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Groups > comp.security.pgp.discuss > #69

Re: GPG Question on Symmetric Key Input

From Bohgosity BumaskiL <brewhaha@freenet.edmonton.ab.ca>
Newsgroups comp.security.pgp.discuss
Subject Re: GPG Question on Symmetric Key Input
Date 2011-06-23 03:17 -0600
Organization BrewJay's Babble Bin
Message-ID <96gel5F70vU1@mid.individual.net> (permalink)
References <cf00d484-2c54-4210-8fae-2d790f6b5a43@gu8g2000vbb.googlegroups.com> <94684jF3lbU1@mid.individual.net> <8415d78c-6208-463a-826a-a5ed707ebd87@n10g2000yqf.googlegroups.com>

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
 
GPG and PGP use a hash on the symmetric key you enter,

because the hash contains more entropy: It is
always 128 bits of enhanced randomness, so the
best reason for hashing your keystrokes is because
people are not always very creative with their
pass-phrases. Phil Zimmerman coined that term,
because even after he did the work of hashing
pass-phrases, he wasn't convinced that people
would always come up with sixteen letterz for
their security, AND it was hard to prove that
hashing a key was effective against short or
sloppy symmetric keys.

I imajin that you want to use a key with all
zeros to test the symmetric encryption method.
Well...your final analysis should include the
effect of hashing your zeros.
_______
http://ecn.ab.ca/~brewhaha/ BrewJay's Babble Bin
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
 
iQCVAwUBTgMEjR47apzXdID2AQJIBwP+K/z8fgdmspRcvWNvlepNigk8MIbv6GDd
o+GqWs8DTQ2WvjA+4pdh992SfpVqrXOAhyAezQ9KrJ/CmUCX3cri5Rv3LkHUN3Sw
dpR6K1xMbbettoJx9Lo9fCmm2iOgWEQyHd4irG9Xxs+AsOXuIVe2sPOxi5ayrLc+
7YuQrdxgbxg=
=g9wJ
-----END PGP SIGNATURE-----

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Thread

Re: GPG Question on Symmetric Key Input Jeffrey Goldberg <nobody@goldmark.org> - 2011-05-26 00:52 -0500
  Re: GPG Question on Symmetric Key Input Globemaker <alanfolmsbee@cabanova.com> - 2011-05-26 05:01 -0700
    Re: GPG Question on Symmetric Key Input Bohgosity BumaskiL <brewhaha@freenet.edmonton.ab.ca> - 2011-06-23 03:17 -0600
      Re: GPG Question on Symmetric Key Input Globemaker <alanfolmsbee@cabanova.com> - 2011-06-27 20:07 -0700
        Re: GPG Question on Symmetric Key Input "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2011-06-28 03:11 -0400
          Re: GPG Question on Symmetric Key Input Fritz Wuehler <fritz@spamexpire-201106.rodent.frell.theremailer.net> - 2011-06-29 12:47 +0200
            Re: GPG Question on Symmetric Key Input Globemaker <alanfolmsbee@cabanova.com> - 2011-08-19 04:36 -0700
              Re: GPG Question on Symmetric Key Input Otto Sykora <bggbflxben@tzk.pu> - 2011-08-28 13:22 +0200
              Re: GPG Question on Symmetric Key Input Jeffrey Goldberg <nobody@goldmark.org> - 2011-08-31 12:48 -0500
                Re: GPG Question on Symmetric Key Input "Thor Kottelin" <thor@anta.net> - 2011-09-01 00:18 +0300
                Re: GPG Question on Symmetric Key Input Jeffrey Goldberg <nobody@goldmark.org> - 2011-09-01 13:29 -0500
        Re: GPG Question on Symmetric Key Input Bohgosity BumaskiL <brewhaha@freenet.edmonton.ab.ca> - 2011-06-30 00:32 -0600
    Re: GPG Question on Symmetric Key Input Jeffrey Goldberg <nobody@goldmark.org> - 2011-07-09 02:41 -0500

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