aws_kms_keys

Use the aws_kms_keys InSpec audit resource to test properties of some or all AWS KMS Keys.

AWS Key Management Service (KMS) is a managed service that makes creating and controlling your encryption keys for your data easier. KMS uses Hardware Security Modules (HSMs) to protect the security of your keys.

AWS Key Management Service is integrated with several other AWS services to help you protect the data you store with these services.

Each AWS KMS Key is uniquely identified by its key-id or key-arn.


Availability

Installation

This resource is distributed along with InSpec itself. You can use it automatically.

Version

This resource first became available in v2.0.16 of InSpec.

Syntax

An aws_kms_keys resource block uses an optional filter to select a group of KMS Keys and then tests that group.

# Verify the number of KMS keys in the AWS account
describe aws_kms_keys do
  its('entries.count') { should cmp 10 }
end


Examples

The following examples show how to use this InSpec audit resource.

As this is the initial release of aws_kms_keys, its limited functionality precludes examples.


Properties

  • entries, key_arns, key_ids


Property Examples

entries

Provides access to the raw results of a query. This can be useful for checking counts and other advanced operations.

# Allow at most 100 KMS Keys on the account
describe aws_kms_keys do
  its('entries.count') { should be <= 100}
end

key_arns

Provides a list of key arns for all KMS Keys in the AWS account.

describe aws_kms_keys do
  its('key_arns') { should include('arn:aws:kms:us-east-1::key/key-id') }
end

key_ids

Provides a list of key ids for all KMS Keys in the AWS account.

describe aws_kms_keys do
  its('key_ids') { should include('fd7e608b-f435-4186-b8b5-111111111111') }
end


Matchers

This InSpec audit resource has the following special matchers. For a full list of available matchers, please visit our matchers page.

exists

The control will pass if the filter returns at least one result. Use should_not if you expect zero matches.

# Verify that at least one KMS Key exists.
describe aws_kms_keys
  it { should exist }
end

AWS Permissions

Your Principal will need the kms:ListKeys action with Effect set to Allow.

You can find detailed documentation at Actions, Resources, and Condition Keys for AWS Key Management Service.