kyak changed the topic of #qi-hardware to: Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben/atusb 802.15.4 wireless, anelok and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware
<DocScrutinizer05> or you create a true binary to extract the hidden data, and name it 123 or dir or whatever you like
<DocScrutinizer05> ssh -i <(x goatse.jpg) then
<DocScrutinizer05> s/x /dir /
<qi-bot> DocScrutinizer05 meant: "ssh -i <(dir goatse.jpg) then"
<DocScrutinizer05> if you're smart, you make it spit out "%s isn't a directory" to STDERR, and other than that silently fail when it can't find your magic searchstring that marks the beginning of the hidden data
* DocScrutinizer05 thinks "do that on android" and shudders
<wpwrak> anyway, good steganography would use something like: len = encrypt(buffer, key, data); p = image; for (i = 0; i != len; i++) for (j = 0; j != 8; j++) *p++ = (*p & ~1) | !!((buffer[i] >> j) & 1);
<wpwrak> where "encrypt" would preferably have no easily recognized static content (header or such)
<DocScrutinizer05> looks good but you don't want that in any plaintext file on your device, right?
<wpwrak> yes, you don't carry such sophisticated hacker tools with you when crossing the border :)
<DocScrutinizer05> sure you could simply `mv my-preferred-stegano-tool dir`
<DocScrutinizer05> there are a few of them
<DocScrutinizer05> but you never know if customs aka homeland security has a special version of file(1) for finding any such suspicious tools, even when they are binaries
<DocScrutinizer05> don't know if ssh client is already suspicious to have on your linux device, but I don't see a less suspicious approach (except maybe browser embedded terminal)
<DocScrutinizer05> and that would create trouble from browser history, unless you take special care to enter such embedded terminal only via 'interactive content' and not via a special URL
<DocScrutinizer05> wget http://wstaw.org/m/2017/02/13/Test.jpg -O -|grep -a -A99 begin |uudecode
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<DocScrutinizer05> wpwrak: btw for your stegano above you want png or sth like that, for sure not jpg or any other compressed format ;-)
<DocScrutinizer05> bmp
<DocScrutinizer05> wav
<DocScrutinizer05> .wav is excellent for leat-significant-bit stegano, using 16bit wordsize
<DocScrutinizer05> least*
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<wpwrak> yeah, jpeg is a little harder :)
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