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leotry
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November 11, 2017, 04:18:02 AM
 #1

Hey guys im done with Electrum went to there IRC chat and found 2 bugs that had to do with security flaws and another being not able to re-secure your wallet after recovering it to many bugs wasn't worth saving btc on it.

So I need you guys to help me so I was thinking to get a paper wallet if i wanted to use it with blockchain.info i have to do what steps on doing that and do i have to keep putting the key from paper wallet to the exchange everytime i wanna use it? Also I think i am able to put a 2fa on blockchain.info on top with the paper wallet key if im wrong please correct me but is this a good idea to save less then $700 on BTC for long term. Thanks
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November 11, 2017, 04:28:41 AM
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Basically you need to import the privatekey from the paperwallet into any bitcoin client  you want to use the funds on it.
Blockchain.info and a paperwallet, are 2 seperate things. You can import your privatekey to blockchain.info and use the corresponding address.

You can then use 2fa on your blockchain.info account, but it's in no means an extra layer of security for your paper wallet. Anyone who possesses  that privatekey has access to the funds.

2fa just makes sure people can't get into your blockchain.info account.

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November 11, 2017, 04:34:59 AM
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There are different types of wallets based on your goals. You can have:
Hot wallet for regular transfer to exchanges or other addresses.
Cold wallet for long term storage. It could be paper wallet for example. You just save private key in few(3 or more) different(!) places and forget about it for a while. Paper wallet isn't convient for using regularly.
2fa isn't safest option but it is better than nothing.

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November 11, 2017, 04:42:32 AM
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Basically you need to import the privatekey from the paperwallet into any bitcoin client  you want to use the funds on it.
Blockchain.info and a paperwallet, are 2 seperate things. You can import your privatekey to blockchain.info and use the corresponding address.

You can then use 2fa on your blockchain.info account, but it's in no means an extra layer of security for your paper wallet. Anyone who possesses  that privatekey has access to the funds.

2fa just makes sure people can't get into your blockchain.info account.



I understand that so I just wanted to use 2fa so that no one can get into my account and put a encryption and password on the paperwallet.
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November 11, 2017, 05:19:56 AM
 #5

Hey guys im done with Electrum went to there IRC chat and found 2 bugs that had to do with security flaws and another being not able to re-secure your wallet after recovering it to many bugs wasn't worth saving btc on it.
Care to elaborate what these bugs are? Huh I'm sure a lot of people (like myself) would be very interested in potential issues... Electrum is a very popular wallet.

Did you post about them on the Electrum GitHub issues list: https://github.com/spesmilo/electrum/issues ?

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November 11, 2017, 05:58:31 AM
 #6

Hey guys im done with Electrum went to there IRC chat and found 2 bugs that had to do with security flaws and another being not able to re-secure your wallet after recovering it to many bugs wasn't worth saving btc on it.
Care to elaborate what these bugs are? Huh I'm sure a lot of people (like myself) would be very interested in potential issues... Electrum is a very popular wallet.

Did you post about them on the Electrum GitHub issues list: https://github.com/spesmilo/electrum/issues ?

I found out one big bug which was when recovering back your wallet and you lost your authenticator there is no way to set a new one which makes you able to get your wallet back but no re-secured. The other buy was a minor code bug.
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November 15, 2017, 07:28:09 PM
 #7

Hey guys im done with Electrum went to there IRC chat and found 2 bugs that had to do with security flaws and another being not able to re-secure your wallet after recovering it to many bugs wasn't worth saving btc on it.
Care to elaborate what these bugs are? Huh I'm sure a lot of people (like myself) would be very interested in potential issues... Electrum is a very popular wallet.

Did you post about them on the Electrum GitHub issues list: https://github.com/spesmilo/electrum/issues ?

I found out one big bug which was when recovering back your wallet and you lost your authenticator there is no way to set a new one which makes you able to get your wallet back but no re-secured. The other buy was a minor code bug.

Well, that is how 2FA is supposed to work. Otherwise, you could just circumvent it.

Plus, I'm pretty sure that the seed can pose as a backup that circumvents any other type of guarding, such as encrypted wallet files, 2FA and so on.

Basically you need to import the privatekey from the paperwallet into any bitcoin client  you want to use the funds on it.
Blockchain.info and a paperwallet, are 2 seperate things. You can import your privatekey to blockchain.info and use the corresponding address.

You can then use 2fa on your blockchain.info account, but it's in no means an extra layer of security for your paper wallet. Anyone who possesses  that privatekey has access to the funds.

2fa just makes sure people can't get into your blockchain.info account.



I understand that so I just wanted to use 2fa so that no one can get into my account and put a encryption and password on the paperwallet.

If anyone, including you, is able to "get into your account" and encrypt your wallet, it is most definetely not a paperwallet.

The definition of a paperwallet is a wallet, which is created offline, with the private keys printed on a piece of paper (or otherwise stored in an offline way), without anything, apart from the public address, ever touching the internet until its funds are spent. After that, a paperwallet is not a paperwallet anymore.



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Spendulus
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November 18, 2017, 01:21:23 PM
 #8

.....

The definition of a paperwallet is a wallet, which is created offline, with the private keys printed on a piece of paper (or otherwise stored in an offline way), without anything, apart from the public address, ever touching the internet until its funds are spent. After that, a paperwallet is not a paperwallet anymore.

Good definition.

Another option is to load wallet software, import the funds, then just write the private key on a piece of paper. Then delete the wallet software and wallet.

Not as perfect but quick and dirty.

DEFINITELY NOT AS PERFECT.
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November 20, 2017, 10:27:23 AM
 #9

Definitely, if you are going to have private is better to take your password in a piece of paper or you can try writing in a sticky note and post it in your private room so that no one can see it only you can view it not unless there is someone else who has accessed to your room. One option is to your email, for example, write a draft email where it can save and email it to yourself so that it will be saved on your email address, of course, you have to protect your email account by editing some of the settings there.

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