Re: Removing the encryption: (essentially decrypt) encrypted RGW objects

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hi Jayanth,

i don't know that we have a supported way to do this. the
s3-compatible method would be to copy the object onto itself without
requesting server-side encryption. however, this wouldn't prevent
default encryption if rgw_crypt_default_encryption_key was still
enabled. furthermore, rgw has not implemented support for copying
encrypted objects, so this would fail for other forms of server-side
encryption too. this has been tracked in
https://tracker.ceph.com/issues/23264

On Sat, Jun 17, 2023 at 12:13 PM Jayanth Reddy
<jayanthreddy5666@xxxxxxxxx> wrote:
>
> Hello Users,
> We've a big cluster (Quincy) with almost 1.7 billion RGW objects, and we've
> enabled SSE on as per
> https://docs.ceph.com/en/quincy/radosgw/encryption/#automatic-encryption-for-testing-only
> (yes, we've chosen this insecure method to store the key)
> We're now in the process of implementing RGW multisite, but stuck due to
> https://tracker.ceph.com/issues/46062 and list at
> https://lists.ceph.io/hyperkitty/list/ceph-users@xxxxxxx/thread/PQW66JJ5DCRTH5XFGTRESF3XXTOSIWFF/#43RHLUVFYNSDLZPXXPZSSXEDX34KWGJX
>
> Was wondering if there is a way to decrypt the objects in-place with the
> applied symmetric key. I tried to remove
> the rgw_crypt_default_encryption_key from the mon configuration database
> (on a test cluster), but as expected, RGW daemons throw 500 server errors
> as it can not work on encrypted objects.
>
> There is a PR being worked on about introducing the command option at
> https://github.com/ceph/ceph/pull/51842 but it appears it takes some time
> to be merged.
>
> Cheers,
> Jayanth Reddy
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