Barclays to Create Seniors' Team to Study Crypto Trading

To study this issue, a high-level team was already assembled, chaired by the former head of energy trading Chris Tayrr
07 August 2018   892

British investment bank Barclays returned to the issue of crypto currency, after its CEO denied the information about the preparations for the launch of a specialized unit to trade them. This is reported Financial News.

In May 2018, Jesse Staley told the shareholders of the bank that he maintains a skeptical attitude towards crypto-currencies because of the problems of their regulation. According to a new publication Financial News, the bank can still launch its own "project in the field of digital assets."

To study this issue, a high-level team was already assembled, chaired by the former head of energy trading Chris Tayrr. It also includes Marvin Barth, in charge of the macro strategy in the emerging markets and foreign exchange markets, and an expert on the blockchain Lee Brain, who is one of the leaders of the technological division of the bank..

Last month, it became known that Barclays filed two patent applications for blockchain technology, designed to optimize the procedures for customer identification and bank transfers.

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.