Looking at cracking a WPA/WPA2 handshake predetermined at 8 Characters long only. This means that there are: 208,827,064,576 possible combinations.
Assuming you can get up to 8 GPU's per EC2 instance (I could not find out what the maximum is or what the GPU spec is on AWS) you could enable up to 336000 H/s.
With 8 GPUs 208827064576/336000 = 621509 H/s 621509 / 60 = 10358 minutes (duration) 10358 / 60 = 172 hours (duration) 172 / 24 = 7.1 days (duration)
With 1 GPUs 208827064576/42000 = 4972072 H/s 4972072 / 60 = 82867 minutes (duration) 82867 / 60 = 1381 hours (duration) 1381 / 24 = 57 days (duration)
Please check my logic here as I have not done any of this in practice. According to amazon the cost of $0.400/hour for eg1.2xlarge. I am unable to figure out from AWS documentation what the compute power is with EC2 Elastic GPU.
So assuming $0.04/hour *8 (assuming 8 GPU) it would cost $550 or with 1 GPU it would cost $552.
I am looking at review of cost vs GPU/CPU compute power for brute force attacks.
So my question is two part one... can you double check my thinking and two if anyone can clarify the aws/gpu performance vs cost element.