AWS Private CA Adds Partitioned CRLs for Scale, Compliance
🔒 AWS Private Certificate Authority now supports partitioned Certificate Revocation Lists (CRLs) to scale revocation handling up to 100 million certificates per CA. Partitioning breaks revocation data into ~1 MB CRL partitions and binds certificates to partitions using a critical Issuer Distribution Point (IDP) extension, allowing validators to match CDP and IDP URIs for accurate checks. The feature is backward compatible, RFC5280-compliant, configurable in the console (including S3 setup), and carries no charge beyond AWS Private CA and Amazon S3 usage.
