linux-ext4 - Re: [PATCH v6 00/16] fscrypt: key management improvements

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Message-ID: <20190521001636.GA2369@mit.edu>
Date:   Mon, 20 May 2019 20:16:36 -0400
From:   "Theodore Ts'o" <tytso@....edu>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     linux-fscrypt@...r.kernel.org, Satya Tangirala <satyat@...gle.com>,
        linux-api@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        keyrings@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-crypto@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-ext4@...r.kernel.org, Paul Crowley <paulcrowley@...gle.com>
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?

Thanks,

						- Ted