SBI Holdings is interested in blockchain

Japanese company is plannig to build a  "new financial ecosystem based on cryptocurrencies"
27 October 2017   1624

SBI Holdings, the financial services division of the Japanese SBI Group, announced its intention to go deeper into the world of blockchain and build a "new financial ecosystem based on cryptocurrencies". This is stated in the company's new financial report and reported by the CoinDesk.

These steps also include collaborative research with partners in order to collect "systematic knowledge" about blocking technologies.

In order to "solve problems" on cryptomarket, SBI Holdings plans not only to buy and mine cryptocurrencies directly, but also to find ways to use them, including creating investment opportunities. Future cases of using crypto currency include money transfers, trade financing and payments.

The SBI Group will endeavor to acquire cryptocurrencies, for the further development of products and services, and to secure market liquidity. This includes the mining of [bitcoin and bitcoin cash], and investments into U.S. Ripple (Ratio of 10.5%).
 

SBI statement

SBI Holdings also confirmed its intention to create a large platform for the exchange and trading of crypto-currencies, the plans for the opening of which was announced as early as 2016.

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   1026

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.