A bug which allows unlimited creation of coins was found and fixed in ZeroCash. It is a sophisticated and subtle security flaw. We read that: To exploit the counterfeiting vulnerability, an attacker would have needed to possess information found in the large MPC protocol transcript that was made available shortly after the launch of Zcash. …
Continue reading ‘ZeroCash was broken, and nobody have noticed’ »
George Soros decided in his old days to pick up a new fight. Let us be clear about who is George Soros. This man represents simultaneously what is the best and what is possibly the worst, inside our barely democratic Western pseudo-liberal but generally still rather free world (for now). Wisdom and great intelligence, great sensibility …
On January 3rd we celebrate 10 years since bitcoin network started operation. Long live all crypto currencies, especially those which actually are real innovators, and bring new technology such as advanced crypto techniques to the market. Let a thousand crypto flowers bloom. P.S. It is also 20 years and 2 days after the introduction of …
Spontaneous discrete protest movement of an individual against the mafias which are in charge of cyber-security, cryptography research and education at large worldwide. Students asked me what is my protest against and I have responded: It is against hate. All the hate you receive because you are different and you don’t have the same ideas …
I have written an elementary tutorial and a first proof of concept about how to backdoor a block cipher in a quite general setting. Potentially it applies to any block cipher. Success is not guaranteed though, see the paper. ADDED 2 JAN 2019: a new paper shows that invariants of higher degree are substantially more powerful. …
A web page shows that many crypto currencies lack protection against 51% attacks. For example to double spend in Dash, one needs to pay only 14K$ per hour. To double spend in bitcoin private, 1000$ will suffice. And course benefits of double spending can easily outweigh the costs. In addition some of the higher numbers are questionable. There …
These companies (Facebook, Google, etc) known as Internet Giants violate our privacy everyday and they have corrupted our minds and our economy worldwide. They have built a totalitarian dystopian future which is here already, where humans and business alike are enslaved by a digital mafia which aims at controlling and taxing the whole global economy through mass surveillance and …
All owners of EOS must take these steps before June 1st, or they will lose their tokens [they will fail to transfer to the new blockchain]. US citizens are apparently unable to hold EOS tokens legally. 5 billion dollars is at risk of loss at the moment.
Written by UCL student Maxine Emuobosa: Beginners Guide. And here is another one made by UCL student Killian Davitt.
Professor Tomalczyk has educated 166 finalists of high school mathematical olimpiads in Poland.