Questions tagged [recover-private-key]

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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 ...
1
vote
1answer
902 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?
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 ...
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
5
votes
1answer
788 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, ...
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 ...
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 ...
2
votes
4answers
347 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.
1
vote
0answers
63 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 ...
0
votes
1answer
1k views

Private keys importing in format got by dumpprivkey

I backed up my private keys this way: Opened my peerunity wallet (bitcoin-qt fork), opened Debug window, issued dumpprivkey and I got my private key. Then, I wrote it on a piece of paper (!). Now, I ...