Cryptocurrency wallet

Blockchain Asset Walletone hot and one coldstoragewalletweb wallets
A cryptocurrency wallet stores the public and private keys which can be used to receive or spend a cryptocurrency.wikipedia
62 Related Articles

Bitcoin

bitcoinsbitcoin walletBitcoin blockchain
, there are over thirteen hundred cryptocurrencies; the first and best known is bitcoin.
Research produced by the University of Cambridge estimates that in 2017, there were 2.9 to 5.8 million unique users using a cryptocurrency wallet, most of them using bitcoin.

Cryptocurrency

cryptocurrenciescrypto-currencyaltcoin
A cryptocurrency wallet stores the public and private keys which can be used to receive or spend a cryptocurrency.
A cryptocurrency wallet stores the public and private "keys" or "addresses" which can be used to receive or spend the cryptocurrency.

Coinbase

Brian Armstrong
For example, with Coinbase, it is possible to install a wallet on a phone and to also have access to the same wallet through their website.
They broker exchanges of Bitcoin, Bitcoin Cash, Ethereum, Ethereum Classic, and Litecoin with fiat currencies in approximately 32 countries, and bitcoin transactions and storage in 190 countries worldwide.

Cryptocurrency exchange

bitcoin exchangeexchangedigital currency exchange
* Cryptocurrency exchanges link the user's wallet to their centrally managed wallet(s).
The exchanges can send cryptocurrency to a user's personal cryptocurrency wallet.

Cryptocurrency and security

hackedhacking of exchangessecurity problems
Cryptocurrency and security
There are various types of cryptocurrency wallets available, with different layers of security, including devices, software for different operating systems or browsers, and offline wallets.

Multisignature

multi-signaturemultisignature accountsmultisignatures
With a multisignature (multisig) wallet multiple users have to sign (with their private key) for a transaction out of that wallet (public key address).
The first multisignature cryptocurrency wallet was launched in August 2013 by BitGo.

Ledger

ledgersledger bookaccount book
In case of bitcoin and cryptocurrencies derived from it, the cryptocurrency is decentrally stored and maintained in a publicly available ledger called the blockchain. For example: When trading bitcoins between users on the Kraken exchange, the trades are written in their private ledger (off-chain transaction).

Blockchain

Blockchainsblockchain technologyblock
In case of bitcoin and cryptocurrencies derived from it, the cryptocurrency is decentrally stored and maintained in a publicly available ledger called the blockchain.

Digital signature

digital signaturesdigitally signeddigitally sign
With the private key, it is possible to digitally sign a transaction and write it in the public ledger, effectively spending the associated cryptocurrency.

Bank

bankerbankingbanking system
Just like with a bank, the user needs to trust the provider to keep the cryptocurrency safe.

Mt. Gox

lost by Mt. GoxMtGox
Trust was misplaced in the case of the Mt. Gox exchange, which 'lost' most of their clients' bitcoins.

Vulnerability (computing)

vulnerabilitiesvulnerabilitysecurity vulnerabilities
A wallet can also have known or unknown vulnerabilities.

Supply chain attack

supply chain compromise
A supply chain attack or side-channel attack are ways of a vulnerability introduction.

Side-channel attack

side channel attackside-channel attacksside channel
A supply chain attack or side-channel attack are ways of a vulnerability introduction.

Air gap (networking)

air gapair gapsair gapped
In extreme cases even a computer which is not connected to any network can be hacked.

Backup

data backupback upbacked up
A backup of a wallet can come in different forms like:

Structural robustness

robustblast protectionrobustness
Some people 'write' their mnemonic sentence or private key on metal, because it is robust.

Computer file

filefilescomputer files
A (encrypted) file like wallet.dat or wallet.bin which contains all the private keys.

Mnemonic

mnemonicsmnemonic devicememory system
A mnemonic sentence from which the root key can be generated, from which all the private keys can be recreated. Preferably these words could be remembered or written down and stored on other physical locations.

Public-key cryptography

public keypublic key cryptographyprivate key
A cryptocurrency wallet stores the public and private keys which can be used to receive or spend a cryptocurrency.

Kraken (company)

KrakenKraken cryptocurrency exchangeKraken exchange
For example: When trading bitcoins between users on the Kraken exchange, the trades are written in their private ledger (off-chain transaction).

Google Authenticator

Google Accounts Authentication and Authorization
When using a web wallet the private keys are managed by a trusted third party. Some web-based wallet providers use two-factor (like Google Authenticator) for extra security. In that case a keylogger is not enough for a hacker to steal the credentials and get access to the wallet.

Hacker

hackinghackershack
When using a web wallet the private keys are managed by a trusted third party. Some web-based wallet providers use two-factor (like Google Authenticator) for extra security. In that case a keylogger is not enough for a hacker to steal the credentials and get access to the wallet.

Data erasure

disk wipingerasewipe
They are born (created), live (transaction signing) and die (deleted) inside the hardware wallet.