Re: Hardware Crypto Offload on Kirkwood (SheevaPlug)

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Jason Burrell wrote:

>      > NSS supports PKCS#11 which most hardware crypto accelerators
>     (including
>      > things like smartcards and offloading coprocessors) use. As far as I
>      > know, the only OpenSSL PKCS#11 library is external to it, from the
>      > OpenSC people.
> 
>     Hmm... Are the relevant kernel drivers and interfaces in place for
>     PKCS#11 for any of the crypto offload engines discussed (Kirkwood,
>     Tegra, Freescale)? Can somebody point me at the relevant interface docs?
> 
> 
> Generally, the CPU-based "crypto" hardware is actually just a few 
> acceleration functions, so you don't usually access it through PKCS#11. 
> I know NSS supports the Intel AES instructions directly (not via 
> PKCS#11), so it should be possible to add others as well.

Accelerating instructions are something for the compilers and assemblers 
to deal with. I was specifically talking about asynchronous offload 
engines that ARM SoCs often to have.

>     So are you saying that the number of organizations that _don't_ use
>     OpenSSH, OpenLDAP, mod_ssl, etc. is greater than those that do (limiting
>     the field here to those that use some unix-like OS)? That would surprise
>     me if it really is the case.
> 
> 
> I don't have figures as to the number of deployments of any of those 
> tools, but only OpenSSH is listed as not yet supporting NSS anyway.
> 
> I do think there are many deployments of OpenSSL that aren't following 
> its license's advertising requirements. As you stated, OpenSSH is used 
> pretty much everywhere, but I don't even remember the last time I saw a 
> statement saying a product included software from OpenSSL, except in 
> hidden about boxes, which isn't what a clear reading for the Four-clause 
> BSD license states.

Just out of interest, have OpenSSL maintainers complained at having just 
about every distribution on the planet break their licencing terms?

Gordan
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