From: Herbert Xu <herbert@gondor.apana.org.au>
To: Pavitrakumar Managutte <pavitrakumarm@vayavyalabs.com>
Cc: linux-crypto@vger.kernel.org, Ruud.Derwig@synopsys.com,
manjunath.hadli@vayavyalabs.com, bhoomikak@vayavyalabs.com
Subject: Re: [PATCH v3 3/7] Add SPAcc ahash support
Date: Thu, 16 May 2024 11:15:50 +0800 [thread overview]
Message-ID: <ZkV6ZmONMHEX7BQy@gondor.apana.org.au> (raw)
In-Reply-To: <CALxtO0myn63AwPh4vck7fpuJcttPJYLBM3TpsyBAexCMSa4GcQ@mail.gmail.com>
On Thu, May 16, 2024 at 08:41:57AM +0530, Pavitrakumar Managutte wrote:
> Hi Herbert,
> The SPAcc crypto accelerator has the below design
>
> 1. The SPAcc does not allow us to read internal context (including
> the intermediate hash).
> The hardware context is inaccessible for security reasons.
In that case you cannot support the partial hashing APIs in Linux.
You should use a software fallback for everything but the digest
call.
Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2024-05-16 3:15 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 4:25 [PATCH v3 0/7] Add SPAcc crypto driver support Pavitrakumar M
2024-04-26 4:25 ` [PATCH v3 1/7] Add SPAcc Skcipher support Pavitrakumar M
2024-04-26 4:25 ` [PATCH v3 2/7] Enable SPAcc AUTODETECT Pavitrakumar M
2024-04-26 4:25 ` [PATCH v3 3/7] Add SPAcc ahash support Pavitrakumar M
2024-05-03 10:29 ` Herbert Xu
2024-05-07 4:19 ` Pavitrakumar Managutte
2024-05-10 8:03 ` Herbert Xu
2024-05-16 3:11 ` Pavitrakumar Managutte
2024-05-16 3:15 ` Herbert Xu [this message]
2024-05-16 3:50 ` Pavitrakumar Managutte
[not found] ` <CALxtO0mz6ehEowBr94MZqG3+P9tV1ZaomP5K3n1F2VSuRzn=1A@mail.gmail.com>
2024-05-21 2:13 ` Herbert Xu
2024-04-26 4:25 ` [PATCH v3 4/7] Add SPAcc aead support Pavitrakumar M
2024-04-26 4:25 ` [PATCH v3 5/7] Add SPAcc Kconfig and Makefile Pavitrakumar M
2024-04-26 4:25 ` [PATCH v3 6/7] Add SPAcc node zynqmp dts Pavitrakumar M
2024-04-26 4:25 ` [PATCH v3 7/7] Enable Driver compilation in crypto Kconfig and Makefile Pavitrakumar M
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