Re: Request for help in research

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Hey Hi,

I'm using 1.0.2n version of openSSL currently. 

I'm using it on ubuntu 16.04, processor is i7 - 6700 Skylake.

Actually I  understand that the code https://wiki.openssl.org/index.php/Elliptic_Curve_Diffie_Hellman  has omitted the details of how to obtain the other party's key (the peer key) . 

So is there any code available online which can be used to benchmark the execution time of the ecdh implementation of OpenSSL ? Is someone aware of that ?


Then please let me know.


Thanks and regards
Tanushree Banerjee

From: openssl-users <openssl-users-bounces@xxxxxxxxxxx> on behalf of Dennis Clarke <dclarke@xxxxxxxxxxxxx>
Sent: Saturday, March 24, 2018 7:15:57 PM
To: openssl-users@xxxxxxxxxxx
Subject: Re: Request for help in research
 
On 24/03/18 06:10 PM, Tanushree Banerjee wrote:
> Hello,
>
> I was looking for benchmarking the execution time of Elliptic Curve
> based Diffie Hellman of the OpenSSL implementation in C just for my own
> purpose of understanding.

A few more specifics would be helpful here.

> |in command line. And it does give me some average timing. )|
>

Your results here would be portable across systems however one would
need to know the nature of the build and the architecture. I often
single step through functions and thus use non-optimized debug builds
which are vastly slower than a regular optimal build. Also the asm code
simply does not exist on some architectures like sparc ( non T4 ) or
some older powerpc types.


> ||I also tried this code ->
>
> The code over here gives me a bunch of error

That isn't too clear. How are you calling ecdh() and with what test data?

> Is there any other reliable source that has been used before ? If
> someone knows can you please forward me or let me know? That would be
> extremely helpful. Thank you for your patience.

Hey there UofW type, what rev of openssl are you using?  Should I assume
that you have "OpenSSL 1.1.0g  2 Nov 2017" on some reasonable
architecture?

Dennis Clarke
number cruncher math geek
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