<<  >> (p.2)
    Author Topic: Brutforcing a wallet  (Read 8265 times)

    • Nephilims
    Newbie
    *
    Offline

    Activity: 12
    Merit: 0


    View Profile
    January 25, 2014, 06:44:38 AM
     #21
    Quote from: gweedo on January 25, 2014, 05:41:35 AM
    Quote from: Nephilims on January 25, 2014, 05:25:00 AM
    I imagine in this thread I know the least about the technical aspects of cryptocurrencies and this may be a bit off topic, but when bitcoins reached $1,200 I was curious to know how secure they were, so I gave my kid a task. He had 2 hours to see how many bitcoin addresses he could generate while checking each one for a positive balance. He found 3 accounts that contained many many bitcoins, I was so tempted to take them, that I had to delete his internet history.

    Yeah ok... Do you know how bitcoin addresses are even generated? Most applications have very unique entropy, so just by generating addresses you probably wouldn't get any hits. What was he using for the entropy source?

    He typed long strings of random characters to generate each address.

  • gadman2
    Legendary
    *
    Offline

    Activity: 982
    Merit: 1006



    View Profile
    January 25, 2014, 07:03:23 AM
     #22
    Quote from: Nephilims on January 25, 2014, 06:44:38 AM
    Quote from: gweedo on January 25, 2014, 05:41:35 AM
    Quote from: Nephilims on January 25, 2014, 05:25:00 AM
    I imagine in this thread I know the least about the technical aspects of cryptocurrencies and this may be a bit off topic, but when bitcoins reached $1,200 I was curious to know how secure they were, so I gave my kid a task. He had 2 hours to see how many bitcoin addresses he could generate while checking each one for a positive balance. He found 3 accounts that contained many many bitcoins, I was so tempted to take them, that I had to delete his internet history.

    Yeah ok... Do you know how bitcoin addresses are even generated? Most applications have very unique entropy, so just by generating addresses you probably wouldn't get any hits. What was he using for the entropy source?

    He typed long strings of random characters to generate each address.

    El oh El. Troll.

  • Nephilims
    Newbie
    *
    Offline

    Activity: 12
    Merit: 0


    View Profile
    January 25, 2014, 08:02:14 AM
     #23
    Quote from: gadman2 on January 25, 2014, 07:03:23 AM
    Quote from: Nephilims on January 25, 2014, 06:44:38 AM
    Quote from: gweedo on January 25, 2014, 05:41:35 AM
    Quote from: Nephilims on January 25, 2014, 05:25:00 AM
    I imagine in this thread I know the least about the technical aspects of cryptocurrencies and this may be a bit off topic, but when bitcoins reached $1,200 I was curious to know how secure they were, so I gave my kid a task. He had 2 hours to see how many bitcoin addresses he could generate while checking each one for a positive balance. He found 3 accounts that contained many many bitcoins, I was so tempted to take them, that I had to delete his internet history.

    Yeah ok... Do you know how bitcoin addresses are even generated? Most applications have very unique entropy, so just by generating addresses you probably wouldn't get any hits. What was he using for the entropy source?

    He typed long strings of random characters to generate each address.

    El oh El. Troll.

    I am not trolling

    After seeing that, I assume it is very easy to generate addresses that contain coins and that you guys have to be aware of it. I forgot to mention he also found a few accounts that previously had coins too. But like I said, I am not trolling, just sharing my experience with the community.

  • samurai1200
    Sr. Member
    ****
    Offline

    Activity: 303
    Merit: 250


    View Profile
    January 25, 2014, 09:09:15 AM
     #24
    Um.
    Hodl for the longest tiem.

    Use it or lose it: http://coinmap.org/

  • U1TRA_L0RD
    Full Member
    ***
    Offline

    Activity: 126
    Merit: 100

    CAUTION: Angry Man with Attitude.


