Module Version

The protocol and security level that libopenssl uses.

Signature

type t =

\| Sslv23
\| Sslv3
\| Tlsv1
\| Tlsv1_1
\| Tlsv1_2

Best practice: Try your application with Tlsv1_2. That might not work. Use Sslv23 for maximum compatibility. See SSL_CTX_new(3) for more details.

SSLv2 was banned by RFC 6176 which contains a dire list of its shortcomings.

Older versions of OpenSSL do not support Tlsv1_1 and Tlsv1_2. You will be able to link with such a version, but will get an error about an undefined symbol at runtime if you try using the unsupported version.

val compare : t -> t -> int

val t_of_sexp : Sexplib.Sexp.t -> t

val sexp_of_t : t -> Sexplib.Sexp.t

val default : t