Zero-Knowledge Proofs Revolutionize Decentralized Identity Systems

According to Cointelegraph, zero-knowledge (ZK) proofs in decentralized identity applications have ignited a debate within the crypto industry, with some critics arguing that ZK is too costly and complex to implement. However, Leo Fan, co-founder of ZK hardware company Cysic, contends that despite historical expenses, ZK-proofs are more cost-effective than traditional ID systems managed by centralized institutions. In an interview with Cointelegraph, Fan highlighted that advancements in hardware and more efficient proof generation have significantly reduced the costs and finality time for ZK-proofs. These improvements make ZK-proofs less expensive than conventional identification systems, which often involve extensive bureaucracies and substantial financial resources. Fan noted, "Zero-knowledge proofs were quite expensive to run at the beginning of this year, but we have been accelerating the proof generation to make it more convenient for people. So in that sense, we are reducing the barrier to using ZK." Currently, the time required to generate ZK-proofs is approximately 10 seconds, positioning ZK as a viable method for decentralized identification that maximizes privacy while maintaining necessary screening functions for proof of ID scenarios. The adoption of ZK-powered identity solutions is gaining traction globally. The recent implementation of ZK-powered digital ID for 3.6 million residents in Buenos Aires, Argentina, was praised by Fan. Government officials announced the integration of QuarkID into the existing miBA digital identification framework on October 21, offering individuals greater control over their biometric data. Additionally, in August, Worldcoin introduced its World ID orbs in Vienna, Austria. These devices collect biometric data by scanning users' irises and converting the unique identifiers into cryptographic proofs to verify personhood. Later that month, the Malaysian government signed an agreement with Worldcoin to incorporate the company's iris-scanning orbs into the national identification system. This collaboration also involved Tools for Humanity and MyEG, a firm specializing in bridging government services with the population.