Re: [mbed-tls] PKCS7 Generation Contribution - mbed-tls

10 Nov 2020


      Hi Nick,
It would be great to have even partial support of PKCS#7 in Mbed TLS and
we would welcome your contribution!
You can find some guidance in CONTRIBUTING.md
(https://github.com/ARMmbed/mbedtls/blob/development/CONTRIBUTING.md).
Feel free to ask on the mailing list if anything is unclear.
Note that there is a work in progress for adding PKCS#7 parsing:
https://github.com/ARMmbed/mbedtls/pull/3431 . It may help to see what
it does, but also note the review comments that point out some remaining
issues. If you and naynajain work on parsing and generation at the same
time, you'll need to synchronize since both sides will need to create
pkcs7.[hc].
-- 
Gilles Peskine
Mbed TLS developer

On 10/11/2020 17:28, Nick Child via mbed-tls wrote:
> Hello,
>
> For one of my projects, I had to create a PKCS7 generation/builder. I
> noticed mbedtls currently has no support for PKCS7. After much trial
> and error, I was able to use mbedtls functions to create a PKCS7
> structure for Signed Data. I was wondering if this something that
> might be useful in later versions of mbedtls? The code currently has a
> long way to go until it meets mbedtls coding standards, but I figured
> I would ask if it is even possible and worth the efforts before
> getting into it. I am also a rookie when it comes to open source
> contributions, so I was hoping for some guidance regarding merging
> upstream.
>
> Thanks for your time,
>
> Nick Child
>