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if I created a wallet with a password and then exported the private key .Does in any way I will need the password or is the private key sufficient ?
Thanks

The private key is always the most important.
However, in case you lose your private key, you should also additionally secure the "json" file to open which you need a password.
The password may also be needed to login to some wallets, so better secure it well, because you may still need it.

Back in 2016 when I first installed the official ETH wallet onto my computer, I had to specify a password for encrypting-decrypting the keystore file. So yes, you probably need the password. Always back up the keystore file, which should be located in `C:\Users\x\AppData\Local\Ethereum\" or something like that.

Private key should be enough when importing wallets to a new wallet or device.

I'm not sure what ethereum wallet are you going to use but most wallets use seed phrase now. It's easier to copy and write in a piece of paper as back up than a private key.

All the information that will be given to you when opening a wallet is important. If this information was not needed, you would not be provided. When you open a wallet you can get private key, password, json file and seed phrase. Of these, you will only need your wallet password when logging in with the json file.
In those wallets where there is an opportunity to login with private key, private key is sufficient to login your wallet.

The private key is sufficient, but there is a reason why you encrypt the private key using a password. If a hacker comes across your Keystore file (encrypted private key) they won't be able to access your funds if they don't know your password but if they come across your plane private key. It's game over.

Your private key is the most important part of the security get-up. It enables movement or transfer of tokens or coins, and also importation and exportation of the said wallet

As others have said, not just in ETH wallet, but even in BTC wallet, the private key is the most important aspect of our wallet. If you lost it, they say goodbye to your ETH or BTC holdings. And that is why it is designed to be very difficult to crack and it's supposedly unique for everyone. Password is there just for protection of your wallet, but if they can bypass it, then their next step is your private key which is very difficult to hack, unless the criminals pull a 5$ wrench attack on you and forced you to give them your private key.

exporting the private key from myetherwallet, i think, doesn't require a password. but in exporting the keystore file, it does have to use a password. so it would be better if you remember your password, maybe one day you will lose your private key.

my advice, you still have to remember your password or you can copy it to notepad or the like to make it easier for you if one day you lose or forget your password and private key.

As long as you have private key and it doesn't require the password. This is the key to sign in into your wallet. That's different when you are using like keystore to sign in into your wallet and that will require you to put the password that being used to encrypt your keystore. Private key will not sufficient and you can open it through MEW or mycrypto anytime as you want caused by what you have been owned was the key of wallet.

Forget the password, they aren't secured as you think, the most important one is the private key, if this gets to other people hand your asset will be wiped out and your password won't be able to safe you, I guess you need to read a lot about private keys or recovery seed, in their case a password is useless.

Private keys are enough, I always prioritize wallet applications that provide private key access over mnemonic phrases, I've had many wallets since MEW and each one already has a private key stored in a secret file. So I can access the wallet through any wallet application including using metamask.

The password that you create is only valid when you want to enter and open your wallet in the browser or on the device you are using, while the private key usually functions to import the wallet into certain Dex exchanges for swap or other purposes.
So it's not always the password that you create that will be asked when you do anything in your wallet.

Private key was enough. Privatekey was the main thing that you are looking for and you can use this to open your wallet anytime in the various ethereum wallets or any wallet that compatible with ethereum blockchain. In my opinion if your password is useless for now as you have privatekey in your hand. You can also try to take open use your privatekey anytime. This is the main important thing to be used. You must not feel worry if you are losing your password as long as you have privatekey to open it anytime.,
It's safe to hodl it as long as you can keep it in safe place

I believe it is preferable to save every login detail when you are opening a wallet however with your private keys, you can easily create a different password once you import your wallet to another ETH wallet but I save everything just in case.

Save your private key and wallet password file in different places. This will protect you from copying data errors. But if your deposit is more than $1,000, then I advise you to buy a Ledger or Trezor hardware wallet. Feel free to spend $100 on this.

The private key is enough you can transfer it from one wallet to another wallet, the private key was created when the wallet was created and the password is something you alone created I do create passwords when creating a new wallet in metamask or MEW but when transferring to a new wallet or logging in again to metamask, I only need the private key or the passphrase to open my wallet.

No need of password only private key or paraphrase words are sufficient. Password is just for purpose that if someone access your mobile so one cannot use your wallet to send fund without password. Paraphrase words or private key is important. If someone get access to this then he can use in any mobile and can send your all money.

it depends what is the requirements to manage your wallet, if it's just asking a private key then keep it and don't share it to anyone.. But sometimes there's a seed phrases, hence if its necessary, then keep it also because you can use it as a backup once you lost you private key.

You don't need the password if you will import the private key but you will need it in case you loss your key and you save the json file since json files need the password so that you can access. Just save the password together with the json file just to make sure you have a backup key in case shit happened to your keys.

