Iran May Lift Crypto Ban

Meanwhile, Iran has completed the development of legislation to issue its own national cryptocurrency
28 August 2018   1136

The Central Bank of Iran is likely to lift the ban on cryptocurrencies and by the end of September to create legislation to regulate them. This is reported by Financial Tribune.

The first concerns the prevalent global cryptocurrencies. The High Council of Anti-Money Laundering has imposed a ban in light of concerns over global allegations of money laundering and financing of terrorism. But it seems that after the government's consideration, this blanket ban will be reviewed.
 

Nasser Hakimi

Deputy for innovative technologies, Cental Bank of Iran

In April, the Central Bank of Iran, guided by the ideas of combating money laundering, introduced a ban on trade in cryptocurrencies. In addition, this decision reflected the need to limit the possible use of digital tokens to support terrorist activities and perform other tasks related to the lack of appropriate regulation. However, this ban had only a temporary effect - soon the cryptoexchanges resumed operations, in connection with which the Central Bank again thought about the regulation of digital assets.

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.