Questions tagged [hardware-wallet]
A hardware wallet stores one's private keys in a secure hardware device.
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Can brand new hardware wallet have seed phrase initiated via sparrow? Or do is it need to be through wallet OEMs site only?
Pretty straightforward. Can I initialize/generate seed phrase of blockstream jade via sparrow? Or do I need to go through blockstream's site to do this?
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Can I connect a hardware wallet to Bitcoin Core using HWI?
Presumably HWI on github.com is to do with creating a hardware wallet interface with Bitcoin Core. Am I correct?
What stage is development at presently?
Will one be able to connect a hardware wallet ...
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Why are n public keys needed for reconstitution of an x of n multisig?
Trying to conceptually understand why I must store the public keys of the n hardware wallets in an x of n multisig set up? Only x of the seed phrases/private keys are needed to reconstitute/recover ...
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Should different brands of hardware wallets be used in multisig setups?
Is there genuinely a compelling reason to use different brands of hardware wallets in multisig setups? I am contemplating using a series of Coldcard hardware wallets in a multisig setup but some ...
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is it possible to recover my exodus wallet, from a backup file?
I have a one year old back-up (exodus.zip). When extracted from ZIP and placed that folder in AppData/Roaming/ now it asks for passwords which I don't remember anymore.
Inside the 'exodus.wallet' ...
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How is the entropy created for generating the mnemonic on the Jade hardware wallet?
On the Jade hardware wallet/signer how is the entropy created for generating the mnemonic? Where is the code located in Jade repo?
This was asked by samsam380.
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Terminology on what do hardware wallets actually store?
Going by the BIP39 standard, it seems that what is stored is the seed (lets call it A). But what is confusing is that people elsewhere seem to be conflating the mnemonic (the 24 or 12 word list, lets ...
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Is a smart card more than an non-updatable/inacessible and tamper resistant software?
This question is asked in light of the latest Ledger Recover debacle, and an earlier question.
I'm trying to understand whether devices such as smart cards or YubiKeys are anything more than than a ...
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Which hardware wallets are technically capable of exporting the private key?
In light of recent events with Ledger, are all other hardware wallets susceptible to being able to export the private key as well, possibly with a firmware update?
If the former answer is true for ...
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Is there a way to make a provably non-fake HW wallet?
With the current hardware wallets, there is AFAIK no way for a customer to verify if the HW wallet indeed generates secure, private addresses. All checks actually just use various methods to verify ...
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What is the controversy with Ledger's new recovery service?
There has been a lot of controversy recently over Ledger's new recovery service which will shard your seed out to third parties for storage. What is the controversy?
This question was posed by ...
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Is it safe to connect my HW wallet to a computer which is connected to the internet?
Cold wallets are those that have never been connected to the internet, and are safer than hot ones, which have been exposed to it.
If I connect my HW wallet to a computer which is connected to the ...
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How to hold a fiduciary accountable?
Fiduciaries (executors, trustees, guardians) hold and manage funds on behalf of others (heirs, beneficiaries, etc). So it's important to be able to audit a fiduciary's transactions, to ensure he hasn'...
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Message signing with airgapped wallet that doesn't support it
I need to implement message signing for various HWs, many of them support it on a firmware level, but some airgapped wallets like SeedSigner or Jade still don't. I was wondering if there's a way to ...
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Anti-exfil protocol can't be verified on multiple hardware wallets
Regarding the nonce side channel attacks detailed in posts like this one by Blockstream. Which references this mailing list by Pieter Wuille. The idea is to add another layer of protection against a ...
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Prior to collapse, how could FTX honor btc withdrawals if filings show they held no bitcoin?
I have seen in the news that, in bankruptcy filings, it was revealed that FTX held no bitcoin. As far as I can find on the internet there's nothing pre-implosion that suggests user were explicitly ...
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Where to find the seed for the wallets that were created inside BitBox by Shift Crypto
I bought the Swiss hardware wallet BitBox2 in order to have a safe storage for my private keys and now I am disappointed because under Manage device > Show recovery words there is only one seed for ...
