Polygon Unveils Identity Service That Focusses on Keeping Personal Details of Users Private

By using zero-knowledge proofs, Polygon ID creates a digital identity with enhanced security and privacy for users’ personal information.

By Shomik Sen Bhattacharjee | Updated: 1 April 2022 12:48 IST

Polygon Unveils Identity Service That Focusses on Keeping Personal Details of Users Private

Photo Credit: Polygon

Polygon aims to become the de-facto platform for Web 3 development.

Highlights

Polygon ID will be open source with its own SDK
Polygon ID leverages the Iden3 protocol and Circom ZK toolkit
Polygon has also suggested other use cases for its identity solution

Polygon, the popular Layer-2 scalability solution for Ethereum, has been working on some key developments including a new identity verification platform powered by zero-knowledge (ZK) cryptography. The service, called Polygon ID, will help in verifying users' information while preserving their on-chain privacy. Using Polygon ID, applications running on the blockchain will be able to authenticate user data while keeping sensitive information private. Polygon's development team says that the team will leverage iden3, a decentralised identity protocol that uses zero-knowledge proofs, to make this happen.

As the name suggests, 'zero-knowledge'-based protocols bolster privacy by allowing blockchain networks to validate transactions without disclosing data other than time and date on the blockchain. Only the entities involved in a transaction can access further details regarding the transaction. The move is designed to let users transact on the Ethereum network but protect the sanctity of their personal information in a much greater way than they can now.

This is a big one: We are announcing Polygon ID, the first ZK-based self-sovereign identity.

Polygon aims to become the de facto platform for Web3 development, and self-sovereign identity protocol is certainly one of the necessary components of this vision.

Exciting times. ???????? https://t.co/BekfnfgiF1
— Mihailo Bjelic (@MihailoBjelic) March 29, 2022

As noted by Polygon in its official blog post, the new platform ‘is the first-ever to be powered by zero-knowledge (ZK) cryptography, privacy, and blockchain scaling technology'.

ZK technology allows data verification for transactions and personal identification without handing over the control of the information. This also aligns with Polygon's vision of offering better user privacy. Polygon said that it will continue to work on the ZK technology and it has already committed more than $1 billion (roughly Rs. 7,57,680 crore) to related projects. It added that this ID platform is the latest in its growing portfolio.

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With Polygon ID, ZK-proofs will be used to prove a users' identity for Know Your Customer or KYC verification. Previously, users would need to submit personal documents every time they needed to pass KYC, creating new vulnerabilities each time they shared their identification. By using Polygon ID, users no longer need to expose their personal information to companies requiring KYC and can instead prove their identity on-chain using ZK-proofs.

In addition to KYC applications, Polygon has also suggested several other ways its identity solution can be used. Possible future applications include creating decentralised credit scores, player reputation profiles for Web 3 games, and private, censorship-resistant peer-to-peer communication for social applications. Polygon ID will be open source, complete with its own software developer kit, allowing any blockchain protocol to develop its own custom use cases.

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