You can create key pairs manually by throwing dice, if you want...
How can I do it?
Topic: How bitcoin-qt generate address and how do I know they are really random? (Read 1122 times)
December 04, 2013, 01:55:22 PM
How can I do it?
December 04, 2013, 11:24:51 AM
You can create key pairs manually by throwing dice, if you want...
December 04, 2013, 03:40:19 AM
go to http://bitaddress.org/, use the "brainwallet" option.
inb4 inevitable "MY BRAIN WALLET WAS HACKED!"
I realize you're joking there, as you've indicated with your small text. But a lot of users are really confused by this stuff and will actually do this, and over and over again they get robbed.inb4 inevitable "MY BRAIN WALLET WAS HACKED!"
Desktop computers are actually quite good sources of randomness. They monitor the precise timing between keypresses, mouse movements, disk seeks, network packets, and other sources of enviromental nodes and then they combine this data into randomness pools which are stored by cryptographic hashes so that even if most of the data that goes in is unpredictable, so long as there is only a few hundred bits of actual randomness that makes it in all the output is at least computationally sound.
Bitcoin-qt retains its own randomness pool— really the openssl code— and augments it with further entropy from timing and, on windows, a screenshot at startup.
December 04, 2013, 03:38:28 AM
but computer can not generate reall random numbers.. Is there a way to create a bitcoin address that is connected to something I add .. like a string that I can add..?
go to http://bitaddress.org/, use the "brainwallet" option.inb4 inevitable "MY BRAIN WALLET WAS HACKED!"
using a online website to create an address.. Really?
December 04, 2013, 02:20:56 AM
but computer can not generate reall random numbers.. Is there a way to create a bitcoin address that is connected to something I add .. like a string that I can add..?
Computers generate "better" random numbers than humans so leave it be.
December 03, 2013, 06:30:46 PM
but computer can not generate reall random numbers.. Is there a way to create a bitcoin address that is connected to something I add .. like a string that I can add..?
go to http://bitaddress.org/, use the "brainwallet" option.inb4 inevitable "MY BRAIN WALLET WAS HACKED!"
December 03, 2013, 06:27:54 PM
ask the core devs.
December 03, 2013, 06:25:16 PM
but computer can not generate reall random numbers.. Is there a way to create a bitcoin address that is connected to something I add .. like a string that I can add..?
December 03, 2013, 06:21:27 PM
I guess the random part comes from the OpenSSL lib:
Code:
#include
December 03, 2013, 06:17:40 PM
any info about EC_KEY_regenerate_key(..) What is the seed that it gets? from where the random part. the pc is only pseudo random
December 03, 2013, 06:08:01 PM
How bitcoin-qt generate address and how do I know they are really random?
Thanks.
Thanks.
it's Open Source. this means the source code is not a secret and you can assume it is reviewed serveral times from different parties.
https://github.com/bitcoin/bitcoin/blob/master/src/key.cpp
December 03, 2013, 05:57:45 PM
How bitcoin-qt generate address and how do I know they are really random?
Thanks.
Thanks.
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