    View Profile
    January 25, 2014, 09:40:45 AM
     #25
    I Really want to build a super GPU computer consisting of over 30 High end GPU's and take everyones BTC. Smiley

  • byt411
    Hero Member
    *****
    Offline

    Activity: 798
    Merit: 1000


    View Profile
    January 25, 2014, 01:06:29 PM
     #26
    Quote from: U1TRA_L0RD on January 25, 2014, 09:40:45 AM
    I Really want to build a super GPU computer consisting of over 30 High end GPU's and take everyones BTC. Smiley

    LOL that is obvious, look at your trust rating!

  • Nancarrow
    Hero Member
    *****
    Offline

    Activity: 492
    Merit: 503


    View Profile
    January 25, 2014, 02:15:43 PM
     #27
    Quote from: Evil-Knievel on January 24, 2014, 06:13:21 PM
    Well, the "laws of the universe" know time dilletation right?
    You could cause a computer, which is accellerated to near light speed, to bruteforce for 100.000.000.000 years (your picture states that power consumption is negligable)  while here on earth only a few seconds pass by. This is Einstein's "laws of the universe".  Grin

    Unfortunately "Einstein's laws of the universe" work precisely the other way round. Bump something up to near lightspeed for however long you like, then bring it back, it'll only have run SLOWER than if you'd left it on Earth.

    http://en.wikipedia.org/wiki/Time_dilation
    If I've said anything amusing and/or informative and you're feeling generous:
    1GNJq39NYtf7cn2QFZZuP5vmC1mTs63rEW

  • cr1776
    Legendary
    *
    Offline

    Activity: 4667
    Merit: 1379


    View Profile
    January 25, 2014, 04:18:30 PM
     #28
    Quote from: Nancarrow on January 25, 2014, 02:15:43 PM
    Quote from: Evil-Knievel on January 24, 2014, 06:13:21 PM
    Well, the "laws of the universe" know time dilletation right?
    You could cause a computer, which is accellerated to near light speed, to bruteforce for 100.000.000.000 years (your picture states that power consumption is negligable)  while here on earth only a few seconds pass by. This is Einstein's "laws of the universe".  Grin

    Unfortunately "Einstein's laws of the universe" work precisely the other way round. Bump something up to near lightspeed for however long you like, then bring it back, it'll only have run SLOWER than if you'd left it on Earth.

    http://en.wikipedia.org/wiki/Time_dilation


    I'm glad I read to the end of the thread before pointing this out too.  ;-) 

  • U1TRA_L0RD
    Full Member
    ***
    Offline

    Activity: 126
    Merit: 100

    CAUTION: Angry Man with Attitude.


    View Profile
    January 26, 2014, 01:33:05 AM
     #29
    Quote from: byt411 on January 25, 2014, 01:06:29 PM
    Quote from: U1TRA_L0RD on January 25, 2014, 09:40:45 AM
    I Really want to build a super GPU computer consisting of over 30 High end GPU's and take everyones BTC. Smiley

    LOL that is obvious, look at your trust rating!
    Not even close to being a scammer, A scammer buster, I had to give negative to warn the community and I got negative back, Read before talking buddy Wink

  • sase007
    Sr. Member
    ****
    Offline

    Activity: 364
    Merit: 250


    View Profile
    January 26, 2014, 01:36:43 AM
     #30
    Well... you can try to bruteforce wallet if you have enought time...


     
    enought time = a few thousand years Cheesy Cheesy

  • U1TRA_L0RD
    Full Member
    ***
    Offline

    Activity: 126
    Merit: 100

    CAUTION: Angry Man with Attitude.


    View Profile
    January 26, 2014, 01:49:22 AM
     #31
    Quote from: sase007 on January 26, 2014, 01:36:43 AM
    Well... you can try to bruteforce wallet if you have enought time...


     
    enought time = a few thousand years Cheesy Cheesy

    I will have to take out my wizardry book to enhance the GPU's xD

  • sase007
    Sr. Member
    ****
    Offline

    Activity: 364
    Merit: 250


    View Profile
    January 26, 2014, 01:52:59 AM
     #32
    Quote from: U1TRA_L0RD on January 26, 2014, 01:49:22 AM
    Quote from: sase007 on January 26, 2014, 01:36:43 AM
    Well... you can try to bruteforce wallet if you have enought time...


