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95 lines
2.2 KiB
Text
95 lines
2.2 KiB
Text
---
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title: The key_rsa Resource
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platform: os
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---
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# key_rsa
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Use the `key_rsa` InSpec audit resource to test RSA public/private keypairs.
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This resource is mainly useful when used in conjunction with the x509_certificate resource but it can also be used for checking SSH keys.
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<br>
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## Availability
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### Installation
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This resource is distributed along with InSpec itself. You can use it automatically.
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### Version
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This resource first became available in v1.18.0 of InSpec.
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## Syntax
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An `key_rsa` resource block declares a `key file` to be tested.
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describe key_rsa('mycertificate.key') do
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it { should be_private }
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it { should be_public }
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its('public_key') { should match "-----BEGIN PUBLIC KEY-----\n3597459df9f3982" }
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its('key_length') { should eq 2048 }
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end
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You can use an optional passphrase with `key_rsa`
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describe key_rsa('mycertificate.key', 'passphrase') do
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it { should be_private }
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end
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<br>
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## Properties
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* `public_key`, `private_key`, `key_length`
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<br>
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## Property Examples
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### public_key (String)
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The `public_key` property returns the public part of the RSA key pair
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describe key_rsa('/etc/pki/www.mywebsite.com.key') do
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its('public_key') { should match "-----BEGIN PUBLIC KEY-----\n3597459df9f3982......" }
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end
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### private_key (String)
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The `private_key` property returns the private key or the RSA key pair.
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describe key_rsa('/etc/pki/www.mywebsite.com.key') do
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its('private_key') { should match "-----BEGIN RSA PRIVATE KEY-----\nMIIJJwIBAAK......" }
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end
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### key_length
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The `key_length` property allows testing the number of bits in the key pair.
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describe key_rsa('/etc/pki/www.mywebsite.com.key') do
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its('key_length') { should eq 2048 }
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end
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<br>
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## Matchers
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For a full list of available matchers, please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
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### public?
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To verify if a key is public use the following:
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describe key_rsa('/etc/pki/www.mywebsite.com.key') do
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it { should be_public }
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end
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### private?
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This property verifies that the key includes a private key:
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describe key_rsa('/etc/pki/www.mywebsite.com.key') do
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it { should be_private }
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end
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