Topic: Can my Bitcoin be stolen - page 3. (Read 4481 times)

Quote from: Ron~Popeil on May 24, 2014, 10:28:02 AM

Any computer connected to the internet can be attacked. If you have enough to worry about get a laptop and never connect it to the internet.

Have there been known instances of attackers successfully bruteforcing keys made using a dice roll?

Do you mean dice roll by the result of (1-9)? If that is so, there is a lot of cases which the wallet was compromised.
-ranochigo

Is that the case no matter how many times the dice has been rolled? Also I added a few words after the numbers when generating my keys. Would that not make it harder for it to be bruteforced?

There is always a possibility, even if you add alot of letters, its not enough. Try generating a paper wallet, I believe alot of those paper wallet generators generates your privatekey using your mouse keystroke, its more random.
-ranochigo

I did a LOT of research before making my wallets. I often read that those paper wallet generators could be rigged (can't remember what the correct term is but you know what I mean

) and was lead to believe that the way I did it was the most secure way.

ranochigo

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Quote from: pinksheep on May 29, 2014, 06:34:11 AM

Quote from: ranochigo on May 29, 2014, 06:31:18 AM

Quote from: Ron~Popeil on May 24, 2014, 10:28:02 AM

Any computer connected to the internet can be attacked. If you have enough to worry about get a laptop and never connect it to the internet.

Have there been known instances of attackers successfully bruteforcing keys made using a dice roll?

Do you mean dice roll by the result of (1-9)? If that is so, there is a lot of cases which the wallet was compromised.
-ranochigo

Is that the case no matter how many times the dice has been rolled? Also I added a few words after the numbers when generating my keys. Would that not make it harder for it to be bruteforced?

There is always a possibility, even if you add alot of letters, its not enough. Try generating a paper wallet, I believe alot of those paper wallet generators generates your privatekey using your mouse keystroke, its more random.
-ranochigo

Velkro

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Quote from: ranochigo on May 29, 2014, 06:31:18 AM

Quote from: Ron~Popeil on May 24, 2014, 10:28:02 AM

Any computer connected to the internet can be attacked. If you have enough to worry about get a laptop and never connect it to the internet.

Have there been known instances of attackers successfully bruteforcing keys made using a dice roll?

Do you mean dice roll by the result of (1-9)? If that is so, there is a lot of cases which the wallet was compromised.
-ranochigo

Is that the case no matter how many times the dice has been rolled? Also I added a few words after the numbers when generating my keys. Would that not make it harder for it to be bruteforced?

ranochigo

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Quote from: Ron~Popeil on May 24, 2014, 10:28:02 AM

Any computer connected to the internet can be attacked. If you have enough to worry about get a laptop and never connect it to the internet.

I bought a cheap tablet solely for the purpose of generating addresses & making paper wallets. I did this offline & that tablet will never again be connected to the internet. I think that's about as safe as you can get.

I would think twice before doing this. There was some problem in the RNG on android, it allowed attackers to brute force the private key easily. It might be possible for another problem to surface, use an offline computer which will and have not connected to the internet.
-ranochigo

I didn't use a RNG. I rolled dice & then put the resulting number in as a brainwallet passphrase. Does that mean my paper wallets are safe or are they still at risk due to this RNG problem on Android?

That is worst, brainwallet isn't the most secure, attackers can bruteforce the result of your dice number. If sucessful, everything will be stolen.
-ranochigo

Have there been known instances of attackers successfully bruteforcing keys made using a dice roll?

Do you mean dice roll by the result of (1-9)? If that is so, there is a lot of cases which the wallet was compromised.
-ranochigo

pinksheep

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Quote from: Ron~Popeil on May 24, 2014, 10:28:02 AM

Any computer connected to the internet can be attacked. If you have enough to worry about get a laptop and never connect it to the internet.

I bought a cheap tablet solely for the purpose of generating addresses & making paper wallets. I did this offline & that tablet will never again be connected to the internet. I think that's about as safe as you can get.

I would think twice before doing this. There was some problem in the RNG on android, it allowed attackers to brute force the private key easily. It might be possible for another problem to surface, use an offline computer which will and have not connected to the internet.
-ranochigo

I didn't use a RNG. I rolled dice & then put the resulting number in as a brainwallet passphrase. Does that mean my paper wallets are safe or are they still at risk due to this RNG problem on Android?

That is worst, brainwallet isn't the most secure, attackers can bruteforce the result of your dice number. If sucessful, everything will be stolen.
-ranochigo

Have there been known instances of attackers successfully bruteforcing keys made using a dice roll?

pinksheep

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Quote from: ShameOnYou on May 28, 2014, 07:36:02 PM

Quote from: Ron~Popeil on May 24, 2014, 10:28:02 AM

Any computer connected to the internet can be attacked. If you have enough to worry about get a laptop and never connect it to the internet.

