All of lore.kernel.org
 help / color / mirror / Atom feed
From: daw@mozart.cs.berkeley.edu (David Wagner)
To: linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] Make cryptoapi non-optional?
Date: Mon, 11 Aug 2003 19:21:01 +0000 (UTC)	[thread overview]
Message-ID: <bh8qat$d7i$1@abraham.cs.berkeley.edu> (raw)
In-Reply-To: 20030811053602.GL10446@mail.jlokier.co.uk

Jamie Lokier  wrote:
>It may be that an attacker knows about a systemic problem with our
>machine that we don't know about.  For example the attacker might know
>our pool state well enough shortly after boot time, to have a chance
>at matching a dictionary of 2^32 hashes.  The attacker might have had
>a chance to read our disk, which reseeding the pool at boot time does
>not protect against.
>
>With the right algorithm, we can protect against weaknesses of this kind.

How?  No matter what we do, the outputs are going to be a deterministic
function of the state of the pool.  If the attacker can guess the entire
state of our pool (or narrow it down to 2^32 possibilities), we're screwed,
no matter what.  Right?

I must be misunderstanding your point.  What am I missing?

  reply	other threads:[~2003-08-11 19:23 UTC|newest]

Thread overview: 120+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-09  7:44 [RFC][PATCH] Make cryptoapi non-optional? Matt Mackall
2003-08-09  8:04 ` David S. Miller
2003-08-09 14:05   ` Matt Mackall
2003-08-09 17:39     ` David S. Miller
2003-08-09 19:46       ` Matt Mackall
2003-08-09 20:17         ` David S. Miller
2003-08-10  8:15           ` Matt Mackall
2003-08-10  8:32             ` virt_to_offset() (Re: [RFC][PATCH] Make cryptoapi non-optional?) YOSHIFUJI Hideaki / 吉藤英明
2003-08-10  8:30               ` David S. Miller
2003-08-10  9:02                 ` virt_to_offset() YOSHIFUJI Hideaki / 吉藤英明
2003-08-11 18:21                   ` virt_to_offset() David Mosberger
2003-08-12  2:46                     ` virt_to_offset() David S. Miller
2003-08-10  9:05                 ` virt_to_offset() (Re: [RFC][PATCH] Make cryptoapi non-optional?) Matt Mackall
2003-08-10  9:04                   ` David S. Miller
2003-08-10 11:00                     ` [PATCH 1/9] introduce virt_to_pagoff() YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:00                     ` [PATCH 2/9] convert crypto to virt_to_pageoff() YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:05                     ` [PATCH 3/9] convert net " YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:07                     ` [PATCH 4/9] convert drivers/block " YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:09                     ` [PATCH 5/9] convert drivers/ide " YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:10                     ` [PATCH 6/9] convert drivers/net " YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:10                     ` [PATCH 7/9] convert drivers/scsi " YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:31                       ` Christoph Hellwig
2003-08-10 11:51                         ` David S. Miller
2003-08-10 12:03                           ` YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 14:54                             ` Christoph Hellwig
2003-08-10 14:51                           ` Christoph Hellwig
2003-08-10 13:54                         ` Russell King
2003-08-10 13:55                         ` Russell King
2003-08-10 14:55                           ` Christoph Hellwig
2003-08-11  5:21                           ` David S. Miller
2003-08-10 11:10                     ` [PATCH 8/9] convert drivers/usb " YOSHIFUJI Hideaki / 吉藤英明
2003-08-10 11:10                     ` [PATCH 9/9] convert fs/jbd " YOSHIFUJI Hideaki / 吉藤英明
2003-08-11  2:15             ` [RFC][PATCH] Make cryptoapi non-optional? Jamie Lokier
2003-08-11  2:38               ` Matt Mackall
2003-08-11  4:54               ` David S. Miller
2003-08-11  5:17                 ` Jamie Lokier
2003-08-13  5:01                 ` [Numbers][PATCH] " Matt Mackall
2003-08-10 14:46           ` [RFC][PATCH] " James Morris
2003-08-09 14:33 ` Matt Mackall
2003-08-09 17:13   ` Jamie Lokier
2003-08-09 17:33     ` Matt Mackall
2003-08-10 13:18       ` James Morris
2003-08-10 17:45         ` Matt Mackall
2003-08-11  2:09           ` Jamie Lokier
