DigiCert Trust Lifecycle Manager is a PKI certificate lifecycle management platform built on the DigiCert ONE platform. It provides centralized visibility and control over public and private certificates across hybrid and multi-cloud environments, regardless of the issuing Certificate Authority. Key capabilities include: - **Certificate Discovery:** Scans networks and cloud environments to build a full certificate inventory. Supports import from any CA/PKI system, auto-tagging, and structured inventory management. - **Central Governance:** Enforces enterprise PKI policies to eliminate weak keys, deprecated algorithms, and unauthorized CAs. Provides role-based administration with self-service capabilities and centralized audit/compliance controls. - **Expiration Alerting:** Assigns asset owners to certificates and uses a dynamic rule engine to prioritize alerts based on business impact. Supports multiple notification channels including email, SMS, and Slack. - **Automation:** Automates certificate issuance, renewal, and revocation using agent and agentless approaches. Supports ACME, EST, SCEP, and CMPv2 protocols, along with a REST API and self-service portal. - **Use Case Coverage:** Addresses certificate management for servers and infrastructure (with Active Directory multi-forest support), user and device authentication (UEM integration, Zero Trust VPN/WiFi, S/MIME), cloud workloads (containers, secret management vaults, IaC), and private/internal PKI. - **Quantum Readiness:** Supports post-quantum cryptography readiness for future-proofing PKI deployments.