On Mon, Aug 05, 2019 at 09:25:01AM -0700, Eric Biggers wrote:
> Hello,
>
> [Note: I'd like to apply this for v5.4. Additional review is greatly
> appreciated, especially of the API before it's set in stone. Thanks!]
>
> This patchset makes major improvements to how keys are added, removed,
> and derived in fscrypt, aka ext4/f2fs/ubifs encryption. It does this by
> adding new ioctls that add and remove encryption keys directly to/from
> the filesystem, and by adding a new encryption policy version ("v2")
> where the user-provided keys are only used as input to HKDF-SHA512 and
> are identified by their cryptographic hash.
>
> All new APIs and all cryptosystem changes are documented in
> Documentation/filesystems/fscrypt.rst. Userspace can use the new key
> management ioctls with existing encrypted directories, but migrating to
> v2 encryption policies is needed for the full benefits.
>
I've applied this patchset to the fscrypt tree for 5.4.
- Eric
