This extension is can only be used with an Amazon KMS account.
You must know how Amazon KMS works to use this extension. Please check the Amazon KMS docs.
Source: https://docs.aws.amazon.com/en_pv/kms/latest/APIReference/API_Operations.html
The following actions are available:
All actions need valid and granted AWS Credentials. AccessKey and SecretKey are required.
AWS.Code updated to v3.7.