[Opendnssec-user] DNSSEC GPU acceleration of RSA sign operation

[Vasily Dolmatov]

15.11.2012, в 21:51, Ondřej Surý <ondrej at sury.org> написал(а):

> Have you seen this?
> 
> http://svsf40.icann.org/meetings/siliconvalley2011/presentation-gpu-accelerated-rsa-13mar11-en.pdf
> 
> The repository with the code can be found here:
> 
> https://git.nic.cz/redmine/projects/cursa/repository
> 
> According to our measurements the nVidia cards don't have enough
> throughput to be better than simple openssl on multicore machines. But
> your experience may vary.
That's true. 
Most evident benefit from nVidia GPU can be obtained on stream ciphers, CTR-modes

Signatures  (either RSA, or elliptic curves) and hashes are badly suitable for GPU architecture
> 
> Ondrej
> 
> On Thu, Nov 15, 2012 at 6:22 PM, Miele Andrea <andrea.miele at epfl.ch> wrote:
>> Hello,
>> I implemented RSA 2048 batch decryption on NVIDIA GPUs in C/CUDA.
>> I would like to have some insight on the possible use of my code to speed up DNSSEC sign operations with RSA.
>> I do not have precise figures at hand right now, but the latency of my software depending on the GPU and the configuration of the CUDA execution is of hundreds of milliseconds (let's say 400 ms) and then number
>> of messages signed is up to 10 thousand.
>> Do you think that a high throughput batch decryption routine could be of any use in DNSSEC?
>> 
>> Best,
>> 
>> Andrea
>> 
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> 
> 
> 
> -- 
> Ondřej Surý <ondrej at sury.org>
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