24 Sep '12, 8pm

Dissectiong the Bitcoin Double Spend Attack

Dissectiong the Bitcoin Double Spend Attack

Dissectiong the Bitcoin Double Spend Attack A paper has recently surfaced entitled "Two Bitcoins at the Price of One? Double-Spending Attacks on Fast Payments in Bitcoin" which purports to have successfully crafted fraudulent double-spend transactions. It's an amazing paper and the vulnerability it discloses is a big deal - it's also 17 pages long and filled with enough arcane-looking math to make your head spin. This is an extremely important subject to understand since it changes the way merchants should look at unconfirmed Bitcoin transactions and the educated opinions of users will determine how we should move forward. This paper may be an erudite 17 page masterpiece, but useful to the average user it ain't. Let's see if we can simplify things, shall we? Let's start by defining what it means to "double-spend." Let's say we're in a gold-based economy (wishful thinking, ...

Full article: http://codinginmysleep.com/bitcoin-double-spend/

Tweets

Better security for the internet currency Bitcoin

ethlife.ethz.ch 24 Sep '12, 6am

More and more we use the internet for payments. But there are still some security problems to be solved. Scientists of the...

Taxizen of Herefordshire, UK, now accepts Bitcoin. First Taxi service where bitcoins pay the fare: #Bitcoin

Taxizen of Herefordshire, UK, now accepts Bitco...

taxizen.co.uk 26 Sep '12, 11pm

Welcome to Dan Hart’s taxi site wherein you will find useful information regarding my taxi services. Wifi hotspot! My taxi...

The Bitcoin Times is out! ▸ Top stories today v...

paper.li 23 Sep '12, 9am

You are using an old version of <strong>Internet Explorer</strong>. To view Paper.li correctly please <a href="http://www....

Had to step into the fray. A new post on Bitcoi...

moneydick.com 25 Sep '12, 4am

I was hoping that I wouldn’t have to write this, but it just keeps happening. Bitcoin — the most successful electronic cur...

First ever feature length film for #bitcoin #FZ...

feedzebirds.com 26 Sep '12, 8pm

FeedZeBirds pays you automatically for retweeting sponsored messages. Payouts occur using Bitcoin, which is a new digital ...

#bitcoin

bitcoin.org 24 Sep '12, 7am

Bitcoin is an experimental new digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin us...

SHA-3 about to be announced, but SHA-2 still lo...

schneier.com 24 Sep '12, 2pm

A blog covering security and security technology. « Friday Squid Blogging: Beached Firefly Squid | Main September 24, 2012...

Stealing Bitcoins the Hard(est) Way by @KJ6CCZ ...

codinginmysleep.com 30 Sep '12, 2am

To put all these big numbers another way: Bitcoin uses the same sorts of encryption and intractable math problems for its ...

#Bitcoin made a big splash in the MintChip challenge - so why won't they acknowledge our entry?

#Bitcoin made a big splash in the MintChip chal...

codinginmysleep.com 24 Sep '12, 11pm

While Bitcoin has been attempting to bring money into the modern age, it hasn't been alone. The Royal Canadian Mint has be...

Goss will pull double duty for Northwestern, Donald: Northwestern head coach Pat Goss will pull ... #sports #golf

Goss will pull double duty for Northwestern, Do...

golfweek.com 23 Sep '12, 3pm

The Northwestern men’s team will play two tournaments in one week at two historic golf courses, and visit one of the world...

Ethics&Tech Bitcoin - a Means for Redistributio...

ieet.org 27 Sep '12, 9am

This site is currently unavailable

Bitcoin 0.7.0 - Experimental digital currency.

Bitcoin 0.7.0 - Experimental digital currency.

macupdate.com 24 Sep '12, 5am

is an experimental new digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-...

James Turk on Bitcoin, Gold and Competitive Currencies: GoldMoney’s James Turk has released an interview with Fé...

James Turk on Bitcoin, Gold and Competitive Cur...

silverdoctors.com 23 Sep '12, 2pm

GoldMoney’s James Turk has released an interview with Félix Moreno de la Cova discussing currency competition and the pros...