Set up GCP Cloud HSM for Ranger KMS, KTS, and KeyHSM

How to integrate Ranger KMS and KTS with with the Google Cloud Platform (GCP) HSM service.

This task describes how to set up the Google Cloud Platform (GCP) hardware security moudule (HSM) service provided by Google. The process inlcudes setting up the GCP HSM service on a client (host), setting up KeyHSM and using the GCP HSM to validate keys.

You must:

Log in to the Google cloud console using your accout. (Requires Google account access).
Have Ranger Key Management System, Key Trustee Server and Key HSM installed in your environment.
Have Java (jdk1.8.0.232) installed.

See related topics for more information about installing Ranger KMS, KTS and KeyHSM.

Set Up Google Cloud HSM

Login to Google Cloud console using Cloudera account.
Create a generic service account by selecting or creating the Project.
Create the key for that generic service account you created in the previous step.
Download and save your generic service account key in JSON format.

note
You will use the generic service account key later in this process. Record the project ID, Location ID and JSON file.
In GCP Console > Key Management create the key ring.

Figure 1. Creating a key ring in Google Cloud Platform

This example shows a project gcp-eng-sdx-daily, service account keyhsm, and key ring KeyHSMRing.

Integrate GCP with KeyHSM

In your Key HSM root directory, copy the autthentication key (json file) you created in the setup process, and provided the appropriate access.
```
# rpm -ivh keytrustee-keyhsm-*.rpm
```
```
cd /usr/share/keytrustee-server-keyhsm/
chown keyhsm:keytrustee <key.filename>.json                
```

Set up the GCP HSM.

keyhsm setup googlecloudhsm

keyhsm.management.address=127.0.0.1
keyhsm.server.port=9090
google.cloud.hsm.key.ring=KeyHSMRing 

# Google App Credential File
google.cloud.hsm.app.cred.file=<authentication file>.json 

# Google HSM Project Id
google.cloud.hsm.project.id=<project ID> 

# Google HSM Location Id
google.cloud.hsm.location.id=<location ID>

Validate the Key HSM service.

$ service keyhsm validate

Check Key HSM is stopped             :[Successful]
Configuration Available              :[Successful]
Port 127.0.0.1:9090 available        :[Successful]
Unlimited-Strength JCE               :[Successful]
Validate cipher list                 :[Successful]
HSM availability                     :[Successful]
All services available:              :[Successful]

Start the Key HSM service.
```
$ service keyhsm start 
```

Configure KTS to trust the Key HSM server.

$ ktadmin keyhsm --server http://$(hostname -f):<port configured in setup> --trust

$ktadmin keyhsm --server http://127.0.0.1:9090 --trust

Restart Key HSM.
```
$ service keyhsm restart 
```
Restart the KTS from Cloudera Manager UI.

Test the HSM.

curl -k https://$(hostname -f):11371/test_hsm

Keys will be created in the Key ring on GCP.

Further keys for zone operation can be created using Ranger UI with keyadmin role credentials and also using hadoop commands.