Vesa Linja-ahon blogi: Small (con)test: hack my bitcoins ...

Ylen Aamu-tv: Bittiraha Bitcoin haastaa perinteiset valuutat (studiossa Vili Lehdonvirta ja Vesa Linja-aho)

Ylen Aamu-tv: Bittiraha Bitcoin haastaa perinteiset valuutat (studiossa Vili Lehdonvirta ja Vesa Linja-aho) submitted by linjaaho to Suomi [link] [comments]

The first brainwallet in the hacking contest was cracked - three more to go!

The first brainwallet in the hacking contest was cracked - three more to go! submitted by linjaaho to Bitcoin [link] [comments]

Bitcoin Utopia? Interest Is Sky High in This Euro Nation

submitted by linjaaho to VesaLinjaaho [link] [comments]

How to access Bitcoins from a Bitcoin address

I understand how Brainwallet works - you pick a long/unique pass phrase, it hashes your pass phrase using SHA256, then it's ran through an algorithm to create an address. In order to access the funds within that address you need to know the pass phrase.
Here's what I don't understand: how do I access the Bitcoins within that specific Bitcoin address?
I recently read this guy's contest to hack the Bitcoins from his five different addresses. Once I come up with a guess for his pass phrase how do I test it? Do I need some kind of software? Or can I hit a URL with the address and pass phrase and get notified whether I am granted access?
Yes, I am aware that there are no longer any Bitcoins within these addresses. I'm just curious how the process works.
submitted by Abundnce10 to Bitcoin [link] [comments]

Brainwallet Hunting Game

Hey fellow Bitcoiners! I have created a new game (inspired by this contest) that involves searching for Brainwallet passphrases in order to gain access to the BTC contained inside! The difference between the game and the contest that inspired it is that hints are given right at the start to make it easier to find the address. It's just in it's early stages, so please forgive the kinda noobish website. Please let me know what you think and what I can improve on! The site is CoinHunt.tk. Thanks in advance!
~T3KBAU5
submitted by T3KBAU5 to Bitcoin [link] [comments]

If a Python script scans 1500 passphrases/sec, how much faster is a CUDA program?

In my brainwallet hacking contest, with simple Python script one core can try 1500 passphrases/sec: http://linja-aho.blogspot.fi/2013/03/bitcoin-brain-wallet-cracking-contest.html
As I'm not a guru in HPC, I'm asking: how many times faster is a CUDA program for that application? My guess is about 100000 times (1000 times for replacing Python with C and 100 times for CPU -> multicore GPU).
submitted by linjaaho to hacking [link] [comments]

Tarkka73 - YouTube PERJANTAIN LINJA-AUTOT SEKÄ REKKALIIKENNE Bitcoin - Ylen aamu-tv 15.4.2013 Riippumaton Linja - YouTube Vesa Linja-aho: Ostaisinko sähköauton?

The file probably has been deleted. If you've got all required information, request undeletion providing this information and the link to the concerned file ([[:File:Bitcoin-qt-0.8.0-finnish.png]]). If you created the content yourself, enter {{Own}} as the source. If you did not add a licensing template, you must add one. Contest: Hack my bitcoins and keep them (linja-aho.blogspot.com) 87 points by shared4you on Mar 9, 2013 hide past web favorite 30 comments: brownbat on Mar 9, 2013. It's like a nano X Prize, seemingly aimed against pass phrases. Bitcoin wallet hacking is a really fun test case, because it begs people to acknowledge the opportunity costs involved in cracking. Cracking a wallet ... "I think every educated person knew that even before, but for skeptics the statement was good," Linja-aho said. Bitcoin prices surged nearly 360 percent over the past month to an all-time high of ... Bitcoin = open source cryptocurrency Bitcoin = distributed accounting system No central authority -> does not depend on trust to single or couple of institutions. Like cash, but for the internet 1 bitcoin = 50 euros (20th of Mar 2013). Created by pseudonym Satoshi Nakamoto Based on a peer-to-peer network of computers running the bitcoin software. The transactions are verified by proof-of- work ... Vesa Linja-aho klo 23.12. Kohteen lähettäminen sähköpostitse Bloggaa tästä! Jaa Twitteriin Jaa Facebookiin Jaa Pinterestiin. 33 kommenttia: Unknown 8. maaliskuuta 2013 klo 0.09. It isn't that the password is hard to crack, it is trying to get the name of the identifier :'(Vastaa Poista. Vastaukset. Vastaa. Jon 8. maaliskuuta 2013 klo 0.22. I didn't find your private keys but I found some ...

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Tarkka73 - YouTube

Bitcoin eli eräänlainen nettiraha hämmentää mieliä. Viime päivinä on nähty uutisia Bitcoinin rajusta arvonvaihtelusta - mutta yhtä rajusti vaihetelevat käsitykset sen hyödyllisyydestä ... LEVYTILA ON LOPPU.EDITOITUA HD LAATUA EI SEN TAKIA OLE KÄYTÖSSÄ. 10 x 2TB levyä pitäisi päivittää 3 TB jotta saisi taas vuodeksi HD käyttöön editoiduissa videoissa. Bitcoin Lahjoitukset ... POLIITTINEN KANNANOTTO JA HIILIDIOKSIDIPÄÄSTÖJÄ EI TULE.EIKÖS TÄMÄ SILLOIN OLE HYVÄ ASIA.PALATAAN IHMISKUNNAN ALKUJUURILLE JOSSA KULJEMME HEVOSILLA KIIREETTÖMÄSTI JA RAUHALLISESTI ... Ylen aamu-tv, ma 15.4.2013 Bitcoin eli eräänlainen nettiraha hämmentää mieliä. Viime päivinä on nähty uutisia Bitcoinin rajusta arvonvaihtelusta - mutta yhtä... Sähköautot yleistyvät kiihtyvällä tahdilla. Kesällä 2015 täyssähköisiä autoja oli rekisterissä jo lähes 700 – määrä on peräti kaksinkertaistunut sitten edelliskesän ...

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