Questions tagged [wallets]

Wallets are applications on top of accounts, so called smart contracts, which manage your Ether. There are simple savings wallets or multisignature wallets.

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HD paths on MyEthereumWallet

I hae some coins on MyEthereumWallet, that I can see in block explorer, but can not access it. I think that the mnemoic and password is correct. My assumption is that I messed up something with the HD ...
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1answer
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EthereumJS returning wrong public key

I'm using https://iancoleman.io/bip39/#english to generate a random 12 word mneumonic with the following settings. Mneumonic language: English Coin: Ethereum Derivation Path: BIP44 It generated the ...
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474 views

Approve contract to withdraw funds from users's wallet

I want to achieve the following flow: A user clicks a button allowing my contract to spend funds on the user's behalf A user clicks a second button whereupon funds are transferred from the user's ...
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RE: Universal Wallet

I would like to create a multi currency wallet as a POC. I am currently able to make a wallet for Ethereum (Like balance, tx and all) but would like to create it for other as well (like Bitcoin). I ...
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1answer
59 views

interact with a smart contract without having a wallet

I have a smart contract that basically store a document and I integrated it with a user interface that let the user go to the website and search for that document .. very simple idea. I want to let ...
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1answer
31 views

how to let the user use Ethereum DApp Without having wallet

I have a question regarding Ethereum and DAPP .. I have a smart contract that basically store a document and I integrated it with a user interface that let the user go to the website and search for ...
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1answer
25 views

MITM attack in hosted wallets

i have a question: in the web wallets(hosted wallets)when user want to make a transaction and send the information to the wallet server , can a one change the information(man in the middle attack)?
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Does metamask uses web3?

I was curious if metamask uses web3 for communication with eth node ? I tried google for it; showed bunch of other results but didn't precisely answered my question. Indepth answer on how metamask ...
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1answer
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Why do no transactions and no balance show on a wallet I know has a transaction history?

I created an Ethereum wallet 4 years ago, and bought some ether. At the time it was purely an experiment and I knew very little about crypto, I just wanted to see how to do it. I then forgot about it ...
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26 views

Contract wallet allowance and fees

I just want to ask, does Contract Wallet need an approval/allowance? as far as i know, Contract Wallets are executed by Wallet owner (Owner account) and the gas fees are paid by this owner account. ...
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1answer
54 views

how to be notified about incoming transactions instantly?

I'm creating a platform which users are able to receive ETH on their own wallets (addresses). They will give the addresses to others, but the question is how can I be notified that new transactions ...
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How to trace transactions to get information about hot and cold wallets?

I am researching ways how to trace transactions to get data about hot and cold wallets of exchanges, gambling sites, cantors, mixers. What sources of data could I use? What algorithms and scripts ...
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API call to get a list of all transactions sent TO a specific address (not contract)?

I have used the Etherscan API call "http://api.etherscan.io/api?module=account&action=txlist&address=0xddbd2b932c763ba5b1b7ae3b362eac3e8d40121a&startblock=0&endblock=99999999&sort=...
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What is the privatekey to be used to sign web3.js transactions?

I created an account on metamask, and downloaded the json of my wallet. It's on rinkeby. The structure of the json is { "version":3," id":"...", "address":"....", "crypto": {...
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677 views

Reinstalled MetaMask, account lost?

I had 3 accounts under my MetaMask Chrome extension. One of them had some small deposit. I have reinstalled the extension and used seed phrase to get access again. However, I can see only one account (...
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How to create account using mnemonic words or private key in web3js and call contracts using that account

I have a simple React Project with web3@1.2.4 installed and I want to call a contract's method like this: await maincontract.methods.CurrentMethod("arguments").send({ from: accounts[0]/*my account ...
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2answers
136 views

Is there any difference between address that have Smart Contract and “normal” one? [duplicate]

Is there any difference between address that have smart contract on it, and "normal" address (address that You can create private and public key pair)? For more context, this is the problem I'm ...
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40 views

CLI wallet where I can pass in a Private Key and send out ETH and then delete this key?

Is there a CLI command where I can pass in an ethereum private key and send some coins to another address? I'm trying to build out a reoccurring payment system where a user can send 1 eth to another ...
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1answer
59 views

Different address make same signature for one message

Is it possible two different wallets (address) make the same signature for one message? I have one message: '...
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What is meant by a Ether Wallet?

Somebody please tell me what is a Ether Wallet? I got the following answer: A blockchain wallet is a digital wallet that allows users to manage bitcoin and ether. Is it like a account? Zulfi.
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Does an online crypto wallet actually store crypto currency?

I have done some code with web3 and smart contracts and I've realised that you don't have to store your currency anywhere, because it is already there; it can be read from anywhere. That made me ...
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1answer
100 views

Do I need ETH in my exchange account to send out ERC-20 tokens to an external wallet?

I'm new into ERC-20 tokens. Let's say I buy an ERC-20 token in an exchange with USD. When I want to transfer that token to my own external wallet (say Nano S), do I need some ETH in the exchange (...
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Opera wallet web3 problems

I am writing a Dapp. I'm not an expert. It works perfectly on Edge, Firefox, and Chrome (with MetaMask). But I get the following error on Opera when the cryptowallet is on but not synced: { "error":...
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49 views

Building a deterministic wallet without random seed phrase instead multiple static inputs

If I want to be able to create a private key given inputs x,y,z and these inputs are constant, if I add enough entropy as a salt would it be secure to create a key this way (in terms of brute force ...
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43 views

How often Geth/Parity access the archive chain files? Can I store remote?

