this.digest = (SMB1SigningDigest) digest;
    }

    /**
     * Checks if extended security is enabled for this message
     * @return the extendedSecurity
     */
    public boolean isExtendedSecurity() {
        return this.extendedSecurity;
    }

    @Override
    public final void setSessionId(final long sessionId) {
        // ignore
    }

    /**
     * @param extendedSecurity