Single service comparison

Azure Key Vault Certificates treat a certificate as a first-class vault object with an attached policy and issuer, supporting automated renewals and import/export as PFX/PEM through a unified Key Vault data plane and REST/SDK surface. Huawei CCM splits this into SCM for public SSL certificates obtained via partner CAs and PCA for private CA hierarchies and private certificates; neither exposes the single certificate-object-plus-policy abstraction that Key Vault does, and API parity for programmatic issuance and rotation is narrower.

Integrations and operational responsibility differ materially. Azure relies on Managed Identity and RBAC to surface certificates to App Service, AKS Secrets Store CSI, Event Grid rotation events, and Automation runbooks for end-to-end auto-rotation. Huawei CCM mainly deploys certificates to ELB, WAF, and CDN and issues private certificates through PCA, with DEW/KPS covering secret and key material rather than certificate lifecycle orchestration; architects must build and schedule the rotation workflow that Key Vault automates.

Scaling, HA, and regional footprint are not equivalent. Key Vault is a regional multi-tenant service with soft-delete, purge protection, and geo-replicated secrets per region. Huawei CCM is a managed regional service optimised for SSL certificate procurement and PCA issuance; enterprise-grade HA, cross-region replication semantics, and soft-delete behavior differ, so certificate residency, failover, and recovery objectives should be re-validated against CCM and DEW limits rather than assumed from Azure.

Start with an assessment that classifies each Azure certificate by type (public CA-issued vs private/internal), consumer (ELB-equivalent load balancer, WAF, app, container), renewal frequency, and policy-driven automation. Map public TLS certificates to Huawei SCM and internal/PKI certificates to PCA, but explicitly inventory Key Vault certificate objects, policies, issuers, tags, and rotation triggers because Huawei has no automatic equivalent for the certificate-policy-plus-issuer abstraction that drives hands-off renewal.

For data and configuration migration, export certificates from Key Vault as PFX/PEM and import them into CCM SCM (external certificates) or issue replacements through PCA for private CAs. Recreate CA hierarchies in PCA where a private root or intermediate exists, and re-establish trust chains. Where applications consumed secrets via Managed Identity, replan access using IAM and DEW/KPS for secret material, since the Key Vault certificate-object API and identity bindings do not map one-to-one to CCM; expect code and IaC changes rather than a lift-and-shift.

Build rotation and deployment automation explicitly. CCM and PCA do not provide Key Vault-style policy-driven auto-renewal plus Event Grid events, so useCTS, FunctionGraph, or a scheduled CI job to monitor expiry and push renewed certificates to ELB, WAF, and CDN targets. Validatechaft deployment, documented renewal runbooks, and alerting well before cutover, and run a parallel period where both Azure-issued and Huawei-issued certificates are trusted to avoid outage from chain differences.

Treat gaps and cost model as separate workstreams. Acknowledge unsupported paths: there is no documented one-click Huawei migration tool for Azure Key Vault certificate objects, and feature parity for ACME, automation, and SDK coverage is partial. Recalculate TCO using CCM SSL certificate pricing, PCA CA and issuance fees, DEW/KPS key and API call charges, and the labor cost of the automation you must build, rather than assuming equivalence to Azure per-certificate or per-vault tiers.