cryptoanarchy.wiki

Arise, you have nothing to lose but your barbed wire fences!

1996-05-02 - Re: [Fwd: Cylink can export 128-bit DH?]

Header Data

From: mpd@netcom.com (Mike Duvos)
To: cypherpunks@toad.com
Message Hash: c4365d8837b5aee534c2fde40888de287fb2648d0c31b00533b8aeecf7a9f689
Message ID: <199605012312.QAA11109@netcom14.netcom.com>
Reply To: <199605011919.MAA27020@netcom8.netcom.com>
UTC Datetime: 1996-05-02 05:32:32 UTC
Raw Date: Thu, 2 May 1996 13:32:32 +0800

Raw message

From: mpd@netcom.com (Mike Duvos)
Date: Thu, 2 May 1996 13:32:32 +0800
To: cypherpunks@toad.com
Subject: Re: [Fwd: Cylink can export 128-bit DH?]
In-Reply-To: <199605011919.MAA27020@netcom8.netcom.com>
Message-ID: <199605012312.QAA11109@netcom14.netcom.com>
MIME-Version: 1.0
Content-Type: text/plain


frantz@netcom.com (Bill Frantz) writes:

 > Most cryptographic experts recommend Triple DES, encrypting
 > the data 3 times with 3 different keys.

It's actually encrypted three times with two keys comprising
112 bits of keyspace, using a decrypt on one key sandwiched
between two encrypts using the other.  This prevents a "man
in the middle" attack, which would be possible if only two
DES encryptions were used, one for each key.

--
     Mike Duvos         $    PGP 2.6 Public Key available     $
     mpd@netcom.com     $    via Finger.                      $

Thread