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The Facebook Calibra team presents a new distributed audit log

May 3, 2020

In a recent presentation at the 3rd ZKProof workshop The Calibra research team presented the distributed liability audit testsor DAPOL, the protocol for improving existing distributed test procedures.

The team led by Konstantinos Chalkias claims this The protocol builds on existing methods and improves them, Introduction of additional optimization and increased privacy. It enables companies to conduct a distributed review of their responsibilities and works in any situation where a company has no reason to overestimate its responsibilities. The latter is the reason why DAPOL cannot be used to test assets.

For example, a crypto exchange could use it to have the community review their liabilities. It can also be used for “negative” voting cases, e.g. B. for the transparent submission of negative reviews online or for reporting inappropriate content on social media.

Gox – Enron

The Facebook Calibra team presents a new distributed audit logThe Facebook Calibra team presents a new distributed audit log

According to the team, their method has significant advantages over conventional testing techniques and existing decentralized methods. When a company is audited by a third party, it usually focuses on the few large accounts and may overlook many smaller accounts.

One of DAPOL main advantages in terms of existing distributed methods is the greatest privacy::

“Specifically, it does not specify the number of people included in the totals or the number of people reviewing their inclusion in these totals.”

If Mt. Gox users had access to a similar tool, its failure could have been prevented. It is possible that this new protocol saved the company as long as the management was not really corrupt.

In his post, Chalkias alludes to the Enron case, in which the accountant Arthur Andersen worked with the firm he audited to cover up his suspicions. Holds that The combination of decentralized testing and third-party testing could have prevented the breakdown both Enron and Arthur Andersen.

Everyone becomes an auditor

One of the main features of DAPOL, according to Chalkias’ LinkedIn post, is that allows everyone::

“”Take the test review and at the same time offers one extra automated validation tool that didn’t exist before. “

The Calibra research team gave Cointelegraph an example of how this could work in practice:

“With this technology, the test entity – for example, a bank or a stock exchange – would publish all of its liabilities as signed and encrypted value added. This encrypted value is calculated by adding each person’s balances. Each person whose balance is included in the total receives a single “ticket” to verify their admission. This “ticket” enables individuals to privately find out if their credit is included in the specified number. If not, they can provide cryptographic evidence for dispute resolution. “

The Calibra research team is unsure whether and how DAPOL should be implemented as part of the Libra project, however I think it will have a profound impact on many areas::

“We believe that There are numerous domains in which DAPOL could be usefulincluding blockchain wallets, finance, electronic voting, economic data and even public health. “

The team hopes to make open source soon. They are currently asking for feedback from the cryptographic and knowledge-free test communities. The code is open to other contributors who can help advance the project.

Recently, one of the project’s research teams published an article proposing a new way to test tolerance to Byzantine failure. Despite being harassed by the United States government, Libra was forced to withdraw, take a turn, and commit to its original vision. Research from their well-funded teams could still benefit the largest crypto community.

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