Absolute Coin is updating its wallet

The next version of the Absolute Coin wallet with an increased Master Node collateral on July 21
28 June 2018   1115

Absolute Coin wallet version 12.2.3a will be released on July 21. The update is going to feature the following:

  • Master Node collateral increase to 2,500 ABS;
  • Sentinel upgrade to v1.2;
  • mncache issue fix

For the Sentinel (a governance, policing and reporting service which looks after the Master Nodes on the network) upgrade process a separate guide will be release so that users can upgrade smoothly. Users need to enable their nodes to start receiving rewards. The 1,000 ABS Master Nodes will cease receiving rewards starting from July 25.

Absolute Coin is fast and low cost blockchain for verifying advertising through PoV and backed by Master Nodes. More information is available here.

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   964

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.