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Questions tagged [hardware-wallet]

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

2
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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?
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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
votes
1answer
251 views

Lost ETH due to faulty QR code on Ledger Nano S

I was transferring ETH from my Coinbase app to my Ledger Nano S. I used the QR code generated by the Ledger Ethereum Chrome app and it scanned fine. The funds, however, never reached my account. When ...
2
votes
0answers
222 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 ...
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
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
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 ...
0
votes
0answers
422 views

Unable to send raw transaction: mandatory-script-verify-flag-failed

When I send a raw transaction I get an error: 16: mandatory-script-verify-flag-failed (Signature must be zero for failed CHECK(MULTI)SIG operation) Raw transaction that I send: ...
0
votes
0answers
116 views

What is the easiest way (user experience wise) to get xpub?

I'v got monitoring app going for my hardware wallet and am planning to release it to public. Biggest pain point right now is asking users to enter their xpub key. It can be done, but there is no ...
0
votes
0answers
1k views

Unconfirmed, and now dropped transaction, from Blockchain

Forgive me for my ignorance, but here's my situation. Sent transaction from Nano S to GDAX address with zero fee Transaction was unconfirmed for 3+ days Transaction is now 'not found' and 0 BTC ...
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0answers
63 views

Open Source Hardware For Air Gapped Computer?

I'm looking for vetted open source computer hardware that can run Armory air gapped. Anyone know of such vetted hardware sources?