[owncloud-devel] Encryption and file size

Vincent Petry pvince81 at owncloud.com
Wed Sep 3 07:47:45 GMT 2014


Encryption does increase the file size. From what I remember a 6126
bytes unencrypted block becomes a 8192 encrypted block, so that would
give about 8192/6126=1,3372511 which is about 34% increase, which is a
bit more than I expected...

Also the files seem to be stored in base64 for some reason instead of
I raised this issue https://github.com/owncloud/core/issues/10831 to
look into using a binary format instead of the base64 to reduce the size



On 09/02/2014 05:32 PM, Ryan Nix wrote:
> Hello,
> We have encryption enabled for all users and it looks like encryption is
> increasing the file size by a lot.  Typically, we're going from HFS on Macs
> to XFS on the server where OC keeps the data.  Is there is a general rule
> on this?  For instance, does encryption add 10-15% on the data store?
> Thanks,
> Ryan
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