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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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Etherscan rushes to plug vulnerabilities following strange hacking attempts overnight

Etherscan, the most widely used Ethereum blockchain explorer, has quickly patched security vulnerabilities overnight as hackers exploited certain parts of its service. Hackers successfully manipulated the Disqus API – a third-party service used by Etherscan that allows for comments to be left on Ethereum wallet addresses. дальше »

2018-7-24 13:00


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