

Napoleon · Post by **Napoleon** » Wed Apr 27, 2016 1:12 am

isn't it Funny how one single corrupted byte can render the whole image useless. ?