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Questions tagged [hardware-wallet]

A hardware wallet stores one's private keys in a secure hardware device.

21
votes
2answers
2k views

Hardware Bitcoins (Smartcards, RFID etc.)

is it possible to create a real hardware Bitcoin, e.g. a specified (and verifiable) value which is stored on a smart card or RFID which can be given directly to other people?
13
votes
1answer
1k views

Is it safe to use a second-hand Trezor (like from ebay)?

I just got a good price from eBay on a supposedly never-used Trezor hardware wallet. I have no specific reason to think this would be dangerous to use, but I'm being cautious and ask here first: Are ...
9
votes
2answers
1k views

How do I use the new GPG signing feature with my Trezor?

I read here that with the new firmware, a trezor can be used to generate GPG signatures. How does that work? Is there a tutorial? I didn't see anything on the satoshi labs website.
8
votes
1answer
85 views

Projections for reductions in price of hardware wallets

The components of hardware wallets are not very expensive (at least when purchased as scale). I understand the need to recover R&D costs and that higher sales volume will increase negotiating ...
6
votes
5answers
3k views

How to make totally secure Bitcoin transactions?

So, I'm wondering if my system of protecting my bitcoin is totally secure. If I have an old laptop, and I boot into tails linux from a flash drive, and download electrum on there, and only ever ...
6
votes
3answers
1k views

If I lose a Trezor then how does the replacement get access to the same wallet?

I am pretty confused. What I understand is that when I buy a Trezor then it gives me some words that I need to copy down. When the Trezor starts up does it then automatically create some Bitcoin ...
6
votes
1answer
143 views

Is it safer to use one type of hardware wallet of several?

I know that there are several brands of hardware wallets with open source firmware that are considered safe. Is it better to just one that is safe and you are most familiar with? Or would hedging by ...
5
votes
2answers
943 views

What happens when a Trezor is lost?

Trezor is one of the leading implementation of a hardware wallet. Its first generation won't support multisig ... because the Bitcoin network itself doesn't have strong multisig support. What happens ...
5
votes
1answer
428 views

Hardware wallet teardowns and side channel attacks

Most of the popular hardware wallets appear to be based on well established open source cryptography. Which hardware wallets have been submitted to extensive teardowns and side channel attack ...
5
votes
2answers
8k views

How to know balance in Ledger Nano S?

Ledger wallets have a single static address where to send BTC to, but when looking at the details of the transactions, it is always recorded as different receiving addresses. Looking up the static ...
4
votes
1answer
11k views

How can I verify the authenticity of a ledger Nano s hardware wallet?

If I buy a Ledger Nano s hardware wallet online from Taobao in China is there any way I can verify it's authenticity? Is there a way to test the firmware etc to make sure it hasn't been tampered with?
4
votes
1answer
4k views

Testing Ledger Nano S wallet seed

Can I test that I've correctly recorded the seed by "restoring" my wallet in a desktop wallet like Electrum by using the seed given to me by my Nano S? It would mirror my hardware wallet, correct? ...
3
votes
1answer
676 views

What happens when a hardware wallet, like Trezor, suffers a hardware damage?

What happens when my hardware wallet e.g. http://trezor.io stops working? It would be great if someone could outline the procedure. And if there are multiple ways I would like to compare by ...
3
votes
2answers
925 views

BIP39 hardware wallets

Can I migrate from a trezor to a ledger nano s just by using my BIP 39 word list? It is ok to use a duplicate hardware wallet? I assume it is, but would like to hear your opinion.
3
votes
1answer
647 views

How to get Ledger Nano S to work in an Ubuntu VirtualBox?

I installed the ledger manager on Ubuntu VirtualBox, but I can't see any of my USB devices. My host OS is Windows 10. How do I get this to work?
3
votes
2answers
2k views

Bought a used ledger nano s from Amazon / Ebay. How do you factory reset the Ledger Nano S?

I just bought a used ledger nano s from amazon and ebay. What is the best method of wiping this device and factory reset it? What are some other precautions before using this used device?
3
votes
1answer
363 views

How do Bitcoin Altcoin Hardware wallets work?