I experience this already when my laptop got corrupted which contains my priv key. LucI save my json file on my google drive which I use to recover my ETH wallet.

Just keep the private key and you're good. Password is needed if you don't have a private key but since you have it, when you export it to another wallet then that will be enough.
To know it exactly, you can have a dry run and test a new wallet with a new private key without any funds and you'll see if it's working just as what everyone has told you here.

Password was only working when you are export or importing your wallet use keystore and it doesn't work when you are exporting it use your privatekey but when you wanna try to add your privatekey into the mobile wallet and it will require a password that you have setup it before.
In my opinion as long as you are opening your wallet into the non mobile wallet and it will not need any password to open your privatekey. It's not an important thing for now.

Save the private key and your password because you need that on certain instance but what most important thing you need to save is the private key since this is more vital upon securing your wallet. Also if you have the passphrase save it since this is also importance since this is counter part of your private key.

I have been using an Ethereum wallet for a very long time. And when I did the first registration, I fulfilled all the conditions of registration. Since for registration you need to follow all the protection instructions in order to save all the funds. If it is said to set a password, then you need to do it and not simplify your task. Since all means of protection must be used for safety.

Based on my experience with Ethereum wallets today the private key is enough when I use it to import to other wallets, its not that hard because Ethereum is mostly compatible with almost all other wallets today, unlike other blockchains that need more extra files, etc before it can import on any wallets but Ethereum is just simple and plain easy. I think the password may be needed if your backup file will be used to import on other devices mostly on desktops.

Definitely Private Key is sufficient to access your Wallet at anytime, but in Myetherwallet if you will create a account with password then you will get a keystore file, and you can't access your wallet without password when you have only keystore file. So i think you don’t need to password if you have store private key.

You don't need to worry as long as you keep the private key of the address carefully, I have experienced similar problems and it is not a danger. The danger if you reveal your data, make sure to always store it securely, when today the problem of individuals being attacked, stealing information and appropriating property is also increasingly common in this space.

That's one of the most confusing parts for newbies sometimes. When you create the wallet and input a password, it's needed. But all you need is the private key or seed phrase then you can import your wallet again. That's why it's easy to import from different wallets as long as you have the private key.

It is necessary to remember that your coins are stored not in a wallet, but in a blockchain. Accordingly, the password is required to work with the wallet that you have installed. Using the private key, you can import your account into any other wallet.

Hmmm if you wanna store your privatekey and your password may important for the future. It's better if you are keeping everything and you must also write or safe your password in safe place. Sometimes when you need it and then you can open your file that contain your password to open your wallet. You must store any sensitive data that related with your data. This is a very important thing for you. It's caused by if sometime you need password but you forget it and it may be a horrible thing in your life.
If you are using MEW and this didn't need any password to access it as long as you have the key.

What is the wallet you use? because it might be different for some wallets.

For example, in Metamask, if you export the private key, it came in a raw and in unencrypted manner. So you don't need anything else but the private key. You can directly import the private key to a wallet from an exported Metamask private key.

private key kinda enough for you in importing your address in another wallet but you should also remember that private key could be the weakness in this case if it falls in the hand of irresponsible person.
the fact that having private key doesn’t require you entering the password that you initially created it self could means that once it gets stolen then you’re done for.

when you export your private keys you need to create another passedword to the particular wallet you are exporting it to so that you have easy access of opening the wallet and even the private key is not suppose to leave or forget

OP no longer needs a password to log in wallet because he already saved the Private Key to open the wallet, it has been explained on page 1 above by the community and OP seems to understand very well what the question is. Even logging in with the private key is sufficient and doesn't require any password open it in order to transact. Other problem is that he must carefully look at the myetherwallet address because there are a lot of phishing.

The private key must be guarded and not used if it is not needed and don't connect the wallet with phishing, my friend didn't realize he connected the wallet with phishing but I immediately suggested moving important coin assets to a new address, because it could potentially be hacked because they have already transacted approval of automated requests from phishing websites.

Password just additional security to be able to open your wallet but as long as you have privatekey and it has the same meant like you have a key to open your house but it's different with you are opening your wallet not through use the privatekey. This will have different method like you will require your password to open it as well. Password will be required when you wanna open it through another method and save your wallet if you think that's important thing for you.
Any sensitive data must be managed so well to make sure if you will not lose it when you need it.

A private key is enough to log in to your wallet, so be careful with your private key do not disclose it to anyone. If you are planning to keep big money I would suggest storing it in an offline wallet.

Also this is not the best way to create you ether wallet. It comes on least safer side of the scale while creating your wallet. I would recommend you to use hardware wallets if you going to stay here for longer duration. Private keys can be phished these days by mirroring the MEW website. Even they themselves keep notifying such incidences already happened and you end up sending the private key to hackers through mirror sites. So be careful while doing that. Json is also option but again you have to keep that file way safe and upload it each time you have to access the wallet.

