Cointime

Cointime

Download App
iOS & Android

zkPass: Decentralized Social Identity Infrastructure based on MPC and ZKP

Cointime Official

With the development of Web3, we are witnessing the rise of a decentralized society. In this society, everyone has complete control over their private data and can interact with the Web3 ecosystem in a secure, efficient, and trustworthy manner. To achieve this vision, we have introduced zkPass, a privacy-preserving identity protocol based on secure multi-party computation (MPC) and zero-knowledge proofs (ZKP).

Project Overview

zkPass is a privacy protection protocol for verifying private data. It is based on MPC, ZKP, and three-party TLS. zkPass allows users to selectively prove their verifiable data in Web2 and Web3 to third parties, including legal identities, financial data, medical records, social data, work experience, educational credentials, and skills, without the need to upload files or disclose any personal privacy details. It is worth mentioning that zkPass stood out among more than 900 projects, winning the first prize in binance Labs' buildtheblock and receiving investment from Binance.

Working Principles

The zkPass protocol operates based on two key technologies: MPC-TLS and ZKP. MPC (Secure Multi-Party Computation) enables multiple participants to jointly perform computations without compromising their privacy, while revealing the results to one or all participants. ZKP (Zero-Knowledge Proof) allows the prover to convince the verifier of a statement's truthfulness without disclosing any sensitive information.

Key Technologies - MPC-TLS & ZKP

  • TLS: The Transport Layer Security protocol provides confidentiality and data integrity between two communicating entities. TLS is a cornerstone of communication in the network world.
  • MPC (Multi-Party Computation) enables multiple participants to collaboratively perform computations without compromising their privacy and disclose the results to one or all participants. This is primarily achieved using the Yao's garbled circuit protocol and Oblivious Transfer protocol. Additionally, zkPass is leveraging the latest research papers to optimize the efficiency of MPC, such as "Half Gate," "Silent OT," and "Vector-OLE."
  • ZKP (Zero-Knowledge Proof) allows a prover to convince a verifier that a statement is true without revealing any sensitive information to the verifier. Its specific implementation is based on zk-SNARK. zkPass is currently optimizing ZKP to be interactive and efficient, meaning it can generate ZKP in just a few seconds.

User Flow

Users (verifiers) no longer need to upload documents or share personal information with third parties. Users can locally generate zero-knowledge proofs by accessing various trusted data sources (such as Australia's MyGovID or Singapore's Singpass) and provide responses to on-chain smart contracts. During this process, the MPC nodes of the zkPass protocol acquire a shared mac_key to ensure the integrity, authenticity, and validity of the data.

Main Features

zkPass has the following main features:

  1. Privacy Protection: zkPass uses zero-knowledge proofs to enable users to share their data without disclosing sensitive information.
  2. Verifiability: zkPass leverages verifiable zkSBTs to ensure data integrity and verifiability.
  3. Compatibility: zkPass is compatible with a wide range of data sources from Web2 and Web3 applications, making integration with existing systems easy.
  4. Anti-cheating: zkPass incorporates advanced anti-cheating mechanisms to prevent fraud and abuse.

Application Scenarios

The versatility of zkPass makes it suitable for a wide range of industries. It is compatible with all data sources of Web2 HTTPS websites and Web3 applications, allowing seamless integration with existing systems without requiring any changes on the data source side. Potential application scenarios for zkPass include, but are not limited to: zkKYC, healthcare, education, decentralized due diligence, social networks, gaming, finance, and supply chain management.

- Online identity verification: With zkPass, users can easily verify their identity online without revealing personal information, which helps prevent identity theft and protect privacy.

- Social applications: With zkPass, users can anonymously prove the authenticity of their age, personal information, and profiles without disclosing sensitive personal data.

- Decentralized finance: zkPass can be used to verify identities and credentials for DeFi applications, ensuring that only authorized parties can access sensitive financial data.

- Job applications: zkPass can verify the qualifications, education, and experience of job applicants without disclosing personal information.

- Online marketplaces: zkPass can be used to verify the authenticity of sellers and buyers, or publishers and applicants, on online marketplaces, preventing fraud and abuse.

