/**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#verifyMIC(byte[], byte[])
     */
    @Override
    public void verifyMIC ( byte[] data, byte[] mic ) throws CIFSException {
        if ( !this.completed ) {
            throw new CIFSException("Context is not established");
        }
        this.mechContext.verifyMIC(data, mic);
    }


    /**
     * {@inheritDoc}
     *

        }
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SSPContext#verifyMIC(byte[], byte[])
     */
    @Override
    public void verifyMIC ( byte[] data, byte[] mic ) throws CIFSException {
        try {
            this.gssContext.verifyMIC(mic, 0, mic.length, data, 0, data.length, new MessageProp(false));
        }
        catch ( GSSException e ) {

     * @throws CIFSException
     */
    byte[] calculateMIC ( byte[] data ) throws CIFSException;


    /**
     * @param data
     * @param mic
     * @throws CIFSException
     */
    void verifyMIC ( byte[] data, byte[] mic ) throws CIFSException;


    /**
     * @return whether MIC can be used
     */
    boolean isMICAvailable ();

        System.arraycopy(trunc, 0, sig, 4, 8); // checksum
        SMBUtil.writeInt4(seqNum, sig, 12); // seqNum

        return sig;
    }


    @Override
    public void verifyMIC ( byte[] data, byte[] mic ) throws CIFSException {
        byte[] sk = this.verifyKey;
        if ( sk == null ) {
            throw new CIFSException("Signing is not initialized");
        }