mirror of
https://github.com/inspec/inspec
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192 lines
6.7 KiB
Markdown
192 lines
6.7 KiB
Markdown
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---
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title: The dh_params Resource
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---
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# dh_params
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Use the `dh_params` InSpec audit resource to test Diffie-Hellman (DH) parameters.
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## Syntax
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A `dh_params` resource block declares a parameter file to be tested.
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describe dh_params('/path/to/file.dh_pem') do
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it { should be_dh_params }
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it { should be_valid }
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its('generator') { should eq 2 }
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its('modulus') { should eq '00:91:a0:15:89:e5:bc:38:93:12:02:fc:...' }
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its('prime_length') { should eq 2048 }
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its('pem') { should eq '-----BEGIN DH PARAMETERS...' }
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its('text') { should eq 'PKCS#3 DH Parameters: (2048 bit)...' }
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end
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## Supported Properties
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### dh_params?
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Verify whether file contains DH parameters:
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describe dh_params('/path/to/file.dh_pem') do
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it { should be_dh_params }
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end
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### valid?
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Verify whether DH parameters are valid:
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describe dh_params('/path/to/file.dh_pem') do
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it { should be_valid }
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end
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### generator (Integer)
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Verify generator used for the Diffie-Hellman operation:
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describe dh_params('/path/to/file.dh_pem') do
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its('generator') { should eq 2 }
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end
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### modulus (String)
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Verify prime modulus used for the Diffie-Hellman operation:
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describe dh_params('/path/to/file.dh_pem') do
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its('modulus') { should eq '00:91:a0:15:89:e5:bc:38:93:12:02:fc:...' }
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end
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Example using multi-line string:
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describe dh_params('/path/to/file.dh_pem') do
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its('modulus') do
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# regex removes all whitespace
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should eq <<-EOF.gsub(/[[:space:]]+/, '')
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00:91:a0:15:89:e5:bc:38:93:12:02:fc:91:a2:85:
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f7:f7:29:63:2e:d3:4e:7a:86:f7:ee:84:fe:42:d0:
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48:bc:9c:91:d5:54:f8:78:1d:c0:41:78:a2:c4:ac:
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1a:24:8b:9d:88:55:98:0b:ac:a7:23:eb:c2:aa:2b:
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2e:a9:f9:af:d4:8e:4e:11:bc:7f:35:a2:ac:da:3a:
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ef:f0:25:6c:9a:a4:fd:00:28:76:86:2c:57:87:67:
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30:5d:b1:d6:5b:22:8f:72:a1:ea:de:8b:ef:9e:33:
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1a:40:92:68:85:02:54:02:09:fa:c0:60:c1:3c:4e:
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28:26:db:ed:25:8e:38:21:56:40:dc:c0:c0:66:1f:
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2b:32:c3:b4:78:a9:26:94:ea:f7:41:28:b2:f5:5b:
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01:38:0c:46:09:85:26:4d:69:12:8d:95:0f:35:e2:
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e6:4e:47:3a:86:dd:8a:b2:fe:45:15:27:d8:59:c2:
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3c:f4:62:ff:5f:74:e9:77:92:50:47:36:2b:05:57:
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60:ee:7b:a1:60:cc:1c:7a:2b:77:18:8a:37:f7:c7:
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31:3e:15:cb:15:7f:7b:66:96:fb:c6:be:7d:d6:03:
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5e:0d:60:75:2b:5b:62:2a:a3:37:b6:34:f9:fe:96:
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4c:f6:c5:e3:a1:52:af:01:c1:4f:c7:42:a0:be:ed:
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cd:13
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EOF
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end
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end
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### prime_length (Integer)
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Verify length of prime modulus used for the Diffie-Hellman operation:
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describe dh_params('/path/to/file.dh_pem') do
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its('prime_length') { should eq 2048 }
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end
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### pem (String)
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Verify `pem` output of DH parameters:
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describe dh_params('/path/to/file.dh_pem') do
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its('pem') { should eq '-----BEGIN DH PARAMETERS...' }
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end
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Example using multi-line string:
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its('pem') do
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# regex removes all leading spaces
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should eq <<-EOF.gsub(/^[[:blank:]]+/, '')
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-----BEGIN DH PARAMETERS-----
