From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Mimi Zohar <zohar@linux.ibm.com>, "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: "James Bottomley" <jejb@linux.ibm.com>,
"Jarkko Sakkinen" <jarkko@kernel.org>,
"David Howells" <dhowells@redhat.com>,
kernel@pengutronix.de, "Sumit Garg" <sumit.garg@linaro.org>,
"Pankaj Gupta" <pankaj.gupta@nxp.com>,
"David Gstir" <david@sigma-star.at>,
"Michael Walle" <michael@walle.cc>,
"John Ernberg" <john.ernberg@actia.se>,
"James Morris" <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
"Horia Geantă" <horia.geanta@nxp.com>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
"Jan Luebbe" <j.luebbe@pengutronix.de>,
"Eric Biggers" <ebiggers@kernel.org>,
"Richard Weinberger" <richard@nod.at>,
"Franck LENORMAND" <franck.lenormand@nxp.com>,
"Matthias Schiffer" <matthias.schiffer@ew.tq-group.com>,
keyrings@vger.kernel.org, linux-crypto@vger.kernel.org,
linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org,
"Pascal Van Leeuwen" <pvanleeuwen@verimatrix.com>
Subject: Re: [PATCH v10 2/7] KEYS: trusted: allow use of kernel RNG for key material
Date: Wed, 18 May 2022 06:31:33 +0200 [thread overview]
Message-ID: <4e0e8f5b-f5c9-003b-6aac-cea7c49b3f96@pengutronix.de> (raw)
In-Reply-To: <dd488736ab86c0e0b2809b4ce30f1827563b52b2.camel@linux.ibm.com>
Hello Mimi,
On 17.05.22 21:49, Mimi Zohar wrote:
> On Tue, 2022-05-17 at 20:30 +0200, Jason A. Donenfeld wrote:
>> Hi Mimi,
>>
>> On Tue, May 17, 2022 at 02:21:08PM -0400, Mimi Zohar wrote:
>>> On Tue, 2022-05-17 at 19:38 +0200, Jason A. Donenfeld wrote:
>> Apologies in advance if I've missed the mark here; I'm not very familiar
>> with this thread or what it's driving at. If the simple question was
>> just "is get_random_bytes_wait() good to use?" the answer is just "yes"
>> and I can disappear and stop confusing things. :)
>
> My apologies for your having been brought into this discussion without
> having properly reviewed and summarized the previous thread. As you
> saw there is a long history.
>
> Jarrko, Ahmad, "Trusted" keys, by definition, are based on the TPM
> RNG. If CAAM trusted key support wants to use kernel RNG by default,
> that's fine. However defining and allowing a boot command line option
> to use kernel RNG instead of the TPM RNG, needs to be configurable.
The use of kernel RNG for TPM Trusted Keys is already opt-in. The default
is trusted.rng=default, which maintains existing behavior. Users who want
to use kernel RNG instead need to explicitly specify trusted.rng=kernel.
What more is needed?
Cheers,
Ahmad
>
> thanks,
>
> Mimi
>
>
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next prev parent reply other threads:[~2022-05-18 4:32 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-13 14:56 [PATCH v10 0/7] KEYS: trusted: Introduce support for NXP CAAM-based trusted keys Ahmad Fatoum
2022-05-13 14:56 ` [PATCH v10 1/7] KEYS: trusted: allow use of TEE as backend without TCG_TPM support Ahmad Fatoum
2022-05-13 14:57 ` [PATCH v10 2/7] KEYS: trusted: allow use of kernel RNG for key material Ahmad Fatoum
2022-05-17 15:52 ` Mimi Zohar
2022-05-17 16:25 ` Ahmad Fatoum
2022-05-17 17:40 ` Jason A. Donenfeld
2022-05-17 17:38 ` Jason A. Donenfeld
2022-05-17 18:21 ` Mimi Zohar
2022-05-17 18:30 ` Jason A. Donenfeld
2022-05-17 19:49 ` Mimi Zohar
2022-05-18 4:31 ` Ahmad Fatoum [this message]
2022-05-17 17:27 ` Jason A. Donenfeld
2022-05-17 17:52 ` Ahmad Fatoum
2022-05-17 18:00 ` Jason A. Donenfeld
2022-05-17 18:27 ` Ahmad Fatoum
2022-05-17 18:10 ` Jarkko Sakkinen
2022-05-17 18:20 ` Ahmad Fatoum
2022-05-17 18:20 ` Jason A. Donenfeld
2022-05-13 14:57 ` [PATCH v10 3/7] crypto: caam - determine whether CAAM supports blob encap/decap Ahmad Fatoum
2022-05-17 10:03 ` [EXT] " Pankaj Gupta
2022-05-13 14:57 ` [PATCH v10 4/7] crypto: caam - add in-kernel interface for blob generator Ahmad Fatoum
2022-05-13 14:57 ` [PATCH v10 5/7] KEYS: trusted: Introduce support for NXP CAAM-based trusted keys Ahmad Fatoum
2022-05-13 14:57 ` [PATCH v10 6/7] doc: trusted-encrypted: describe new CAAM trust source Ahmad Fatoum
2022-05-13 14:57 ` [PATCH v10 7/7] MAINTAINERS: add KEYS-TRUSTED-CAAM Ahmad Fatoum
2022-05-16 18:36 ` [PATCH v10 0/7] KEYS: trusted: Introduce support for NXP CAAM-based trusted keys Jarkko Sakkinen
2022-05-17 12:44 ` Ahmad Fatoum
2022-05-18 1:08 ` Jarkko Sakkinen
2022-05-18 4:36 ` Ahmad Fatoum
2022-05-18 14:58 ` Jarkko Sakkinen
2022-05-19 23:41 ` Jarkko Sakkinen
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