hacker.org

[boom@gate bin]$ ./zsteg ../../../fuzz.bmp [?] 378054 bytes of extra data after image end (IEND), offset = 0x5c4c6 extradata:0 .. file: PC bitmap, Windows 3.x format, 420 x 300 x 24 [boom@gate bin]$ ./zsteg -E "extradata:0" ../../../fuzz.bmp > ../../../output.bmp [boom@gate bin]$ zsteg did...

Didn't know that stegsolve is able to detect something like this. What command line did you use?

I used gimp, modifying some color space settings (gamma)

Nice challenge! I wrote a PHP script (don't blame me for this :D ) to read the BMG file and output an PNG. <?php $file = "picnic.bmp"; $im = fopen($file, "rb"); $img = fread($im, filesize($file)); $headersize = 108; $temp = unpack("H*",$img); $hex = $temp[1]; $header = ...

There is always more than one way to do things ;-) Here is mine: 59.pl: #!/usr/bin/perl open (IN,"rfc3280.txt"); my $i; while (<IN>){ @arr = split / /, $_; for ($i=0;$i<=scalar(@arr);$i++) { if ($arr[$i] =~ /^\w{9}$/) { print $arr[$i]."\n"; } } } close (IN); Followed by bash &...

Right. Well, then I need to adjust my script and try again.

[later]: Damn typo. Got it now.

Hm. I found a prime (size 1000 < x < 1200) but it doesn't seem to be the right one. But my program cannot find another prime, which has that much digits :-/

Hm. I figured out what char to change. But it always says: '.....' is incorrect. My solution is 100% correct as any calculator gets the right result from the modified version. Any idea what could be wrong?

- Forget it. My position was off-by-one. It works now.

Still getting a 404.. :-/

Didn't even know, that *.swf can be decompiled..