ETHERLive
ETHERLive delivers real-time price and volume data across 16+ exchanges to users in a clear and easy-to-understand package. Users can get up-to-the-second updates for each exchange/currency pair, as well as aggregated market averages for each exchange, currency, and the market as a whole. It also provides a global converted average of all the currency pairs monitored by ETHNews, converted to USD.

---

24hr ---
--%
Tuesday Dec 12th 2017
RESOURCES

The Basics

Learn the basics of Ethereum and various cryptocurrency technologies

Learn More

What is Ethereum?

Understand the underlying principles of the Ethereum Platform

Learn More

The Blockchain

Discover the revolutionizing technology known as the blockchain

Learn More
SUBMIT

Press Release

Submit a press release for consideration on ETHNews

Submit Press

Story / Dapp

Submit a story or DAPP to be considered for publication on ETHNews.

Submit Story

Explanation

Submit "Ethereum Explainer" content for consideration to be featured on ETHNews

Submit Topic
ETHNews Logo
---
--%
Home
News
Etherlive
Ether Price Analysis
Resources
Contact Us

Vitalik Buterin Releases Another Blog Detailing How zk-SNARKs Work

By

Jim

Manning

WriterETHNews.com

Vitalik Buterin shared a blog post he’d written on zk-SNARKs. The blog is the third in a series of articles explaining how the technology behind zk-SNARKs works.

Vitalik Buterin is a fan of highly complex math. Thankfully, for those interested in learning about high-level math concepts, Vitalik is also adept at explaining mathematics. He recently shared a blog post titled: “Zk-SNARKs: Under the Hood.” In it, he attempts to demystify how zk-SNARKs actually work.

His blog explains that this is the third post in a series, so readers are encouraged to start with the first two on quadratic arithmetic programs and elliptic curve pairings before attempting to understand the new concepts he discusses. If this is your first foray into zk-SNARKs, you might also want to prime yourself with Christian Reitwiessner’s article on zk-SNARKs in a nutshell. The posts are decidedly technical and informative, even for programmers who are actively working in the field of cryptography (or those who simply love to torture themselves with math).

As a bit of a knowledge check, Vitalik’s latest blog post starts by talking about how the quadratic arithmetic program is a way of representing “any computational problem with a polynomial equation.” He then briefly touches on how elliptic curve pairings “allow a very limited form of one-way homomorphic encryption.”

He later delves into why a “trusted setup” is needed for zk-SNARKs to work, and how that’s actually accomplished. The trusted setup is about creating an integral component of the zk-SNARK formula that must be deleted after everything is set up. If that “toxic waste” (as they call it) isn’t deleted, it could potentially be used to create fake proofs, allowing fraudulent activity across the network. This is an area of “active research” according to Vitalik, who says in the blog:

“It’s an area of active research to see if the multi-party computation algorithm can be simplified further and made to require fewer rounds or made more parallelizable, as the more you can do that the more parties it becomes feasible to include into the trusted setup procedure. It’s reasonable to see why a trusted setup between six participants who all know and work with each other might make some people uncomfortable, but a trusted setup with thousands of participants would be nearly indistinguishable from no trust at all - and if you’re really paranoid, you can get in and participate in the setup procedure yourself, and be sure that you personally deleted your value.”

The future of Ethereum depends on making it easy to participate in different aspects of the network, and this seems like a good step in the right direction. If you’d like to dig deeper into this concept, and the rest of the zk-SNARK intricacies, check out his latest blog post here.

It seems that research into expanding trusted set ups, and the recent increase in blog posts and outreach to the community, is geared at fostering trust in those who are not in the inner circles of blockchain developers. The more the average person can understand the mechanisms behind the tech, the less uncertainty they should have, regarding the adoption of these burgeoning technological advances.

Jim Manning

Jim Manning lives in Los Angeles and has been writing for websites for over five years, with a particular interest in tech and science. His interest in blockchain technology and cryptocurrency stems from his belief that it is the way of the future. Jim is a guest writer for ETHNews. His views and opinions do not necessarily constitute the views and opinions of ETHNews.

ETHNews is commited to its Editorial Policy

Like what you read? Follow us on Twitter @ETHNews_ to receive the latest zk-SNARKS, Vitalik Buterin or other Ethereum ecosystem news.