Summary

Imagine a world where your personal information no longer needs to pass through numerous data brokers or third parties, but instead remains in your own hands. It's a world that respects privacy, ensures data security, authenticity, and verifiability. This is the world zkPass is creating.

zkPass is more than just an identity verification tool; it is the foundation of a decentralized society. By leveraging MPC and ZKP technologies, zkPass allows users to selectively share their verifiable data with third parties without disclosing sensitive information. Companies and individuals can verify identities and credentials without compromising personal data.

The versatility and compatibility of zkPass make it a valuable tool across various industries. From financial institutions to healthcare providers, zkPass can be used for secure and privacy-preserving identity verification. Furthermore, with its advanced anti-cheating mechanisms, zkPass ensures tamper-proof and fraud-free data.

The future is decentralized, and zkPass is leading the way. With its privacy-enhancing technology and secure verification methods, zkPass is creating a world where individuals have control over their own data and privacy is respected.

Web3
Comments

All Comments

Recommended for you

  • Economic Daily: 'Patience' is Becoming the Most Scarce and Urgent Demand in the Market

    On September 27, Economic Daily published an article stating that patience is not only a friend of time but also the soil for innovation. Technological innovation inherently features high investment, high risk, and long cycles. Who has the capability to support this expedition in scientific innovation? Tian Xuan, Dean of the Guanghua School of Management at Peking University, provides the answer in his book 'Patient Capital: Building a New Ecology of Long-term Investment'—patient capital. The characteristic of patient capital lies in its pursuit of long-term investment horizons and strategic stability, rather than short-term financial returns. As global economic uncertainty rises and China’s economy stands at a critical juncture of transitioning from factor-driven to innovation-driven growth, the concept of 'patience' is becoming the most scarce and urgent demand in the market. At the macro level, patient capital can effectively smooth short-term market fluctuations and enhance overall market confidence and resilience through long-term asset holding and rational decision-making, while creating a stable financial environment for the implementation of medium- to long-term economic and industrial policies by the state. At the micro level, patient capital can cover the entire development cycle of technological innovation, providing a tolerant space for trial and error in technology, and shifting resources from short-term market projects to long-term innovation projects. Furthermore, the participation of patient capital can send positive signals to the outside world, reduce information asymmetry between market investors and upstream and downstream companies, and alleviate financing difficulties for enterprises. Beyond financial support, it can also promote knowledge transfer and market resource integration through its own network, enhancing the success rate of innovation and research and development in invested companies, and driving the development of new productive forces and the upgrading of economic structure. Strengthening patient capital means not only extending the investment horizon but also respecting the laws of technological iteration, trusting in the long-term evolution of industries, and building a consensus on long-term value. Its deep binding with the real economy will become another important force supporting the stable and long-term development of the Chinese economy.

  • Iranian Military: Pursuit of Trump and Netanyahu Will Continue After War

    On September 27, senior spokesman for the Iranian armed forces, Shekarchi, stated that even after the war ends, the Iranian military will continue to pursue U.S. President Trump and Israeli Prime Minister Netanyahu, labeling them as "murderers" who will inevitably face punishment. "Even if the war ends, we will not spare Trump, Netanyahu, and their accomplices. Regardless of whether they remain in power, they must pay the price for their actions," Shekarchi said. He emphasized that Tehran will never allow the U.S. to regain its former status in the emerging world order. The only safe path for U.S. troops is to withdraw from the Middle East, and the faster they leave, the fewer losses they will incur. "Americans can dream of intervening in the Strait of Hormuz. But if they dare to meddle in the Strait of Hormuz, they will receive a hard slap in the face."

  • Iranian Foreign Minister: Opening of Strait of Hormuz Depends on Iran's Conditions Being Met

    On September 27, Iranian Foreign Minister Zarif stated that Iran will not make concessions to the United States on established conditions. The opening of the Strait of Hormuz depends on whether Iran's proposed conditions are met, and any progress regarding the opening of the Strait will depend on the implementation of these conditions. Iran will never compromise on these issues. Zarif mentioned that Iran has been informed of the U.S. initial response to the proposal for reopening the Strait of Hormuz but has not yet received any specific information conveyed by the mediators. Iran is waiting for the mediators to communicate the final position, and will make decisions based on that. U.S. President Trump stated on the 26th that he rejected Iran's proposal to reopen the Strait of Hormuz. (CCTV News)

  • US to Lower Fuel Economy Standards, Fuel Consumption and Emissions May Rise

    On September 27, US officials announced on Saturday that the Department of Transportation will finalize regulations to significantly lower fuel economy standards for cars on Monday, applicable until 2031. This means the US will reverse the policies promoted during the Biden administration that encouraged automakers to produce more electric vehicles. Former President Trump stated that he has approved new fuel economy standards for cars and trucks, claiming that the new regulations will reduce the prices of new vehicles. US Transportation Secretary Duffy remarked, 'American auto workers will celebrate a major victory on Monday.' According to estimates from the Department of Transportation, the new standards will lower the cost of new cars, but fuel consumption and carbon dioxide emissions will increase over the coming decades.

