Cryptocurrency

Onward from the Hard Fork

The foundation has committed to support the community consensus on the admittedly difficult hard fork decision. Seeing the results of various metrics, including carbonvote, dapp and ecosystem infrastructure adoption, this means that we will focus our r…

Onward from the Hard Fork

The foundation has committed to support the community consensus on the admittedly difficult hard fork decision. Seeing the results of various metrics, including carbonvote, dapp and ecosystem infrastructure adoption, this means that we will focus our r…

Hive: How we strived for a clean fork

The DAO soft-fork attempt was difficult. Not only did it turn out that we underestimated the side effects on the consensus protocol (i.e. DoS vulnerability), but we also managed to introduce a data race into the rushed implementation that was a ticking…

Hard Fork Completed

We would like to congratulate the Ethereum community on a successfully completed hard fork. Block 1920000 contained the execution of an irregular state change which transferred ~12 million ETH from the “Dark DAO” and “Whitehat DAO” contracts into the W…

To fork or not to fork

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 …

How to build server less applications for Mist

Ethereum is not meant to be a platform to build esoteric smart contract applications that require a STEM degree to understand, but it aims to be one pillar of a different architecture for applications on the world wide web. With this post we will try t…

Taylor’s Summer Update

Hey everyone, I spent some time with our Canadian friends in Toronto after presenting “Ethereum: The World Computer” at Blockchain Training Conference last month and I wanted to provide a quick update on some of the exciting happenings in the Ethereum …

C++ DEV Update – July edition

Since the last C++ DEV Update, a lot of things happened in the engine room which were not really visible to the outside. This post wants to give an overview about what we are currently working on. Apart from the features side, Bob has been working on …

The Devcon2 site is now live!

The Devcon2 web site is officially live now! You can find it at https://ethereumfoundation.org/devcon/ Thanks for everyone’s interest, proposals, support and enthusiasm. We have an amazing community and are excited to present the first Ethereum Founda…

Security Alert – DoS Vulnerability in the Soft Fork

Affected configurations: geth 1.4.8 Likelihood: High Severity: High Details: An attack vector has been identified in the freshly released implementation of the DAO soft fork. The fork enactment code in geth (and other clients) allows execution of E…

DAO Wars: Your voice on the soft-fork dilemma

The last week was quite hectic for all of us in the Ethereum ecosystem. The DAO has shown us that it takes much more effort to write smart contracts than we originally anticipated; but also that it takes a surprising amount of debate to reach a consens…

Thinking About Smart Contract Security

Over the last day with the community’s help we have crowdsourced a list of all of the major bugs with smart contracts on Ethereum so far, including both the DAO as well as various smaller 100-10000 ETH thefts and losses in games and token contracts. T…

CRITICAL UPDATE Re: DAO Vulnerability

An attack has been found and exploited in the DAO, and the attacker is currently in the process of draining the ether contained in the DAO into a child DAO. The attack is a recursive calling vulnerability,

Smart Contract Security

Solidity was started in October 2014 when neither the Ethereum network nor the virtual machine had any real-world testing, the gas costs at that time were even drastically different from what they are now. Furthermore, some of the early design decision…

Go Ethereum’s JIT-EVM

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 powe…

Security Alert – cpp-ethereum keeps accounts unlocked

Affected configurations: cpp-ethereum (eth, AlethZero, …) version 1.2.0 up to 1.2.5 (fixed in 1.2.6) Note: Neither “geth” nor “Mist” nor the “Ethereum Wallet” (unless explicitly used together with cpp-ethereum) are affected by this, they lock account…