     
    enought time = a few thousand years Cheesy Cheesy

    I will have to take out my wizardry book to enhance the GPU's xD


    lol Cheesy

    But seriously now:

    he could do it (in theory) if he has blessing of night mother...
    It is like solo mining... you can find block in 1 minute or never Cheesy

  • Altoidnerd
    Sr. Member
    ****
    Offline

    Activity: 406
    Merit: 255


    http://altoidnerd.com


    View Profile WWW
    January 26, 2014, 02:57:14 AM
     #33
    You will be happy to know brute forcing takes a little bit longer on the surface of the earth as clocks tick slower here than in free space.

    If you sent away a brute forcing computer at high speeds, it would appear from earth's vantage point to be brute forcing more slowly.  So the brute force starship attack by brute speed is fundamentally flawed.
    Do you even mine?
    http://altoidnerd.com 
    12gKRdrz7yy7erg5apUvSRGemypTUvBRuJ

  • odolvlobo
    Legendary
    *
    Offline

    Activity: 5124
    Merit: 3839



    View Profile
    January 26, 2014, 05:01:00 AM
     #34
    Quote from: Evil-Knievel on January 25, 2014, 10:56:47 PM
    Quote from: gweedo on January 25, 2014, 10:54:08 PM
    Quote from: Evil-Knievel on January 25, 2014, 10:39:28 PM
    Do not believe these disbelievers, nor believe all these eye catching "all addresses are safe" posters.
    Just take a look at my video (http://www.youtube.com/watch?v=TC43aOdsf4g&hd=1) where I actually crack a private key live on camera.
    All transactions in this video are performed on the real block chain, and can be verified on blockchain.info.
    First off how do we know you entropy was not something like 1 and the cracker just generated that character first. This shows no flaw, it shows nothing. You took a public key from an unknown entropy and got the private key. You didn't brute force any private key. Until you brute force my private key, this video is invalid.
    Lol, if the entropy was 1 we would have only two different addresses generated. But the random address generator was generating dozens of different addresses. More precisely, the entropy came from pythons "random.randrange()".
    Actually, now I know that you are just trolling as you seem to ignore everything that I try to explain. You said it is not possible to crack any private_key ... but I have just cracked a private key in seconds. A private key of a legit bitcoin address verified on blockchain.info. So your statement is clearly not true.

    You have demonstrated that random.randrange() can be an extremely poor entropy generator. I hope that no real bitcoin address generator uses that function to generate addresses, though I guess it is possible that someone might use it.
    Join an anti-signature campaign: Click ignore on the members of signature campaigns.
    PGP Fingerprint: 6B6BC26599EC24EF7E29A405EAF050539D0B2925 Signing address: 13GAVJo8YaAuenj6keiEykwxWUZ7jMoSLt

  • Evil-Knievel
    Legendary
    *
    Offline

    Activity: 1260
    Merit: 1171



    View Profile
    January 26, 2014, 08:08:44 AM
    Last edit: April 17, 2016, 09:20:10 PM by Evil-Knievel
     #35
    This message was too old and has been purged

  • flatfly
    Legendary
    *
    Offline

    Activity: 1299
    Merit: 1401

    Joined: 2012


    View Profile
    January 26, 2014, 10:43:40 AM
     #36
    Quote from: odolvlobo on January 26, 2014, 05:01:00 AM
    Quote from: Evil-Knievel on January 25, 2014, 10:56:47 PM
    Quote from: gweedo on January 25, 2014, 10:54:08 PM
    Quote from: Evil-Knievel on January 25, 2014, 10:39:28 PM
    Do not believe these disbelievers, nor believe all these eye catching "all addresses are safe" posters.
    Just take a look at my video (http://www.youtube.com/watch?v=TC43aOdsf4g&hd=1) where I actually crack a private key live on camera.
    All transactions in this video are performed on the real block chain, and can be verified on blockchain.info.
    First off how do we know you entropy was not something like 1 and the cracker just generated that character first. This shows no flaw, it shows nothing. You took a public key from an unknown entropy and got the private key. You didn't brute force any private key. Until you brute force my private key, this video is invalid.
    Lol, if the entropy was 1 we would have only two different addresses generated. But the random address generator was generating dozens of different addresses. More precisely, the entropy came from pythons "random.randrange()".
    Actually, now I know that you are just trolling as you seem to ignore everything that I try to explain. You said it is not possible to crack any private_key ... but I have just cracked a private key in seconds. A private key of a legit bitcoin address verified on blockchain.info. So your statement is clearly not true.

