Assistance Needed for Configuring External Key Manager with Google Cloud EKM for HYOK Scenario.

[Jisa]

Business Description:

We are integrating Google Cloud Platform (GCP) with our existing Key Management System (KMS) to leverage the External Key Manager (EKM) feature. Our goal is to implement a Hold Your Own Key (HYOK) scenario where we manage our cryptographic keys externally and use GCP for encryption and decryption operations.

Use Case:

Our primary use case involves creating and managing external keys using a key URI. We need to understand the exact response format and structure that GCP accepts from the key URI to ensure seamless integration and avoid errors such as the "External key error: Could not find a key resource" that we have encountered.

Problem Description:

We are currently facing issues while creating external cryptographic keys using the key URI in Google Cloud KMS. Despite configuring the key URI correctly, we receive a 404 error indicating that the key resource could not be found. We need clarity on the required response format from the key URI that GCP expects to successfully create and manage external keys.