Quote from: findinkeys on July 29, 2020, 11:28:24 PM

I might need to start a new thread in that case if I do.. sorry my friends! I saw this post and am in a similar situation and I am trying every option exhaustingly as I have a similar (more) balance.. with a corrupt wallet from 2012... I too offer a reward for successful results, I am of course trying to learn everything on my own and am not trying to send my wallet (obviously) which makes things as tough as can be of course, anyway i wanted to quote the post concerning the link that took me to (https://github.com/bitcoin/bitcoin/blob/48b5b84ee511d5ccd0d47bb0018c1b3c9ddebeff/src/wallet/walletdb.cpp)
which is the src/wallet/walletdb.cpp source code.. I have that same type of file (a little different/but same just older) and have been reading about going through the source code to retrieve the "redeem script" or the "derivation method" but first I wanted to ask .. what is that src/wallet/walletdb.cpp specifically? as I don't see any strings but I do see key all over.. and I also read the db can leave bits of unencrypted private keys in the db slack space, I just don't follow direction too well but I will try to follow the mentioned directions to get my wallet back, also wanted to ask (off subject mind racing) my python said "cannot import name 'generator_secp256k1' from 'pycoin.ecdsa" when trying to install bitwalletrecover. anyway hoping to get help with this as I have not asked for help on a forum before but been trying for years to figure it out, guess i finally reached my breaking point for my need to get help with this!!! thankyou for reading and I understand walletrecoveryservices is not trying to help me as I have already tried.. did I not save the right file? did I corrupt it and lose the info I need when I saved it possibly by saving it wrong?
hoping I am not S.O.L!! thankyou for reading I appreciate all and any help, and as I said a successful return of my only hope in the world to not restart my broke ass from scratch will be compensated. CHEERS!

Quote from: kahc on December 16, 2017, 07:39:05 PM

Your unencrypted wallet.dat sounds pretty messed up if not even one 'key' related entry was found.

Take a look at this https://github.com/bitcoin/bitcoin/blob/48b5b84ee511d5ccd0d47bb0018c1b3c9ddebeff/src/wallet/walletdb.cpp
There should be plenty of entries starting or ending with 'key'.

Bro; please share with me you have wallet.dat file in your hand. Also please it is un-encrypted old wallet.dat. Please follow installation on https://github.com/jackjack-jj/pywallet

After that please run the as following script:

#!/usr/bin/env python2
import sys
import struct
from bsddb.db import *
from hashlib import sha256

# Dumps the private keys from an unencrypted wallet.dat file.
# Inspired by pywallet.
# Run with Python 2.7.
# Donations: 34rHZwgXDnkKvrBAU2fJAhjySTTEFroekd.

B58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"

if not len(sys.argv) == 2:
print("Usage: %s wallet.dat" % sys.argv[2])
sys.exit(1)

def read_size(buffer, offset):
size = ord(buffer[offset])
offset += 1

if size == 0xfd:
size = struct.unpack_from("<H", buffer, offset)[0]
offset += 2
if size == 0xfe:
size = struct.unpack_from("<I", buffer, offset)[0]
offset += 4
if size == 0xff:
size = struct.unpack_from("<Q", buffer, offset)[0]
offset += 8

return offset, size

def read_string(buffer, offset):
offset, string_len = read_size(buffer, offset)
return offset + string_len, buffer[offset: offset + string_len]

def b58_encode(d):
out = ""
p = 0
x = 0

while ord(d[0]) == 0:
out += "1"
d = d[1:]

for i, v in enumerate(d[::-1]):
x += ord(v)*(256**i)

while x > 58**(p+1):
p += 1

while p >= 0:
a, x = divmod(x, 58**p)
out += B58[a]
p -= 1

return out

def b58check_encode(d):
checksum = sha256(sha256(d).digest()).digest()[:4]
return b58_encode(d + checksum)

db = DB()
db.open(sys.argv[1], "main", DB_BTREE, DB_RDONLY)

items = db.items()

for item in items:
k, v = item
koff, voff = 0, 0
koff, item_type = read_string(k, koff)

if item_type == "key":
koff, pubkey = read_string(k, koff)
voff, privkey = read_string(v, voff)

if len(privkey) == 279:
secret = privkey[9:9+32]
else:
secret = privkey[8:8+32]

if pubkey[0] != "\x04":
secret += "\x01"

print(b58check_encode("\x80" + secret))
#print(secret.encode("hex"))
db.close()

You have output compressed private key as like:
KxzTqVvTXB9VJTZ25xZk7yYq4V4gon8HsoTkbADhSUZVe7q5LUeQ
L2TResn8sq2K7NTH8R4SJAhB2Rf4iFEY3WwDGwqHNh3Ya1Y9uDpX

Thanks....

Guess you have to resort to: https://walletrecoveryservices.com/ afterall.