Bitcoin Forum
December 12, 2017, 04:19:31 PM *
News: Latest stable version of Bitcoin Core: 0.15.1  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: What does this mean?  (Read 614 times)
solareclipse64236
Sr. Member
****
Offline Offline

Activity: 392



View Profile
October 28, 2013, 05:59:54 AM
 #1

SatoshiMines - Source of entropy is bad, the house can easily bruteforce the hash to make you win/lose. Including "random" non-preselected strings in the hash render the whole process insecure.

'from https://bitcointalk.org/index.php?topic=216280.0;

1513095571
Hero Member
*
Offline Offline

Posts: 1513095571

View Profile Personal Message (Offline)

Ignore
1513095571
Reply with quote  #2

1513095571
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1513095571
Hero Member
*
Offline Offline

Posts: 1513095571

View Profile Personal Message (Offline)

Ignore
1513095571
Reply with quote  #2

1513095571
Report to moderator
1513095571
Hero Member
*
Offline Offline

Posts: 1513095571

View Profile Personal Message (Offline)

Ignore
1513095571
Reply with quote  #2

1513095571
Report to moderator
1513095571
Hero Member
*
Offline Offline

Posts: 1513095571

View Profile Personal Message (Offline)

Ignore
1513095571
Reply with quote  #2

1513095571
Report to moderator
rigel
Legendary
*
Offline Offline

Activity: 1124


Thank God I'm an atheist


View Profile
October 28, 2013, 10:40:48 AM
 #2

A chance-based game requires a random number generator. A common computer cannot generate truly random numbers without some strange device containing radioactive material.

Computer pseudo-random number generators use instead cryptographic functions and some external source of entropy to scrumble the sequence. Without the external source of entropy future numbers can be forseen by someone who knows internal state of the software.

Good sources of entropy are intervals between keystrokes on the keyboard, intervals between incoming network packets... everything that happens on the computer coming from outside it.

I don't know how SatoshiMines works.
HashEngineering
Sr. Member
****
Offline Offline

Activity: 345

Independent Cryptoveloper


View Profile WWW
October 29, 2013, 04:52:12 AM
 #3

Wow what an excellent question and answer.  Remember the random number bug found in the Bitcoin Android App?  Some one joked that the code for the Android random number generator was:

Code:
int randomNumber()
{
  return 4;
};

LOL.

GRS:  FrFpTbfEAni5Ruf8mNdwVQazJVJaQyEM2Y
BTC:  128Ptecsv4j6NoxdBxdvGzBtipfaAarZMJ
https://bitcointalk.org/index.php?topic=336215 - Android Wallet Creation Service
odolvlobo
Legendary
*
Offline Offline

Activity: 1974



View Profile
October 29, 2013, 07:14:29 AM
 #4

Wow what an excellent question and answer.  Remember the random number bug found in the Bitcoin Android App?  Some one joked that the code for the Android random number generator was:
Code:
int randomNumber()
{
  return 4;
};

This is what you are referring to:



The Android situation was not this, but it was almost as bad.

Buy bitcoins with cash from somebody near you: LocalBitcoins
Join an anti-signature campaign: DannyHamilton's ignore list
HashEngineering
Sr. Member
****
Offline Offline

Activity: 345

Independent Cryptoveloper


View Profile WWW
October 29, 2013, 07:23:19 AM
 #5

Yes, that is it!

GRS:  FrFpTbfEAni5Ruf8mNdwVQazJVJaQyEM2Y
BTC:  128Ptecsv4j6NoxdBxdvGzBtipfaAarZMJ
https://bitcointalk.org/index.php?topic=336215 - Android Wallet Creation Service
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!