Questions tagged [recover-private-key]

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18
votes
3answers
18k 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 ...
16
votes
4answers
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 ...
6
votes
4answers
3k 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 ...
6
votes
1answer
852 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 ...
5
votes
3answers
7k 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?
5
votes
1answer
745 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, ...
4
votes
1answer
2k 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 ...
4
votes
1answer
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 ...
4
votes
1answer
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 ...
3
votes
2answers
942 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 ...
2
votes
2answers
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 ...
2
votes
1answer
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 ...
2
votes
4answers
339 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.
2
votes
2answers
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 ...
2
votes
2answers
3k 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 ...
2
votes
1answer
99 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 ...
2
votes
1answer
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?
2
votes
1answer
413 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 ...
2
votes
0answers
100 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 ...
2
votes
1answer
56 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 ...
1
vote
2answers
2k 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?
1
vote
1answer
5k 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
1
vote
1answer
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. ...
1
vote
1answer
880 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?
1
vote
2answers
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 ...
1
vote
2answers
3k 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'...
1
vote
2answers
186 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 ...
1
vote
2answers
268 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-...
1
vote
1answer
874 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 ...
1
vote
1answer
2k 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 ...
1
vote
2answers
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 ...
1
vote
1answer
95 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 "...
1
vote
1answer
2k 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 ...
1
vote
1answer
440 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 ...
1
vote
1answer
618 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. ...
1
vote
1answer
629 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 ...
1
vote
0answers
21 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 ...
1
vote
0answers
252 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 ...
1
vote
1answer
738 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 ...
1
vote
0answers
60 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 ...
1
vote
0answers
1k views

18 word mnemonic seed that contains words outside of BIP39 wordlist, struggling to recover BTC

I recently recovered a document containing information relating to some BTC I purchased in 2015. I only have: a passphrase/password, an 18 word mnemonic phrase(the majority of which are not in the ...
1
vote
0answers
167 views

Pguc coin transfer to address of bitcoin by mistake

I have an account registered with PGUC. In the spend wallet they ask for the exchange address where to transfer the coins. What happened I need to transfer these coins in Pguc address but by mistake I ...
1
vote
2answers
853 views

How do I export my private key on MultiBit

I am using Multbit on my desktop, and I want to use my wallet on a another device like my phone.
1
vote
0answers
143 views

How do I export a private key from my Bitcoin-QT wallet if the wallet isn't synced? [duplicate]

I started syncing a bitcoin-qt client, and had somebody send me funds to an address generated in the client. I then stupidly decided to speed up the syncing process and downloaded a torrent of ...
0
votes
1answer
541 views

Can you recover seed words with passphrase on bitcoin node?

I have a btc node (Bitcoin Core version v0.17.0.1 (64-bit))running on my Windows 10 computer, as part of regular backup I have realized I don't have the seed words but I do have the passphrase. It has ...
0
votes
2answers
883 views

Is there a database of wallet addresses with lost private keys?

Hi is there a database of wallet addresses that have lost the private keys?
0
votes
1answer
94 views

Exporting private key from expired bitcoin address (now showing as watch-only)

Is there a way, in theory, to export private key from the bitcoin address (watch-only) that is now expired, but used once before? (even to get a different format of that key, numeric one instead of QR ...
0
votes
2answers
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 ...
0
votes
1answer
106 views

Not able to open BTC Wallet [duplicate]

My friend lost his PRIVATE Keys. Any way we can still retrieve the BTC Wallet? No other info can be provided only BTC Address.
0
votes
1answer
71 views

Bitcoins purchased in 2013

I purchased Bitcoin in either 2012 or 2013 and at the time noted down 2 sets of 34-character addresses each with a 12 character password, both 34 character strings start with a "1". I'm not ...