Gas is a fee mechanism implemented by Ethereum to help with transactions. This fee is a fraction of the transaction presented in Wei, which is 10-12 of an Ether. Total fee price depends on the size of the smart contract and its functionality.Read More »How to Save Gas in your Ethereum Smart Contracts
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This is the third part of the Smart Contracts series where issues about smart contracts are broken into small chunks. All the examples were run in my local blockchain using Ethereum’s remix IDE. How does an overflow really occur?Read More »Exploit Integer Overflow and Underflows in Smart Contracts
Smart contracts are used by Ethereum to handle processed based on transactions. Many companies, banks and crypto enthusiasts use them for selling their services or products. Those contracts are written by developers and some of those contains vulnerabilities. One of those is the Visibility issue.Read More »Exploit and Remediate Function Visibility Vulnerabilities in Smart Contracts
Cryptocurrencies entered our daily life and got our attention around 5 years ago in 2016 when Bitcoin started booming. People use cryptocurrencies as an investment or as a gateway for anonymity but how big is their impact for the environment?Read More »Do Cryptocurrencies Destroy the Environment?
Cryptocurrencies become more and more relevant in our daily lives. We get bombarded with articles of “Bitcoin’s new high” combined with a picture of rockets taking off. Numerous people see cryptocurrencies as an investment and either hold their coins or do daily trades.Read More »Can cryptocurrencies replace fiat money?