Re: Re: [PATCH v3 0/6] Support akcipher for virtio-crypto

[zhenwei pi]

On 3/23/22 13:17, Eric Biggers wrote:
> On Wed, Mar 23, 2022 at 10:49:06AM +0800, zhenwei pi wrote:
> > v2 -> v3:
> > - Introduce akcipher types to qapi
> > - Add test/benchmark suite for akcipher class
> > - Seperate 'virtio_crypto: Support virtio crypto asym operation' into:
> >    - crypto: Introduce akcipher crypto class
> >    - virtio-crypto: Introduce RSA algorithm
> >
> > v1 -> v2:
> > - Update virtio_crypto.h from v2 version of related kernel patch.
> >
> > v1:
> > - Support akcipher for virtio-crypto.
> > - Introduce akcipher class.
> > - Introduce ASN1 decoder into QEMU.
> > - Implement RSA backend by nettle/hogweed.
> >
> > Lei He (3):
> >    crypto-akcipher: Introduce akcipher types to qapi
> >    crypto: Implement RSA algorithm by hogweed
> >    tests/crypto: Add test suite for crypto akcipher
> >
> > Zhenwei Pi (3):
> >    virtio-crypto: header update
> >    crypto: Introduce akcipher crypto class
> >    virtio-crypto: Introduce RSA algorithm
>
> You forgot to describe the point of this patchset and what its use case is.
> Like any other Linux kernel patchset, that needs to be in the cover letter.
>
> - Eric
Thanks Eric for pointing this missing part.

This feature provides akcipher service offloading capability. QEMU side 
handles asymmetric requests via virtio-crypto devices from guest side, 
do encrypt/decrypt/sign/verify operations on host side, and return the 
result to guest.

This patchset implements a RSA backend by hogweed from nettle, it works 
together with guest patch:
https://lkml.org/lkml/2022/3/1/1425

--
zhenwei pi