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aws_kms_keys resource

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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.

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

Parameters

This resource does not expect any parameters.

See also the AWS documentation on KS Keys.

Properties

Property Description
key_ids The IDs of the returned keys.
key_arns The Amazon Resource Names of the returned keys.
entries Provides access to the raw results of the query, which can be treated as an array of hashes.

Examples

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

Ensure a Key exists

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

Allow at most 100 KMS Keys on the account

describe aws_kms_keys do
  its('entries.count') { should be <= 100}
end

Matchers

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

exist

The control will pass if the describe returns at least one result.

Use should_not to test the entity should not exist.

describe aws_kms_keys do
  it { should exist }
end

describe aws_kms_keys.where( <property>: <value>) do
  it { should_not 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.

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