Zentra CMS

Enterprise Certificate Lifecycle Management Platform

Gain comprehensive control over the certificate lifecycle. Zentra CMS is built for enterprises to automatically discover, monitor, alert on, and audit digital certificates scattered across platforms and cloud environments, eliminating security and compliance blind spots.

Why Has Certificate Management Become an Enterprise Pain Point?

Modern enterprises span multiple data centers, run mixed Windows and Linux environments, and use multiple internal CAs and HSMs, easily resulting in thousands of certificates. As certificate lifetimes continue to shrink—and the CA/Browser Forum gradually reduces the maximum TLS certificate validity from 398 days to 47 days—manual management is no longer practical.

Uncontrolled Certificate Expiration

Certificates distributed across file systems, Windows certificate stores, and Java KeyStores are often discovered only on the day they expire, causing production service outages.

Difficult Asset Inventory

No one knows exactly how many certificates the organization has, where they are deployed, or who owns them. During audits, teams are forced to search manually.

No Unified Cross-Platform View

Windows CNG, Linux files, Java KeyStore, cloud KMS—each platform has its own tools, with no integrated view across environments.

Lack of Audit Traceability

Without centralized logs and role-based responsibilities, organizations cannot answer “who operated on which certificate and when,” making financial, healthcare, and ISO audits difficult.

Business Risks and Costs of Certificate Expiration

A single forgotten certificate can trigger three risks at once: service disruption, security incidents, and compliance penalties.

Service Outage|Loss per Hour of Downtime

$5.6K–300K

Expired HTTPS certificates can make websites inaccessible and break API connections, directly impacting revenue.

Asset Inventory Challenges|Average Cost of a Data Breach

$4.4M

Failed TLS connections may be exploited by man-in-the-middle attacks to steal customer data and payment information.

Compliance Penalties|Maximum GDPR Fine (or 4% of Revenue)

€20M / 4%

Expired certificates can violate compliance requirements such as PCI-DSS, HIPAA, and ISO 27001.

Certificate Lifetimes Are Getting Shorter

The CA/Browser Forum has approved a phased reduction in the maximum TLS certificate lifetime. Manual renewal processes will eventually become unsustainable, making automation and rotation essential.

398 days

Current Maximum

Until 2026/03/15, most enterprises still plan renewals on an annual basis.

200 days

From 2026/03/15

Validity is cut roughly in half, doubling renewal frequency and sharply increasing the burden of manual scheduling.

100 days

From 2027/03/15

With less than four months of validity, manual renewal operations become impractical.

47 days

From 2029/03/15

With less than two months of validity, automated management and rotation become the only viable approach.

What Is Zentra CMS?

An enterprise-grade platform coveringDiscoveryInventoryMonitoringAlertingAuditingacross the entire certificate lifecycle.

Distributed Agent Architecture

Lightweight agents for Windows / Linux / macOS / Docker automatically report certificates, eliminating the need to inspect hosts one by one.

Distributed Agent Architecture

Centralized Control Plane

A control plane built with Go + gRPC + PostgreSQL, providing unified APIs, RBAC permissions, certificate issuance workflows, and audit logs.

Centralized Control Plane

Modern Web Interface

Built with React + TypeScript, featuring 22 management pages, Traditional Chinese / English / Japanese support, MFA, and a real-time dashboard.

Modern Web Interface

Three Core Values: From Reactive Firefighting to Proactive Governance

Zentra CMS transforms enterprise certificate management from fragmented, manual, and reactive operations into centralized, automated, and proactively monitored asset governance.

100% Automated Certificate Discovery

Cross-platform agents and agentless scanning automatically inventory file systems, certificate stores, Java KeyStores, and 25+ device types.

Proactive N-Day Expiration Alerts

A customizable alerting engine proactively notifies owners before certificates expire, helping prevent service outages.

360° End-to-End Audit Trail

Role-based access control, MFA, and complete audit logs help meet financial and regulatory audit requirements.

Advanced System Architecture and Automation

Adopts a distributed Agent + centralized Control Plane architecture, using gRPC for internal communication and REST APIs for external integrations.

User Interface Layer

Web Console (React)
CLI Tools
REST API

Control Plane

Go Microservices · gRPC / REST · Authentication & Authorization · Business Logic

Certificate Service
Agent Service
Alerting Engine
Authorization Management
Audit Logs

PostgreSQL Database

Certificate Records · Agent Registration · Alert Rules · Users · Audit Logs

Distributed Agents

Automated Scanning · Local Reporting · Remote Configuration Management

Windows Linux macOS Docker

Supported Formats

PEM (.crt, .cer), PKCS#12, Java KeyStore (JKS, integrated with keytool), and intelligent detection of files without extensions.

Intelligent Scanning

Recursive file-system scanning, Windows CNG / system personal stores, and SHA-256 fingerprint-based intelligent deduplication.