I bought a cheap tablet solely for the purpose of generating addresses & making paper wallets. I did this offline & that tablet will never again be connected to the internet. I think that's about as safe as you can get.

I would think twice before doing this. There was some problem in the RNG on android, it allowed attackers to brute force the private key easily. It might be possible for another problem to surface, use an offline computer which will and have not connected to the internet.
-ranochigo

I didn't use a RNG. I rolled dice & then put the resulting number in as a brainwallet passphrase. Does that mean my paper wallets are safe or are they still at risk due to this RNG problem on Android?

I don't know the specifics of this situation, but I took that to mean the "dice roll" is based on a faulty random number generator (RNG). So it can be cracked much more easily than if it were truly random.
]/quote]

How could my dice roll be based on a faulty RNG when I did it myself by hand? Also I checked various other passphrases on the tablet & on my PC to make sure the tablet was generating the same keys as the tablet. You all have me really worried now. Do I need to buy another tablet or PC & start again?

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Do not download a huge amounts or porn Cheesy

And you will probably stay away from most of the PC viruses. Be careful always for scammers not only on this forum, but anywhere.
BR

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Quote from: Ron~Popeil on May 24, 2014, 10:28:02 AM

Any computer connected to the internet can be attacked. If you have enough to worry about get a laptop and never connect it to the internet.

I bought a cheap tablet solely for the purpose of generating addresses & making paper wallets. I did this offline & that tablet will never again be connected to the internet. I think that's about as safe as you can get.

I would think twice before doing this. There was some problem in the RNG on android, it allowed attackers to brute force the private key easily. It might be possible for another problem to surface, use an offline computer which will and have not connected to the internet.
-ranochigo

I didn't use a RNG. I rolled dice & then put the resulting number in as a brainwallet passphrase. Does that mean my paper wallets are safe or are they still at risk due to this RNG problem on Android?

That is worst, brainwallet isn't the most secure, attackers can bruteforce the result of your dice number. If sucessful, everything will be stolen.
-ranochigo

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Quote from: ranlo on May 29, 2014, 03:31:05 AM

Quote from: C.Steven on May 29, 2014, 03:27:49 AM

Quote from: ranlo on May 29, 2014, 02:32:13 AM

Quote from: C.Steven on May 29, 2014, 03:27:49 AM

The answer is yes. Be very careful of Malware and software that claims to increase your bitcoin. Eventually the hackers will Crack the algorithm for wallets. Just a matter of time.

If this ever became a real threat (people have already considered quantum computing and still say it isn't possible) the encryption would just be changed I'd think. I wouldn't really worry about it being cracked. As long as you use a decent password obviously.

Keylogger could log your password when you enter it (say, when you create a tx to send out bitcoin), and your bitcoin would be gone even if you used an extremely long random password. Wink

I was responding to the cracking wallet passwords part. Keylogging isn't cracking; it's keylogging. Very different things.

I see. My bad, I thought you were referring to the "Be very careful of Malware" part. Tongue

ranlo

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Quote from: ranlo on May 29, 2014, 02:32:13 AM

Quote from: ranlo on May 29, 2014, 02:32:13 AM

The answer is yes. Be very careful of Malware and software that claims to increase your bitcoin. Eventually the hackers will Crack the algorithm for wallets. Just a matter of time.

If this ever became a real threat (people have already considered quantum computing and still say it isn't possible) the encryption would just be changed I'd think. I wouldn't really worry about it being cracked. As long as you use a decent password obviously.

Keylogger could log your password when you enter it (say, when you create a tx to send out bitcoin), and your bitcoin would be gone even if you used an extremely long random password. Wink

I was responding to the cracking wallet passwords part. Keylogging isn't cracking; it's keylogging. Very different things.

C.Steven

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The answer is yes. Be very careful of Malware and software that claims to increase your bitcoin. Eventually the hackers will Crack the algorithm for wallets. Just a matter of time.

If this ever became a real threat (people have already considered quantum computing and still say it isn't possible) the encryption would just be changed I'd think. I wouldn't really worry about it being cracked. As long as you use a decent password obviously.

Keylogger could log your password when you enter it (say, when you create a tx to send out bitcoin), and your bitcoin would be gone even if you used an extremely long random password. Wink

ranlo

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The answer is yes. Be very careful of Malware and software that claims to increase your bitcoin. Eventually the hackers will Crack the algorithm for wallets. Just a matter of time.

If this ever became a real threat (people have already considered quantum computing and still say it isn't possible) the encryption would just be changed I'd think. I wouldn't really worry about it being cracked. As long as you use a decent password obviously.

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In holiday we trust

The answer is yes. Be very careful of Malware and software that claims to increase your bitcoin. Eventually the hackers will Crack the algorithm for wallets. Just a matter of time.

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