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Re: [PATCH] keys, trusted: select TPM2 hash algorithm

From Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] keys, trusted: select TPM2 hash algorithm
Date 2015-10-26 06:50 +0100
Message-ID <qnIPn-4kh-3@gated-at.bofh.it> (permalink)
References <qn6qJ-yv-1@gated-at.bofh.it> <qnz9o-6Wn-11@gated-at.bofh.it>
Organization Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo

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On Sun, Oct 25, 2015 at 03:21:31PM -0400, Mimi Zohar wrote:
> On Sat, 2015-10-24 at 15:42 +0300, Jarkko Sakkinen wrote:
> > Added 'hashalg=' option for selecting the hash algorithm.
> > 
> > Currently available options are:
> > 
> > * sha1
> > * sha256
> > * sha384
> > * sha512
> > * sm3_256
> 
> Please consider using crypto/hash_info.c: hash_algo_name[], which
> already define the algorithm string names.  Use
> include/crypto/hash_info.c to include a reference to this array.

It wold work for me. I did ad-hoc because first example that I looked
at was EcryptFS.

I need to add sm3_256 to that array.

I've found three different ways to write it:

* sm3256 (various google hits)
* sm3-256 (various google hits)
* sm3_256 (TPM 2.0 Structures specification)

Maybe the second option would be the most appropriate?

> Boot command line options should be prefixed with the subsystem name.
> So instead of hashalg, please use tpm_hashalg.  The boot command line
> option needs to be documented in Documentation/kernel-parameters.txt.

I see. My commit message is clearly inadequate. It's an option for the
keyring syscalls.

> Mimi

/Jarkko
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Thread

[PATCH] keys, trusted: select TPM2 hash algorithm Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2015-10-24 14:50 +0200
  Re: [PATCH] keys, trusted: select TPM2 hash algorithm Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2015-10-25 18:40 +0100
  Re: [PATCH] keys, trusted: select TPM2 hash algorithm Mimi Zohar <zohar@linux.vnet.ibm.com> - 2015-10-25 20:30 +0100
    Re: [PATCH] keys, trusted: select TPM2 hash algorithm Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2015-10-26 06:50 +0100
      Re: [PATCH] keys, trusted: select TPM2 hash algorithm Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2015-10-27 11:50 +0100
        Re: [PATCH] keys, trusted: select TPM2 hash algorithm Mimi Zohar <zohar@linux.vnet.ibm.com> - 2015-10-27 15:00 +0100

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