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key_rsa resource

Use the key_rsa Chef InSpec audit resource to test RSA public/private keypairs.

This resource is mainly useful when used in conjunction with the x509_certificate resource, but it can also be used for checking RSA-based SSH keys.

Availability

Install

This resource is distributed with Chef InSpec and is automatically available for use.

Version

This resource first became available in v1.18.0 of InSpec.

Syntax

An key_rsa resource block declares a key file to be tested.

describe key_rsa('certificate.key') do
  it { should be_private }
  it { should be_public }
  its('public_key') { should match "PUBLIC_KEY" }
  its('key_length') { should eq 2048 }
end

You can use an optional passphrase with key_rsa

describe key_rsa('certificate.key', 'passphrase') do
  it { should be_private }
end

Properties

public_key (String)

The public_key property returns the public part of the RSA key pair

describe key_rsa('/etc/pki/www.example.com.key') do
  its('public_key') { should match "RSA_PUBLIC_KEY" }
end

private_key (String)

The private_key property returns the private key or the RSA key pair.

describe key_rsa('/etc/pki/www.example.com.key') do
  its('private_key') { should match "RSA_PRIVATE_KEY" }
end

key_length

The key_length property allows testing the number of bits in the key pair.

describe key_rsa('/etc/pki/www.example.com.key') do
  its('key_length') { should eq 2048 }
end

Matchers

For a full list of available matchers, see our Universal Matchers page.

This resource has the following special matchers.

public?

To verify if a key is public use the following:

describe key_rsa('/etc/pki/www.example.com.key') do
  it { should be_public }
end

private?

This property verifies that the key includes a private key:

describe key_rsa('/etc/pki/www.example.com.key') do
  it { should be_private }
end
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