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An '''illegal number''' is a number that represents information which is illegal to possess, utter, propagate, or otherwise transmit in some ]. Any piece of digital information is representable as a number; consequently, if communicating a specific set of information is illegal in some way, then the number may be illegal as well.<ref name=carmody2>{{cite web |author=Phil Carmody |title=An Executable Prime Number? | url=http://asdf.org/~fatphil/maths/illegal.html |accessdate=2007-05-08 |quote=Maybe I was reading something between the lines that wasn't there, but if arbitrary programs could be expressed as primes, the immediate conclusion is that all programs, including ones some people wished didn't exist, can too. I.e. the so called 'circumvention devices' of which my previous prime exploit was an example. |archiveurl = https://web.archive.org/web/20070329055313/http://asdf.org/~fatphil/maths/illegal.html |archivedate = 2007-03-29}}</ref><ref name=reg20010319>{{cite news | author=Thomas C Greene |title=DVD descrambler encoded in ‘illegal’ prime number |work=] |date=2001-03-19 |url=https://www.theregister.co.uk/2001/03/19/dvd_descrambler_encoded_in_illegal/ |quote=The question, of course, is whether an interesting number is illegal merely because it can be used to encode a contraband program. |accessdate=2007-05-08}}</ref><ref>{{cite web|url=http://primes.utm.edu/glossary/page.php?sort=Illegal|title=The Prime Glossary: illegal prime|quote=The bottom line: If distributing code is illegal, and these numbers contain (or are) the code, doesn't that make these number illegal?|accessdate=2007-05-09}}</ref>


== Background == == Background ==

Revision as of 22:45, 14 December 2018

Hello

Background

A number may represent some type of classified information or trade secret, legal to possess only by certain authorized persons. An AACS encryption key (09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0) that came to prominence in May 2007 is an example of a number claimed to be a secret, and whose publication or inappropriate possession is claimed to be illegal in the United States. It allegedly assists in the decryption of any HD DVD or Blu-ray Disc released before this date. The issuers of a series of cease-and-desist letters claim that the key itself is therefore a copyright circumvention device, and that publishing the key violates Title 1 of the US Digital Millennium Copyright Act.

In part of the DeCSS court order and in the AACS legal notices, the claimed protection for these numbers is based on their mere possession and the value or potential use of the numbers. This makes their status and legal issues surrounding their distribution quite distinct from that of copyright infringement.

Any image file or an executable program can be regarded as simply a very large binary number. In certain jurisdictions, there are images that are illegal to possess, due to obscenity or secrecy/classified status, so the corresponding numbers could be illegal.

In 2011 Sony sued George Hotz and members of fail0verflow for jailbreaking the PlayStation 3. Part of the lawsuit complaint was that they had published PS3 keys. Sony also threatened to sue anyone who distributed the keys. Sony later accidentally tweeted an older dongle key through its fictional Kevin Butler character.

Flags and steganography

The PlayStation 3 edition of the free speech flag

As a protest of the DeCSS case, many people created "steganographic" versions of the illegal information (i.e. hiding them in some form in flags etc.). Dave Touretzky of Carnegie Mellon University created a "Gallery of DeCSS descramblers". In the AACS encryption key controversy, a "free speech flag" was created. Some illegal numbers are so short that a simple flag (pictured to the right) could be created by using triples of components as describing red-green-blue colors. The argument is that if short numbers can be made illegal, then anything based on those numbers also becomes illegal, like simple patterns of colors, etc.

In the Sony Computer Entertainment v. Hotz case, many bloggers (including one at Yale Law School) made a "new free speech flag" in homage to the AACS free speech flag. Most of these were based on the "dongle key" rather than the keys Hotz actually released. Several users of other websites posted similar flags.

Other examples

There are other contexts in which smaller numbers have run afoul of laws or regulations, or drawn the attention of authorities.

  • In 2012, it was reported that the numbers 89, 6, and 4 each became banned search terms on search engines in China, because of the date (1989-06-04) of the June Fourth Massacre in Tiananmen Square.
  • Due to the association with gangs, in 2012 a school district in Colorado banned the wearing of jerseys that bore the numbers 18, 14, or 13 (or the reverse, 81, 41, or 31).
  • In 2017, far-right Slovak politician Marian Kotleba was criminally charged for donating 1,488 euro to a charity.

See also

References

  1. "AACS licensor complains of posted key". Chilling Effects. Retrieved 2007-05-08. Illegal Offering of Processing Key to Circumvent AACS Copyright Protection are thereby providing and offering to the public a technology, product, service, device, component, or part thereof that is primarily designed, produced, or marketed for the purpose of circumventing the technological protection measures afforded by AACS (hereafter, the "circumvention offering"). Doing so constitutes a violation of the anti-circumvention provisions of the Digital Millennium Copyright Act (the "DMCA")
  2. ^ "EFF: Memorandum Order, in MPAA v. Reimerdes, Corley and Kazan (NY; Feb. 2, 2000)". w2.eff.org. Retrieved 9 August 2017.
  3. "Prime Curios: 48565...29443 (1401-digits)". Retrieved 2007-05-09. What folks often forget is a program (any file actually) is a string of bits (binary digits)—so every program is a number.
  4. "Criminal Justice Act 1988 + amendments". Retrieved 2007-05-09.
  5. Cite error: The named reference carmody2 was invoked but never defined (see the help page).
  6. Wells, David (2011). "Illegal prime". Prime Numbers: The Most Mysterious Figures in Math. Wiley. pp. 126–127. ISBN 9781118045718.
  7. Sony follows up, officially sues Geohot and fail0verflow over PS3 jailbreak. Nilay Patel, Engadget (2011-01-12). Retrieved on 2011-02-16.
  8. "Sony lawyers now targeting anyone who posts PlayStation 3 hack". Arstechnica. February 8, 2011.
  9. "PS3 'jailbreak code' retweeted by Sony's Kevin Butler". Engadget. February 9, 2011.
  10. 46-dc-ea-d3-17-fe-45-d8-09-23-eb-97-e4-95-64-10-d4-cd-b2-c2 Archived 2011-03-10 at the Wayback Machine by Ben S, Yale Law Tech, 2011 March
  11. See File:Free-speech-flag-ps3.svg description.
  12. MacKinnon, Mark (2012-06-04). "Banned in China on Tiananmen anniversary: 6, 4, 89 and 'today'". The Globe and Mail. Retrieved 2015-03-09.
  13. Meyer, Jeremy P. (2012-09-05). "Greeley school ban on gang numbers includes Peyton Manning's 18". The Denver Post. Retrieved 2015-03-09.
  14. "Police charge leader of Slovak far-right party with extremism". 28 July 2017. Retrieved 9 August 2017 – via Reuters.

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