Gumi to Launch $30M Blockchain Investment Fund

New fund will specialize in cryptocurrencies and blockchain-projects investments
31 May 2018   1248

Specializing in mobile games development, the Japanese company Gumi has created an investment fund with assets of $ 30 million, CoinJournal reports.

A new fund called Gumi Cryptos. It will specialize in cryptocurrencies and blockchain-projects investments. The organization will be headed by the CEO and founder of Gumi Chirono Kunimitsu and creator of the Evercoin, Miko Matsumura.

Having advised top global cryptocurrency startups alongside some of the best investors in the world, I’ve come to realize that all of them struggle to break into Japan, the largest cryptocurrency market in the world. I’m excited to join gumi and their well-respected network in Japan.
 

Miko Matsumura

Founder, Evercoin

Previously, the company invested in the "stable coin" called Basis, as well as in the blockchain start-up Robot Cache, creating a decentralized alternative to the Steam platform.

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.