From: Eric Biggers <ebiggers@kernel.org>
To: David Howells <dhowells@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>,
io-uring@vger.kernel.org, linux-crypto@vger.kernel.org
Subject: Re: io_uring and crypto
Date: Tue, 7 Oct 2025 17:13:31 +0000 [thread overview]
Message-ID: <20251007171331.GB2094443@google.com> (raw)
In-Reply-To: <4016104.1759857082@warthog.procyon.org.uk>
On Tue, Oct 07, 2025 at 06:11:22PM +0100, David Howells wrote:
> Hi Jens,
>
> I was wondering if it might be possible to adapt io_uring to make crypto
> requests as io_uring primitives rather than just having io_uring call sendmsg
> and recvmsg on an AF_ALG socket.
>
> The reason I think this might make sense is that for the certain crypto ops we
> need to pass two buffers, one input and one output (encrypt, decrypt, sign) or
> two input (verify) and this could directly translate to an async crypto
> request.
>
> Or possibly we should have a sendrecv socket call (RPC sort of thing) and have
> io_uring drive that.
>
> The tricky bit is that it would require two buffers and io_uring seems geared
> around one.
>
> David
What problem are you trying to solve that can't be solved with a
userspace crypto library?
- Eric
next prev parent reply other threads:[~2025-10-07 17:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-07 17:11 io_uring and crypto David Howells
2025-10-07 17:13 ` Eric Biggers [this message]
2025-10-07 17:27 ` Jens Axboe
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