Ethereum 2.0 Phase 0 Testnet to be Launched

Coin transfer option is not available to users, there are no smart contracts and functionality associated with the Ethereum virtual machine
08 May 2019   1021

Prysmatic Labs has launched a test network for Ethereum 2.0 based on the Casper PoS protocol with staking support. The developers implemented the fourth version of the specifications for the main chain from the Ethereum Research team.

So, in order to run the validating node, you need to install the Prysm client, which is the only one for this network, and create a steak by sending Goerli testnet coins (3.2 ETH) to the new network.

Note that at the moment a limited number of validators can participate in the network. Also, the coin transfer option is not available to users, there are no smart contracts and functionality associated with the Ethereum virtual machine.

Earlier Buterin announced the Ethereum 2.0 or Serenity. This upgrade involves a transition to the Proof-Of-Stake (Casper) algorithm, the implementation of sharding (multiple parallel chains connected to the main one, for executing various smart contracts and ensuring decentralized applications), updating the virtual machine (EWASM), changing the cross-contract logic and economics of the protocol.

Potentional Vulnerabilities Found in ETH 2.0

Least Authority have found potentional security issues in the network P2P interaction and block proposal system
26 March 2020   986

Technology security firm Least Authority, at the request of the Ethereum Foundation, conducted an audit of the Ethereum 2.0 specifications and identified several potential vulnerabilities at once.

Least Authority said that developers need to solve problems with vulnerabilities in the network layer of peer-to-peer (P2P) interaction, as well as in the block proposal system. At the same time, the auditor noted that the specifications are "very well thought out and competent."

However, at the moment there is no large ecosystem based on PoS and using sharding in the world, so it is impossible to accurately assess the prospects for system stability.
Also, information security experts emphasized that the specifications did not pay enough attention to the description of the P2P network level and the system of records about Ethereum nodes. Vulnerability risks are also observed in the block proposal system and the messaging system between nodes.

Experts said that in the blockchains running on PoS, the choice of a new block is simple and no one can predict who will get the new block. In PoS systems, it is the block proposal system that decides whose block will fall into the blockchain, and this leads to the risk of data leakage. To solve the problem, auditors suggested using the mechanism of "Single Secret Leader Election" (SSLE).

As for the peer-to-peer exchange system, there is a danger of spam. There is no centralized node in the system that would evaluate the actions of other nodes, so a “malicious" node can spam the entire network with various messages without any special punishment. The solution to this problem may be to use special protocols for exchanging messages between nodes.