[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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



[email protected] (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     $
     [email protected]     $    via Finger.                      $