I need to use mbedtls (bundled with Nordic SDK, and unsure of version) to do some cloud-based functionality (AWS cloud, using OpenAM with a CA chain containing 4 certs).  According to something I read, I need to use a pkcs7 container?  If so, it seems that mbedtls does not support pkcs7?  I did hand-copy some code from a PR, but as I was looking through the pkcs7.c, it seems that it still only supports the CA Root.  Is this true?
Is there anyone that can give me a hand in solving what I am attempting to do?
Thank you
/Loren Rogers