Jump Oriented Programming: Ethereum Smart Contract #2 – Real World CTF 2018

Jump Oriented Programming: Ethereum Smart Contract #2 – Real World CTF 2018

In the first video I talked about how I approached this challenge and some of the thoughts andideas I had.I’d like to emphasize again that I worked on this for both days of the CTF, so I cannotinclude every small detail and struggle I had, but I hope I showed the important steps.At some point […]

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DApps on Bitcoin Blockchain? QTUM Blockchain Explained | Blockchain Central

DApps on Bitcoin Blockchain? QTUM Blockchain Explained | Blockchain Central

Hey everybody and welcome to another episode of BLOCKCHAIN CENTRAL!In today’s video, we’ll take a closer look at Qtum.Qtum has two goals.First, it is a blockchain that attempts to link existing crypto currencies and make them interchangeable.Second, Qtum – is a new cryptocurrency that uses its profits to develop that blockchainQtum’s developers call it “a […]

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The History of Ethereum

The History of Ethereum

after Satoshi released Bitcoin to the world in 2008 a community of blockchaindevelopers and researchers started to take shape around it many developerscontributed to the open source development of Bitcoin several magazinesand online blogs also started to appear writing about interesting projects andnew ideas in the space one of the members of this community was […]

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The History of Ethereum

after Satoshi released Bitcoin to the world in 2008 a community of blockchaindevelopers and researchers started to take shape around it many developerscontributed to the open source development of Bitcoin several magazinesand online blogs also started to appear writing about interesting projects andnew ideas in the space one of the members of this community was […]

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Ethereum Smart Contract Backdoored Using Malicious Constructor

Ethereum Smart Contract Backdoored Using Malicious Constructor

In this video I want to specifically talk about the interesting backdoor technique thatwas used in the Acoraida Monica smart contract, which was a CTF challenge from the Real WorldCTF finals.I have already created two videos where I go over my attempts at solving the challengeand then eventually walk through the solution.However I did not […]

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Ethereum Name Service Explained

Ethereum Name Service Explained

(tonal music)– In this lesson we’re going to learn about ENS,or Ethereum Name Service, and how it helps us provide morehuman readable names for our dapps.ENS is a project within the Ethereum dev community,whose goal is to create a decentralized domainname registry for the decentralized web.Today, we use DNS servers to resolve our dot comdomain […]

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Ethereum Smart Contract Code Review #1 – Real World CTF 2018

Ethereum Smart Contract Code Review #1 – Real World CTF 2018

When the CTF started we looked at the challenges and I already suspected, just because it’sin-style right now, that there could be an ethereum smart contract challenge.And there was!Acoraida Monica.So I didn’t even look at the rest and just decided to go for it.In the end I didn’t solve the challenge during the two days […]

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