SSL_export_keying_material exports a value derived from the master secret,
as specified in RFC 5705. It writes |olen| bytes to |out| given a label and
optional context. (Since a zero length context is allowed, the |use_context|
flag controls whether a context is included.)
SSL_export_keying_material exports a value derived from the master secret, as specified in RFC 5705. It writes |olen| bytes to |out| given a label and optional context. (Since a zero length context is allowed, the |use_context| flag controls whether a context is included.)
It returns 1 on success and zero otherwise.