Verisign to implement DNSSEC using blockchain

One of the oldest internet security companies is exploring blockchain usage in the field of domain name services
27 October 2017   2064

One of the world leaders in the field of domain names, Verisign, plans to patent the implementation of the DNS Security Extension (DNSSEC) protocol using blocking technology. The corresponding application was published by the Bureau of Registration of US Patents and Trademarks, CoinDesk reports.

The DNSSEC protocol is used to protect against the spoofing of information in the response and to prevent users from accidentally migrating to malicious sites when changing the DNS address.

At the same time, Verisign offers to store digital certificates, public keys and other means of authentication on the server, which will ensure the protection of users from hacker attacks and other malicious acts.

Several methods of using the DNSSEC protocol are assumed, but at the moment Verisign does not say about the further development of the system.

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   1011

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.