Someone has duped bZx once again (second time in one week). This time, the hacker got away with a lot more. The hacker seems to have gotten away with more than 2378 ETH, which is equivalent to 635k USD at current prices. The hack was very similar to the last hack and executed in a single transaction on …
bZx Hacked Again! Hacker made more than 2378 ETH – Analysis Read More »
As you might have already heard, bZx (Fulcrum) has been “hacked”. The hack was executed in a single tranaction that happened on February 15, 2020. How it went down The hacker took a flash loan of 10k ETH from dy/dx that they have to pay back at the end of the transaction. The hacker exchanged …
In this post, I will be sharing my recent experience of setting up a load-balanced internet connection and my learnings from it. TL; DR: Load balanced internet connection is not the smartest idea; you might be better off with a failover based setup. Back here in India, no ISP is super reliable. However, the internet …
Rust is a systems programming language that is being developed with safety and speed as its primary goals. It is a highly concurrent modern language with a fast-growing community. Developer surveys like “Stack Overflow Developer Survey” where it has been voted “the most loved language” for four years in a row show the support Rust …
Note: This post is based on the lightning talk I gave at Devcon 5 on the same topic. The slides for that talk can be downloaded from here. What are mixing based privacy mechanisms? There are various coin mixing mechanisms like CoinJoin (used by the Wasabi wallet), Ring signatures (used by Monero) and the minimal …
Mixing based privacy mechanisms are insufficient Read More »
Devcons are always a unique experience since they bring the ethereum community to a commonplace. It’s not the venue that makes devcons so special. It’s the people! This is the first post of my Devcon post series. This post talks about how the event was in general. I’ll soon be writing another blog post that …
ETH India is Asia’s biggest Ethereum Hackathon and the second installment of it just took place in Bangalore, India from 2nd August to 4th August. I decided to participate in the Hackathon as a hacker with my colleague Satyam and a college friend Saad. There, we created an open reputation protocol – Credeth. We ended …
When a revert happens in solidity, all the state changes done in that transaction are rolled back. All the changes done in sub calls are also rolled back. If we called a contract A which in turn tried to do a token transfer in contract B but contract B reverts, all the changes done by …
Try Catch in Solidity: Handling the revert Exception Read More »
Solidity is a special language with many little quirks. A lot of things behave differently in Solidity than most other languages as Solidity is created to work on the EVM with its limited feature set. I wrote a blog post with ten tips to save gas in Solidity a few months back and it got a great …
Solidity tips and tricks to save gas and reduce bytecode size Read More »
The Görli testnet The Görli testnet is the first cross-client proof-of-authority network for Ethereum. It is based on the Clique PoA protocol. It was launched on 31 January 2019 at the GörliCon. The development is led by Chainsafe Systems + Afri Schoedon from Parity but there are dozens of more contributors that helped in making …