+ /*
+ * There are two ways PSKs can be configured for a server. The
+ * first is the same as a client: psk_identity and
+ * psk_hexphrase. The second is to dynamically configure PSKs
+ * and to have the psk_xlat return them. The second is
+ * compatible with certificates; either the PSK or cert will
+ * be used depending on what the client uses.
+ */
+ if (!client)
+ SSL_CTX_set_psk_server_callback(ctx,
+ psk_server_callback);
+
+