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SubjectRe: [TuxOnIce-devel] [RFC] TuxOnIce
On Thursday 07 May 2009, U Kuehn wrote:
> Pavel Machek wrote:
> >> To briefly summarise the advantages to merging TuxOnIce:
> >>
> >> - Support for multiple swap devices
> >> - Support for non-swap (an ordinary file can be used)
> >> - Uses cryptoapi (LZO support, more than 2x speed of uncompressed data!)
> >> - Asynchronous I/O, readahead, multithreaded. Get the maximum throughput
> >> possible with your hardware.
> >> - Userspace user interface that lets you abort hibernating and abort
> >> resuming, get nice progress display etc.
> >
> > All these are either done by uswsusp already, or could be done w/o
> > modifying kernel code.
> >
> Given that tuxonice DOES work reliably with dm-crypt encrypted swap
> partitions, does uswsusp offer this functionality? Looking into the docs
> on the sourceforge site does not give any information about this point.
> Further, being someone with a crypto background, the userland suspend
> helper does have some issues with the password/key handling:
> 1) no support for keys containing a 0 byte. (cryptsetup can handle this)
> 2) the rsa functionality seems to use the unsound practice to encrypt
> the symmetric key directly without any padding (aka encoding in libgcrypt).
> This is, unfortunately, something really fundamenta...

I'm not sure you're totally correct, but anyway patches are welcome to improve

Also, as you can see from my previous message, I'm not a big fan of fighting
over this once again. Lets try to work together to do something productive
instead, shall we?


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