1993-04-19 - Hellman’s Hints
Header Data
From: norm@netcom.com (Norman Hardy)
To: cypherpunks@toad.com
Message Hash: dcf7e86c93022dfae6c50e8adef794ba45bf7eb18819b373c7383f5808492a27
Message ID: <9304190831.AA17466@netcom4.netcom.com>
Reply To: N/A
UTC Datetime: 1993-04-19 08:31:45 UTC
Raw Date: Mon, 19 Apr 93 01:31:45 PDT
Raw message
From: norm@netcom.com (Norman Hardy)
Date: Mon, 19 Apr 93 01:31:45 PDT
To: cypherpunks@toad.com
Subject: Hellman's Hints
Message-ID: <9304190831.AA17466@netcom4.netcom.com>
MIME-Version: 1.0
Content-Type: text/plain
I presume that Hellman meant to say
"K1 and K2, and thence UK"
in place of "K1 and K2, and thence K" at least it makes sense that way.
A later posting from Hellman (I think) emmended the description
of the transmitted message from
E{ E[M; K], E[K; UK], serial number; SK}
to E[M; K], E{ E[K; UK], serial number; SK}
If you know SK then you can compute (E[K; UK], serial number)
Then knowing UK (= K1+K2) you can compute K
from which you get M via E[M; K].
Thread
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- 1993-04-19 (Mon, 19 Apr 93 01:31:45 PDT) - Hellman’s Hints - norm@netcom.com (Norman Hardy)
- 1993-04-19 (Mon, 19 Apr 93 05:58:09 PDT) - Re: Hellman’s Hints - david@staff.udc.upenn.edu (R. David Murray)
- 1993-04-19 (Mon, 19 Apr 93 06:37:27 PDT) - Hellman’s Hints - Bill Sommerfeld <sommerfeld@orchard.medford.ma.us>