Re: Cryptographically verifying a btrfs subvolume

[Johannes Thumshirn <jthumshirn@suse.de>]

On Mon, Apr 08, 2019 at 11:27:51AM +0000, Leonid Bloch wrote:
> Hi List,
> 
> Can you suggest a way of cryptographically verifying the content of a 
> btrfs subvolume, besides the naïve approach, of running a cryptographic 
> hash function on the output of btrfs send?
> 
> Back in 2014, an RFC patch was sent to allow using sha256 instead of 
> crc32c for checksumming.
> (https://patchwork.kernel.org/patch/5363311)
> It was not merged. Had it been merged, one could just check the return 
> value of btrfs scrub, instead of checksumming the whole btrfs send 
> output, correct?

Hi Leonid,

I'm working on this feature currently but unfortunately get distracted with
other things all too often.

Thanks for your patience.

Byte,
	Johannes
-- 
Johannes Thumshirn                            SUSE Labs Filesystems
jthumshirn@suse.de                                +49 911 74053 689
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