1994-07-26 - more forward secrecy

Header Data

From: hughes@ah.com (Eric Hughes)
To: cypherpunks@toad.com
Message Hash: 8561a2376768632897b9c89edd5b567ceab068aef1c7581b65828b949a5752ea
Message ID: <9407261722.AA05924@ah.com>
Reply To: <199407260652.XAA14458@netcom8.netcom.com>
UTC Datetime: 1994-07-26 17:44:02 UTC
Raw Date: Tue, 26 Jul 94 10:44:02 PDT

Raw message

From: hughes@ah.com (Eric Hughes)
Date: Tue, 26 Jul 94 10:44:02 PDT
To: cypherpunks@toad.com
Subject: more forward secrecy
In-Reply-To: <199407260652.XAA14458@netcom8.netcom.com>
Message-ID: <9407261722.AA05924@ah.com>
MIME-Version: 1.0
Content-Type: text/plain


   But I leave nearly all PGP-encrypted messages to me in encrypted form,
   using the "decrypt to screen" option. So communicated and stored
   messages are largely the same.

This is exactly the situation I referred to yesterday.  It's extremely
common, I suspect.  Tim does it, I do it, and I've no reason to
believe that most people do it differently.

Keeping the messages around encrypted with your private key does _not_
have forward secrecy.  Forward secrecy is a valuable property, and it
behooves us to think about how to achieve it.

Eric

Thread

• Return to July 1994

• Return to “Berzerk <berzerk@xmission.xmission.com>”
• Return to “Bill & <sommerfeld@orchard.medford.ma.us>”
• Return to “Derek Atkins <warlord@MIT.EDU>”
• Return to “hughes@ah.com (Eric Hughes)”
• Return to “Michael Paul Johnson <mpj@netcom.com>”
• Return to “mpjohnso@nyx10.cs.du.edu (Michael Johnson)”
• Return to ““Perry E. Metzger” <perry@imsi.com>”
• Return to “Phil Karn <karn@qualcomm.com>”
• Return to “solman@MIT.EDU”

• Return to “tcmay@netcom.com (Timothy C. May)”

• 1994-07-22 (Fri, 22 Jul 94 16:49:15 PDT) - Gore’s “new and improved” key escrow proposal - mpjohnso@nyx10.cs.du.edu (Michael Johnson)
  • 1994-07-23 (Fri, 22 Jul 94 18:02:52 PDT) - Re: Gore’s “new and improved” key escrow proposal - solman@MIT.EDU
    • 1994-07-23 (Fri, 22 Jul 94 20:02:07 PDT) - Re: Gore’s “new and improved” key escrow proposal - Bill & <sommerfeld@orchard.medford.ma.us>
    • 1994-07-26 (Mon, 25 Jul 94 19:47:50 PDT) - Re: Gore’s “new and improved” key escrow proposal - Phil Karn <karn@qualcomm.com>
      • 1994-07-26 (Mon, 25 Jul 94 23:52:30 PDT) - Re: Gore’s “new and improved” key escrow proposal - tcmay@netcom.com (Timothy C. May)
        • 1994-07-26 (Tue, 26 Jul 94 10:44:02 PDT) - more forward secrecy - hughes@ah.com (Eric Hughes)
      • 1994-07-27 (Wed, 27 Jul 94 07:51:48 PDT) - Re: Gore’s “new and improved” key escrow proposal - Michael Paul Johnson <mpj@netcom.com>
  • 1994-07-23 (Fri, 22 Jul 94 21:12:30 PDT) - Re: Gore’s “new and improved” key escrow proposal - Derek Atkins <warlord@MIT.EDU>
    • 1994-07-26 (Mon, 25 Jul 94 20:07:04 PDT) - Re: Gore’s “new and improved” key escrow proposal - “Perry E. Metzger” <perry@imsi.com>
  • 1994-07-23 (Fri, 22 Jul 94 21:37:07 PDT) - Re: Gore’s “new and improved” key escrow proposal - Berzerk <berzerk@xmission.xmission.com>