1994-06-22 - Re: your mail

Header Data

From: “Perry E. Metzger” <perry@imsi.com>
To: Phil Karn <karn@qualcomm.com>
Message Hash: ecf485fbb6337d9aa33909fd174d266c8030641a8ab9f0192080332893942b95
Message ID: <9406221249.AA02619@snark.imsi.com>
Reply To: <199406220214.TAA00451@servo.qualcomm.com>
UTC Datetime: 1994-06-22 12:50:00 UTC
Raw Date: Wed, 22 Jun 94 05:50:00 PDT

Raw message

From: "Perry E. Metzger" <perry@imsi.com>
Date: Wed, 22 Jun 94 05:50:00 PDT
To: Phil Karn <karn@qualcomm.com>
Subject: Re: your mail
In-Reply-To: <199406220214.TAA00451@servo.qualcomm.com>
Message-ID: <9406221249.AA02619@snark.imsi.com>
MIME-Version: 1.0
Content-Type: text/plain



Phil Karn says:
> An even better idea: disconnect the antenna. Most of the noise comes
> from the front end amplifier, not the galactic and cosmic background,
> at least in your average consumer grade receiver. And this is a quantum
> process that someone else definitely can't predict or copy.

This is also cheap. If you have audio input on your computer, just put
an El-Cheapo radio with its antenna off tuned to dead air into your
workstation, and distill what comes out with MD5 or SHA or something
similar. Assume that things are much less random than they seem and
distill every N bytes down to 1 byte with the hashing algorithm -- N
depends on your paranoia.

Perry

Thread

• Return to June 1994

• Return to “Jef Poskanzer <jef@ee.lbl.gov>”
• Return to “Jim choate <ravage@bga.com>”
• Return to “khijol!erc (Ed Carp [Sysadmin])”
• Return to ““Perry E. Metzger” <perry@imsi.com>”

• Return to “Phil Karn <karn@qualcomm.com>”

• 1994-06-18 (Sat, 18 Jun 94 16:13:05 PDT) - No Subject - Jef Poskanzer <jef@ee.lbl.gov>
  • 1994-06-19 (Sun, 19 Jun 94 07:51:41 PDT) - Re: your mail - Jim choate <ravage@bga.com>
    • 1994-06-22 (Tue, 21 Jun 94 19:14:38 PDT) - Re: your mail - Phil Karn <karn@qualcomm.com>
      • 1994-06-22 (Wed, 22 Jun 94 05:40:59 PDT) - Re: your mail - khijol!erc (Ed Carp [Sysadmin])
        • 1994-06-22 (Wed, 22 Jun 94 11:13:23 PDT) - Re: your mail - Jim choate <ravage@bga.com>
          • 1994-06-23 (Thu, 23 Jun 94 15:15:39 PDT) - Re: your mail - Phil Karn <karn@qualcomm.com>
      • 1994-06-22 (Wed, 22 Jun 94 05:50:00 PDT) - Re: your mail - “Perry E. Metzger” <perry@imsi.com>