IBM to Use Blockchain in Advertising Industry

IBM iX together with Mediaocean created a blockchain consortium, which intends to use the DLT to increase the transparency of the advertising industry
20 June 2018   816

Mediaocean and the division of the "blue giant" IBM iX have created a blockchain consortium, specializing in the advertising industry.

The new organization intends to use the technology of the distributed ledger to increase the transparency of the advertising industry. In the opinion of its participants, the use of a detachment, in particular, will help improve control over spending of funds allocated for advertising campaigns. The consortium also includes such well-known companies as Kellogg's, Kimberly-Clark, Pfizer and Unilever.

In recent years, ... the industry has been plagued with unsustainable economics and transparency issues that hinder progress – particularly around intermediary fees and non-working media. By partnering with IBM, we're able to launch the first advertising blockchain solution that will improve spend transparency – at scale.

Bill Wise

CEO, Mediaocean

According to representatives of IBM iX, the blockchain is able to provide a "a single source of truth to any given media buy, eliminating the doubt and uncertainty that is common today".

A test version of the new blockchain solution for the advertising industry will be presented in July this year.

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.