Re: VIA on-chip RNG and crypto...

[Nuno Silva]

Hi Jeff!

Jeff Garzik wrote:
> VIA has publicly posted the docs for the 'xstore' and 'xcrypt' 
> instructions in their processors:
>
>     http://www.via.com.tw/en/viac3/c3.jsp
>
> (grab "VIA Padlock {ACE|RNG} Programming Guide" down at the bottom)


You forgot the "journalist touch". To spike interest:

"PadLock ACE encrypts at rates of up to 12.5 Gigabits per second (Gbps) 
with a 1GHz VIA C3 processor, more than eight times faster than the best 
software AES implementation from a power hungry 3GHz Intel® Pentium® 4 
processor based system that encrypts at a rate of a mere 1.5 Gbps."

25 times faster, clock by clock :)

Regards,
Nuno Silva

[...]

> P.S. In the interest of full disclosure, neither VIA nor my employer 
> prompted me to write this.

The same here.


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