    You have demonstrated that random.randrange() can be an extremely poor entropy generator. I hope that no real bitcoin address generator uses that function to generate addresses, though I guess it is possible that someone might use it.

    hmmm.... for starters, randrange() is not a generator.

    also, many wallets and tools use that function. One simple example is NoBrainr:
    https://bt.irlbtc.com/view/308972.0

    I would like to challenge you to "crack" any key generated by it...
    Did you know? Counterparty is still alive! It's the Bitcoin-native DEX with a fascinating history, running with zero downtime since 2014.

  • Evil-Knievel
    Legendary
    *
    Offline

    Activity: 1260
    Merit: 1171



    View Profile
    January 26, 2014, 10:51:42 AM
    Last edit: April 17, 2016, 09:19:49 PM by Evil-Knievel
     #37
    This message was too old and has been purged

  • flatfly
    Legendary
    *
    Offline

    Activity: 1299
    Merit: 1401

    Joined: 2012


    View Profile
    January 26, 2014, 10:58:49 AM
     #38
    Quote from: Evil-Knievel on January 26, 2014, 10:51:42 AM
    flatfly: I have reviewed NoBrainr and I thing you do not need any of these sophisticated tools to crack addresses created by it.
    Actually, a simple programmable calculator is enough.

    Let me grab all cold wallets ever created with NoBrainr, and come back to this thread ;-)

    I'm not convinced about your uber hax0r skills but you sure are entertaining Wink

    Of course, if you post a proof (other than a funny/shaky/blurry video), I'll review my statement Smiley
    Did you know? Counterparty is still alive! It's the Bitcoin-native DEX with a fascinating history, running with zero downtime since 2014.

  • Evil-Knievel
    Legendary
    *
    Offline

    Activity: 1260
    Merit: 1171



    View Profile
    January 26, 2014, 11:06:21 AM
    Last edit: April 17, 2016, 09:19:37 PM by Evil-Knievel
     #39
    This message was too old and has been purged

  • prezbo
    Sr. Member
    ****
    Offline

    Activity: 430
    Merit: 253


    View Profile
    January 26, 2014, 11:07:44 AM
     #40
    Quote from: Evil-Knievel on January 26, 2014, 11:06:21 AM
    Quote from: flatfly on January 26, 2014, 10:58:49 AM
    Quote from: Evil-Knievel on January 26, 2014, 10:51:42 AM
    flatfly: I have reviewed NoBrainr and I thing you do not need any of these sophisticated tools to crack addresses created by it.
    Actually, a simple programmable calculator is enough.

    Let me grab all cold wallets ever created with NoBrainr, and come back to this thread ;-)

    I'm not convinced about your uber hax0r skills but you sure are entertaining Wink

    Of course, if you post a proof (other than a funny/shaky/blurry video), I'll review my statement Smiley

    There is no proof needed:

    Nobrainr:
    Wordlist Length: 7776
    Number of Random Words: 7
    Size of Search Space: 7776^7 = 1.71 * 1027
    Maximum Possible Search Space: 2256 = 1.15 * 1077
    Result: Searchspace is Reduced to this percentage: 1.484618518476838608918817891513466139612896777*10-50

    I am starting right away, in the hope that anyone has a 1000 BTC cold wallet out there just waiting for me.

    Good luck with that. Cheesy
    Pages: « 1 [2] 3 4 »  All
      Print  
Page 1
Viewing Page: 2

IRLBTC™ © 2026 IRLBTC.com