This blog post will guide you through the process of forking a substrate blockchain like Polkadot. Substrate does not offer any forking capabilities out of the box but we can still create a “fork” relatively easily. I created a small script to make the process much easier, you can find the script here. How does …
This article kicks off a series of technical Substrate articles that I have planned. I will be discussing various specifics of Substrate in these articles that will help developers building on top of Substrate understand Substrate better. The topic for this post is Substrate’s Imbalances. Background The balances module of Substrate’s FRAME runtime maintains a …
This is the story of a simple bug in the FRAME runtime of Parity’s Substrate blockchain framework. The bug allowed attackers to do infinitely large transactions without paying any extra fees. The vulnerability was the result of a buggy implementation of fee calculation in the FRAME runtime of Substrate. By exploiting this vulnerability, an attacker …
Free blockchain storage – Tale of a bug in Substrate’s FRAME runtime Read More »