Deployment Location Tracking

Every deployment location for each certificate is recorded individually, ensuring no deployment is overlooked.

Three Certificate Source Models

All three models are treated consistently across lists, alerts, renewal policies, and other views. Virtual Agents and Discovery Targets require no software installation.

Physical Agent

INSTALLED · gRPC

Install a lightweight agent on managed hosts to periodically report certificates from local certificate stores.

File System · Windows / Linux Certificate Stores · Java KeyStore

Virtual Agent

AGENTLESS · 25+ TYPES

The Control Plane connects directly to target devices or databases for scanning, with most types supporting automatic write-back deployment.

Databases · Load Balancers · Firewalls/WAF · API Gateway · K8s / Docker

Discovery Target

AGENTLESS · SSH / WinRM

Runs the full discovery pipeline over SSH/WinRM without installation, automatically identifying services, expanding configurations, and locating certificates.

Nginx · Apache · Tomcat · IIS · PostgreSQL · 20+ Services

Cross-Platform Automated Certificate Discovery Without Manual Inspection

Lightweight agents deployed on endpoints automatically scan common certificate storage locations and report results to the Control Plane. Multiple formats and content-based recognition of files without extensions are supported.

Supported Formats

PEM
.crt
.cer
PKCS#12
JKS (keytool)
No File Extension

Scan Scope

File System Scanning

PEM / PKCS#12 files with recursive path scanning and content detection

Windows Certificate Store

CNG / System Personal Store / Trusted Roots

Java KeyStore

JKS and PKCS#12 formats with keytool integration

Intelligent Deduplication

Deduplicate by SHA-256 fingerprint while preserving all deployment locations

Multi-Deployment Tracking

If the same certificate is deployed on multiple hosts, each deployment is recorded individually

Centralized Monitoring Dashboard and Enterprise Security Governance

The dashboard aggregates data reported by all Agents in real time, providing key metrics such as total certificate counts, expiration trends, and Agent connectivity status. It also supports two viewing modes: all certificates and grouping by Agent.

  • Total certificates and status distribution (Valid / Expiring Soon / Expired)
  • Active Agents, offline alerts, and last scan time
  • Expiration trend charts for the next 30 / 60 / 90 days
  • Quick search, filtering, and sorting by host, expiration date, or issuer
  • Bilingual interface (Traditional Chinese / English)
Centralized Monitoring Dashboard and Enterprise Security Governance

Agentless Deep Inventory and Network Range Scanning

Turn “we don’t know which hosts exist in the environment” into proactive discovery and a continuously managed asset inventory.

Zero Installation BarrierProactive Discovery with Automatic Task ListingAutomatic Windows RDP Certificate Renewal Without Login

Discovery Target

Connect directly via SSH (Linux) or WinRM (Windows) to detect services, expand configurations, and locate certificates and private keys without installation.

Network Range Scan

Configure an IP range (CIDR) once and let the system continuously explore in the background, automatically identifying reachable hosts without manual entry.

Intelligent Deduplication

Hosts already managed by Agents or Virtual Agents are automatically marked as “Monitored,” leaving only items that truly require manual decisions in the pending list.

One-Click Onboarding

Promote a candidate host to an official monitoring target with one click while reusing connection information already validated during scanning.

25+ Agentless Scan Sources Covered by One Platform

Databases

MySQL · PostgreSQL · MSSQL · Oracle · IBM DB2

Load Balancers / ADC

F5 BIG-IP · Citrix NetScaler · A10 Thunder

Firewalls / WAF

FortiGate · FortiWeb · Sophos · Palo Alto · Imperva · Cloudflare · MikroTik

Remote / Host / Other

Redis · Windows RDP · SSH · Generic SSH Deployment · SSH Host Key · Windows CA

API Gateway

Kong · APISIX

Containers / Clusters (Read-Only)

Docker Bind Mount · Kubernetes TLS Secret

Most types automatically write certificates back to deployments after issuance; SSH / Windows CA / Docker / K8s are read-only scan sources. Failed deployments automatically roll back to the previous certificate.

25+ Agentless Scan Sources Covered by One Platform

Turn Reactive Firefighting into Proactive Operations — Eliminate Risk Before Certificates Expire

✓ Role Separation · Admins create rules / Operators receive notifications

✓ Alert Suppression · Avoid repeated notifications and control alert frequency per certificate

✓ Historical Traceability · Every alert leaves an auditable record

Rule Configuration

Admins configure alert thresholds (30 / 14 / 7 days before expiration) and assign responsible Operators.

Automated Scanning

The system periodically checks all certificate statuses and compares them against alert rules and expiration times.

Multi-Channel Notifications

When conditions are met, notifications are sent to designated owners through channels such as Email while avoiding duplicate alerts.

Handling and Auditing

Operators record outcomes after handling alerts, and the complete alert history is retained for auditing.

