Re: [PATCH v3 3/5] crypto: Add RSA support

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Mon, Jun 02, 2025 at 02:36:35PM +0100, Ross Lagerwall wrote:
> In preparation for adding support for livepatch signing, add support for
> RSA crypto.
> 
> The RSA code is extracted from Nettle at tag nettle_3.2_release_20160128
> (https://git.lysator.liu.se/nettle/nettle).
> 
> The MPI code is extracted from Linux at commit eef0df6a5953 (lib/mpi/*).
> 
> Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
> ---
> 
> In v3:
> 
> * Move mpi.c to lib
> * Fix header guard name
> 
>  xen/crypto/Makefile   |    1 +
>  xen/crypto/rsa.c      |  196 +++++
>  xen/include/xen/mpi.h |   68 ++
>  xen/include/xen/rsa.h |   74 ++
>  xen/lib/Makefile      |    1 +
>  xen/lib/mpi.c         | 1729 +++++++++++++++++++++++++++++++++++++++++

Just FTAOD: all the functions imported in mpi.c are used I think?  So
that we don't introduce unreachable code.

Thanks, Roger.