Ethereum archivos - Decentralized Security

Understanding Precision Loss in Solidity

ByMarco López 06/05/202506/05/2025

When dealing with Solidity, precision loss is one of those subtle yet devastating issues that can sneak into your code unnoticed—until it’s too late. A tiny miscalculation can cascade into major financial discrepancies, potentially draining funds, misallocating rewards, or even opening doors to exploits. Understanding how and why this happens is critical for writing secure and reliable smart contracts.

But why does Solidity even have precision issues in the first place?

Securing Ethereum’s Clients: Our Open-Source Approach to BLS-HSMs

ByMarco López 29/04/202530/04/2025

In August 2022, we shared our initial efforts to develop a modular, open-source Hardware Security Module (HSM) platform tailored for blockchain environments. Today, we are excited to update the community on the progress we’ve made, and why this work is more relevant than ever.

Ethereum

EIP-7702: Ethereum’s Next Step Toward a More Flexible Account Model

ByMarco López 03/04/202522/04/2025

Externally Owned Accounts (EOAs) and smart contracts in Ethereum have traditionally been distinct: EOAs are controlled by private keys and can initiate transactions, while smart contracts can execute code when triggered but cannot initiate transactions. EIP-7702 bridges this gap by allowing EOAs to execute code, effectively blurring the lines between them and smart contracts.

Ethereum | Hardware | Open Source

BLS-HSM for Ethereum: Enhancing Validator Key Security

ByMarco López 12/08/202222/04/2025

One of the most critical security challenges in blockchain networks is protecting cryptographic keys. While hardware wallets provide a robust solution for individual users, securing validator keys in Ethereum’s consensus layer requires a different approach. Hardware Security Modules (HSMs) are commonly used in secure environments to protect private keys and execute cryptographic operations without exposing sensitive material.