export-a-crypto-system sig
This is a perl program which implements RSA encryption and
decryption, and is small enough to use as a signature file. Peter
Junger, a law professor in the US, obtained from the US Commerce
department a
written statement
ruling that this program must not be exported from the US.
Please use this sig file:
<![CDATA[
-export-a-crypto-system-sig -RSA-3-lines-PERL
#!/bin/perl -sp0777i<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<j]dsj
$/=unpack('H*',$_);$_=`echo 16dio\U$k"SK$/SM$n\EsN0p[lN*1
lK[d2%Sa2/d0$^Ixp"|dc`;s/\W//g;$_=pack('H*',/((..)*)$/)
]]>
or more recent 2 line version:
<![CDATA[
print pack"C*",split/\D+/,`echo "16iII*o\U@{$/=$z;[(pop,pop,unpack"H*",<>
)]}\EsMsKsN0[lN*1lK[d2%Sa2/d0<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<J]dsJxp"|dc`
]]>
List of versions, and explanations of how it works
here
PERL HACKERS:
The quest for most diminutive munitions program
How to use the program
The T-shirt of the sig
- The above code on a T-shirt. Get your
munitions-T here. This
T-shirt used to be technically illegal to export from the US.
The cartoon of the t-shirt of the sig
- Dr Fun cartoon about the shirt
How to become an Arms Trafficker
Become an
Arms-Trafficker in one easy step with this great way to register
your protest of ITAR by
Vince Cate.
Just click to submit the form and join in the protest. Lots of
excellent links. Have you exported RSA today? Includes an option to
email a protest letter to US president.
The tattoo of the sig
- Richard White
<maldoror@pacificnet.net> has a tattoo
of the rsa .sig on his fore arm.
(click image for larger image)
- Cancer Omega
<comega@sekurity.org> has a tattoo on his chest.
(click image for larger image)
- James Melvin
<jmelvin2@bellsouth.net> has a tattoo on his arm.
(click image for larger image)
- Guess that's the end of any foreign trips for them :-)
Fun with HTML
Media appearances
- (label) New York Times by Peter Lewis (US)
- (sig)Computer Shopper by
Charlie Stross (UK)
- (sig) New Scientist by Wendy Grossman (UK)
- (shirt) Wired (magazine, US)
- (shirt) Canal+ TV show Nulle Part Alleurs (France)
- (shirt) Nova magazine (France)
- (sig, shirt) Planette Internet magazine (France)
- (shirt) BBC TV, the Learning Zone (UK)
- Pictures of the t-shirt in
the media
Political/legal background
- Why it was illegal to export
this 3 line program from the US
- That weird beast which was the US ITAR
crypto restrictions (some aspects still remain after the crypto
liberalization)
- Phil Zimmermann, author of PGP was the subject of a grand jury
investigation for allegedly violating ITAR.
- Jerome Thorel
<jt@freenix.fr>'s
page on the
sig and shirt in the context of the French laws on encryption.
- Phil Karn
is challening the constitutionality of ITAR in court with the
amusing
Applied Cryptography disk case.
Other hacks using the perl-rsa code
Other diminutive crypto hacks
Comments, html bugs to
(Adam Back) at
<adam@cypherspace.org>
