unforum

[Sasuntsi Davit]

[SPEC] pp7.jpg image on the second page 'indexB.html'

[Nik_Doof]

regards to seperate stegged photos, i would be possible in a uncompressed file format...but as its a jpeg the global recompression of the image would of killed any stegging when they was combined in a single image.

[Sasuntsi Davit]

it doesn't work with bitmaps though, even though they are not compresses.

I was also thinking that one could make the compiled stegged image in a bitmap/uncompressed file, and then compress it into a jpeg. then to get the stegged pic back, all you would have to do is decompress it. however, it hasn't worked for me because during the process of the conversion/compression the redundant stegged data part gets destroyed, even though it holds colour/hue/saturation etc info...

[AnthraX101]

I can help you out a little, the pp7.jpg file is not stegged with camouflage. Camouflage (and many of its other low security brothers) simply appends data to the end of the JPEG file. A normal JPEG file ends in the bytes 0xFFD9, one with camouflage data in it will not.

AnthraX101

[kelsey_requiem]

i tested it with stegdetect, and says it's negative. the options i used were:

[kelsey_requiem]

i might be late with this, but
http://www.projectsyzygy.com/images/psyzygynomore2.jpg appears to be stegged.
i used the same method as above.

i'm going to see if i can break it.

[Sasuntsi Davit]

[kelsey_requiem]

not yet... my computer crashed during the dictionary attack. but i don't trust dict attacks anyway, i wanna bruteforce it .

[Nik_Doof]

I'll also get my comp bruting it when i get home....

Could we of missed something so obvious!?!

[edit: errr postcard code as the key!?]

[beano³]

Oh my oh my...me prays it dosn't come out with www.perplexcity.com if anything

[Chris K]

Can someone explain stegging to me?

Extra stuff is put on the end of a picture file?

[nitefoll]

Try here:

http://www.webopedia.com/TERM/S/steganography.html

[burningsquid]

I ran stegbreak with the american-english wordlist and the standard rules list. It returned no embeds.

There might be something there, but it's not in my wordlist.

[Sasuntsi Davit]

since it is pregame stuff, i suspect that the dictionary attacks won't work, because the password will probably be a number...like someone said, maybe the number on the postcard, or the numebers from the luggage tag on the projectsyzygy site.

can you make your own dictionary in stegbreak, becuase then you can input all the numbers we have found so far and get the program to try and get the hidden message from the pic.

However, i suspect that stegdetect could have picked up a false positive, because you can see that in two instances in the image, there are comparatively large areas where there is a sharp contrast in colour (the white checker thing that covers the airport photo and the bottom right of the image)....

hopefully, that is not the case...and i don't think that the hidden message will be www.perlpexcity.com since it points to a link from the website....there would be no point of encoding that.

[burningsquid]

I've started putting together a dictionary file. Here's what i have so far