Hi Matteo,

Unfortunately we don't have a specific guide for migration from OpenSSL, but the information you need should be available in our API documentation:
https://mbed-tls.readthedocs.io/projects/api/en/latest/api/filelist/

I'm not familiar with SCEP but at a glance, I'd guess that the documentation for pkcs7.h, x509.h and x509_csr.h will be the most useful.

I hope that helps.

Regards,
David Horstmann
Mbed TLS Developer
From: Matteo via mbed-tls <mbed-tls@lists.trustedfirmware.org>
Sent: 27 March 2023 16:00
To: mbed-tls@lists.trustedfirmware.org <mbed-tls@lists.trustedfirmware.org>
Subject: [mbed-tls] Porting from OpenSSL to MbedTLS
 
Dear all,
I need to migrate from OpenSSL to MbedTLS.

I have to implement a SCEP client in my embedded environment composed by FreeRTOS as OS, mbedTLS as security layer and LwIP as network stack.
The best candidate for the SCEP client role is the sscep library. It works very well under Ubuntu, but now I need to use it in my embedded environment, so I have to adapt sscep for MbedTLS.

I would like to know if there is some porting/migration guide from OpenSSL to MbedTLS.

Any kind of suggestion or support will be appreciated.
Thanks in advance.
Regards,
Matteo
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