Certificate Revocation and Four-Eyes Approval

Four actions are available for a certificate nearing expiration.

Distributed Agent Architecture

REVOKE · not just a local flag

Send a real revocation request to the issuing CA or the CA used for the most recent renewal, rather than merely marking the certificate locally.

Distributed Agent Architecture
ACME Windows CA Zentra CA

Supports standard CRL revocation reason codes plus secondary confirmation to prevent accidental actions.

Modern Web Interface

FOUR-EYES · dual control

When a renewal policy is set to “Do Not Auto-Deploy,” the new certificate is staged until another person approves it before actual deployment.

Modern Web Interface
  • The creator—including an administrator—can never approve their own task
  • Both frontend and backend enforce the rule, blocking API bypass attempts
  • Every approval / rejection is recorded in the audit log

Built for Regulatory Audits

Zentra CMS is designed for regulatory scenarios such as finance, healthcare, government, and ISO 27001, where clear role separation, identity verification, and complete logging are required.

Three-Tier Role-Based Access Control

Admin

Full System Administration · KMS / License / Users

Operator

Certificate Monitoring and Alert Handling · Cannot Modify System Settings

Viewer

Read-Only Access · Suitable for Auditors and Management

Core Security Capabilities

MFA

TOTP + 10 One-Time Backup Codes

Sensitive Field Encryption

AES-256-GCM encryption for connection passwords and keys at rest

Account Security Policies

bcrypt Hashing · Login Failure Lockout · Dual JWT Tokens

Complete Audit Logs

Complete Audit Logs

Two-Tier Data Protection for FIPS Compliance

Choose from software-based encryption to hardware-grade protection based on compliance needs. Both tiers use the same data model, so upgrading requires no architectural rebuild.

Level 1

Software Protection

All sensitive data is stored using AES-256-GCM software encryption, with keys derived from the JWT secret configured during deployment. Enabled by default with no additional hardware required.

  • Virtual Agent Connection Passwords
  • CA Account Keys / API Tokens
  • MFA Secrets and Backup Codes
Level 2

HSM Integration

Integrates with Hardware Security Modules (HSMs), where key generation and protection occur entirely within hardware to meet FIPS 140-level compliance requirements.

  • Keys Never Leave the HSM in Plaintext
  • Meets Financial / Government FIPS-Level Requirements
  • Same Data Model for Seamless Upgrades

Zentra CMS Ecosystem Integration:Preserve Your Existing PKI and KMS Investments

Act as the orchestration layer that connects certificate assets scattered across your environment.

Zentra KMS

External Key Management Integration

HashiCorp Vault

PKI Secrets Engine

ADCS / EJBCA

Windows Enterprise CA

Java KeyStore

JKS / PKCS#12

ACME

Let's Encrypt, etc.

SMTP / Notification Channels

Email Alert Forwarding

Six Typical Use Cases

If your security environment matches any of the following scenarios, this platform is built for you.

Across Data Centers

Certificates are distributed across multiple DCs / regions, making centralized inventory difficult.

Multiple CAs

Use multiple internal CAs such as Vault, ADCS, EJBCA, and smallstep at the same time.

Mixed Windows / Linux Environments

Need one tool to cover multiple formats and stores such as CNG, JKS, and PEM.

Thousands of Certificates

With thousands of endpoints, manual inspection is no longer practical.

HSM and Cloud KMS

Critical private keys are stored in HSMs / cloud KMS and require unified visibility.

Regulatory Audit Requirements

Compliance scenarios such as finance, healthcare, government, ISO 27001, and SOC 2.

Why Do Enterprises Trust Zentra CMS?

Zentra CMS transforms certificate management from fragmented, manual, reactive firefighting into centralized, automated, proactively monitored enterprise asset governance—turning certificates into controlled assets instead of unmanaged risks.

Comparison Item
Traditional Approach
Zentra CMS
Certificate Inventory
Manual Records / Excel
Automatic Agent Discovery
Expiration Alerts
Reactive Firefighting
Proactive Alerts with Custom Thresholds
Cross-Platform Support
Separate Tool for Each Platform
Unified Windows / Linux / macOS / JKS
Role Separation
Shared Accounts
Three-Tier RBAC + MFA
Audit Trail
None or Fragmented
Complete Audit Logs
Deployment Scalability
Architecture Rework
Flexible Agent Expansion with License Control

Turn Certificate Management into a Strategic Asset

Start with a PoC and experience how Zentra CMS brings centralized, automated, and auditable certificate governance to your enterprise. Transform certificate management from reactive IT operations into a strategic asset for enterprise security and business continuity.

Schedule a Product Demo

A 1-hour online demonstration tailored to your environment.

30-Day PoC Validation

Deploy in your test environment to validate automated discovery, monitoring, and renewal in practice.

Production Deployment

Complete implementation consulting and annual support plans.

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