Bitcoin wallet recovery (Bitcoin qt V4)

[risin247]

I'm trying to recover a wallet from a few years ago currently running on the client v.4.7.4. The wallet is encrypted, however I know enough of the password to attempt a brute force.  However when I dump the password hash, the hash comes out 64 bytes longer than the standard.  Was this a different formated hash on this version(I know v4 had issues that were patched in v5), or is my wallet.dat file corrupt?

[risin247]

So I tore apart the bitcoin2john python script and saw how it formats the output mode for JTR.  It looks like the public key on the wallet.dat file has a public key size of 130, while the working wallet.dat file is 66.  Does anyone know if this is just the inability of oclhashcat to parse this or is this key messed up.

[achow101]

AFAIK the wallet format changed from 0.4 to 0.5 according to the release notes: https://bitcoin.org/en/release/v0.5.0. The fix may be to install 0.5.0 to create the new file type and then installing the 0.11.2, the latest version.

[achow101]

I have a question? How can I recover my bitcoin wallet? Please somebody solved me this problem. 

Take this to another thread and provide a lot more details about what is wrong. You can use this thread for some details on what we want: https://bitcointalk.org/index.php?topic=1282666.0.