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What's the difference between the anti klepto protocol and anti exfil?
What is the difference between the anti-klepto protocol (also here) and Anti-Exfil? Is it the same thing just with different names or are there differences? It seems they are both addressing the nonce ...
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How secure are the private keys on a hardware wallet?
Specifically two questions are interesting to me:
Are private keys ever accessible?
When are they generated and how can we know/prove this?
In more detail:
Is my understanding correct that even ...
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Multisig with existing single sig + passphrase
If I take 2 brand new HW wallets (like a Coldcards), plus an existing hw single sig wallet that has a passphrase and finds already assigned to it (like a Trezor)and then create a new multisig 2 of 3 ...
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How to change device label in Electrum?
Say one has a multi-sig Electrum wallet created using Electrum and two Trezor devices… can one change Trezor labels to COLDCARD labels without connecting COLDCARD devices (referring to device labels, ...
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Is passphrase (the 25th word) using open source algorithms? Can I recover the passphrase on any hardware wallets?
Many hardware wallets provide the passphrase function that allows you to protect your assets even if your 24 seed phrases are compromised. But I worry that the different companies use different ...
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what is actually stored on a hardware wallet?
My understanding is that:
Your crypto is on the public ledger under a public key.
Your Hardware Wallet stores your private key (which is used to prove your ownership of the public key/wallet).
You ...
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Create a 2-3 multisig address without syncing entire blockchain
I have a hardware wallet, a seed, and a specific private key.
I want to create a 2-of-3 multisig using these 3 items. So the only option left is the option of creating a multisig using just private ...
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One seed phrase for multiple currencies on HW wallet
If I use a hardware wallet with multiple cryptocurrencies, then I guess it uses multiple addresses to store them, right?
Now I'd like to back up this wallet on a piece of paper in case it's destroyed. ...
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When using a hardware wallet, how do I know that the change address is one that I own?
When signing a transaction on my coldcard, I see a change address that is not listed (at least on the first 30 addresses) on my coldcard. I believe coldcard would only allow me to sign a transaction ...
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Are hardware wallet seeds cross compatible over all brands and even software wallets?
I had a discussion today and I'm really confused. What I though is happening with each hardware wallet is this:
Seed (BIP39) 1 --> HW Wallet (ledger) --> chip1 + seed = private key 1
Seed (...
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Same seed on multiple hardware wallets
Let's say I have two Ledger hardware wallets. Can I use the same seed phrase on both simultaneously and be able to work with my crypto on either whenever I want having access to the same accounts?
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"Do not buy hardware wallet from a 3rd party seller" security tip, does it apply if authorized in the official website?
"Do not buy hardware wallet from a 3rd party seller" It's a well-known security guideline for newbies. I wonder though, does it apply for 3rd party sellers that are listed on the official ...
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Does 12 word Mnemonic seed + passphrase wallet get recovered w/o the passphrase?
I recently bought an Ellipal Titan, I was playing around with it to get used to the wallet.
I created a wallet with 12 mnemonic + passphrase.
I erased the wallet.
I tried to recover the wallet with ...
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Is it possible to send BTC directly to a hardware wallet (such as Trezor) simply by plugging the hardware wallet to a USB port?
This question is about how standalone a hardware wallet (such as Trezor) is. Or in other words, what other components, if any, does it depend on.
So this is about what other components are needed for ...
user31456
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Can private keys be physically extracted from a Ledger hardware wallet?
The Ledger company says that their chips are super safe so that even if some electronic engineers get your Ledger wallet, they cannot get your private key. But is that true?
For example, if I stole ...
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Is it ok to use dices to generate seed for trezor on coldcard?
Coldcard's derive entropy function doe snot have dice method. The only way to generate a seed using dices on coldcard is on "import seed".
Is it ok if I use this feature and generate a new ...
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What is extended master key fingerprint on coldcard?
On coldcard on
Advanced -> View Identity, there's
extended master key fingerprint
I though this was the xpub from my seed, but even after I changed seeds, it remained the same.