From my understanding the hardware wallet contains your private key inside the device. When using a hardware wallet, the gui wallet on the computer or phone creates the transactions, but does not ...
3
votes
2answers
418 views

How can one reinitialize the HW.1?

I've got a HW.1 a while back at a conference without any additional information. I had played around with it a little bit then, but didn't intend to use it as a wallet immediately. Now, I've been ...
3
votes
2answers
277 views

Does Bitcoin have a physical equivalent like US dollars do?

I can send US dollars electronically and they get recorded electronically at my bank. However I can also get a piece of paper to represent different amounts. For example, my bank will give me a '...
3
votes
1answer
138 views

Is there a hardware wallet project that plans to add multisig capabilities?

What I want: A hardware wallet that I don't need to trust. That wallet will hold one out of three keys in a 2-of-3 multisig scheme. The other two parties will be a paper wallet I create, and a ...
2
votes
5answers
605 views

Encrypting wallet manually instead of using hardware wallet

i am new to this community and like to know why one should prefer a hardware wallet instead of using encryption algorithm like AES-256 along with PKDF2 to secure crypto wallets ? i currently hold btc ...
2
votes
1answer
79 views

Hardware wallet without a hardware wallet

I want to do some research in order to purchase a hardware wallet. Until I have decided what to do, I would like to transfer my bitcoin balance out of the exchange that I am currently using. I want to ...
2
votes
2answers
251 views

Hardware wallet - Claiming forked currencies

I'm considering purchasing a hardware wallet for my cryptos (ledger or trezor) and was wondering how one might claim a forked crypto if these devices don't provide the private keys or add support for ...
2
votes
2answers
298 views

Hard drive failure

I want to store my bitcoins into a server into a datacenter and access it via SSH/VNC. The problem here is: If the hard drive gets destroyed/fails/gets problems, how do I recover my bitcoins? A ...
2
votes
1answer
260 views

Can secp256k1 be implemented efficiently on a 8-bit processor and very limited RAM?

We are trying to build a much simpler version of Trezor. We do have an finished PCB design from a previous project and would like to know whether this design can be modified, without changing the ...
2
votes
0answers
219 views

Bitcoin on a cloud-based hardware security module (HSM) by AWS

As far as I know AWS does not support the secp256k1 on their cloud-based hardware security module (HSM) called CloudHSM. Gemini is using CloudHSM for their hot wallet. How is it possible to ...
2
votes
2answers
1k views

Is there a cold storage option for altcoins?

Is it possible to create a paper wallet for altcoins offline and send your altcoins there? I can only buy altcoins from online exchanges like bitrexx but I feel it's really risky to keep large ...
2
votes
2answers
726 views

Can I send bitcoin from paper wallet directly to hardware wallet?

Can I send bitcoin from my paper wallet to my hardware Ledger wallet without using blockchain wallet?
2
votes
1answer
1k views

How can I accelerate confirmations in ledger nano s?

I am using Ledger Nano S hardware wallet to store my bitcoins. Last week, for an experiment, I decided to send bitcoins to hitbtc currency exchange with zero btc fees. I was wondering how many hours ...
1
vote
2answers
462 views

Where does Trezor get UTXOs from?

Since UTXOs are required to spend funds, where does Trezor get the unspent outputs from? Storing them in the hardware requires you to plug it in from time to time to update the UTXO set. You could ...
1
vote
1answer
1k views

How are Ledger Nano S private keys protected?

I've read quite some material but it boils down that there "is a chip" on Ledger Nano S and the private key never leaves it. But what I would like to know is the following. Is it encrypted? If so, ...
1
vote
1answer
153 views

Can I use a single Hardware Ledger for multiple coins

I am about to buy a hardware ledger to store my coins but I was wondering if I would be needing one ledger per coin I own or if one can hold all or some.
1
vote
1answer
57 views

Transferring many bitcoins without restoring a seed

I was thinking about how would someone transferring a handful of bitcoins say 10 or so to a new hardware wallet. Say you have 10 coins and want to transfer those coins to a different hardware wallet ...
1
vote
3answers
279 views

Are there any hardware privkey/pubkey generators out there?