  • U.S. Spot Bitcoin ETF Sees $2.39 Billion Net Inflow in a Week, Highest Since 2026

    On September 26, BeInCrypto reported that the U.S. spot Bitcoin ETF experienced a net inflow of $2.39 billion this week, marking the largest single-week net inflow since 2026. According to SoSoValue data, the week started with an inflow of $998.95 million on September 21, but subsequently declined daily to $134.47 million by Friday, approximately 87% lower than Monday. Nonetheless, funds continued to flow in for the seventh consecutive trading day. The significant inflow on Monday followed a 6.7% surge in Bitcoin, which led to about $262 million in short positions being liquidated within an hour. A global business survey by S&P on September 23 indicated that the U.S. economy is growing at its fastest pace since July 2021, with the 10-year U.S. Treasury yield surpassing 5%, causing Bitcoin to drop below $84,000 within an hour. The total assets of the ETF currently stand at $108.42 billion.

  • Riot Repays Coinbase Loan Early and Terminates $200 Million Bitcoin Collateral Credit Line

    On September 26, according to U.S. SEC filings, Bitcoin mining company Riot Platforms (NASDAQ: RIOT) voluntarily repaid all outstanding loans to Coinbase Credit on September 21 and terminated its $200 million credit line, while also releasing the lender's claim on the collateralized Bitcoin. Riot paid the full principal and accrued interest, incurring no early termination fees or penalties, and Coinbase's subsequent lending commitments were also terminated. The credit line, revised in April 2026, carried a fixed annual interest rate of 6.15% with a maturity date extended to April 20, 2027, and Riot had previously fully drawn the amount. At this rate, the annual interest on the $200 million balance is approximately $12.3 million. As of June 30, Riot had pledged 5,821 Bitcoins as collateral, valued at about $340.7 million, which accounted for approximately 51% of its total holdings of 11,380 Bitcoins at that time; the collateral also included USDC and cash held in Coinbase Custody Trust. This credit line was initially established in April 2025 for $100 million with a variable interest rate; it was doubled to $200 million the following month with a one-time fee of $1 million. Since the window for early termination fees specified in the agreement closed on August 21, no fees were required for the repayment in September. Riot is simultaneously expanding its data center operations, having announced in August a 20-year lease agreement with an unnamed AI developer for 191 megawatts of computing power at its Rockdale facility, which is expected to generate approximately $9.1 billion in initial revenue.

  • Trump: 'Super Intelligence' is a More Fitting Term than 'Artificial Intelligence'

    On September 26, U.S. President Trump stated: 'Super Intelligence' is a more fitting name. This name is more accurate because the term 'Artificial' often implies 'false' or 'not real'; however, it (Artificial Intelligence) is not a false entity, but rather an extremely powerful form of intelligence.

  • US and China Reach Agreement to Cut Tariffs on $30 Billion in Goods

    On September 26, the United States and China reached an agreement to reduce tariffs on $30 billion worth of goods following talks between President Xi Jinping and US President Donald Trump. (Watcher.Guru)

  • BTC Surpasses $84,000

    Market data shows that BTC has surpassed $84,000, currently priced at $84,015.64, with a 24-hour increase of 0.31%. The market is experiencing significant volatility, so please ensure proper risk management.

  • Web3 data and AI company Validation Cloud completes $10 million in new round of financing

     Web3 data and AI company Validation Cloud announced a $10 million financing round from True Global Ventures. The company plans to use the funds to expand its AI products and achieve seamless access to Web3 data.

Daily Must-Read

Popular Activities

RaveDAO at Terra Solis by Tomorrowland: A Female-Led Techno Night Where Web3 Culture Converges

RaveDAO at Terra Solis by Tomorrowland: A Female-Led Techno Night Where Web3 Culture Converges

April 30 - April 30
Dubai

Popular Tags

Cointime
News
Contents
RSS
Company