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X-Original-To: cryptography@metzdowd.com Date: Fri, 3 Jan 2014 11:08:15 -0800 (PST) From: "Joe St Sauver" <joe@oregon.uoregon.edu> To: zenadsl6186@zen.co.uk X-VMS-To: SMTP%"zenadsl6186@zen.co.uk" Cc: cryptography@metzdowd.com Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com Hi, Peter Fairbrother commented: #One technique I'm told is still in use is to affix glitter in random #patterns in clear epoxy to missile and/or warhead parts, then shine #lights on it from variable positions and compare the return sparkle #images to a known set for that patch. Very hard to forge. And that technique was even covered by Wired, albeit with a different context: "Don't Want Your Laptop Tampered With? Just Add Glitter Nail Polish" http://www.wired.com/threatlevel/2013/12/better-data-security-nail-polish/ Regards, Joe _______________________________________________ The cryptography mailing list cryptography@metzdowd.com http://www.metzdowd.com/mailman/listinfo/cryptography
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