Thank you all for your answers.
I already knew the answer I just wanted to be sure.
Maybe I wasn't clear but I already Lost the password (because I never saved it because I knew that private key is enough), but then a second later - second guessing came in , because who know, what works for BTC or any other coin not necessarily means it's the same in ETH.
but with that I do understand that it's all comes to the same cryptography- AES128..so the private key can be used after opening a new wallet and import the private key.
Just wanted to be 100% sure that I won't get f in the future.   

Good. You could lock the thread if you think you found your answer from one of the members from page 1 to 3.
That way we won't invite spam posts later and in the future. Good luck in keeping your security stronger. You could look at Wallet Software (https://bitcointalk.org/index.php?board=37.0) and look for something that suits your needs.

one last question- is ETH still uses AES-128 ? why not 256 or stronger ?

The first point is the private key is very important, and one thing you need to remember this private key should be enough when you want to import wallet to wallet even to new devices. but if you lose your private key then you have to secure the Json file, in my opinion a password is also needed and even needed to enter the wallet, so my advice is more precisely, you need to save it because in the future of course you will need it again.

It can be concluded that the information provided by both of us and you when you want to open your wallet is very important.

Private key and Keystore file both are very important to access your Ac if you have one of them you still can access your account but it's always better to use Keystore file to access your Ethereum wallet and don't keep all these at one place keep it on a different place to be safer side.

The private key is enough every created wallet is associated with a private key there's no mention of a password, the password is just a security feature added by the wallet developer and the password can be changed anytime if you're using a metamask and you transfer to another computer you can set up another password but you cannot change your private key that is associated to your address.

The private key is enough every created wallet is associated with a private key there's no mention of a password, the password is just a security feature added by the wallet developer and the password can be changed anytime if you're using a metamask and you transfer to another computer you can set up another password but you cannot change your private key that is associated to your address.
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Thank you. That's what I understood from the beginning.
What I didn't understand is why people here are talking about saving the password for double guarantee.why not just save the private key twice ? 7 times..who cares ? I really don't see the usage of the password.
Thanks   

Why not just save the private key twice ? why I need silly json and silly password ? If I can access my funds just with private key then it's easier than json+password

No need to keep keystore file or password if you will store private key, even i think keystore file is a bit unsafe, anytime your file can be affected because you can't store it in offline that is big disadvantage. I feel safe only with private key in any wallet and i think online store is always risky.

The password is restricted to just that wallet, but your private key overrides all passwords when you import your account to another wallet. Private keys are always the thing to note when handling your cryptocurrency accounts

What if you make a mistake and write the wrong private key?
json+password is sometimes more convenient to use because it is very difficult to remember the private key, and json can be stored in the cloud if you come up with a complex password that is easy for you to remember.

mostly you only need your private keys, thats why you need to keep it very safe and secure such that no one will be able to use it aside you. your wallet password is only effective for that wallet at every time you are using it.

The private key is what you need most. If you lose your personal key, your wallet will have no value. For this you must keep the private key in a safe place.And you have to login a lot better with the password which is why you have to remember the password more safely.

If there is no encryption beforehand, you can open your wallets directly with your private key. But if you have a json file and encryption is in question, it is almost impossible to open it unless you remember the password. Therefore, be careful to use passwords that you will not forget or that you have definitely saved. In Trustwallet-style wallets, if you have 12-word codes, they usually do not ask for a password. However, this situation varies according to the applications.

Yes, in general a wallet password is just additional security when accessing the wallet and it is also better to use it with multiple layers of security for the wallet, whereas a very general security is the private key which must be very well guarded in order for the wallet to be very secure.

you can save the Keystore offline with a computer that never connects to the Internet.

That like Key and Padlock, both have pair with each other and no appropriate if we try to unlock using another key. So, we don't need the password for this situation, if we lost or another one have our key, it will definitely lost in second.

I think using private key is more convenient than using json, there are some non-custodial wallet that just use seedphrases or private keys instead of json files.

Why do you think storing json in the cloud is safe?, I think whether it's a private key or json, both need privacy and security, so store it offline instead of storing it in the cloud.

Private key alone is enough to move your eth and tokens in your wallet, but it is not recommended to use private key because its not secure.
Anyone can make phishing site to get people with their private key.
Using metamask wallet in browser extension is safer than using private key, or you can use other secure wallet.

Password and json file are required if you are using your system to log in. To secure your wallet, in case you loose your PC or Smart Phone, you need your private key/seed phrase. It all depends on the type of wallet you are using. It is important to record and keep all wallet access data offline. It is a worthwhile effort to ensure use of aphanumeric mix as password.

The Metamask extension in the browser also has two basic security features, where users have to import their private key into Metamask and set a password when logging in to Metamask. I think Metamask is completely safe to use and it's also clear as you said that using the metamask wallet in a browser extension is safer than the other options.