Mourad120 No, it cann't possible in our life. "1024 bit key" cann't be found. "64 bit key" was founded for 1757 days. So, "1024 bit key" you will brutforce all your life :)
The key length is not everything. If the algorithm is weak or not well implemented you don't do any brutforcing - you just try to find the key in the memory or elsewhere and thats it - or how to you think aacs and pay-tv were cracked?