UChain partners with APEX Network

The blockchain for Smart Sharing Economy UChain announced its partnership with a next-generation blockchain for B2C applications APEX Network
06 June 2018   1592

A blockchain project of a leading data technology and AI company APEX Technologies - APEX Network, is teaming up with UChain. The partnership is a distinctive case of a cross-chain synergy: UChain will be able to utilize APEX's proprietary consumer data protection module ATDM to help encrypt and protect consumer data with off-chain storage and on-chain indexing.

The partnership also creates an interoperability of tokens and assets across the two chains. Thus holding and interchangeability of the other blockchain's token in each project's respective wallets is also possible.

UChain also gets to use APEX Technologies' business-to-consumer ecosystem that intersects with sharing economy. Respectively, APEX Network will have access to interact and tap into UChain's large business and consumer user ecosystem. UChain is the first public blockchain for enterprises that allows building dApps with a focus on the sharing economy.

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   975

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.