EFF's “Yellow Dots of Mystery” (2008) • Hacker News Board

Re: EFF's “Yellow Dots of Mystery” (2008)

#31

Post by deeviant » Thu, Mar 26, 2015, 5:56 PM UTC

NSA advocate: But it's OK, only the NSA can decode the data and they only use the data for legitimate nation security.

Some nerd: The code has been cracked and anybody can download a program to decode them, giving access to private and possible sensitive data to anybody who wants it.

NSA Advocate: Hmm, next time will make the code harder to crack or something other than stopping to coercing businesses from building in far-from-impenetrable back doors into public consumer products that are used by hundreds of millions.

Re: EFF's “Yellow Dots of Mystery” (2008)

#32

Post by anon4 » Thu, Mar 26, 2015, 7:16 PM UTC

nmridul wrote: post #14

Time to start a Paper company with pre-printed random yellow dots in it... The pre-printed dots should confuse the hell out of the Printer-printed dots....

Or you could print some garbage in the margins using several different printers, ending up with a pattern that can't be read unambiguously.

Re: EFF's “Yellow Dots of Mystery” (2008)

#33

Post by msandford » Thu, Mar 26, 2015, 8:51 PM UTC

arobertson wrote: post #25

msandford wrote: post #13

Earlier quoted context omitted.

Because you can't print counterfeit currency with black and white, which is ostensibly the reason the whole thing got started.

Couldn't you replace the black ink with green ink and then print in "Black and White" mode?

My guess is that you wouldn't get the shades right. Maybe with a lot of trial-and-error, but at some point it's easier to just make some printing plates and go that route. Either way the paper is the real problem.