From: Pierre Abbat <phma@webjockey.net>
To: reiserfs-list@namesys.com
Subject: Re: Proposal for keying encrypted filesystem
Date: Sun, 30 Mar 2003 11:30:23 -0500 [thread overview]
Message-ID: <200303301130.24136.phma@webjockey.net> (raw)
In-Reply-To: <3E85E338.CEAA7DC7@namesys.com>
On Saturday 29 March 2003 13:17, Edward Shushkin wrote:
> Any collision can be used by attacker for access to remained decrypted data
> in memory, so you should assign the *whole* output of any crypto-stable
> hash function (20 bytes for SHA1). If you use 19 bytes for ID, there is no
> any guarantee that someone can not find a collision easy.
> Edward.
There isn't any guarantee with all 20 either, it's just 256 times as hard to
find one and practically impossible. What about using the MD5 of the
passphrase for the key ID, and the SHA1 of the passphrase for the key?
phma
--
.i toljundi do .ibabo mi'afra tu'a do
.ibabo damba do .ibabo do jinga
.icu'u la ma'atman.
next prev parent reply other threads:[~2003-03-30 16:30 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-29 1:26 Proposal for keying encrypted filesystem Pierre Abbat
2003-03-29 16:46 ` Edward Shushkin
2003-03-29 16:55 ` Pierre Abbat
2003-03-29 18:17 ` Edward Shushkin
2003-03-29 20:49 ` Pierre Abbat
2003-03-30 10:12 ` Hendrik Visage
2003-03-30 17:00 ` Pierre Abbat
2003-03-31 9:15 ` Hendrik Visage
2003-03-30 16:30 ` Pierre Abbat [this message]
2003-03-31 11:21 ` Edward Shushkin
2003-03-31 12:09 ` Edward Shushkin
2003-03-31 13:36 ` Hendrik Visage
2003-03-31 13:54 ` Pierre Abbat
2003-03-31 16:35 ` Hendrik Visage
2003-03-31 20:11 ` Pierre Abbat
2003-03-31 21:31 ` Hendrik Visage
2003-03-31 22:40 ` Pierre Abbat
2003-04-01 9:31 ` Hendrik Visage
2003-03-31 13:58 ` Edward Shushkin
2003-03-31 16:45 ` Hendrik Visage
2003-04-01 12:28 ` Edward Shushkin
2003-04-01 16:06 ` Hans Reiser
2003-04-01 16:16 ` Anders Widman
2003-04-01 16:21 ` Hans Reiser
2003-04-02 2:56 ` Pierre Abbat
2003-04-02 6:06 ` Hans Reiser
2003-04-02 13:05 ` Pierre Abbat
2003-04-02 15:11 ` Edward Shushkin
2003-04-03 16:14 ` Valdis.Kletnieks
2003-04-03 19:43 ` Hans Reiser
2003-04-03 20:08 ` Valdis.Kletnieks
2003-04-03 19:44 ` Hans Reiser
2003-04-03 23:22 ` Pierre Abbat
2003-04-04 0:25 ` Russell Coker
2003-04-04 14:01 ` Valdis.Kletnieks
2003-04-04 14:30 ` Pierre Abbat
2003-04-04 14:47 ` Valdis.Kletnieks
2003-04-04 14:57 ` Pierre Abbat
2003-04-04 16:36 ` Edward Shushkin
2003-04-04 16:45 ` Valdis.Kletnieks
2003-04-04 15:25 ` Edward Shushkin
2003-04-04 16:50 ` Hans Reiser
2003-04-04 17:19 ` Edward Shushkin
2003-04-04 18:45 ` Hans Reiser
2003-04-05 0:01 ` Pierre Abbat
2003-04-07 0:44 ` Valdis.Kletnieks
2003-04-07 1:14 ` Pierre Abbat
2003-04-07 4:52 ` Valdis.Kletnieks
2003-04-07 16:55 ` Hans Reiser
2003-04-07 18:38 ` Edward Shushkin
2003-04-07 19:46 ` Hans Reiser
2003-04-07 22:36 ` Pierre Abbat
2003-04-08 10:10 ` Edward Shushkin
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