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Re: [PATCH v2 6/9] staging: ccree: add FIPS support

From Stephan Müller <smueller@chronox.de>
Newsgroups linux.kernel
Subject Re: [PATCH v2 6/9] staging: ccree: add FIPS support
Date 2017-04-24 08:30 +0200
Message-ID <tzFFw-3rT-15@gated-at.bofh.it> (permalink)
References <tyka5-XM-3@gated-at.bofh.it> <tzFma-3jI-25@gated-at.bofh.it> <tzFvP-3nE-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Am Montag, 24. April 2017, 08:16:50 CEST schrieb Stephan Müller:

Hi Gilad,

> > 
> > int __des3_ede_setkey(u32 *expkey, u32 *flags, const u8 *key,
> > 
> >                       unsigned int keylen)
> > 
> > However, this does not check that k1 == k3. In this case DES3
> > becomes 2DES (2-keys TDEA), the use of which was dropped post 2015
> > by NIST Special Publication 800-131A*.
> 
> It is correct that the RFC wants at least a 2key 3DES. And it is correct
> that SP800-131A mandates 3key 3DES post 2015. All I am saying is that FIPS
> 140-2 does *not* require a technical verification of the 3 keys being not
> identical.

One side note: we had discussed a patch to this function in the past, see [1].

[1] https://patchwork.kernel.org/patch/8293441/

Ciao
Stephan

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Thread

[PATCH v2 0/9] staging: ccree: add Arm TrustZone CryptoCell REE driver Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-20 15:20 +0200
  Re: [PATCH v2 1/9] staging: ccree: introduce CryptoCell HW driver Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-04-20 15:40 +0200
    Re: [PATCH v2 1/9] staging: ccree: introduce CryptoCell HW driver Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-20 15:50 +0200
      Re: [PATCH v2 1/9] staging: ccree: introduce CryptoCell HW driver Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-04-20 16:10 +0200
        Re: [PATCH v2 1/9] staging: ccree: introduce CryptoCell HW driver Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-23 11:40 +0200
  Re: [PATCH v2 0/9] staging: ccree: add Arm TrustZone CryptoCell REE  driver Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-04-20 15:40 +0200
    Re: [PATCH v2 0/9] staging: ccree: add Arm TrustZone CryptoCell REE driver Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-20 15:40 +0200
  Re: [PATCH v2 6/9] staging: ccree: add FIPS support Stephan Müller <smueller@chronox.de> - 2017-04-20 15:50 +0200
    Re: [PATCH v2 6/9] staging: ccree: add FIPS support Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-23 11:50 +0200
      Re: [PATCH v2 6/9] staging: ccree: add FIPS support Stephan Müller <smueller@chronox.de> - 2017-04-23 21:00 +0200
      Re: [PATCH v2 6/9] staging: ccree: add FIPS support Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-24 08:10 +0200
        Re: [PATCH v2 6/9] staging: ccree: add FIPS support Stephan Müller <smueller@chronox.de> - 2017-04-24 08:20 +0200
          Re: [PATCH v2 6/9] staging: ccree: add FIPS support Stephan Müller <smueller@chronox.de> - 2017-04-24 08:30 +0200
            Re: [PATCH v2 6/9] staging: ccree: add FIPS support Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-24 09:10 +0200
              Re: [PATCH v2 6/9] staging: ccree: add FIPS support Stephan Müller <smueller@chronox.de> - 2017-04-24 09:30 +0200
          Re: [PATCH v2 6/9] staging: ccree: add FIPS support Gilad Ben-Yossef <gilad@benyossef.com> - 2017-04-24 09:10 +0200
            Re: [PATCH v2 6/9] staging: ccree: add FIPS support Stephan Müller <smueller@chronox.de> - 2017-04-24 09:30 +0200

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