Bitcoin Forum

If I want to generate for example 10 Ethereum addresses and I want to use Myetherwallet , I have to create 10 different keystore/.json  files and then use these files to access each address separately? Because that seems insanely annoying, considering that in principle it's advice against re-using the same address, I would have a bunch of these files to store, each with their own password...

Can I just get a file that can work as a seed that can spawn a bunch of different addresses? for example, you can use electrum, and save a file that you can load in electrum and have access to as many addresses as you want, not only 1 address per file. Is there any wallet that does this?

No mew does not have this kind of functionalities, you will need to generate 10 different keystore

Let me ask you about that! if Ethereum wallet of yours will get hacked and having only one file or private key. what will you do then?
everything with ethereum is kinda good now and more secure. Never public your main wallet address and put all your tokens there.
remember that just your eth address can see all your belongings in crypto.

And what will happen if I publish address wallet?
With it, you can not steal tokens.

one of the basics of cryptocurrencies is based on key pairs.
you have a secret key known as private key which you never share. and you have a public key which you can give to others.

public key is derived from the private key in a one directional operation which means you can simply find the public key from private key but the reverse (private key from public key) is practically impossible.

in simple terms no if you publish your address nobody can steal your tokens.

I found this site some time ago.
http://ebloc.cmpe.boun.edu.tr:3002
It generates bulk ethereum wallets.
As far as I checked it briefly, looks legit to me.
Please do a study yourself on the subject.
Maybe someone here has already used it? I haven't, I just remember stumbling upon it and bookmaking.

I think metamask can do that for you, it is an extension of browser that lets you store or generate eth addresses along with their private keys and seed phrase, but imported private keys ones can't restore by phrase seeds so you need to generate all 10 private keys on the extension itself, I'm using it right now and it is safe and pretty convenient mostly if your going to trade on exchanges as most of them support metamask to integrate with trading some of them are IDEX and ED.

It is not possible to generate 10 ETH address in one file. If you do not want to handle 10 different files, you may want to consider getting a hardware wallet. You can use hardware wallet with MEW and there are more than 10 ETH address in hardware wallet.

Sorry mate but MyEtherWallet doesn't provide the solution that you are asking for. Thus generation of 10 separate files is the only chose here.   

I think you should create accounts with Metamask. That will be better managed. But seriously why do you need 10 different ETH address. You can use just 1 for everything. Remember that managing 10 addresses is not at all simple. And if you are looking to just receive ETH, then you can use Coinbase also.

Why would you want to receive eth on an exchange when you could be holding it safely offline or wherever you want yourself.

Not sure how well this principle goes together with Ethereum account model. Unlike Bitcoin, Ethereum is a big state machine: it recognizes a concept of accounts and tracks the state (e.g. balance) of each and every account. In Bitcoin you have unspent transaction outputs associated with particular address and each such output has to be spent in its entirety. In Ethereum, at least as far as user control accounts goes, one address = one account and transactions either increase or decrease balance of that account. In short, you don't track inputs and outputs, you track balances. And that's a completely different world.

for security purpose mew dont have this option .
as other users advised in metamask , you can create multiple address and i find mm is more safer than mew .
but i don't think you should need so many addresses .

It would be much more safe and convenient to use a hardware wallet. It allows to have a lot of ETH addresses which you would be able to control through MEW. If you have at least $500 in eth/tokens it definitely worths to buy Ledger/Trezor!

Why do you think so? It is good because by doing this you diversify your portfolio and reduce risk of losing lots of coins, if you have all in one wallet, you can lose all of your coins!  :)

MEW Johnson like the UTC file or something, with its own private key, it makes the account unique and different from each other, you can not use one's key to open another door.

MyEtherWallet is just an access point to the Ethereum blockchain... so instead of doing it through MEW do it through MetaMask.  Download and install the browser plugin and create 10-accounts.  At least there it'd be a bit easier to manage since it's all consolidated into one interface.

Seconding this! The Ledger ethereum wallet (which you can interface with using MEW) generates many addresses if you're interested in keeping different revenue/whatever streams seperate. Plus, safest option there is really.

No , I dont think is possible to have different addresses with a single access point like private key. Each address ought to have its own key or keystore/.json before it can be functional.

If you are looking for a system with one password - multiple ethereum keys, just make up a mnemonic.
MEW offers this option when you login.
Go here for example:
https://coinomi.com/recovery-phrase-tool.html
select generate 12 words - select currency ETH
Input the mnemonic into MEW - can also password protect it!
If you notice, MEW let's you chose from an array of ethereum adresses.
Just make sure you print out the mnemonic and put it in a safe place.

True, I would never store big amounts of money in Electrum for instance, as I don't like the idea of my seed to somehow get hacked, giving free access to all my existing and future-derived-from-the-seed addresses. However, I would be able to deal with this risk for small amount of ETH tokens. It's mostly to receive payments for the signature campaign im in. Lately, it seems they want to give payments in both BTC and the token they are promoting, so a lot of people are researching how to get an ETH address for the first time because of that.

I have decided to go for the keystore file for now, I will research the mnemonic option later, thanks.

MEW cant work like that, one keystore for one address only, you should know its also for your asset keep safe, can you imagine what happen if just one key can open multiple address ?
how if when your wallet have been compromised ?

Mew use this because safety is more important than faster access

It is for your own security if you have only one private keys from multiple wallets you could lose anything you have,but if you have 10wallets and 10 private keys and if one of your keys are stolen there will 9 more keys that the hacker should get before you lose everything,its like putting all the eggs in one basket,that is not a good idea, if you arent satisfied with MEW you can get a hardwallet ledger or trezor would be great.

You need to know mew wallet is the most secured ethereum wallet for erc20 tokens because of its unique features,json file will assure your wallet address cant be compromised or copied by anyone,it is a unique ID for your wallets,you need the file abd your password to open your wallet,you can generate as much mew you want but you cant create a single key for all your wallets.

LOL, that would not work too as of now. MEW wallet give .json while you are signing up with them itself. More over their receiving address also static one not a dynamic. This is how even bitcoin address also once after every update. We are seeing muti wallet, dynamic address, 11x algorithm, segwit and all.
Better security MEW would be the fine option for you.

Please do not look into the non private key or centralized wallet. Those are mostly get hacked.

I think it is very safer for you to use multiple wallets and secure your tokens than to use one wallet in all your tokens and be exposed to hack. The most important factor is to take care of your private keys and never trust anyone with it.

How about buy hardware wallet (nano s) and using ethereum app login with myetherwallet, you can use multiple mew address with ledger nano s , no need to store your json file and private key ,

You can't do that with MEW. I think if you feel it's too complicated to have 10 ETH address on MEW, I think you should try to create ETH wallet on Etherdelta, you also can access to your wallet by MEW and create ETH wallet on Etherdelta is much easier and faster than create ETH wallet on MEW. When I want to get a lot of new ETH address I often use this method :)

I'm sticking to using my Ether Wallet, from what I have read on Reddit this hard fork is not putting my wallets in danger at all. I have used MEW for a few years now and have never had any issues.