Cannot enable MBEDTLS_SSL_PROTO_TLS1_3 when MBEDTLS_DYNAMIC_BUFFER=y (IDFGH-14708)

[AxelLin]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

Currently MBEDTLS_SSL_PROTO_TLS1_3 depends on !MBEDTLS_DYNAMIC_BUFFER.
But disabling MBEDTLS_DYNAMIC_BUFFER takes too much memory (about 20K) for ESP32.
So due to the limited memory size on esp32, it's almost not possible to support TLS1.3
for existing products using esp32.

I had asked this issue several months ago: #14126 (comment)
However, there is no update even after @AdityaHPatwardhan replied "will soon update regarding dynamic buffers with TLS 1.3". #14126 (comment) (It was 3 Months ago).

Can someone help to update the status? @mahavirj

[AdityaHPatwardhan]

Hi @AxelLin Thanks for raising the issue. Apologies for the delayed response on the earlier thread.
We were working on supporting other features/fixes hence could not prioritise this one. We have started working on this and @hrushikesh430 will update on this as we make progress.