if ( config.getMaximumVersion() != null && config.getMaximumVersion().atLeast(DialectVersion.SMB311) ) {
            byte[] salt = new byte[32];
            config.getRandom().nextBytes(salt);
            negoContexts.add(new PreauthIntegrityNegotiateContext(config, new int[] {
                PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512
            }, salt));
            this.preauthSalt = salt;