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From: John Case <case@sdf.lonestar.org>
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Subject: RE: FreeBSD equivalent to Sun crypto framework APIs (PKCS#11) (for
 hardware AES-CTR)
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> There are a number of hardware solutions for performing AES-CTR in
> hardware - for example the broadcom BCM5825, which is supported by
> the ubsec driver.
>
> The problem is that OpenSSL does not currently support hardware
> acceleration of AES-CTR.  The solution on a Sun system is to use the
> Sun crypto framework APIs (PKCS#11) which does support AES-CTR in
> hardware.
>
> Is there an analagous API in FreeBSD that I could implement in my
> code so as to use the hardware AES-CTR of devices supported by ubsec ?

> Aside from  crypto(3) (OpenSSL), there's also crypto(9) (kernel) and
> crypto(4) (userland), but they don't appear to support CTR - just CBC.


Understood.

How difficult or trivial would it be to add AES-CTR to either crypto(9) or 
crypto(4) ?

Are those just derived from OpenSSL in some way anyway ?  If not, who is 
responsible for this kind of work ?