How to Encrypt Object storage with Custom Keys

Click on the burger menu and select Object storage & Archive storage under Storage

Go to Buckets and choose the specific Bucket where you want to change the key

Select the Assign option under Encryption Key

Select Vault & Vault key and click on assign

As shown in the screen below,

an error occurred, and we are unable to assign a custom key

Therefore, create a policy to resolve this error

The policy permits the object storage service to use a custom key

Policy is created

Now again try to assign key

Finally, Default encryption key replaced with custom managed keys.