[openssl][uwp] SSL_CTX_load_verify_locations not working for UWP port

[Feng LI <nemokingdom@xxxxxxxxx>]

SSL_CTX_load_verify_locations is required for UWP port to load ca file since OpenSSL will not use the CA of the OS.

But in UWP build, stdio is disabled by default. However, SSL_CTX_load_verify_locations relies on the default X509_STORE file lookup functionality uses stdio (via BIO_s_file). That basically means no verification of peers and hosts is possible with OpenSSL on UWP port.

Is there a way to fix this or if there's a workaround for UWP ?

Thanks,

Feng