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Questions tagged [recover-private-key]

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20 votes
3 answers
24k views

Recovering private key when someone uses the same k twice in ECDSA signatures

In this blog: https://web.archive.org/web/20160308014317/http://www.nilsschneider.net/2013/01/28/recovering-bitcoin-private-keys.html the author showed a case that using same k twice will leak private ...
jiedo's user avatar
  • 325
16 votes
4 answers
5k views

Cannot access my bitcoins because my wallet is still synchronising. What can I do to spend them immediately?

I have purchased bitcoins and have downloaded Bitcoin-QT, but my wallet is taking forever to synchronize to the network. I can't access my wallet because it is still in the sync process. I have the ...
Alex Jackson's user avatar
8 votes
3 answers
9k views

How can I find a Bitcoin private key that I saved in a text file?

I certainly saved my private key in a text file previously, but I don't know where now. Is there any way to recover my private key?
Mohammad Rajabi's user avatar
7 votes
4 answers
5k views

19 out of 24 words of BIP39 passphrase (brute-force last 5?)

I have managed to lose 5 words of my 24 word Ledger Nano S recovery phrase. I have words 1-19 but I am missing words 20-24. I have significant holdings on the wallet so would very much like to recover ...
JGoodwin10's user avatar
6 votes
1 answer
1k views

Can we derive parent’s private key using child’s private key?

In the book named Mastering Bitcoin by Andreas, the author described the usage of derived child keys. One thing I noted was that he said(page 108), The derivation function is a one-way function, ...
Gnanesh's user avatar
  • 163
6 votes
1 answer
982 views

Recovering the last few digits of a Litecoin private key

Is it possible to recover the last few lost digits (10) of my Litecoin wallet private key? Are there any recovery tools available? Or will I have to try and roll my own? Crucially, what crypto ...
bedeabc's user avatar
  • 161
4 votes
1 answer
3k views

How to derive the private key associated with a Coinbase multi-sig vault address

When I created a multi-sig vault on Coinbase, I obtained: A master public key in BIP32 extended format, of depth 0, parent fingerprint 00000000 and child index 0. A private key in WIF format ("user ...
Erwin Mayer's user avatar
4 votes
1 answer
3k views

How to recover coins from a wallet that uses BIP32 Deterministic Keys?

Say I am using an online wallet that uses BIP32 deterministic keys and the site goes down. I have a backup of my seed (passphrase). Is there a github repo that I can download, run on an offline ...
user avatar
4 votes
1 answer
2k views

Manually extracting ledger nano s wallet public / private keys using "Mnemonic Code Converter" from ledger

I have the following example seed: morning twist board pelican denial retire middle inherit evil ritual omit fade general toddler grace evoke recipe sad minor destroy public dawn scissors cube ...
Patoshi パトシ's user avatar
3 votes
2 answers
7k views

How can I recover the missing end of my private key?

I found this paper among my old stuff. What can you do with it? Is there any way to fill in the missing part?
gabalex's user avatar
  • 21
3 votes
2 answers
1k views

Recovering wallet using BIP32/wordlist/.priv file

I was using Msigna but it's having issues connecting to the localhost (Running updated bitcoinqt). I sent coins to my old account without waiting for sync (noob move) but now I'm unable to access the ...
Stormtauren's user avatar
2 votes
2 answers
5k views

How does Trezor's wallet recovery work if the private key never leaves the device?

If the private keys never leave the TREZOR, how can they be restored if I lose it? I am assuming that maybe the private key is generated on the TREZOR and then encrypted before being sent to ...
trezor-nub's user avatar
2 votes
1 answer
2k views

How can 24 words allow a user to recover a public and private key?

I understand that the Ledger Nano S allows one to create a 24 word recovery phrase. A) Why is it better to have users keep a 24 word recovery phase as backup than to keep the public and private key ...
user1283776's user avatar
2 votes
4 answers
384 views

Why were private keys made unrecoverable?

Why were lost bitcoin private keys made unrecoverable? Is there a way to do this and if not shouldn't a way be created since people will lose their money.
Errol's user avatar
  • 127
2 votes
2 answers
1k views

Have I lost all my Bitcoin, having sent them to a Bitcoin Cash wallet?

I made a pretty big mistake of sending my Bitcoin that I had on Coinbase to a Bitcoin Cash wallet that I own on my Exodus wallet instead of the Bitcoin wallet. I can see on Coinbase that the address ...
Serberuss's user avatar
  • 123
2 votes
2 answers
4k views

Where can I find code that allows me to calculate Z1 and Z2 from an ECDSA signature?

By following Recovering Bitcoin private keys using weak signatures from the blockchain, I am able to do other calculations, but I have no idea how to calculate Z1 or Z2. There was a public code ...
user1111111111111's user avatar
2 votes
1 answer
216 views

How are keys for lightning channels currently created?