I'm running a full archive node to receive and send funds (ETH & other tokens also). The size of the blockchain is very large, so I'm thinking about storing it remotely and mount as an sshfs ...
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90 views

Combine two addresses into one

I want Solidity code to define a function f that would map two Ethereum addresses A, B into a new address X = f(A,B) such that there is nearly zero probability that X is an already taken address (an ...
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1answer
38 views

What Ethereum wallet I need

I have lots of experience with bitcoind and it's RPC calls. I want similar Ethereum wallet that supports: RPC calls from PHP, Pyhton and similar languages. erc20 tokens. Must work on Linux VPS (I ...
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563 views

Common Gas Wallet for ERC20 Wallets?

We have a wallet structure where users send tokens to individual user wallet addresses generated for them, we then sweep all the funds in the user's wallets to a centralized pool. The individual ...
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29 views

How to allow mobile wallets to sign and access to my dapp

I'm building a dapp application on Ethereum using React & Web3js. As usual the dapp will get the injected provider from Window.web3 (MetaMask), perhaps. The problem that I'm facing now is how can ...
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1answer
32 views

MetaMask listed as “web wallet” on official Ethereum website

MetaMask is listed only in the "web wallets" section of the official Ethereum wallet guide. Obviously, MetaMask is written in Javascript and runs in a web browser. But this is also true of the ...
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1answer
105 views

How to setup clef signer with clef --stdio-ui

I have geth running on rinkeby network and successfully used clef as a signer using command. clef --keystore ~/.ethereum/rinkeby/keystore --chainid 4 --stdio-ui Also started geth with clef as ...
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Is there a non-Electron based 100% open source wallet for Linux

I have tried nearly all desktop wallets, they are either based on Electron which does not run great on a Raspberry Pi with X11 Forwarding or don't seem to be open source, some have at least some ...
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34 views

Is Ethereum suitable as a store of value?

Say you bought some ether when ethereum was at 1.0. Most of the time Ethereum requires you to update (via a hard fork) to the latest software. This means you'd need to update your wallet every time ...
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26 views

How can we create ethereum web wallets?

I am looking to create web wallets compatible with ethereum token standards, similar to this: https://wallet.callisto.network/ Can someone guide me to tutorials or guides as how to create this on my ...
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3answers
820 views

Alternatives to Metamask

What are existing alternatives to metamask with that works online inside existing browsers, that don't require installing a browser extension? What are some of the tradeoffs between them?
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1answer
180 views

Ethereum wallets that support “Custom RPC URL” like Metamask

I'm running a private blockchain and I've been using Metamask connected to my custom RPC URL with no issues.. I'm curious if there's any other Ethereum wallet that let's you add and connect to a ...
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1answer
132 views

Embedded Ethereum Wallet

Is there any embedded wallet library available for Ethereum I can use for the IoT devices (Raspberry Pi, Arduino etc)? I want something similar to MetaMask but, instead of holding the wallet addresses,...
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737 views

Ethereum wallet does not work with version over geth 1.8.23

Ethereum wallet does not work with version over geth 1.8.23 I have geth 1.9.1 installed, I am fully synchronized, but ethereum wallet requires you to download 1.8.23 and does not want to work with ...
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1answer
89 views

Get a list of tokens inside an ethereum wallet address

is there a way(mostly a api) to get all the tokens currently being held by a wallet address?(Their contract addresses)
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1k views

Using AWS CloudHSM to sign transactions

Does somebody knows how to properly use AWS CloudHSM to sign ethereum transactions (Keccak256)?
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1answer
30 views

Find keyfile of an account

I have several accounts in my Geth wallet. I need to locate the keystore file of a given account but there doesn't seem to be any connection between the keystore file names and the accounts. How do I ...
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1answer
42 views

How risky is it to ask a dev to deploy smartcontract for you?

I’m currently in the process of hiring a dev to develop my token and my smartcontract and deploy it. Will he need my ETH private key to do it ? Can he change the destination of the funds once the ...
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1answer
112 views

Get ETH and Token Balances of Wallet address

How do I get a simple and fast balance of ETH and all Token owned/stored within a wallet address? I have seen similar question and the closer answer was in this demo: http://wbobeirne.com/eth-...
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1answer
73 views

Ethereum fast sync and wallet balance?

I'm planning to run a Ethereum server for getting wallet balances at a specific time, which type of node should i run, fast sync will work ? or should i go for archive node ?
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2answers
89 views

Is there an ethereum android wallet where I don't have to manually add in tokens I have and just auto detects it?

Using coinomi or even metamask on chrome is quite annoying as I need to manually add in tokens I have in my account and it doesn't auto show up. Is there an android or desktop ethereum wallet that ...
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1answer
28 views

Is possible for a contract to manage and hold different address and its balance for different erc20 tokens?

Imagine an exchange contract to store and handle different accounts for different buyers and sellers, it is possible for a contract to manage and hold different address and its balance for different ...
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1answer
572 views

How to export mnemonics for a specific account in MetaMask

How can I get the mnemonics from a specific account in Metamask? I found the reveal seed words in the settings-dialog, but this seems to be something global. Instead of this I want to export the 12 ...
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1answer
42 views

Importing Ethereum Account Private Key and Using on Different Servers

Let's suppose i have a wallet on one remote server, R-1. Is it possible to get the private key of that wallet/account and use it on different remote server R-2? I know, i can copy/paste files under ...
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1answer
484 views

How to recover/find metamask wallet file

So I had foolishly kept my metamask passphrase only on StickyNotes. This meant when my computer crashed, I had to reinstall all my programs, but all my files remained. For some reason my stickynotes ...
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218 views

How to use bip39 module in angular?

I am trying to create an ethereum wallet app using Ionic. I have tried to import bip39 node module directly in the angular project but it gives me error. Please help import { Injectable } from '@...

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