The Evolution of Public Key Infrastructure (PKI) in the Quantum Era

Public Key Infrastructure (PKI) is undergoing its most significant transformation in decades. Enterprises are grappling with diminishing in-house expertise, expanding machine-to-machine communications, and the urgent need to prepare for Post-Quantum Cryptography (PQC). These pressures are pushing organizations toward modern PKI deployment models that emphasize flexibility, automation, and quantum readiness.

According to ABI Research, the global PKI market will reach US$14.9 billion by 2030, driven by zero-trust adoption, quantum readiness, and the rise of Non-Human Identities (NHIs). Vendors leading this evolution—such as Keyfactor, Entrust, and DigiCert—are redefining PKI as a cornerstone of digital trust in the quantum era.

Topics Covered

• Modern Design Challenges: Costly, siloed, and maintenance-heavy legacy CAD systems

• Market Forecast: PKI market growth from US$5.4 billion in 2025 to US$14.9 billion by 2030 (22.3% CAGR)

• Key Drivers: Quantum readiness, zero-trust adoption, supply chain complexity, and cloud integration

• Deployment Models: On-premises, managed, and hybrid PKI adoption trends across regions and industries

• Convergence with CLM: How Certificate Lifecycle Management (CLM) platforms are reshaping enterprise PKI

• Quantum Preparedness: Transitioning to crypto-agile, quantum-safe architectures

• Emerging Use Cases: PKI for IoT, DevOps, identity, and digital media provenance

• Leading Vendors: Keyfactor, Entrust, DigiCert, Sectigo, Garantir, and AppViewX

• Strategic Recommendations: Building modular, AI-assisted, and post-quantum-ready PKI systems

Download the whitepaper to understand how PKI is evolving in the quantum era—exploring market trends, leading vendors, and strategies to future-proof digital trust for the post-quantum world.