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A Guide to 99% Fault Tolerant Consensus

Special thanks to Emin Gun Sirer for review We’ve heard for a long time that it’s possible to achieve consensus with 50% fault tolerance in a synchronous network where messages broadcasted by any honest node are guaranteed to be received by all other honest nodes within some known time period (if an attacker has more than 50%, they can perform a “51% attack”, and there’s an analogue of this for any algorithm of this type). дальше »

2018-8-9 04:03


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Unhackable? McAfee Hardware Wallet Uses Parts From ‘Cheap’ Smartphones

John McAfee and cryptocurrency hardware manufacturer Bitfi are facing heavy criticism after photos of the pair’s new wallet appeared online. ‘No Sign Of A Secure Element’ The Bitfi hardware wallet, which creators claim is “unhackable,” in fact runs off a standard motherboard common in “cheap” smartphones, social media users claim. дальше »

2018-7-30 18:00


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These Flaws Make Cryptocurrency Exchanges Susceptible to Attacks

It is a proven fact that the blockchain has an impressive 99. 64 percent reliability. However, the same can’t be said of cryptocurrency exchanges. Amidst that backdrop, Sameer Dixit, the Senior Director of Security Consulting at Spirent Communications, has identified some characteristic flaws of crypto exchanges which must be tackled to shield the over $350 billion cryptocurrency industry from more heists. дальше »

2018-7-20 07:00


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Op Ed: Addressing the Threat of Cryptomining Malware

One major class of attacks to hit the hacking landscape recently is cryptomining. While cryptomining on its own supports a good cause when being done consciously, it also allows nefarious actors to make a lot of money fast, and, with the sheer number of cryptocurrencies available to mine, it is becoming a popular choice for attackers. дальше »

2018-7-18 23:18


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Promoted: The Future of Online Shopping Is Powered by Spl.yt — A Decentralized E-Commerce Protocol

As a rapidly growing business sector, e-commerce continues to open up new avenues for exploring, comparing and purchasing products worldwide. Spl. yt, a smart contract protocol, aims improve the e-commerce system for buyers and sellers by automating functions currently performed by “middlemen” marketplaces like Amazon, eBay and Alibaba. дальше »

2018-7-16 19:45


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The Genesis Files: With Bit Gold, Szabo Was Inches Away From Inventing Bitcoin

As his Hungarian parents had fled post-war Soviet regime to settle in the United States, Nick Szabo came to call the Californian Bay area of the 1990s his home. Here, he was among the first to frequent the in-person “Cypherpunk” meetings organized by Timothy May, Eric Hughes and other founding members of the collective of cryptographers, programmers and privacy activists centered around the ’90s mailing list of the same name. дальше »

2018-7-13 17:16


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