2003-08-11  2:35             ` Matt Mackall
2003-08-11  4:59               ` Jamie Lokier
2003-08-11  5:04                 ` Matt Mackall
2003-08-11  5:20                   ` Jamie Lokier
2003-08-11  5:54                     ` Matt Mackall
2003-08-11  6:24                       ` Jamie Lokier
2003-08-11  4:58             ` David Wagner
2003-08-11  5:36               ` Jamie Lokier
2003-08-11 19:21                 ` David Wagner [this message]
2003-08-13 19:37                   ` Jamie Lokier
2003-08-13  3:52             ` Theodore Ts'o
2003-08-13 15:44               ` i810_rng.o on various Dell models Jim Carter
2003-08-13 16:15                 ` Jeff Garzik
2003-08-13 18:43                   ` Jamie Lokier
2003-08-13 18:36               ` [RFC][PATCH] Make cryptoapi non-optional? Jamie Lokier
2003-08-15  0:16                 ` Network Card Entropy? was: " Mike Fedyk
2003-08-15  0:22                   ` Robert Love
2003-08-13  3:20           ` Theodore Ts'o
2003-08-13  4:06             ` Matt Mackall
2003-08-14 16:53               ` Val Henson
2003-08-14 19:40                 ` David Wagner
2003-08-14 20:07                   ` Chris Friesen
2003-08-14 21:36                   ` Jamie Lokier
2003-08-15  0:25                     ` Val Henson
2003-08-15 11:47                       ` Jamie Lokier
2003-08-15  0:17                   ` Val Henson
2003-08-15  1:45                     ` David Wagner
2003-08-15  2:21                       ` Matt Mackall
2003-08-15  7:30                     ` Andries Brouwer
2003-08-15  7:40                       ` David S. Miller
2003-08-15  7:55                         ` Andries Brouwer
2003-08-15  8:06                           ` Måns Rullgård
2003-08-15  8:11                             ` Nick Piggin
2003-08-15 15:11                             ` Matt Mackall
2003-08-15 22:16                               ` Jamie Lokier
2003-08-15 20:22                           ` Val Henson
2003-08-16  6:27                             ` David Wagner
2003-08-18  4:25                               ` Val Henson
2003-08-15  8:09                         ` Nick Piggin
2003-08-15 15:03                       ` Matt Mackall
2003-08-15 17:04                         ` Andries Brouwer
2003-08-15 22:05                           ` Jamie Lokier
2003-08-15 22:02                         ` Jamie Lokier
2003-08-15 12:48                     ` Jamie Lokier
2003-08-15 22:34                     ` Theodore Ts'o
2003-08-15 22:12               ` Theodore Ts'o
2003-08-15 23:35                 ` James Morris
2003-08-16 15:51                   ` Matt Mackall
2003-08-17 14:37                     ` James Morris
2003-08-17 15:30                       ` Matt Mackall
2003-08-15 23:55                 ` Matt Mackall
2003-08-16  0:05                   ` Andrew Morton
2003-08-16  0:58                     ` Jamie Lokier
2003-08-16  4:57                       ` Matt Mackall
2003-08-16  4:38                     ` Matt Mackall
2003-08-16  5:03                       ` Andrew Morton
2003-08-16  5:39                         ` Matt Mackall
2003-08-18  6:43                       ` Andreas Dilger
2003-08-18  6:55                         ` David Lang
2003-08-18 11:59                           ` Jamie Lokier
2003-08-18 12:11                             ` Måns Rullgård
2003-08-18 13:33                               ` Jamie Lokier
2003-08-18 17:03                             ` David Lang
2003-08-18 17:51                               ` Jamie Lokier
2003-08-22  4:28                           ` David Wagner
2003-08-25  4:29                             ` Jamie Lokier
2003-08-18 15:20                         ` Matt Mackall
2003-08-18  3:23                   ` Theodore Ts'o
2003-08-18 15:46                     ` Matt Mackall
2003-08-10  2:07   ` Robert Love
2003-08-10  3:14     ` Matt Mackall
2003-08-10  3:49       ` David S. Miller
2003-08-10  4:01         ` Robert Love
2003-08-10  4:07           ` Robert Love
  -- strict thread matches above, loose matches on Subject: below --
2003-08-16 20:40 Adam J. Richter
2003-08-17  4:28 ` Matt Mackall

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='bh8qat$d7i$1@abraham.cs.berkeley.edu' \
    --to=daw@mozart.cs.berkeley.edu \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.