prepareSimpleSid(buffer, offset + currentOffset);
            currentOffset += 20; // Simple SID size
        } else {
            SMBUtil.writeInt4(0, buffer, offset + 4);
        }

        // Group SID offset
        if (includeGroup) {
            SMBUtil.writeInt4(currentOffset, buffer, offset + 8);
            prepareSimpleSid(buffer, offset + currentOffset);