From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Query on validating cryptsetup
Date: Sun, 7 Oct 2012 22:53:44 +0200 [thread overview]
Message-ID: <20121007205344.GA6260@tansi.org> (raw)
In-Reply-To: <5071DD16.8030301@gmail.com>
On Sun, Oct 07, 2012 at 09:50:46PM +0200, Milan Broz wrote:
> On 10/03/2012 07:28 PM, Abhishek Tiwari wrote:
> > I am trying to use cryptsetup for an SD card. I create the crypto
> > mapper device and write a file to it. For the purpose of validation,
> > I am using a fixed key "11111111" as passphrase. Then I tried to see
> > the contents of this SD card using a reader and WinHex. Unfortunately
> > these contents do not match with an encrypted copy of same file that
> > was encrypted using this online DES encryption tool:
> > http://www.tools4noobs.com/online_tools/encrypt/ I specified
> > algorithm as DES and mode as CBC.
>
> Well, if it is real use, never use DES, it is no longer secure enough.
Indeed. Known plaintext attack for DES is doable some hours now.
I still remember when 56 bit DES was considered secure ;-)
Arno
--
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name
GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F
----
One of the painful things about our time is that those who feel certainty
are stupid, and those with any imagination and understanding are filled
with doubt and indecision. -- Bertrand Russell
prev parent reply other threads:[~2012-10-07 20:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-03 17:28 [dm-crypt] Query on validating cryptsetup Abhishek Tiwari
2012-10-07 19:50 ` Milan Broz
2012-10-07 20:53 ` Arno Wagner [this message]
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