public void setProxyEncryptionMethod(EncryptionMethod proxyEncryptionMethod) {
        this.proxyEncryptionMethod = proxyEncryptionMethod;
    }
Sets the type of encryption which should be used when connecting to
guacd, if any.

@param proxyEncryptionMethod
    The type of encryption required by the desired guacd instance, or
    null if the encryption method of the default guacd instance should
    be used.
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/apache/guacamole/auth/jdbc/connection/ConnectionModel.java