Keys for creating lightning channels seem to be derived differently than in usual bitcoin wallets. Lightning node data corruption, despite backup of master seed phrase, seems to prevent recovery of ...
Shaun's user avatar
  • 35
2 votes
1 answer
2k views

How do ckey, mkey and the private key fit together in Bitcoin?

What is the correlation between ckey, mkey and a private key in bitcoin? How can I retrieve my lost private key from ckey and mkey?
Alban Fredon's user avatar
2 votes
2 answers
3k views

Bitcoin Base 58 wif format Private Key recovery Front 5 character are missing [duplicate]

I lost my private key front 5 character can i gain back my private key my address is 1PfNh5fRcE9JKDmicD2Rh3pexGwce1LqyU i didn't have any backup. If any one help me to get my private key back i will ...
Chetan tiwari's user avatar
2 votes
1 answer
1k views

File structure of wallet.dat

I have a corrupted wallet.dat that is unreadable by pywallet and db5.3-util. Having a look in the corrupted wallet in a hex editor, its easy to find the plaintext pubkeys. Is the structure of the dat ...
watermelon's user avatar
2 votes
1 answer
2k views

Is it still possible to recover Multibit Classic wallet from multibit.key file? [duplicate]

I have the file mulibit.key (long string starting with U2FsdGVkX19E+pw) and password. Cannot find the Multibit Classic wallet to import the key and export to Electrum... Tried to decrypt the key with ...
oskar333's user avatar
2 votes
1 answer
4k views

How to get the private keys out of old wallet.dat without syncing blockchain

I have old wallet.dat files of Bitcoin, Litecoin, Bitcoin Cash, Omnicore. My Bitcoin Cash wallet.dat has unbroadcasted transactions inside, so I am afraid that others might also have unbroadcasted ...
Igoris Skinderis's user avatar
2 votes
1 answer
498 views

How do wallets (like jaxx) pair with each other using the mnemonic seed phrase?

I'm a bit puzzled on how a wallet pairing process works. I know you can restore you parent private key from a mnemonic seed phrase. This will give you a parent private key. Using this private key how ...
Cristi's user avatar
  • 23
2 votes
1 answer
2k views

How can I get the private key from multibit?

The support section of the MultiBit website shows a completely different UI as well as many options that the current version doesn't have. How can I find my private key?
Ben P's user avatar
  • 21
2 votes
1 answer
229 views

Partial private key recovery

I had the pleasure of setting up a Bitcoin wallet using the Blue Wallet app and diligently noted down the 52 characters of my private key on a piece of paper for backup purposes. Upon revisiting the ...
minodo's user avatar
  • 21
2 votes
0 answers
284 views

Recovering 2 of 2 multisig HD Wallet with bip38 encrypted private key

I have been trying to figure out if it is possible to restore my wallet with the current information I have. The wallet is a 2 of 2 multisignature HD wallet The first key is Bip38 and requires a ...
user116710's user avatar
2 votes
1 answer
143 views

How to distinguish watch-only addresses from spendable addresses when deleting addresses

An answer to I have watched addresses in my wallet..how do i use them? says: "If you do not have the private keys for those addresses, then they are not yours and you cannot do anything with ...
Miss Fab's user avatar
1 vote
1 answer
1k views

Can I recover my own wallet from the public key? [duplicate]

I made a wallet years back. It has a good amount of Bitcoin then I wiped and sold my laptop. Now somehow I found my wallet address public key. Is it possible to get the private key somehow?
Danish Ali's user avatar
1 vote
1 answer
7k views

How to unlock private key of bitcoin

I need help on how to get the private key....i have that much on my account and i want to cash out very soon
George 's user avatar
1 vote
1 answer
3k views

Recover Bitcoin From Transaction ID

Back in 2013 I bought some bitcoin for a relatively low price, and stored them in an Electrum wallet on my PC. However, I changed PCs a year or two later, and forgot to copy the bitcoin wallet over. ...
Gavin Coates's user avatar
1 vote
3 answers
956 views

Recovery after losing wallet.dat and formatting hard disk

I have received the bitcoin way back in 2013 in Bitcoin Core. At that time I don't know about the importance of wallet.dat - I have formatted my hard disk and install Bitcoin Core again in 2017 but ...
Pratik Shah's user avatar
1 vote
2 answers
3k views

If anyone with your seed phrase can generate your wallet private keys, what is the advantage of a hardware wallet?

When you start using a cryptocurrency hardware wallet, you get to write down a seed phrase in some physical medium (paper, metal, etc.) so you can regain access to your funds if you lose the hardware ...
Gehrard Raven's user avatar
1 vote
2 answers
2k views

Is having a copy of my wallet.dat file enough to recover lost Bitcoin? [duplicate]

I have been using Bitcoin-qt to mine bitcoin. I am a little worried about losing my coins on my computer, so I have made a backup of my wallet.dat file and put it somewhere safe. Is this the right ...
Barney Chambers's user avatar
1 vote
2 answers
5k views

"Lost" password to BIP38 encrypted private key, encrypter may be faulty (Bippy)

Few years ago I encrypted my Bitcoin private key for cold storage with an offline app called Bippy. Recently I tried to access my wallet by decrypting the private key, but my password was rejected. I'...
Pantalaimon's user avatar
1 vote
1 answer
116 views

How does bitcoin wallet's backup restore forwarding transactions?

