linux-ext4 - Re: [PATCH v8 00/20] fscrypt: key management improvements

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Date:   Wed, 14 Aug 2019 15:37:25 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     linux-fscrypt@...r.kernel.org
Cc:     Satya Tangirala <satyat@...gle.com>, Theodore Ts'o <tytso@....edu>,
        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,
        Jaegeuk Kim <jaegeuk@...nel.org>, linux-ext4@...r.kernel.org,
        Paul Crowley <paulcrowley@...gle.com>
Subject: Re: [PATCH v8 00/20] fscrypt: key management improvements

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