1995-01-12 - Re: Multiple symetric cyphers

Header Data

From: eric@remailer.net (Eric Hughes)
To: cypherpunks@toad.com
Message Hash: 2222fa312323ac50553910c3e54230b7b10d0b1e9604965b02066d5a6933a988
Message ID: <199501120502.VAA29808@largo.remailer.net>
Reply To: <199501112303.SAA14726@bb.hks.net>
UTC Datetime: 1995-01-12 05:04:05 UTC
Raw Date: Wed, 11 Jan 95 21:04:05 PST

Raw message

From: eric@remailer.net (Eric Hughes)
Date: Wed, 11 Jan 95 21:04:05 PST
To: cypherpunks@toad.com
Subject: Re: Multiple symetric cyphers
In-Reply-To: <199501112303.SAA14726@bb.hks.net>
Message-ID: <199501120502.VAA29808@largo.remailer.net>
MIME-Version: 1.0
Content-Type: text/plain


   From: cactus@seabsd.hks.net (L. Todd Masco)


   I'm wondering: would the strength be increased by using a randomly selected
   symetric cypher? 

Strength is not right aspect.  Global risk is reduced, simply because
the aggregate cost of a breach is reduced.

But selecting a single cipher is just as much a fixed policy as a
randomly selected one is.  Far better to let the user pick a policy,
both about sent and accepted ciphers.

   I guess this reduces to: do strong cyphers have "signatures" of some sort,
   by which the type of encryption can be derived? 

If they do, they're likely not _strong_ ciphers.

Eric

Thread

• Return to January 1995

• Return to “cactus@seabsd.hks.net (L. Todd Masco)”
• Return to “Derek Atkins <warlord@MIT.EDU>”
• Return to “eric@remailer.net (Eric Hughes)”
• Return to “Mike Johnson second login <exabyte!gedora!mikej2@uunet.uu.net>”

• Return to “paul@poboy.b17c.ingr.com (Paul Robichaux)”

• 1995-01-11 (Wed, 11 Jan 95 14:58:08 PST) - Multiple symetric cyphers - cactus@seabsd.hks.net (L. Todd Masco)
  • 1995-01-12 (Wed, 11 Jan 95 21:04:05 PST) - Re: Multiple symetric cyphers - eric@remailer.net (Eric Hughes)
    • 1995-01-12 (Thu, 12 Jan 95 07:49:28 PST) - Re: Multiple symetric cyphers - paul@poboy.b17c.ingr.com (Paul Robichaux)
      • 1995-01-12 (Thu, 12 Jan 95 08:33:46 PST) - Re: Multiple symetric cyphers - eric@remailer.net (Eric Hughes)
        • 1995-01-12 (Thu, 12 Jan 95 09:13:28 PST) - Re: Multiple symetric cyphers - Derek Atkins <warlord@MIT.EDU>
      • 1995-01-19 (Thu, 19 Jan 95 01:12:38 PST) - Re: Multiple symetric cyphers - Mike Johnson second login <exabyte!gedora!mikej2@uunet.uu.net>