Posts Tagged Bitcoin
Can financial privacy coexist with regulation?
Posted by SDLerner in Uncategorized on July 30, 2013
I’m not an economist nor an IRS employee, but I know one thing: the day an anonymous cryptocoin (such as ZeroCoin or AppeCoin) becomes widespread, governments won’t stand idly by. Something is obvious: governments agencies want the money flow to be as clear as possible. They say it’s required to track terrorism financing, tax evasion, […]
Buggy CVE-2013-4627 patch, open new vectors of attack
Posted by SDLerner in Uncategorized on July 18, 2013
Secure coding is hard. But in Bitcoin, secure coding also means understanding every little detail of the undocumented (or code-documented) rules that Satoshi the great has brought to us mortals. CVE-2013-4627 patches a DoS vulnerability discovered by Peter Todd. The vulnerability is easy to spot once you read the code after the patch was applied. […]
The Bitcoin Eternal Choice for the Dark Side Attack (ECDSA)
Posted by SDLerner in Uncategorized on June 26, 2013
Warning: This post is a mere speculation. There are many unknowns that may change the ending of this story, but nevertheless, an attack like this, that tries to divide the Bitcoin community, undermining the moral of each user, sounds quite probable to me. But I love Bitcoin, I’m optimistic and I wish Bitcoin a great future. […]
More Privacy Vulnerabilities in Bitcoin
Posted by SDLerner in Uncategorized on May 31, 2013
If you plan to stay anonymous while using Bitcoin, then you have to take many precautions, and you may even have to compile your own fork of the Satoshi client. During the Bitcoin Conference 2013 (which, BTW, was terribly fun), I found two new problems with Bitcoin privacy. I call them “vulnerabilities” but you may […]
P2PTradeX, back from the future
Posted by SDLerner in Uncategorized on May 20, 2013
Almost one year ago I described in the Bitcoin technical forums a new P2P virtual coin trading protocol (so called P2PTradeX) I had implemented for an alternate cryptocoin, mostly as a proof of concept. The idea got some attention, but nobody really needed that stuff. It was before it’s time. Yesterday I was at Bitcoin […]
Satoshi ‘s Fortune: a more accurate figure
Posted by SDLerner in Uncategorized on April 24, 2013
Since yesterday, my post was read 30k times in just one day. So a lot of people started asking me how precise was my analysis, since I had estimated the figure just by looking at the graph. People want a more rigorous analysis. Today I carefully masked all blocks that were not part of Satoshi […]
More on block mining history: 1st half of 2010
Posted by SDLerner in Uncategorized on April 17, 2013
This post is a follow up of my previous post. I’m showing another interesting graph. It shows how Satoshi mining pattern disappears in approximately MAY 2010. Click on the image to see it clearer.
The Well Deserved Fortune of Satoshi Nakamoto, Bitcoin creator, Visionary and Genius
Posted by SDLerner in Uncategorized on April 17, 2013
I won’t discuss anything in this post. I’m tired of discussing technical things with people with skewed opinions and monetary interest. I’ve talked enough in the Bitcointalk forum about Satoshi. Some people screamed at me. But a picture is worth a thousand words. And I will show pictures that everyone can replicate. Please forgive me for the […]
CVE-2012-3789 disclosure
Posted by SDLerner in Uncategorized on January 8, 2013
Given that update ratio from 0.6.2 to 0.6.3+ has probably passed the 80% (*) barrier for a long time, I decided to publish the full CVE-2012-3789 vulnerability report, since that is my obligation with the community. https://en.bitcoin.it/wiki/CVE-2012-3789 I encourage those who are working in the Satoshi client to peer review the report. Also I suggest […]
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