I don't mean hardware wallet like Trezor but simply a device that is non-programmable, and not network connectable but will generate key pairs (+ the associated address would be handy but that could ...
1
vote
1answer
26 views

Review sites for the hardware wallets? [closed]

As I understand it there are four (4) hardware wallets produced currently (2018). Which businesses, web sites, or academic papers in the field review and compare the security of these devices? Is ...
1
vote
1answer
56 views

How does my hardware wallet know what my “account” balance is?

There must be a request to wallet provider's server with full node where they will check it. But what is sent?
1
vote
1answer
35 views

General-Purpose Hardware Wallet

Fundamentally, crypto-currency hardware wallets are just devices that securely generate public/private key pairs, and sign input data when approved using a password and physical approval mechanism, ...
1
vote
1answer
1k views

Sending Bitcoin between paper wallet and hardware wallet offline

Good morning, I'm just beginning this journey into crypto currencies. Right now, I've got my Bitcoin in a wallet at Coinbase. I'd like to keep my Bitcoin in a paper wallet. I think from Coinbase to ...
1
vote
1answer
244 views

How to get a VanityGenerated public address for a hardware wallet? (Ledger Nano S)

I recently bought a Nano Ledger S and have not opened or set it up yet. I read that you can use a VanityGen to create a Vanity public address. How would I do this for my Nano Ledger, if I want to make ...
1
vote
1answer
445 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
1answer
264 views

Any plans for Bitcoin Core app to integrate Hardware Wallet support?

So I could use the full node and wallet easily integrated with a HW wallet and avoid security exploits? Recently had a case of someone that had all his wallet stolen probably because of a keylogger - ...
1
vote
1answer
319 views

Does Electrum support Ledger Nano?

When you create a new wallet, there are 4 options, one being 'hardware wallet'. However, there is no mention of hardware wallets in the docs! http://docs.electrum.org/en/latest/search.html?q=hardware&...
1
vote
1answer
136 views

What cryptography hardware and/or software does a bitcoin exchange need to employ?

We have an operating equities exchange. To exchange bitcoin or other crypto-currencies, what cryptographic hardware or software would we have to use?
1
vote
0answers
484 views

Recovering BCH sent to BTC Ledger Nano S Wallet

I've looked at existing relevant threads, but still I didn't got the right solution for my situation, so raising this request. This case is perhaps somewhat different because it relates specifically ...
1
vote
0answers
55 views

Cold storage, transferable to hardware wallet

As far as I understand, hardware wallets generate a deterministic key space using standard algorithms: starting with a (random) passphrase (and more security tokens?), they are able to rebuild the ...
1
vote
1answer
140 views

How to develop and then sell my own Bitcoin Hardware Wallet? [closed]

Okay so basically I have a good idea for a bitcoin hardware wallet, i'm just looking for information on how to go about creating it? Do I need to create my own programs/programming for literally ...
1
vote
0answers
50 views

What is deterministic validation for hardware wallets?

On bitcoin.com, they mention that the Ledger Nano hardware wallet "while not open-source, .. can be deterministically validated." https://www.bitcoin.com/choose-your-wallet/ledgernano What does this ...
1
vote
1answer
63 views

How do hardware wallets integrate with software clients/nodes?

It isn't clear to me how hardware wallets interact with software clients. Is there a standard defined for this? Is it similar to signing on an offline computer and then transmitting a signed message ...
1
vote
0answers
204 views

Privacy risks with a hardware wallet

I'm trying to understand the privacy risks with a hardware wallet like a Trezor, Ledger, or similar. I understand the common workflow with these wallets is that you use an SPV bitcoin client which ...
1
vote
4answers
1k views

Trezor Custom Mnemonic

How do I go about using words I pick in a trezor seed? I only want words that I select and in an order I select. I'm not worried about this being a less secure way to generate a seed. I will be doing ...