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AuthorJeffrey Wilcke
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Jeffrey Wilcke

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The Ethereum network is currently undergoing a DoS attack

Posted on September 22nd, 2016.

URGENT ALL MINERS: The network is under attack. The attack is a computational DDoS, ie. miners and nodes need to spend a very long time processing some blocks. This is due to the EXTCODESIZE opcode, which has a fairly low gasprice but which requires nodes to read state information from disk; the attack transactions are […]

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Security

Security alert – All geth nodes crash due to an out of memory bug

Posted on September 18th, 2016.

Security Alert Affected configurations: Geth Likelihood: High Severity: High Summary: geth nodes running out of memory and crashing on block https://etherchain.org/block/2283416 Details: TBD Solution: Geth 1.4.12 was released. Please update ASAP.

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announcement

To fork or not to fork

Posted on July 15th, 2016.

The DAO, though not a product developed by the Ethereum Foundation, has been a hot topic as of late, both internally in the organisation as well as within our community. The Hard Fork is a delicate topic and the way we see it, no decision is the right one. As this is not a decision that […]

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Go Ethereum’s JIT-EVM

Posted on June 2nd, 2016.

The Ethereum Virtual machine is kind of different than most other Virtual Machines out there. In my previous post I already explained how it’s used and described some of its characteristics. The Ethereum Virtual Machine (EVM) is a simple but powerful, Turing complete 256bit Virtual Machine that allows anyone to execute arbitrary EVM Byte Code. The go-ethereum project […]

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Security

Security Alert – Geth suffers from a very low probable DoS attack vector – Update immediately

Posted on May 17th, 2016.

Affected configurations: All Go client versions  Likelihood: Very low Severity: High Details: A bug in Geth (and potentially other clients) may suffer from a DoS attack and allows remote attackers to stall synchronisation process almost indefinitely by supplying a valid, lighter chain. More information will be given out a later time including the report that was submitted through the bug […]

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announcement

Homestead Release

Posted on February 29th, 2016.

Update: We’ve released version 1.3.5 including networking hotfix for homestead 1.3.4.  Development of Ethereum started in December 2013 when two developers and a college dropout researcher decided to put their heads together and develop this amazing piece of technology. We were later joined by many like-minded individuals. Our first Proof of Concept (PoC) came on February […]

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dev update

Jeff’s Ethereum ÐΞV Update II

Posted on January 6th, 2015.

First of all, happy new year! What a year it has been. With a little luck we’ll surpass last year with an even more awesome year. It’s been too long since I’ve given an update on my side of things and that of the Go team and mostly due to a lack of time. I’ve been so […]

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dev update

Jeff’s Ethereum ÐΞV Update I

Posted on November 2nd, 2014.

I thought it was about time I’d give an update on my side of things for those interested in knowing how we’re doing on the Dutch side. My name is Jeff, a founder of Ethereum and one of the three directors (alongside Vitalik and Gavin) of Ethereum ÐΞV, the development entity building Ethereum and all the […]