Quote from: DannyHamilton on March 04, 2013, 02:52:36 AM

Quote from: yourstruly on March 03, 2013, 05:21:37 AM

This is going terribly slow though, but that is because I'm using CPU to try to crack this and I should take a lesson from the mining community and try to use my GPU through CUDA or OpenCL. I was wondering if anyone could help me adapt this script to python or a ruby OpenCL/CUDA library so that I can harness my GPU power to try to crack my password to recover it.

Mining involves generating hashes, which apparently GPU hashes are good at. I'm not sure what algorithm is used for encrypting your private keys, but I guess the first thing to figure out is if a GPU would be any good at that algorithm anyhow.

Then assuming that it is, I would think you could pull an encrypted private key from the wallet and repeatedly attempt to decrypt it, looking to see if the result is a valid private key without having to go back to bitcoind every time.

I will look into this, who knows if bitcoins keeps going up cracking wallets with lost passwords will be worth greater and greater investment. I was considering writing a short story about it.