From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: linux-integrity@vger.kernel.org, Mimi Zohar <zohar@linux.ibm.com>,
David Woodhouse <dwmw2@infradead.org>,
keyrings@vger.kernel.org
Subject: Re: [PATCH v7 1/6] lib: add ASN.1 encoder
Date: Fri, 6 Mar 2020 21:10:29 +0200 [thread overview]
Message-ID: <20200306191029.GI7472@linux.intel.com> (raw)
In-Reply-To: <20200305022744.12492-2-James.Bottomley@HansenPartnership.com>
On Wed, Mar 04, 2020 at 06:27:39PM -0800, James Bottomley wrote:
> We have a need in the TPM2 trusted keys to return the ASN.1 form of
> the TPM key blob so it can be operated on by tools outside of the
> kernel. The specific tools are the openssl_tpm2_engine, openconnect
> and the Intel tpm2-tss-engine. To do that, we have to be able to read
> and write the same binary key format the tools use. The current ASN.1
> decoder does fine for reading, but we need pieces of an ASN.1 encoder
> to write the key blob in binary compatible form.
>
> For backwards compatibility, the trusted key reader code will still
> accept the two TPM2B quantities that it uses today, but the writer
> will only output the ASN.1 form.
>
> The current implementation only encodes the ASN.1 bits we actually need.
>
> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
For me this looks good (saw your other mail about spacing, no worries).
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
/Jarkko
next prev parent reply other threads:[~2020-03-06 19:10 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-05 2:27 [PATCH v7 0/6] TPM 2.0 trusted keys with attached policy James Bottomley
2020-03-05 2:27 ` [PATCH v7 1/6] lib: add ASN.1 encoder James Bottomley
2020-03-05 16:20 ` James Bottomley
2020-03-06 19:10 ` Jarkko Sakkinen [this message]
2020-03-05 2:27 ` [PATCH v7 2/6] oid_registry: Add TCG defined OIDS for TPM keys James Bottomley
2020-03-05 2:27 ` [PATCH v7 3/6] security: keys: trusted: fix TPM2 authorizations James Bottomley
2020-03-06 19:52 ` Jarkko Sakkinen
2020-03-05 2:27 ` [PATCH v7 4/6] security: keys: trusted: use ASN.1 TPM2 key format for the blobs James Bottomley
2020-03-06 20:03 ` Jarkko Sakkinen
2020-03-07 22:00 ` Jarkko Sakkinen
2020-03-09 13:59 ` James Bottomley
2020-03-09 22:08 ` James Bottomley
2020-03-05 2:27 ` [PATCH v7 5/6] security: keys: trusted: add ability to specify arbitrary policy James Bottomley
2020-03-05 2:27 ` [PATCH v7 6/6] security: keys: trusted: implement counter/timer policy James Bottomley
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