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Message-ID: <0d51fca9a29458a40121df0c5380af91e3429c08.camel@infradead.org>
Subject: Re: [PATCH 00/22] KEYS: Support TPM-wrapped key and crypto ops
From:   David Woodhouse <dwmw2@infradead.org>
To:     Denis Kenzior <denkenz@gmail.com>,
        David Howells <dhowells@redhat.com>
Cc:     jmorris@namei.org, keyrings@vger.kernel.org,
        linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org
Date:   Tue, 18 Sep 2018 17:17:10 +0100
In-Reply-To: <745318a0-51bd-be8f-2251-44701ad75830@gmail.com>
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On Tue, 2018-09-18 at 00:24 -0500, Denis Kenzior wrote:
> Hi David,
>=20
> On 09/18/2018 10:50 AM, David Howells wrote:
> > Denis Kenzior <denkenz@gmail.com> wrote:
> >=20
> > >     openssl asn1parse -inform pem -in /tmp/privkey.2048.tpm -noout \
> > >                       -out /tmp/privkey.2048.der
> >=20
> > You can use "... -out - | ..." instead.
>=20
> Aha! okay, that is even more elegant.  Your openssl-fu is better than=20
> mine :)

'grep -v ^----- | base64 -d' also works most of the time :)

You are passing the raw DER to the kernel in both cases, right? And the
kernel just happens to know that if it receives a bare OCTET-STRING
it's supposed to treat it as a TPMv1.2 key?=20
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