There is an issue with server hint and some clients will not work properly.
If you don't specify a server hint, the server hint should not be sent. But in the code what you specify finally is a zero-length bytes object, so you get the hint sent with length equals to zero.
What I did for not changing the c source is:
-In sslpsk.py, in function _ssl_set_psk_server_callback, change
_ = _sslpsk.sslpsk_use_psk_identity_hint(_sslobj(sock), hint if hint else b"")
for
if hint:
_ = _sslpsk.sslpsk_use_psk_identity_hint(_sslobj(sock), hint)
There is an issue with server hint and some clients will not work properly. If you don't specify a server hint, the server hint should not be sent. But in the code what you specify finally is a zero-length bytes object, so you get the hint sent with length equals to zero.
What I did for not changing the c source is:
-In sslpsk.py, in function
_ssl_set_psk_server_callback, change_ = _sslpsk.sslpsk_use_psk_identity_hint(_sslobj(sock), hint if hint else b"")forregards