Dynamic Access Control: Didit and Open Policy Agent

Enhanced SecurityIntegrating Didit with Open Policy Agent (OPA) creates a formidable defense, enabling dynamic and context-aware access control decisions based on verified identity attributes, not just static roles.

Real-time AuthorizationLeverage Didit's instant identity verification results, including Liveness Detection and ID Verification, to feed OPA for real-time authorization, ensuring only legitimate users gain access based on current policy requirements.

Compliance AutomationCombine Didit's AML Screening and Age Estimation capabilities with OPA to automatically enforce regulatory compliance, reducing manual overhead and minimizing risk across various industries.

Flexible and Scalable ArchitectureDidit's modular and API-first design seamlessly integrates with OPA, offering a flexible and scalable solution for implementing complex authorization policies across diverse applications and services without vendor lock-in.

The Need for Dynamic Access Control in Modern Applications

In today’s rapidly evolving digital landscape, static, role-based access control (RBAC) often falls short. Modern applications require dynamic access control that can adapt to real-time context, user behavior, and evolving risk profiles. This is where the synergy between robust identity verification and a powerful policy engine becomes critical. Businesses need to answer questions like: Is this user who they claim to be? Are they of legal age for this service? Have they been screened against watchlists? And based on these answers, what specific actions are they permitted to take?

Traditional access control mechanisms struggle to incorporate such nuanced, real-time identity data into authorization decisions. This often leads to either overly permissive access, creating security vulnerabilities, or overly restrictive access, hindering user experience and operational efficiency. The solution lies in decoupling policy enforcement from application code and centralizing policy decisions based on rich, verified identity information.

Open Policy Agent (OPA): Your Centralized Policy Engine

Open Policy Agent (OPA) is an open-source, general-purpose policy engine that enables unified, context-aware policy enforcement across your stack. OPA allows you to define policies as code (using its declarative language, Rego) and offload authorization decisions from your applications and services. When an application needs to make an authorization decision, it queries OPA, providing relevant context (e.g., user ID, resource being accessed, time of day). OPA then evaluates its policies against this input and returns a decision (e.g., allow/deny).

The power of OPA lies in its flexibility. It can enforce policies for microservices, Kubernetes, CI/CD pipelines, API gateways, and more. By externalizing policy, you gain:

• Centralized Policy Management: All policies live in one place, making them easier to manage, audit, and update.
• Improved Security: Consistent policy enforcement across your infrastructure reduces the risk of misconfigurations.
• Faster Development: Developers can focus on core application logic, leaving policy decisions to OPA.
• Dynamic Decisions: OPA can incorporate any data into its policy evaluation, making it ideal for context-aware authorization.

Integrating Didit for Rich Identity Context

While OPA provides the policy engine, it needs data to make informed decisions. This is where Didit, the AI-native identity platform, plays a pivotal role. Didit offers a suite of modular identity verification services that can provide OPA with the rich, verified identity attributes it needs for dynamic access control. Imagine a scenario where access to a high-value transaction or age-restricted content is determined not just by a user's role, but by their real-time verified identity, liveness status, and compliance checks.

For example, Didit's ID Verification (OCR, MRZ, barcodes) can confirm a user's identity against official documents. Its Passive & Active Liveness detection ensures the user is a real, present individual, preventing deepfake and presentation attacks. For specific use cases, Age Estimation can provide privacy-preserving age verification, crucial for compliance in industries like online gaming or alcohol sales. Furthermore, AML Screening & Monitoring provides critical compliance data, indicating whether a user is on a watchlist.

By integrating Didit, OPA policies can be crafted to leverage these verified data points. A policy might state: “Allow access to financial services only if the user’s ID is verified, liveness check passed, and they are not on any AML watchlist.” This brings a new dimension of security and compliance to your access control strategy.

Practical Implementation: Didit + OPA in Action

Implementing Didit with OPA involves a few key steps:

1. Perform Identity Verification with Didit: When a user registers or attempts to access a protected resource, your application initiates a verification flow using Didit's APIs. This could involve ID Verification, Liveness Detection, or AML Screening, depending on your requirements. Didit provides real-time results, including a verification status, face match scores, liveness scores, age estimation, and AML hits.

2. Store Verified Attributes: The verified attributes returned by Didit are stored in your user profile database or a dedicated identity store. This data becomes part of the context that OPA will evaluate.

3. Define Policies in OPA (Rego): Write OPA policies that reference these verified attributes. For example:

   package myapp.authz
   
   default allow = false
   
   allow {
       input.method == "GET"
       input.path == ["products"]
   }
   
   allow {
       input.method == "POST"
       input.path == ["financial_transaction"]
       input.user.is_verified_id == true
       input.user.liveness_passed == true
       not input.user.on_aml_watchlist
       input.user.age >= 18
   }
   

   In this example, the second allow rule demonstrates how OPA uses is_verified_id, liveness_passed, on_aml_watchlist, and age—all attributes that can be provided by Didit—to grant access to a financial transaction.

4. Query OPA for Authorization: Before allowing a user to perform an action, your application sends a query to OPA, including the user's verified attributes (fetched from your identity store) and the requested action's context. OPA evaluates the policies and returns an allow/deny decision.

This architecture ensures that authorization decisions are always up-to-date with the user's verified identity status, providing unparalleled security and compliance.

How Didit Helps

Didit is perfectly positioned to serve as the identity data provider for your OPA-driven dynamic access control system. Our AI-native, developer-first platform offers several key advantages:

• Modular Identity Primitives: Didit's modular architecture allows you to pick and choose the exact verification checks you need, whether it's ID Verification, Passive & Active Liveness, 1:1 Face Match & Face Search, AML Screening & Monitoring, or Age Estimation. Each component provides granular data that can be fed into OPA policies.
• AI-Native Accuracy: Our AI-powered verification ensures high accuracy and fraud detection capabilities, providing OPA with reliable data for critical decisions.
• Developer-First Experience: With clean APIs and an instant sandbox, integrating Didit into your existing systems to extract identity attributes is straightforward and efficient.
• Free Core KYC & Flexible Pricing: Didit offers Free Core KYC, allowing you to start building robust identity verification without upfront costs. Our pay-per-successful check model, with no setup fees, ensures scalability and cost-efficiency.
• Orchestrated Workflows: Beyond standalone APIs, Didit's no-code Business Console allows you to orchestrate complex verification workflows, ensuring all necessary identity data points are collected and verified before being passed to OPA.

By leveraging Didit, you can ensure that the identity context OPA evaluates is always accurate, current, and comprehensive, leading to more secure and compliant access control decisions.

Ready to Get Started?

Ready to see Didit in action? Get a free demo today.

Start verifying identities for free with Didit's free tier.