AWS External Key Store (XKS)
AWS eXternal Key Store XKS enables next-level control and ownership of keys for a growing range of AWS services that use KMS. With XKS, AWS users can externally generate, host, and manage Root Keys for data encryption keys that are used in AWS KMS.
Google External Key Manager (EKM)
In November 2019, Google announced the External Key Manager (EKM) service at the Google Cloud Next UK conference. Google Cloud’s External Key Manager is a next-level control for encryption keys, with a wide and growing range of over 20 Google services running in the Google Cloud Platform (GCP).