I've installed bitcoin wallet on my phone and had some transactions. I backed up my wallet and after backing up did some other transactions. I supposed that the back up just would restore my wallet ...
Amir reza Riahi's user avatar
1 vote
2 answers
393 views

Privatekey Recovery

so the question is about btc privatekey recovery . Is there any way to recover/re calculate privatekey using these details : SHA-256 RipeMD-160 public key public address rsz signatures ( non-...
Dion Winbush's user avatar
1 vote
1 answer
918 views

How does mnemonic recover a single private key?

As I understand the algorithm of mnemonic (BIP39) can generate billions of private keys from your 14-24 words. Whats the mechanism that some wallets/clients use to recover a single private key, my ...
Enzo's user avatar
  • 159
1 vote
1 answer
3k views

Trying to recover a blockchain.info wallet from 2013 w/ a 29 (or 13?) word phrase

I'm trying to check in on some BTC I stored in a blockchain.info wallet 4 years ago (12/2013). I can log into my account just fine, but the wallet with my coins still needs a private key. I've got a ...
Steve's user avatar
  • 131
1 vote
2 answers
2k views

Recovering Hive Wallet private key with passphrase

Because Hive Wallet shut down and I didn't export the private keys, I have no way to access my Bitcoins. Is there someway, given a passphrase, to find the private key?Thanks in advance.P.S I already ...
user avatar
1 vote
1 answer
553 views

How can I recover my private key?

I have a part of an UNCOMPRESSED private key. Starts at 5, missing 10 characters at the end. I saw the code on this forum and used it in python. But when working with my key, it gives out 2 incorrect ...
Tasty Fruit's user avatar
1 vote
2 answers
895 views

Python Code - import error : cannot import name "privtopub" from 'bitcoin'

Hello everyone when I start this code on PYCHARM looks like no problem. But when I turned this code from python to exe and exe don't start and it says: import error: cannot import name "...
Umut Beyaztaş's user avatar
1 vote
1 answer
383 views

How to decrypt MultiBit private key with 128 bytes line and 52 bytes line?

I want to recover my bitcoin private key stored by MultiBit. I've written down private key as text while using MultiBit classic. I don't remember how I get the text of private key. The text consists ...
youngrok's user avatar
1 vote
2 answers
1k views

Is it safe to store seed phrases (private keys) in a bank vault?

If written on a piece of paper, would the recovery seed phrase or questions for accessing a collection of web wallets and hardware wallets be safe to keep in a mini vault drawer at the bank? Do bank ...
user610620's user avatar
1 vote
1 answer
2k views

GREP help: Bitcoin address/key buried as text somewhere on hdd

So in a drunken moment of genius I had forgotten about, I bought some bitcoin way back. And I buried the address and key in some file... I was being tricky lol. That likely also led me to abandon a ...
StormShadow's user avatar
1 vote
1 answer
778 views

Copying an old private key (from 2011) into Electrum: any risks?

I have an old phone, with a version of the Bitcoin wallet from 2011. It has a few satoshis in it, which are now worth enough to be worth recovering. However, the phone can't connect to the Internet. ...
Giles Thomas's user avatar
1 vote
1 answer
696 views

Trezor; How is it true cold storage if their is a recovery seed?

I don't understand how a Trezor is considered cold storage if you can lose it, and then recover your keys through their recovery seed and another Trezor. Where are the keys coming from? Where are ...
Bischoin's user avatar
1 vote
0 answers
27 views

Which wallets support French seed-phrases? [duplicate]

I found an old backup seedphrase but it is has French words in it, and I've been struggling to find wallet to restore it as it seems most wallets support only English. There has to be a wallet that ...
Moe's user avatar
  • 11
1 vote
2 answers
7k views

how do i brute force my wallet.dat to get my private key

i am not really a computer programmer, but i want to get my private key from my wallet.dat, i have just the wallet.dat file and the public address where the bitcion was send. From my previous ...
Andrew's user avatar
  • 21
1 vote
0 answers
492 views

Unable to recover an old Android Bitcoin Wallet backup

So here's the thing. I have an old Bitcoin Wallet backup from 2015 that I'm trying to restore. However when I try to import it back into the android application, even though I'm 99.9%** sure I got the ...
Renn Kane's user avatar
  • 111
1 vote
0 answers
89 views

How to generate a very secure wallet with Electrum?

For a poor-mans glacier protocol, looking for: One private key – an alphanumeric string used to secure the funds The cold storage address – an alphanumeric string designating the virtual “location” of ...
Nicholas Saunders's user avatar