João Paulo MoraisLearn Ethereum in 2024. #17. Gas and gas fee.The gas fee is a charge in Ether required to execute transactions and alter the state of the Ethereum network. This fee serves multiple…May 28May 28
João Paulo MoraisLearn Ethereum in 2024. #16. Wallets in ethers.jsIn this hands-on chapter, we’ll delve into wallets and accounts using the ethers.js JavaScript library. While not all methods demonstrated…May 14May 14
João Paulo MoraisLearn Ethereum in 2024. #15. Wallets.In the blockchain field, beginners often confuse accounts with wallets. As we’ve discussed, an account consists of a pair of keys and is…Apr 27Apr 27
João Paulo MoraisLearn Ethereum in 2024. #14. Accounts.To discuss Ethereum accounts, let’s first recall the concept of the Ethereum state. Defining the Ethereum state precisely isn’t…Apr 14Apr 14
João Paulo MoraisLearn Ethereum in 2024. #13. Digital signature in Ethers.In the last article, we explored how to generate the hash of a message of arbitrary size using the keccak256 function in ethers, as well as…Apr 8Apr 8
João Paulo MoraisLearn Ethereum in 2024. #12. Hash in ethers.js.In the previous two articles, we delved into the theoretical aspects of hash functions and asymmetric encryption. Now, it’s time to put…Apr 6Apr 6
João Paulo MoraisLearn Ethereum in 2024. #11. Public-Key Cryptography.Public key cryptography, also known as asymmetric cryptography, encompasses cryptographic primitives used for various purposes, including…Apr 3Apr 3
João Paulo MoraisLearn Ethereum in 2024. #10. Hash functions and Ethereum.Many still have the idea that encryption is limited to encrypting texts that can only be deciphered using a secret key. In fact…Mar 26Mar 26
João Paulo MoraisLearn Ethereum in 2024. #9. Types of Ethereum nodes.Participants in the Ethereum network are commonly referred to as nodes. To operate as a node, two essential pieces of software are…Mar 23Mar 23
João Paulo MoraisLearn Ethereum in 2024. #8. Forks and finality.Ethereum’s ledger consists of a chain of blocks, structured by the inclusion of the hash of the preceding block in the header of the…Mar 18Mar 18