What is it?
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How do many public keys correspond to one private key?
I have read online that hardware wallets can generate new public keys to facilitate transactions. Ie if someone has BTC on an exchange and they want to send that BTC in different installments to a ...
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Is this scheme for multisig audit of Trezor + Coldcard ok?
My plan is to make a multisig between coldcard and trezor. I want to audit and verify that I indeed own the 2 keys of these wallets, using a raspberry pi zero (no wifi/bluetooth by definition) on a ...
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Coinbase & Hardware wallet relationship
Aside from learning about all of bitcoin just for fun (mathematician with spare time), I currently own some bitcoin IOU's via Robinhood, but I would like to actually own my bitcoin (my keys, my coins! ...
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Is there a way to tell that our bitcoin is safe after we put it in a hardware wallet for cold storage after 3 or 5 years?
If I consolidated 1 bitcoin into an address using a hardware wallet, and put it in cold storage. Can I know after 3 to 5 years that the bitcoin is safe?
So far the research I have is: can I go to ...
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Is our hardware wallet safe if the PC or Mac has 3rd party apps?
For example, our PC or Mac might have 3rd party apps installed, such as Pixelmator, GIMP, or VLC player. They are usually considered to be safe apps.
However, is it true that when using a hardware ...
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How long can popular hardware wallets last in cold storage?
Consider the Ledger and Trezor hardware wallets: how long could they last in a typical bank safety deposit box?
If the answer needs specifics, assume the following:
Temp: 20C
Humidity: 50% RH
...
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If the "wallet seed keywords phrase" is all that's needed to restore a hardware Bitcoin wallet, isn't backing that up a nightmare security-wise?
I buy a Trezor. I put all my coins on it. It has me type out the "wallet seed", which is a series of English words in the right order, onto a paper. And maybe I even buy a metallic card ...
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What does bitcoin.org mean when they say about Coldcard Wallet "the final software was not built deterministically like Bitcoin Core"?
I am looking at hardware wallets to store my Bitcoins, and Coldcard Wallet Mk3 seems like a great option. However, at looking at info about it at bitcoin.org, it says that the software is not built ...
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Do hardware wallets store the wallet.dat redundantly inside? If not, are there such hardware wallets?
I'm baffled by how "cheap" the existing hardware wallets look and seem. They seem to have been made "at a budget", with no real high-end version available.
If I owned something ...
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Am I really understanding how the "Trezor Model T", and hardware wallets in general, work?
Getting increasingly paranoid about losing my coins, I've yet again (for probably the 20th time by now) went looking for hardware wallets. The only semi-reasonable one seems to be the two Trezors. All ...
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How do I make multisig transactions using hardware wallets truly trust minimized?
I am experimenting with multisig transactions using hardware wallets. Is there some general guidance on what I should and shouldn't do to make the process truly trust minimized?
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What is the difference between PSBT support in Coldcard and Trezor?
The 10x Security Bitcoin Guide says that the only two hardware wallets support BIP174 (partially signed Bitcoin transactions, or PSBT). However, this Reddit thread says that "You can use PSBT ...
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How does a hardware wallet interact with the bitcoin network?
I tried to understand the principle how the hardware wallet sends transactions to another Bitcoin address since it is not connected via full node to the blockchain.
I found this answer: How do ...
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Starting bitcoind for the express purpose of creating a wallet?
Referencing this solution:
My favorite method:
grab out a old/unused pc/mac
install a linux over usb (maybe Talis) (make sure your USB stick is clean!)
download a recent version of bitcoin-core (...
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What needs to be written down for a paper wallet?
I'm installing bitcoin-core with snap on Ubuntu for a dry-run at generating a paper wallet.
Perhaps naively, I thought to "write down" something like:
nicholas@mordor:~/bitcoin$
nicholas@...
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Are all 'metal wallets' functionally equivalent?
Within the context of wallets, is it correct that a metal bitcoin wallet needs to store both public and private keys?
I'm looking at some metal wallets and want to clarify that the're all basically ...