From 5f8f98024f8955a0327b67f873923757a51d082c Mon Sep 17 00:00:00 2001
From: Vojtech Polasek <vpolasek@redhat.com>
Date: Tue, 19 Jan 2021 12:32:07 +0100
Subject: [PATCH 1/7] add rule and remediations
---
.../ansible/shared.yml | 13 +++++
.../bash/shared.sh | 7 +++
.../oval/shared.xml | 38 +++++++++++++
.../rule.yml | 57 +++++++++++++++++++
5 files changed, 115 insertions(+), 1 deletion(-)
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml
new file mode 100644
index 0000000000..cefba7db05
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/ansible/shared.yml
@@ -0,0 +1,13 @@
+# platform = Red Hat Enterprise Linux 7,Oracle Linux 7
+# reboot = false
+# strategy = restrict
+# complexity = low
+# disruption = low
+
+- name: "Configure sshd to use approved MACs"
+ lineinfile:
+ path: /etc/ssh/sshd_config
+ line: 'MACs hmac-sha2-512,hmac-sha2-256'
+ state: present
+ regexp: '^[\s]*MACs[\s]+(hmac-sha2-512(?=[\w,-@]+|$),?)?(hmac-sha2-256(?=[\w,-@]+|$),?)?[\s]*(?:#.*)?$'
+ create: True
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh
new file mode 100644
index 0000000000..c76190fb96
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh
@@ -0,0 +1,7 @@
+# platform = multi_platform_wrlinux,Red Hat Enterprise Linux 7,Oracle Linux 7
+
+if grep -q -P '^[[:space:]]*MACs[[:space:]]+' /etc/ssh/sshd_config; then
+ sed -i 's/^\s*MACs.*/MACs hmac-sha2-512,hmac-sha2-256/' /etc/ssh/sshd_config
+else
+ echo "MACs hmac-sha2-512,hmac-sha2-256" >> /etc/ssh/sshd_config
+fi
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
new file mode 100644
index 0000000000..d7fbd9f0ed
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
@@ -0,0 +1,38 @@
+<def-group>
+ <definition class="compliance" id="sshd_use_approved_macs_ordered_stig" version="1">
+ {{{ oval_metadata("Limit the Message Authentication Codes (MACs) to those which are FIPS-approved.") }}}
+ <criteria operator="AND">
+ <extend_definition comment="Installed OS is FIPS certified" definition_ref="installed_OS_is_FIPS_certified" />
+ <criteria comment="SSH is configured correctly or is not installed"
+ operator="OR">
+ <criteria comment="sshd is not installed" operator="AND">
+ <extend_definition comment="sshd is not required or requirement is unset"
+ definition_ref="sshd_not_required_or_unset" />
+ <extend_definition comment="rpm package openssh-server removed"
+ definition_ref="package_openssh-server_removed" />
+ </criteria>
+ <criteria comment="sshd is installed and configured" operator="AND">
+ <extend_definition comment="sshd is required or requirement is unset"
+ definition_ref="sshd_required_or_unset" />
+ <extend_definition comment="rpm package openssh-server installed"
+ definition_ref="package_openssh-server_installed" />
+ <criterion comment="Check MACs in /etc/ssh/sshd_config"
+ test_ref="test_sshd_use_approved_macs_ordered_stig" />
+ </criteria>
+ </criteria>
+ </criteria>
+ </definition>
+
+ <ind:textfilecontent54_test check="all" check_existence="all_exist"
+ comment="tests the value of MACs setting in the /etc/ssh/sshd_config file"
+ id="test_sshd_use_approved_macs_ordered_stig" version="1">
+ <ind:object object_ref="obj_sshd_use_approved_macs_ordered_stig" />
+ </ind:textfilecontent54_test>
+
+ <ind:textfilecontent54_object id="obj_sshd_use_approved_macs_ordered_stig" version="1">
+ <ind:filepath>/etc/ssh/sshd_config</ind:filepath>
+ <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,-@]+|$),?)?(hmac-sha2-256(?=[\w,-@]+|$),?)?[\s]*(?:#.*)?$</ind:pattern>
+ <ind:instance datatype="int">1</ind:instance>
+ </ind:textfilecontent54_object>
+
+</def-group>
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml
new file mode 100644
index 0000000000..dc9f7dca7c
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/rule.yml
@@ -0,0 +1,57 @@
+documentation_complete: true
+
+prodtype: rhel7
+
+title: 'Use Only FIPS 140-2 Validated MACs'
+
+description: |-
+ Limit the MACs to those hash algorithms which are FIPS-approved.
