Bitcoin Forum
May 04, 2024, 02:17:02 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Bitcoin Forum > Bitcoin > Development & Technical Discussion > Malleability Query
Pages: [1]
« previous topic next topic »
  Print  
Author Topic: Malleability Query  (Read 2355 times)
davidgdg (OP)
Hero Member
*****
Offline Offline

Activity: 551
Merit: 501


View Profile
February 14, 2014, 10:03:53 AM
 #1
Have I got this right?

Mr. Bad has 1 BTC in account with Gox

Mr. Bad sends withdrawal request for 1 BTC to Gox

Gox software sends 1 BTC with TX no. 0 to Mr. Bad

Mr. Bad broadcasts mutated version with TX no. 1

If TX no 1 gets in blockchain first then TX 0 never confirms.

Mr. Bad can then withdraw another 1 BTC from Gox because Gox in-house software checks only for whether TX 0 has confirmed.

Rinse and repeat?

But how can Mr. Bad broadcast mutated version quickly enough? How does he know when Gox have sent Tx 0? Unless he can do it quickly, Tx 0 is likely to confirm before Tx 1?




"There is only one thing that is seriously morally wrong with the world, and that is politics. By 'politics' I mean all that, and only what, involves the State." Jan Lester "Escape from Leviathan"
1714789022
Hero Member
*
Offline Offline

Posts: 1714789022

View Profile Personal Message (Offline)

Ignore
1714789022
1714789022
Reply with quote  #2
1714789022
Report to moderator
1714789022
Hero Member
*
Offline Offline

Posts: 1714789022

View Profile Personal Message (Offline)

Ignore
1714789022
1714789022
Reply with quote  #2
1714789022
Report to moderator
1714789022
Hero Member
*
Offline Offline

Posts: 1714789022

View Profile Personal Message (Offline)

Ignore
1714789022
1714789022
Reply with quote  #2
1714789022
Report to moderator
"The nature of Bitcoin is such that once version 0.1 was released, the core design was set in stone for the rest of its lifetime." -- Satoshi
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
1714789022
Hero Member
*
Offline Offline

Posts: 1714789022

View Profile Personal Message (Offline)

Ignore
1714789022
1714789022
Reply with quote  #2
1714789022
Report to moderator
1714789022
Hero Member
*
Offline Offline

Posts: 1714789022

View Profile Personal Message (Offline)

Ignore
1714789022
1714789022
Reply with quote  #2
1714789022
Report to moderator
1714789022
Hero Member
*
Offline Offline

Posts: 1714789022

View Profile Personal Message (Offline)

Ignore
1714789022
1714789022
Reply with quote  #2
1714789022
Report to moderator
thenoblebot
Sr. Member
****
Offline Offline

Activity: 364
Merit: 252


View Profile
February 14, 2014, 10:34:16 AM
 #2
Here you go https://bitcointalk.org/index.php?topic=458608.0
Pages: [1]
  Print  
Bitcoin Forum > Bitcoin > Development & Technical Discussion > Malleability Query
 « previous topic next topic »
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!