Configures the engine to <i>require</i> client authentication. This
option is only useful for engines in the server mode.
<P>
An engine's client authentication setting is one of the following:
<ul>
<li> client authentication required
<li> client authentication requested
<li> no client authentication desired
</ul>
<P>
Unlike {@link #setWantClientAuth(bool)}, if this option is set and
the client chooses not to provide authentication information
about itself, <i>the negotiations will stop and the engine will
begin its closure procedure</i>.
<P>
Calling this method overrides any previous setting made by
this method or {@link #setWantClientAuth(bool)}.
@param need set to true if client authentication is required,
or false if no client authentication is desired.
@see #getNeedClientAuth()
@see #setWantClientAuth(bool)
@see #getWantClientAuth()
@see #setUseClientMode(bool)
Configures the engine to <i>require</i> client authentication. This option is only useful for engines in the server mode. <P> An engine's client authentication setting is one of the following: <ul> <li> client authentication required <li> client authentication requested <li> no client authentication desired </ul> <P> Unlike {@link #setWantClientAuth(bool)}, if this option is set and the client chooses not to provide authentication information about itself, <i>the negotiations will stop and the engine will begin its closure procedure</i>. <P> Calling this method overrides any previous setting made by this method or {@link #setWantClientAuth(bool)}.
@param need set to true if client authentication is required, or false if no client authentication is desired. @see #getNeedClientAuth() @see #setWantClientAuth(bool) @see #getWantClientAuth() @see #setUseClientMode(bool)