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MIIBCAKCAQEAkaAVieW8OJMSAvyRooX39yljLtNOeob37oT+QtBIvJyR1VT4eB3A
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QXiixKwaJIudiFWYC6ynI+vCqisuqfmv1I5OEbx/NaKs2jrv8CVsmqT9ACh2hixX
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h2cwXbHWWyKPcqHq3ovvnjMaQJJohQJUAgn6wGDBPE4oJtvtJY44IVZA3MDAZh8r
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MsO0eKkmlOr3QSiy9VsBOAxGCYUmTWkSjZUPNeLmTkc6ht2Ksv5FFSfYWcI89GL/
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X3Tpd5JQRzYrBVdg7nuhYMwceit3GIo398cxPhXLFX97Zpb7xr591gNeDWB1K1ti
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KqM3tjT5/pZM9sXjoVKvAcFPx0Kgvu3NEwIBAg==
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-----END DH PARAMETERS-----
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EOF
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end
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Verify via `openssl dhparam` command:
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$ openssl dhparam -in /path/to/file.dh_pem
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-----BEGIN DH PARAMETERS-----
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MIIBCAKCAQEAkaAVieW8OJMSAvyRooX39yljLtNOeob37oT+QtBIvJyR1VT4eB3A
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QXiixKwaJIudiFWYC6ynI+vCqisuqfmv1I5OEbx/NaKs2jrv8CVsmqT9ACh2hixX
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h2cwXbHWWyKPcqHq3ovvnjMaQJJohQJUAgn6wGDBPE4oJtvtJY44IVZA3MDAZh8r
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MsO0eKkmlOr3QSiy9VsBOAxGCYUmTWkSjZUPNeLmTkc6ht2Ksv5FFSfYWcI89GL/
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X3Tpd5JQRzYrBVdg7nuhYMwceit3GIo398cxPhXLFX97Zpb7xr591gNeDWB1K1ti
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KqM3tjT5/pZM9sXjoVKvAcFPx0Kgvu3NEwIBAg==
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-----END DH PARAMETERS-----
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### text (String)
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Verify human-readable text output of DH parameters:
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describe dh_params('/path/to/file.dh_pem') do
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its('text') { should eq 'PKCS#3 DH Parameters: (2048 bit)...' }
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end
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Example using multi-line string:
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its('text') do
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# regex removes 2 leading spaces
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should eq <<-EOF.gsub(/^[[:blank:]]{2}/, '')
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PKCS#3 DH Parameters: (2048 bit)
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prime:
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00:91:a0:15:89:e5:bc:38:93:12:02:fc:91:a2:85:
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f7:f7:29:63:2e:d3:4e:7a:86:f7:ee:84:fe:42:d0:
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48:bc:9c:91:d5:54:f8:78:1d:c0:41:78:a2:c4:ac:
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1a:24:8b:9d:88:55:98:0b:ac:a7:23:eb:c2:aa:2b:
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2e:a9:f9:af:d4:8e:4e:11:bc:7f:35:a2:ac:da:3a:
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ef:f0:25:6c:9a:a4:fd:00:28:76:86:2c:57:87:67:
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30:5d:b1:d6:5b:22:8f:72:a1:ea:de:8b:ef:9e:33:
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1a:40:92:68:85:02:54:02:09:fa:c0:60:c1:3c:4e:
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28:26:db:ed:25:8e:38:21:56:40:dc:c0:c0:66:1f:
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2b:32:c3:b4:78:a9:26:94:ea:f7:41:28:b2:f5:5b:
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01:38:0c:46:09:85:26:4d:69:12:8d:95:0f:35:e2:
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e6:4e:47:3a:86:dd:8a:b2:fe:45:15:27:d8:59:c2:
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3c:f4:62:ff:5f:74:e9:77:92:50:47:36:2b:05:57:
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60:ee:7b:a1:60:cc:1c:7a:2b:77:18:8a:37:f7:c7:
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31:3e:15:cb:15:7f:7b:66:96:fb:c6:be:7d:d6:03:
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5e:0d:60:75:2b:5b:62:2a:a3:37:b6:34:f9:fe:96:
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4c:f6:c5:e3:a1:52:af:01:c1:4f:c7:42:a0:be:ed:
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cd:13
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generator: 2 (0x2)
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EOF
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end
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Verify via `openssl dhparam` command:
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$ openssl dhparam -in /path/to/file.dh_pem -noout -text
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PKCS#3 DH Parameters: (2048 bit)
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prime:
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00:91:a0:15:89:e5:bc:38:93:12:02:fc:91:a2:85:
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f7:f7:29:63:2e:d3:4e:7a:86:f7:ee:84:fe:42:d0:
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48:bc:9c:91:d5:54:f8:78:1d:c0:41:78:a2:c4:ac:
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1a:24:8b:9d:88:55:98:0b:ac:a7:23:eb:c2:aa:2b:
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2e:a9:f9:af:d4:8e:4e:11:bc:7f:35:a2:ac:da:3a:
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ef:f0:25:6c:9a:a4:fd:00:28:76:86:2c:57:87:67:
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30:5d:b1:d6:5b:22:8f:72:a1:ea:de:8b:ef:9e:33:
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1a:40:92:68:85:02:54:02:09:fa:c0:60:c1:3c:4e:
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28:26:db:ed:25:8e:38:21:56:40:dc:c0:c0:66:1f:
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2b:32:c3:b4:78:a9:26:94:ea:f7:41:28:b2:f5:5b:
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01:38:0c:46:09:85:26:4d:69:12:8d:95:0f:35:e2:
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e6:4e:47:3a:86:dd:8a:b2:fe:45:15:27:d8:59:c2:
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3c:f4:62:ff:5f:74:e9:77:92:50:47:36:2b:05:57:
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60:ee:7b:a1:60:cc:1c:7a:2b:77:18:8a:37:f7:c7:
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31:3e:15:cb:15:7f:7b:66:96:fb:c6:be:7d:d6:03:
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5e:0d:60:75:2b:5b:62:2a:a3:37:b6:34:f9:fe:96:
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4c:f6:c5:e3:a1:52:af:01:c1:4f:c7:42:a0:be:ed:
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cd:13
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generator: 2 (0x2)
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