From: Milan Broz <mbroz@redhat.com>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Question on LUKS master key digest and its effect on?security
Date: Tue, 22 Sep 2009 18:21:50 +0200 [thread overview]
Message-ID: <4AB8F99E.4080307@redhat.com> (raw)
In-Reply-To: <20090922161449.GA11479@fancy-poultry.org>
Heinz Diehl wrote:
> On 22.09.2009, Tero Pesonen wrote:
> As far as I understand the source, MK iterations is the iterations used to
> derive the master key via PBKDF2 (mkDigestIterations), and what you can specify by using
> "--iter-time" is the iterations used to transform a passphrase into a key
> for one of the keyslots (passwordIterations), used to unlock the master key.
--iter-time applies to PBKDF2 in keyslot calculation, NOT to MK digest verification,
here is iteration count fixed.
See PBKDF2 use in LUKS_verify_master_key() vs LUKS_set_key().
Milan
next prev parent reply other threads:[~2009-09-22 16:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-18 17:39 [dm-crypt] Question on LUKS master key digest and its effect on security Tero Pesonen
2009-09-18 18:16 ` Milan Broz
2009-09-18 20:18 ` Tero Pesonen
2009-09-22 15:08 ` Tero Pesonen
2009-09-22 15:47 ` Milan Broz
2009-09-22 17:47 ` Tero Pesonen
2009-09-22 16:14 ` [dm-crypt] Question on LUKS master key digest and its effect on?security Heinz Diehl
2009-09-22 16:21 ` Milan Broz [this message]
2009-09-19 16:51 ` [dm-crypt] Question on LUKS master key digest and its effect on security Heinz Diehl
2009-09-19 19:00 ` Milan Broz
2009-09-20 11:28 ` Heinz Diehl
2009-09-20 15:09 ` Heinz Diehl
2009-09-20 18:11 ` Milan Broz
2009-09-20 21:03 ` Heinz Diehl
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