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Date:   Mon, 20 May 2019 20:16:36 -0400
From:   "Theodore Ts'o" <>
To:     Eric Biggers <>
Cc:, Satya Tangirala <>,,,,,,,, Paul Crowley <>
Subject: Re: [PATCH v6 00/16] fscrypt: key management improvements

On Mon, May 20, 2019 at 10:25:36AM -0700, Eric Biggers wrote:
> 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.

Do you have userspace programs which use these new ioctl's?  What's
are testing strategy for these new ioctls?


						- Ted

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