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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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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27 views
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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1answer
41 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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1answer
25 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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0answers
39 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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15 views
How can link metamask wallet to create Android and web wallet for ERC20 token
I studied Solidity and Web3.js .I still need to know how can use metamask wallet that use in chrome extension to create as a mobile wallet and web wallet for client side.
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1answer
34 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 ...
5
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2answers
158 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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0answers
19 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
24 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
28 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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18 views
What Android App has block explorer functionality for Ethereum testnet?
I need to interact with my web app that has blockchain functionality and it creates wallets on paper (pls dont ask why). It's using ropsten testnet. Is there an Android app that I can easily scan the ...
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21 views
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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1answer
30 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 ...
0
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1answer
19 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
116 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
58 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 ...
4
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1answer
91 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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101 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
17 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)
2
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1answer
264 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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20 views
How I can use blockchain in my current Mobile wallet application?
I want to apply the blockchain concept for my Fiat currency wallet.
I have android app and use the nodejs in backend(API). I want to apply the blockchain in payment module to secure the payments.
...
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1answer
22 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
33 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
44 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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25 views
Are there any examples of ETH addresses that periodically send or receive funds at regular intervals?
I'm looking for any known ETH addresses that send or receive money at regular intervals. For example, once per day, an amount from a hot wallet might be sent to a cold wallet. Are there any widely ...
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1answer
57 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
45 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 ...
0
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1answer
15 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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0answers
19 views
Wallet Library Contract code for sending Ether
I got the following code at:
Securify: Practical Security Analysis of Smart Contracts
contract Wallet {
// fixed address of the wallet library
address constant walletLibrary = ...;
// ...
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1answer
54 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 ...
0
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1answer
24 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
108 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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1answer
97 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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1answer
39 views
Ethereum address not find
Any one tell me how to know about which website generates this ETH address:
0x6fdd1c34b75b8638d3806adecbcbbc61ed4ed3b3
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1answer
35 views
How do i create account remotely?
I have two servers, one for eth-node, one for web api and user db.
I want to send request to create account from web server to eth server, but i see it can be created by running command like geth ...
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1answer
48 views
Asymmetric encryption with master Key
Is there any way i can derive private and public keypairs from a Master Key? The Master Key should be able to decrypt every encryption made with the generated Keypairs.
to explain a bit further i ...
0
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1answer
80 views
Create custom mobile wallet for my two ERC20 Tokens
I have two ERC20 tokens that I created on Ethereum.
I would like to know if it is possible for me to create a mobile application that will allow my users to check their balance (for tokens) and ...
1
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1answer
18 views
How does a wallet integrate dex protocols?
How can a standard wallet with no exchange feature integrate dex protocols that allow users to swap ETH and ERC20 tokens within the app?
I know there are some dex protocols out there but which ...
3
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1answer
162 views
Generate Ethereum address with private key
How can I generate ethereum account address and private key that works on ethereum main network using web3 in nodejs?
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1answer
78 views
How to integrate Dapper Wallet smart contracts with web app?
Dapper Labs who are the creators of Cryptokitties recently released their own wallet which is run by smartcontracts. They have open sourced the code:
https://github.com/dapperlabs/dapper-contracts
I ...
0
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1answer
30 views
How to differentiate a smart contract from a common wallet?
Having an Ethereum address, I need to check whether it is a wallet or a token (ERC-20 contract).
How to check? (I need to implement it with Web3js.)
Ideally, it should also reject contracts which ...
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0answers
26 views
How to access my wallet with a mnemonic phrase in mycrypto.com desktop app?
So here is the case:
I downloaded mycrypto.com desktop app and created a mnemonic phrase there. After typing in the phrase it allows to choose a wallet from many different wallet numbers (addresses ...
0
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1answer
200 views
Ropsten Test Network
I have created a test token and deployed it on the ropsten test network. I have the full balance in my ether wallet. My question is how can I transfer this token to other wallets? How can I configure ...
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2answers
39 views
Load accounts to truffle
I'm using truffle v5.0.14 to handle my contracts.
All was well while developing with ganache, but when I wanted to deploy to the real network (a private one) I have problems with the account.
The ...
0
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1answer
78 views
Mobile wallets for test eth?
Can anyone suggest mobile wallets (both IOS and Andriod) that supports testnet Eth? Jaxx used to (or at least the IOS version used to), but doesn't look as though it does now.
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Could we know if an address contains a specific token via Etherscan API?
I tried this, http://api.etherscan.io/api?module=account&action=txlistinternal&address=0x2c1ba59d6f58433fb1eaee7d20b26ed83bda51a3&startblock=0&endblock=2702578&sort=asc&apikey=...
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1answer
35 views
How to choose contract address and wallet address
When you start an ICO, to receive a fund from people for your ICO, how do you choose the contract address and your wallet address to receive ETH collected for your ICO?
Thank you.
And excuse me for my ...
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0answers
11 views
Account & Block Polling not happening properly for the DApp in Trust Wallet Browser
my DApp works fine in desktop/laptop using metamask which polls the accounts and blocks (1500ms and 3000ms respectively), as set in the drizzle options. But the same DApp when I open in trust wallet ...
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0answers
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Why a buffer is required in the process of creating keys from the seed
This hdkey library is creating a Buffer in the process of creating keys as an example.
var HDKey = require('hdkey')
var seed = '...
