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#1 (**permalink**) 02-16-2008, 06:21 AM

hi
i'm really new to linx and open bsd but i'd like to encrypt my whole
notebook (drive, files, or even os?); is this possible with open bsd or
linux? which one is more secure? can you choose from various encryption
algorithms?

thank you
mike

#2 (**permalink**) 02-16-2008, 06:21 AM

As far as i know only blowfish is supported in OpenBSDs crypto fs which
is integrated in the base system. But blowfish is good. See the
vnconfig man page in OpenBSD and take a closer look at the -k switch.

On 2005-01-16, mike <mirko_neu@hotmail.com> wrote:
> hi
> i'm really new to linx and open bsd but i'd like to encrypt my whole
> notebook (drive, files, or even os?); is this possible with open bsd or
> linux? which one is more secure? can you choose from various encryption
> algorithms?
>
> thank you
> mike
>
>

#3 (**permalink**) 02-16-2008, 06:21 AM

from my newsgroup notes:

> creating encrypted filesystem

> Does OpenBSD 3.5 support encrypted filesystems?

one way: consider using vnconfig
another way: see cfs (ports security/cfs)

> And if so, how can I create one?

for vnconfig:
# dd if=/dev/zero of=mycryptedfile.fs bs=1024 count=1024
to create a 1M file (sure you'll prefer a bigger size...)
# vnconfig -cvk svnd0 mycryptedfile.fs
enter you (secret) key (be sure to be the only one on the host...)
# newfs /dev/svnd0c
# mount /dev/svnd0c /mount/point
# cd /mount/point
here you are :-)

for cfs: consult man pages bundled with the package.

see also:

- http://www.backwatcher.org/writing/h...ilesystem.html

hopefully this points you where you are looking...

On 2005-01-16 13:33:12 -0800, "Paul C. Buetow" <news@buetow.org> said:

> As far as i know only blowfish is supported in OpenBSDs crypto fs which
> is integrated in the base system. But blowfish is good. See the
> vnconfig man page in OpenBSD and take a closer look at the -k switch.
>
> On 2005-01-16, mike <mirko_neu@hotmail.com> wrote:
>> hi
>> i'm really new to linx and open bsd but i'd like to encrypt my whole
>> notebook (drive, files, or even os?); is this possible with open bsd or
>> linux? which one is more secure? can you choose from various encryption
>> algorithms?
>>
>> thank you
>> mike

#4 (**permalink**) 02-16-2008, 06:23 AM

On 2005-01-17, brian pink <> wrote:
> http://www.backwatcher.org/writing/h...ilesystem.html

According to this old post from 2002, it breaks after 8.2 GB:
http://64.233.187.104/search?q=cache...hl=en&ie=UTF-8

Though it's not clear whether that's actually 8.2 GB or GiB.
He says it's a limitation of newfs when dealing with disk image files.

Just wondering how big can one make their disk images?

#5 (**permalink**) 02-16-2008, 06:23 AM

On 2005-01-29, gargoyle <gargoyle@no.spam> wrote:
> Just wondering how big can one make their disk images?

Well it looks like there's no more limit now. :-)
http://marc.theaimsgroup.com/?t=110068953100003&r=1&w=2

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