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How does zero-knowledge proof authentication help create a mobile digital identity solution?




Web engineers have been working for a long time to determine if there is a way to prove something true without revealing any data to support that claim. Zero-Knowledge Proof (ZKP) technology may enable Deploy encryption algorithms To validate allegations of data acquisition without disclosing it. These proof mechanisms have led to advanced mechanisms that enhance privacy and security.

Leveraging the blockchain deals with issues related to centralization, while privacy is lacking in Decentralized Applications (DApps) Maybe Balanced with ZKP encryption algorithms.

This article provides an introduction to zero-knowledge proofs, mobile identity, problems with mainstream identity solutions, blockchain-based zero-knowledge mobile identity solutions, untrusted authentication, and the password credential generation process.

What is proof of lack of knowledge?

Zero-knowledge proof is a coding technique that validates a claim. It enables the protocol to prove to the investigator that a claim about certain confidential information is accurate without revealing any important information. Technology facilitates interactive, non-interactive, and zero-cognitive applications.


An interactive guide needs multiple communication mechanisms between the two parties. On the other hand, non-interactive non-knowledge proof requires a single exchange of information between the participants (the confirmer and the investigator). It improves zero-knowledge efficiency by reducing back-and-forth communication between the installer and the validator.

Non-knowledge proof works by means of a proof that shows the investigator that he has a secret to identify without revealing the secret itself. For example, an installer might be holding an asymmetric key pair and using the identification secret as a private key to respond to the statement sent with the public key. This culminates in a situation where the auditor is satisfied that the key has the key without revealing it.

With zero-knowledge proof technology, a user can prove that they are of an appropriate age to access a product or service without revealing their age. Or someone can prove that they have enough income to meet the criteria without having to share accurate information about their bank balance.

Zero-defined identity authentication

The need for businesses to manage vast amounts of consumer data while ensuring consumer privacy and complex regulatory compliance has led to the growing need for Innovative digital identity solutions. Zero-knowledge proof has helped bring success to the concept of mobile digital identity efficiently.

Identity portability refers to the ability of users to create a single set of digital identity credentials that can be used across multiple platforms. a Digital Identity Management Scheme Unique identifiers on a user’s device, related legal documents, and biometrics such as face ID or fingerprints.


Understanding how a decentralized identity (DID) wallet is stored on a smartphone will help you get a better understanding. The issuer attaches a public key to the verifiable credentials it has issued. The credentials are kept securely in the wallet, and passed on to the validators. All the validator needs is to confirm that the appropriate issuer has cryptographically signed the credentials submitted by the user.

Problems with dominant identity solutions

Data breaches hit hardand bypass privacy and bad authentication It has been an enemy of online applications. This is fundamentally different from the time of the initial web architecture when user identity was not a priority.

Traditional authentication methods are no longer sufficient due to our complex and ever-changing security environment. These methods severely restrict users’ control over their identities and risk management, compromising access to essential data. Usually, companies use different identity services to solve various identity related issues.

Extracting data from a variety of sources through a series of advanced technologies has made maintaining identity-related data a cumbersome task. Collecting multidimensional data while adhering to a wide range of regulations has made it extremely complex for companies to quickly solve identity-related issues, detect fraud and uncover business opportunities simultaneously.

Mobile identity solutions that work without knowing

intersection, Portable Self-Sovereign Identity Solutions Enable organizations to secure customer access and data using a single platform. Such a seamless experience of identity reduces customer disruption. Secure workstation login helps secure remote work and reduces fraud risks associated with weak passwords.


Blockchain based solutions stores Identity within a decentralized ecosystemEnable the person to prove identity when necessary. NuID, for example, takes advantage of the Proof-of-No-Know protocol and Distributed Ledger Technologies To facilitate the digital identification of individuals and companies.

The NuID ecosystem allows users to own and control their digital identity using services built on knowledgeless basic authentication solutions. The decentralized nature of the solution results in a mobile and user-owned identity platform. They can own, control, manage, and allow efficient use of identity-related data.

Thus, the solution makes businesses “consumers” of these identities and associated metadata Promote more privacy-focused interactions. Ownership of dynamic data benefits both the user and the service provider. It eliminates the need for companies to secure a massive amount of user data, as they no longer need to hide any sensitive and personally identifiable information.

Unreliable authentication

When creating a software application, authentication is one of the primary steps. In a rapidly evolving security landscape, where context-specific UX (user experience) needs are steadily expanding, user privacy concerns require more than traditional authentication. Applications require a platform that facilitates adaptation to change digital identification requirements.

Unreliable authentication provides a powerful alternative to the model of storing passwords in private databases. NuID Auth API (Application Programming Interface), for example, rolls out endpoints for creating and verifying user credentials through ZKP technology, making it easier to create proofs and credentials in client applications for use cases such as user registration and user login.


One can expect an advanced platform to address the flaws of common authentication and user management. Features can include a password blacklist to safely inform users of weak and stolen credentials, accessible Standard Authentication UI components, and advanced MFA (Multi-Factor Authentication) functionality.

The process of creating password credentials

The process is somewhat similar to the current workflow for creating and verifying passwords. One takes the user’s information (name, email and password), posts it to the registration endpoint, and starts a session. To integrate the registration process, one needs to create credentials on the client side. Instead of a password, as in older applications, verified credentials are sent to ZPK-based applications.

Here is the typical process for enrolling a user into a mobile identity solution based on Proof of No Knowledge:

The process has no effect on the remaining recording flow which may include issuing a session, sending email notifications and more.


The road ahead

As zero-knowledge proof technology advances in the coming years, it is expected that massive amounts of data and credentials will be represented on the blockchain by a public identifier that does not reveal any user data and cannot be retroactively resolved to the original secret. Adapting mobile identity solutions based on zero-knowledge protocols will help avoid detection of attribute ownership, thus effectively eliminating associated threats.

Powered by ZKP technology, mobile identity solutions have the ability to take data privacy and security to the next level in a wide range of applications, from data entry in the Internet of Things (IoT) to fraud prevention systems.

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