Zentra — Enterprise-Grade Identity & Access Management Platform

Secure OAuth 2.0 & OpenID Connect Infrastructure for Modern SaaS and Microservices.

Client requests flow to API Gateway, then to Zentra for identity, then to microservices.
Client
API Gateway
Zentra
Microservices

Identity Fragmentation

Without centralized identity, enterprises face:

Without Zentra

  • Multiple user databases across products
  • Inconsistent password and policy enforcement
  • No single sign-on (SSO) across applications
  • Scattered audit logs and compliance gaps
  • Security vulnerabilities at integration boundaries

With Zentra

  • Single source of truth for identity
  • Unified password and policy controls
  • SSO across web, mobile, and APIs
  • Centralized audit trails for compliance
  • Consistent security at every boundary

What Zentra Solves

Zentra addresses identity fragmentation, token lifecycle, and access control at scale.

  • Identity fragmentation across products and services
  • Token lifecycle management (issue, refresh, revoke)
  • Centralized RBAC and scope enforcement
  • Multi-product SSO with one identity layer
  • Microservice authentication consistency
Authorization Code Flow
Standard OAuth 2.0 for web apps
PKCE
For mobile and public clients
Client Credentials
Machine-to-machine and service accounts
Refresh token rotation
Short-lived access, secure refresh
Token introspection
API Gateway and resource server validation
JWKS
Distributed JWT validation without shared secrets

Core Capabilities

Security Architecture

  • JWT signing (RS256 / ES256)
  • Refresh token rotation
  • MFA (Email / SMS / Authenticator)
  • LDAP / Active Directory integration
  • Role & scope enforcement
  • Token revocation endpoint
  • PKCE enforcement
  • Audit trails

Clean Architecture Implementation

  • Domain → Application → Infrastructure → API
  • Repository pattern
  • Config-driven behavior
  • Multi-database support

Microservices-Ready

  • Stateless token validation
  • JWKS endpoint
  • API Gateway integration
  • Scope-based routing
  • Header propagation (X-User-ID)

Compliance & Governance

  • SOC 2 readiness
  • GDPR alignment
  • HIPAA considerations
  • ISO 27001
  • OWASP Top 10 mitigation
  • Audit logs and access controls
  • Encryption in transit
  • Secrets management policy

Real-World Use Cases

SaaS Platform

Unified identity for web, mobile, and API — e.g. RentFlow-style products.

  • Web + Mobile + API under one identity
  • SSO across products
  • Unified policy and RBAC

Enterprise SSO

HR, Finance, IT systems with corporate directory integration.

  • LDAP / AD integration
  • MFA enforcement
  • Centralized access control

Mobile PKCE Authentication

Public clients with secure token handling.

  • PKCE for public clients
  • Secure token storage
  • Refresh token rotation

API Gateway Protection

Protect microservices and APIs with JWT validation.

  • JWT validation at gateway
  • Introspection support
  • Scope-based routing

Why Not Auth0 / Okta?

75–95% cost savings at scale. No MAU pricing. Own your identity layer. Increase IP valuation.

FeatureAuth0OktaZentra
Vendor lock-inYesYesNo
Data sovereigntyLimitedLimitedFull
Cost at scaleHighVery HighInfrastructure only
CustomizationLimitedLimitedFull
Multi-product reusePartialPartialNative

Engineering Maturity Roadmap

Zentra is at L2 (Production Ready) and moving toward L3 (Enterprise Hardened).

L1Basic
  • Core OAuth 2.0 / OIDC flows
L2Production ReadyCurrent
  • Stable APIs
  • Documentation
  • Security baseline
L3Enterprise Hardened
  • Rate limiting
  • Token encryption at rest
  • Health endpoints
  • Distributed tracing
L4Cloud Native
  • Containerization
  • Kubernetes
  • Horizontal scaling
L5Platform Identity Provider
  • Multi-tenant
  • Advanced governance
  • Platform APIs

Security Commitment

  • Security First
  • Zero Trust Architecture
  • No secrets in repo
  • Structured logging
  • Observability built-in

Trust Signals

  • Secure by design
  • Built on .NET 8
  • Clean Architecture enforced
  • CQRS + Vertical Slice
  • OWASP compliant
  • Audit logging
  • Multi-tenant ready (roadmap)

Architecture

Browser → API Gateway → Zentra → Services → Database. JWT is validated at the gateway; refresh token is used at Zentra; RBAC is defined in Zentra and enforced across services.

You build your product. Zentra protects your identity layer.

Focus on your business.
Zentra secures your identity layer.

  • Build SaaS without worrying about auth
  • Scale to millions without vendor pricing explosion
  • Centralize identity across products
  • Maintain compliance easily
  • Protect APIs and microservices correctly

Request a Demo

Schedule an architecture call or download our security whitepaper.