by default.
* TCP Fast Open (RFC7413) support is available on Linux, macOS, and FreeBSD
where enabled and supported.
+ * Full support for provider-based/pluggable signature algorithms in TLS 1.3
+ operations as well as X.509 data structure support. With a suitable provider
+ this fully enables use of post-quantum/quantum-safe cryptography.
OpenSSL 3.1
-----------