return;
        }

        final Smb2NegotiateResponse nego = (Smb2NegotiateResponse) trans.getNegotiateResponse();
        if (nego.getSelectedDialect().atLeast(DialectVersion.SMB311)) {
            // have preauth integrity instead
            log.debug("Secure negotiation does not apply, is SMB3.1");
            return;
        }

            this.supportsEncryption = tc.getConfig().isEncryptionEnabled();
        }

        if (this.selectedDialect.atLeast(DialectVersion.SMB311) && !checkNegotiateContexts(r, this.commonCapabilities)) {
            return false;
        }

        final int maxBufferSize = tc.getConfig().getTransactionBufferSize();
        this.maxReadSize =

    }

    private int getAuthTagLength() {
        return 16; // All SMB3 ciphers use 16-byte authentication tags
    }

    private int getTransformFlags() {
        if (this.dialect.atLeast(DialectVersion.SMB311)) {
            return TRANSFORM_FLAG_ENCRYPTED;
        }
        // For SMB 3.0/3.0.2, this field contains the encryption algorithm
        return this.cipherId;
    }

    private byte[] getEncryptionKey() {

        // Default to SMB2 minimum for security - SMB1 is deprecated and insecure
        this.minVersion = min != null ? min : DialectVersion.SMB202;
        this.maxVersion = max != null ? max : DialectVersion.SMB311;

        if (this.minVersion.atLeast(this.maxVersion)) {
            this.maxVersion = this.minVersion;
        }
    }

    /**

        boolean anonymous = this.credentials.isAnonymous();
        long sessId = 0;

        boolean preauthIntegrity = negoResp.getSelectedDialect().atLeast(DialectVersion.SMB311);
        this.preauthIntegrityHash = preauthIntegrity ? trans.getPreauthIntegrityHash() : null;

        if (this.preauthIntegrityHash != null && log.isDebugEnabled()) {

            Properties props = new Properties();
            props.setProperty("jcifs.smb.client.minVersion", "SMB202");
            props.setProperty("jcifs.smb.client.maxVersion", "SMB311");
            props.setProperty("jcifs.smb.client.responseTimeout", "30000");
            props.setProperty("jcifs.smb.client.soTimeout", "35000");

            // Create a new configuration and context