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Blockchain

Preventing re-entrancy attacks in Solidity

Re-entrancy is a vulnerability in smart contracts that can result in unexpected behavior and loss of funds. This vulnerability enables an attacker to execute a function call repeatedly before the original call has completed. Therefore, re-entrancy can change the contract’s state in unforeseen ways and trigger unintended operations. This can lead to significant security risks, […]
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Blockchain

Understanding Signature Replay in Solidity: A Comprehensive Guide

When developing smart contracts on the Ethereum blockchain, it’s essential to consider potential security vulnerabilities in order to make the contract safe. One important vulnerability comes from is signature replay attacks, which can result in malicious actors gaining unauthorized access to contract functions. The aim of this article is to explain what these attacks are […]
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Blockchain

Self Destruct in Solidity: A Guide

First of all, this function is going to be deprecated in the newer versions of Solidity. With that said, let’s talk about this powerful feature, which can be used to destroy a smart contract, freeing up storage on the blockchain. While it can be a useful tool, it can also be dangerous if not used […]
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Blockchain

Preventing Denial of Service Attacks in Solidity

Solidity security is a critical concern for anyone building smart contracts on the Ethereum blockchain. One of the biggest security risks for contracts is the potential for Denial of Service (DoS) attacks. Malicious users can intentionally cause a smart contract to consume more resources than intended, or make it unresponsive, unavailable or cause calls to […]
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Blockchain

Ethereum Tokens & Token Standards – Explained

Blockchain development transformed the way businesses operate. While cryptocurrency coins play an integral role as an investment asset, equally important and useful are the tokens.
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Blockchain

Ethereum PoS – The Merge

There’s been a lot of buzz around the Ethereum Merge – the mainnet merging with the Beacon Chain; the move to the Proof-of-stake consensus mechanism.  And finally, on September 15, 2022, it happened. This blog post delves into what Ethereum merge is, its benefits, and more. Let’s get started. What is Ethereum Merge? Until some […]
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Bitcoin

Infuy as a speaker in DeveloperWeek (San Francisco, USA)

On the first days of February the DeveloperWeek conference (https://www.developerweek.com) was held in San Francisco, about DeveloperWeek 2018 is the world’s largest developer expo and conference series with over 8,000 participants across the DeveloperWeek 2018 Conference & Expo, the DeveloperWeek Hackathon, Official Hiring Mixer, andcity-wide partner events. This conference puts the spotlight on new dev […]
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Bitcoin

Press Release – El País

Blockchain, the Bitcoin technology that changes paradigms Interview with Alejandro Narancio about Blockchain and Cryptocurrencies.Unalterable, decentralized and transparent, this tool promises to revolutionize several business industries; In Uruguay, some companies are beginning to develop products and explore niches. When Satoshi Nakamoto (whose whereabouts and true identity are unknown) created Bitcoin in 2008, many people recognized […]
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Bitcoin

Second Blockchain Meetup

 On July 14th we had our second meetup! Topics The agenda had two main topics Practical uses from bitcoin, what is it? , use of exchanges, how to trade?, private and public keys and something of altcoins given by Fatima. Real example of project based on Hyperledger fabric, Smart contracts, and real examples of source-code currently […]
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Bitcoin

First Montevideo Blockchain Meetup

. Uruguay is creating capabilities and starting projects in Distributed Ledger Technologies. Monday sunset witnessed a group of people meeting to talk about distributed ledger technologies in a rooftop very close to the Catholic University in Montevideo. In fact, Alejandro Narancio, a seasoned architect and software developer for more than 15 years, who runs a […]
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