On 03/12/2014 01:19 AM, T, Satyanarayana (GE Healthcare) wrote:
> Hi,
> 
> First thanks for the reply...
> 
> Just some clarification needed, The difference between two processors I see is
> 
>     TI (AM37xx)                            Freescale(imx6)
> 1)ARMv7-A cortex A8        Armv7-A cortex A9
> 2) Single core                        2 cores
> 3)Has neon capability        Has neon capability
> 
> So even if both has ARMv7+neon, but due to difference in both the 
> architectures:
>             no of cores:1,cortex A8 for TI and no of cores:4,cortex:A9  for 
> imx6, can I assume that the validation for TI AM37xx is not valid for imx6q?
> 

Strange as it seems the *number* of cores in a processor is irrelevant
to the FIPS 140-2 validation. Or perhaps not so strange when you
consider that each of the multiple cores in a multi-core processor will
execute the same object code in the same way (this is a case where
common sense *does* apply). Likewise processor clock speed doesn't
matter (FIPS 140-2 doesn't care about performance).

> Also is it possible for me to get any info on whether there is any
> openssl fips validation present which I can use for imx6+linux?

We would all like more clarity for many aspects of FIPS 140-2. I've
already shared my opinion about the equivalence of processor
architectures (all ARMv7 processor with NEON being equivalent for FIPS
validation purposes). You can always consult the formal scripture:

  http://csrc.nist.gov/groups/STM/cmvp/standards.html

or ask the CMVP, the only ones able to supply authoritative answers:

  http://csrc.nist.gov/groups/STM/cmvp/contacts.html

Or, you can sponsor formal testing of your specific platform which is
the only other way to establish with absolute certainty the status of
that platform. On several occasions we have done that for sponsors even
when not necessary (as directly confirmed by the CMVP) to satisfy
specific and unreasonable (as in "above and beyond CMVP requirements")
customer expectations.

-Steve M.

-- 
Steve Marquess
OpenSSL Software Foundation, Inc.
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