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Author Topic: HOWTO: create a 100% secure wallet  (Read 274007 times)
bitster
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July 12, 2012, 05:50:54 PM
 #841

informative thanks.
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Papina
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July 13, 2012, 01:36:21 AM
 #842

thanks for this information
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July 13, 2012, 10:07:41 PM
 #843

Thank you for this resource - it's a great read for a new user.

I have a question about taking a similar approach, but with some slightly different parameters:

1) I don't have an optical drive, but I'm just about to do a full system format and fresh install of Win 7. If I made the general process described in the OP my first task, and then securely wiped the wallet.dat file (and uninstalled the client), I could accomplish largely the same level of security, correct?

2) Suppose I want to undertake the process described above, without ever connecting my OS to the internet, does that work? I presume the the bitcoin client doesn't actually require the whole blockchain to be downloaded in order to simply generate the wallet.dat file.

Thanks!
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July 13, 2012, 11:34:54 PM
 #844

Really sorry to put a downer on the conversation, But seeing as lately there is a problem with residual currents in many brands of RAM, isn't it feasible that by removing the RAm from the PC in use and then accessing it via another medium, theft is still possible?

I've heard of this kind of attack before, Obviously there is a limit on how long the memory can be left after shutdown, but it would make sense to power cycle the PC in question before leaving...

note: This probably isn't something for the average user to worry about, seeing as the thief would mostlikely have to be a friend or family member unless they plan to break into the house immediately after the PC is used. That would beg the question, Why bother? It's just a pointer for people with masses upon masses of coins.

If someone has enough BTC to worry about such a sophisticated/unlikely attack, I hope they converted some coins to pay for a good security system. Cheesy It is entirely possible if the keys, or a passphrase to them, are in cleartext in memory for any reason.

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John (John K.)
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July 14, 2012, 03:35:54 AM
 #845

Thank you for this resource - it's a great read for a new user.

I have a question about taking a similar approach, but with some slightly different parameters:

1) I don't have an optical drive, but I'm just about to do a full system format and fresh install of Win 7. If I made the general process described in the OP my first task, and then securely wiped the wallet.dat file (and uninstalled the client), I could accomplish largely the same level of security, correct?

2) Suppose I want to undertake the process described above, without ever connecting my OS to the internet, does that work? I presume the the bitcoin client doesn't actually require the whole blockchain to be downloaded in order to simply generate the wallet.dat file.

Thanks!

It depends on what you ascertain as the 'same level of security'. If you made sure your OS is clean, and you wipe all traces securely, then yes, your wallet should be secure.
You can generate the wallet.dat file without having to connect to the internet at all.

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lemonzest
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July 14, 2012, 10:04:10 PM
 #846

Great thread, thanks. Smiley
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July 16, 2012, 04:52:46 PM
 #847

thank you for this information Smiley
zorgberg
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July 16, 2012, 06:04:27 PM
 #848

Very nice information, thanks friends.

-The zorgberg
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July 17, 2012, 04:17:14 PM
 #849

i downloaded the default client from bitcoin.org, the bitcoin-qt one, but it didnt create 10 addresses for me, just one and also i can't locate the wallet.dat file. Any help with that?
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July 17, 2012, 06:09:55 PM
 #850

Hey all,

Last week I posted 2 quick questions up a bit on this thread:
https://bitcointalk.org/index.php?topic=17240.msg1028921#msg1028921

I'm wondering if someone could glance at them and give my reasoning a sanity / double check?
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July 17, 2012, 06:14:42 PM
 #851

Hey all,

Last week I posted 2 quick questions up a bit on this thread:
https://bitcointalk.org/index.php?topic=17240.msg1028921#msg1028921

I'm wondering if someone could glance at them and give my reasoning a sanity / double check?

John has actually answered both your questions:
https://bitcointalk.org/index.php?topic=17240.msg1029620#msg1029620
Testit
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July 17, 2012, 09:49:12 PM
 #852

Thanks for all the info  Smiley
 I will testit
jackson123
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July 17, 2012, 10:21:29 PM
 #853

thanks a lot, this was really helpful and easy to follow.
GetFreeCoins
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July 18, 2012, 07:03:21 PM
 #854

This sounds like a very long and proccess on how to secure your wallet, if you are very afraid you should indeed follow this guide. I do not really have the Bitcoins very secure, some of them are put in several InstaWallet accounts and someone in the normal Bitcoin client.
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July 19, 2012, 01:29:33 AM
 #855

Ideal method is to just have bitcoind running on a server & store your wallet *~/.bitcoin* folder as an encfs partition.
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July 19, 2012, 08:26:22 AM
 #856

No wallet is 100% secure except an offline wallet where you do the hashing on an abacus... Its entirely possible (likely) a 0-day exploit will be discovered and you will lose every bitcoin handled by your client...


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unclemantis
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July 20, 2012, 04:10:19 AM
 #857

No wallet is 100% secure except an offline wallet where you do the hashing on an abacus... Its entirely possible (likely) a 0-day exploit will be discovered and you will lose every bitcoin handled by your client...



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July 20, 2012, 07:34:44 AM
 #858

need to have antirus
preventing or securing us from identity theft

my address :18TTx6qBr2LTiyRu6SuLDX1SFwDCQyeJRC
louisBSAS
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July 20, 2012, 06:13:21 PM
 #859

I'm on Linux, so I am not worried about virus attacks.  I back up my wallet.dat regularly to several pen drives.

Question:  I am mining so I usually have 4 or 5 transactions awaiting another 100+ block solves before they are confirmed.  Let's say I backup my wallet and something happens / need to restore it.  If I restore the a .dat - that was backed up with 4 partially confirmed transactions, will they be reconfirmed or lost?

Thx


drrussellshane
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July 20, 2012, 06:17:06 PM
 #860

I'm on Linux, so I am not worried about virus attacks.  I back up my wallet.dat regularly to several pen drives.

Question:  I am mining so I usually have 4 or 5 transactions awaiting another 100+ block solves before they are confirmed.  Let's say I backup my wallet and something happens / need to restore it.  If I restore the a .dat - that was backed up with 4 partially confirmed transactions, will they be reconfirmed or lost?

Thx



They would be confirmed.

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