On Wed, Jun 19, 2013 at 09:45:34PM -0500, Adam Vande More wrote:
> On Wed, Jun 19, 2013 at 9:20 PM, Peter Eisentraut <pete...@gmx.net> wrote:
>
> On Thu, 2013-04-18 at 15:16 -0500, Adam Vande More wrote:
> > On this page http://www.postgresql.org/docs/9.2/static/
> encryption-options.html,
> > "gbde" is listed as the method for encrypting block devices. While
> > correct, "geli" is a much more appropriate mention as it's a more
> > powerful(e.g. aes-ni support) and secure(more ciphers, data
> > authentication,etc) solution.
>
> Could you provide an updated wording? (E.g., should we just replace
> gbde by geli, or list both?)
>
>
>
> Sure, here is a change that encompasses more than my original observation.
> Take or leave or modify what you wish.
>
>
> pseudo diff
>
> -"On Linux, encryption can be layered on top of a file system using a
> "loopback
> device". This allows an entire file system partition to be encrypted on disk,
> and decrypted by the operating system. On FreeBSD, the equivalent facility is
> called GEOM Based Disk Encryption (gbde), and many other operating systems
> support this functionality, including Windows."
>
> +"There are at least two methods of encrypting a file system. The first is to
> use a tool which implements an encrypted file system. On Linux, eCryptfs or
> EncFS are commonly used for this while FreeBSD uses PEFS. The other and
> perhaps more common method is to encrypt the block device a file system or
> swap
> partition resides on. These types of solutions can also provide full disk
> encryption. Linux generally uses dm-crypt + LUKS for this functionality with
> other options dependent on kernel version/distro. On FreeBSD, there are two
> GEOM modules to encrypt block devices: geli & gbde with geli being the
> preferred solution for speed, security, and options. Many other operating
> system have their own method of block device or full disk encryption."
I have developed the attached doc patch to improve our details around
storage encryption.
--
Bruce Momjian <br...@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
new file mode 100644
index ab51782..99c891a
*** a/doc/src/sgml/runtime.sgml
--- b/doc/src/sgml/runtime.sgml
*************** pg_dumpall -p 5432 | psql -d postgres -p
*** 1815,1826 ****
<listitem>
<para>
! On Linux, encryption can be layered on top of a file system
! using a <quote>loopback device</quote>. This allows an entire
! file system partition to be encrypted on disk, and decrypted by the
! operating system. On FreeBSD, the equivalent facility is called
! GEOM Based Disk Encryption (<acronym>gbde</acronym>), and many
! other operating systems support this functionality, including Windows.
</para>
<para>
--- 1815,1826 ----
<listitem>
<para>
! Storage encryption can be performed at the file system level or the
! block level. Linux file system encryption options include eCryptfs
! and EncFS, while FreeBSD uses PEFS. Block level or full disk
! encryption options include dm-crypt + LUKS on Linux and GEOM
! modules geli and gbde on FreeBSD. Many other operating systems
! support this functionality, including Windows.
</para>
<para>
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