German Valens Bank to Trade Crypto

The launch of new products is scheduled for September
23 August 2018   1730

German offshore bank Valens Bank has signed an agreement with the Swedish company Blocktrade Technology Ltd. (BTT) about the use of the Crypto Trading Toolbox for trading cryptocurrencies.

After signing an agreement with BTT, which is a daughter of Stockholm IT Ventures AB, Valens Bank will provide clients with the option of crypto-currency trading.

The launch of new products is scheduled for September, and until this time the partners will be engaged in debugging all aspects of the work.

It is noteworthy that under the terms of the transaction, the Swedish software company will receive 1.5% of the volume of funds traded on the Valens Bank site annually.

As stated on the website of the German bank, accounts in various currencies, trading on exchanges, as well as wallets for BTC, BCH, ETH, LTC are available for its clients.

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   982

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.