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Bitcoin => Development & Technical Discussion => Topic started by: r0d3r1ck on March 15, 2018, 10:07:48 PM



Title: Best tool to recover a blockchain wallet password
Post by: r0d3r1ck on March 15, 2018, 10:07:48 PM
What's the best tool to crack a Blockchain.info version 0 wallet?

https://github.com/magnumripper/JohnTheRipper/issues/2164 (https://github.com/magnumripper/JohnTheRipper/issues/2164) says use btcrecover
https://github.com/gurnec/btcrecover/issues/97#issuecomment-322803105 (https://github.com/gurnec/btcrecover/issues/97#issuecomment-322803105) seems to suggest JohnTheRipper

So which is it? I have tried btcrecover using the tokens which I thought were in the password without success. So will need to try a dictionary approach (1-2 words followed by 0-4 digits).

Also, i seem to have two different versions of the same wallet.aes.json. The one they sent in the original email in early 2012 and the one that is downloaded when i call the

Code:
https://blockchain.info/wallet/{id}?format=json&resend_code=false

How can this be, unless they held the original unencrypted wallet and use two different methods (e.g. different PBKDF2 key stretching)?

Finally, can anyone tell me whether the 10 character minimum password length was mandatory during early 2012?




Title: Re: Best tool to recover a blockchain wallet password
Post by: SFR10 on March 16, 2018, 07:10:16 AM
What's the best tool to crack a Blockchain.info version 0 wallet?
I haven't tried any of the above tools you mentioned, but you can try the following instead:

1. Recover Wallet (https://blockchain.info/wallet/forgot-password)
2. Remind, Recover, & Reset (https://blog.blockchain.com/2016/09/27/remind-recover-reset-3-helpful-tools-to-regain-wallet-access/)