Cardano is secure against fake stake attacks
Peer-reviewed design means Ouroboros is free from a flaw affecting many proof-of-stake blockchains
29 January 2019 6 mins read
Ada is not among the 26 cryptocurrencies identified by US researchers last week as being vulnerable to ‘fake stake’ attacks.
1 The Cardano blockchain underlying Ada is based on proof-of-stake (PoS), but its Ouroboros protocol uses no bitcoin code and is not affected by the PoSv3 problem.2 This is not just good luck, but a consequence of the thorough, formally-verified approach…
An in-depth look at quickcheck-state-machine
28 January 2019 46 mins read
Please note: this post originally appeared on the Well-Typed blog. Stateful APIs are everywhere: file systems, databases, widget libraries, the list goes on. Automated testing of such APIs requires generating sequences of API calls, and when we find a failing test, ideally shrinking such a sequence to a minimal test case. Neither the generation nor the shrinking of such…
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