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Key Management Service:Overview

Last Updated:Mar 31, 2026

Certificates Manager provides a highly available and secure system that handles the full lifecycle of cryptographic keys and digital certificates — from generating certificate signing requests (CSRs) and importing certificate chains to verifying digital signatures and checking certificate validity.

Architecture

Applications that need certificates interact with Certificates Manager to generate CSRs and import or export digital certificates and their certificate chains. Hardware security modules (HSMs) protect all digital keys and certificates throughout their lifecycle.

Architecture

Capabilities

  • Generates CSRs and imports or exports digital certificates and their certificate chains

  • Verifies digital signatures and checks certificate validity

  • Stores and generates keys and certificates using HSMs, as described in Overview

  • Supports Rivest–Shamir–Adleman (RSA) 2048, elliptic curve (EC) P256, and EC SM2 public key algorithms

  • Supports the X.509 v3 certificate format and complies with public key infrastructure (PKI) and certificate authority (CA) standards

  • Provides multiple API operations for integrating certificate management into your development workflow, accelerating product deployment and rollout of certificate-related features

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