Questions tagged [cold-storage]

Secure method of storing Monero such that the private key remains "cold" or never connected to a "hot" wallet or Internet connected device. Cold-storage could include the use of a paper wallet or a hardware wallet to store the private keys

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18
votes
2answers
4k views

How do I use cold transaction signing?

Cold transaction signing was recently merged into master. How would one go about using it? For those who don't know, this feature allows you to: Create and export an unsigned transaction on an ...
11
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2answers
2k views

Constructing a Stealth Monero Address?

Is it possible from Section 4. Address Serialization cns007.txt and Section 3. Variable-Length Encoding of Integers cns003.txt to compute a Monero Stealth Address from the following? 1) Private ...
13
votes
1answer
14k views

How to use the view key to see amount sent to cold storage?

I know that you can't view both incoming and outgoing transactions of a cold wallet, but I'm still confused as to how I can see if my previous transactions I made have actually reached my cold storage ...
9
votes
1answer
2k views

What data do the wallet files contain?

I see 3 files with the name of my wallet: wallet-name, wallet-name.keys, wallet-name.address.txt What is stored inside them? Does the wallet store the public and private keys and nothing else? Or ...
12
votes
3answers
5k views

Do I need to sync the entire blockchain before I can send a transaction?

I have a cold storage wallet that I have only used to receive payments. After recovering my wallet with my mnemonic seed, do I need to synchronize the entire blockchain before I can send a ...
8
votes
1answer
2k views

Offline transaction signing. What are the details?

This offline transaction signing feature was PR'ed to master in early October. I generally know how this is supposed to work, as many others no doubt do as well. But what are the details? On the ...
15
votes
4answers
23k views

How can I check the balance of a Monero paper wallet?

If I securely generate a paper wallet address and mnemonic seed, for example using www.moneroaddress.org, and I send a bunch of funds to this paper wallet, how can I check the balance to ensure ...
12
votes
1answer
5k views

How to create a cold storage & watch-only wallet

Using monero-wallet-cli, I want to safely create a cold storage wallet and make a watch-only counterpart which I later want to use on my Windows PC to monitor the balance. How can I do this?
15
votes
2answers
8k views

What is the safest method to create a Monero wallet for cold storage?

If I want to create a Monero wallet in the most secure manner possible, what are the best practices in doing so? Are there any written user guides or video demonstrations of this process?
6
votes
1answer
609 views

Shamir's Secret Sharing for cold storage of a Monero wallet

After creating a mnemonic seed for offline cold storage with the guide described here how can I safely encrypt it in pieces with the help of Shamir's Secret Sharing? What are some other viable ...
19
votes
1answer
984 views

Can I fake a balance by giving the view key to an auditor but omitting some transactions and key images?

The viewkey can be used to see the outputs sent to my address, but not the outputs I generate when sending monero. If I need to know the balance I also need the private spendkey. It is suggested that ...
4
votes
1answer
778 views

Importing a paper wallet to GUI

I have a paper wallet that I made from moneroaddress and wanted to import it to the GUI. Can I import it by starting up the GUI and clicking, "restore wallet from 25 word mnemonic seed," and entering ...
5
votes
2answers
1k views

Can the import\export key images command can be used to check the balance of a paperwallet?

The import/export key images command can be used to check the balance of a view only wallet. But is there a way to use it to check the balance of an already set up Paperwallet? Is it possible to get ...
11
votes
1answer
824 views

What are the best practices to move coins out of cold storage?

There are tutorials on how to set a paperwallet but I found nothing on the best practices to recover funds out of a paperwallet. I imagine it is a critical step too, what is the best way to do? What ...
7
votes
1answer
159 views

Can a transaction signed by a cold wallet be broadcast sometime far in the future?

Could someone sign a transaction, encrypt it with a (2,3) Shamir's Secret Sharing scheme with one key to signer, one to trustee and one to beneficiary? Then after death sometime years from now could ...
4
votes
1answer
327 views

Cold transaction signing with GUI

Is it possible to safely complete a cold transaction signing process with the official GUI instead of the CLI process described here?
4
votes
2answers
355 views

Verifying Tx to cold wallet

Having some trouble. I have made a few transactions to hot wallets just fine. Balances reflect transactions. Also sent tx to cold storage wallet addresses. Using https://xmrchain.net/ I can see ...
4
votes
3answers
2k views

How to create a view-only wallet for the GUI?

Say I have a cold storage wallet, is there any way I can make a view only wallet with GUI?
4
votes
1answer
299 views

converting view-only wallet to spend wallet

I created an offline paper wallet, then use the view key to create a view-only wallet with "monero-wallet-cli --generate-from-view-key" command. My test send from an exchange to this wallet works, ...
3
votes
1answer
2k views

How to check balance of Cold Storage Monero Wallet, easily, when privacy of balance is not an issue?

I am aware similar questions have been asked - but I could not find the exact answer I seek. In the situation of: The user has a cold storage wallet, made on an airgapped computer, and has written ...
1
vote
0answers
77 views

Error using “import_outputs”: failed to authenticate ciphertext

I'm trying to set up offline signing using CLI. My setup is as follows: I have a fully synced (via remote node) view only wallet on Mac OS X and I have a cold wallet set up on Raspberry Pi (OS: Ubuntu ...