Block Reordering Attacks on ZFS

[shenv56]

My understanding is that there are encryption schemes that guard against block reordering attacks. And was wondering how ZFS encryption guards against this. My understanding of block reordering attacks is that they "allow an attacker to swap the content of arbitrary files".

Eager to learn and get your thoughts.

[amotin]

If you are really interested in the topic, there is pretty good presentation from OpenZFS conference on YouTube, describing ZFS encryption. I think there is enough info to answer your question.

[shenv56]

Thanks, Is this the correct link to the talk: https://www.youtube.com/watch?v=frnLiXclAMo

[amotin]

Yes.