Komprimovany a sifrovany image

[luc]

Dne po 24. dubna 2006 16:55 Martin Špirk napsal(a):
> Zdravim,
>
> hledam nejaky zpusob, jak za ucelem zalohovani vyrobit nejaky
> komprimovany a sifrovany image meho disku.
> Nasel jsem losetup+crypto, squashfs i cramfs, kazde zvlast uz umim
> pouzit, ale nejak jsem nezjistil jestli jde spojit obe tyhle
> vlastnosti dohromady. Nebo je na to jeste nejaky jiny fs?
>
> 	Diky, Martin
Dobre a co tohle ...


Seriously:
Transparent compression and(or) encryption (optionally) in reiser4 are
implemented via cryptcompress object plugin. Whats hot:

- Support of variable cluster size ((1, 2, 4, 8,..) * PAGE_SIZE)
via copy on clustering. The last means that page cluster will be
assembled into united flow before compression, and output stream of
decompression algorithm will be split into pages. Cluster size is an
attribute of cryptcompress files which means a size of maximal chunk
of data that can be passed to compression algorithm. This is required
attribute for each cryptcompress object, each cluster is compressed
and (or) encrypted independently. This allows to apply per cluster
various stream modes for encryption, which are also represented by
reiser4 stream plugins.


vice ...http://www.ussg.iu.edu/hypermail/linux/kernel/0401.3/0799.html


luc
Linux 2.6.12-17mdk-i686-up-4GB Intel(R) Pentium(R) M processor 2.00GHz