+ The following line in <tt>/etc/ssh/sshd_config</tt>
+ demonstrates use of FIPS-approved MACs:
+ <pre>MACs hmac-sha2-512,hmac-sha2-256</pre>
+ This rule ensures that there are configured MACs mentioned
+ above (or their subset), keeping the given order of algorithms.
+
+rationale: |-
+ DoD Information Systems are required to use FIPS-approved cryptographic hash
+ functions. The only SSHv2 hash algorithms meeting this requirement is SHA2.
+
+severity: medium
+
+identifiers:
+ cce@rhel7: CCE-83398-8
+
+references:
+ disa: CCI-000068,CCI-000803,CCI-000877,CCI-001453,CCI-003123
+ srg: SRG-OS-000125-GPOS-00065,SRG-OS-000250-GPOS-00093,SRG-OS-000394-GPOS-00174
+ stigid@rhel7: RHEL-07-040400
+
+ocil_clause: 'MACs option is commented out or not using FIPS-approved hash algorithms'
+
+ocil: |-
+ Only FIPS-approved MACs should be used. To verify that only FIPS-approved
+ MACs are in use, run the following command:
+ <pre>$ sudo grep -i macs /etc/ssh/sshd_config</pre>
+ The output should contain only following MACs (or a subset) in the exact order:
+ <pre>hmac-sha2-512,hmac-sha2-256</pre>
+
+warnings:
+ - general: |-
+ The system needs to be rebooted for these changes to take effect.
+ - regulatory: |-
+ System Crypto Modules must be provided by a vendor that undergoes
+ FIPS-140 certifications.
+ FIPS-140 is applicable to all Federal agencies that use
+ cryptographic-based security systems to protect sensitive information
+ in computer and telecommunication systems (including voice systems) as
+ defined in Section 5131 of the Information Technology Management Reform
+ Act of 1996, Public Law 104-106. This standard shall be used in
+ designing and implementing cryptographic modules that Federal
+ departments and agencies operate or are operated for them under
+ contract. See <b>{{{ weblink(link="https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.140-2.pdf") }}}</b>
+ To meet this, the system has to have cryptographic software provided by
+ a vendor that has undergone this certification. This means providing
+ documentation, test results, design information, and independent third
+ party review by an accredited lab. While open source software is
+ capable of meeting this, it does not meet FIPS-140 unless the vendor
+ submits to this process.
From 18ea3b8671e15c06a5c1c864d9d1d67f4262189e Mon Sep 17 00:00:00 2001
From: Vojtech Polasek <vpolasek@redhat.com>
Date: Tue, 19 Jan 2021 12:32:25 +0100
Subject: [PATCH 2/7] add tests
---
.../tests/comment.fail.sh | 7 +++++++
.../tests/correct_reduced_list.pass.sh | 7 +++++++
.../tests/correct_scrambled.fail.sh | 7 +++++++
.../tests/correct_value.pass.sh | 7 +++++++
.../tests/line_not_there.fail.sh | 3 +++
.../tests/no_parameters.fail.sh | 7 +++++++
.../tests/wrong_value.fail.sh | 7 +++++++
7 files changed, 45 insertions(+)
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh
create mode 100644 linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh
new file mode 100644
index 0000000000..26bf18234c
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/comment.fail.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if grep -q "^MACs" /etc/ssh/sshd_config; then
+ sed -i "s/^MACs.*/# MACs hmac-sha2-512,hmac-sha2-256/" /etc/ssh/sshd_config
+else
+ echo "# ciphers MACs hmac-sha2-512,hmac-sha2-256" >> /etc/ssh/sshd_config
+fi
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh
new file mode 100644
index 0000000000..0d922cdee9
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_reduced_list.pass.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if grep -q "^MACs" /etc/ssh/sshd_config; then
+ sed -i "s/^MACs.*/MACs hmac-sha2-512/" /etc/ssh/sshd_config
+else
+ echo "MACs hmac-sha2-512" >> /etc/ssh/sshd_config
+fi
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh
new file mode 100644
index 0000000000..ce3f459352
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_scrambled.fail.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if grep -q "^MACs" /etc/ssh/sshd_config; then
+ sed -i "s/^MACs.*/MACs hmac-sha2-256,hmac-sha2-512/" /etc/ssh/sshd_config
+else
+ echo "MACs hmac-sha2-256,hmac-sha2-512" >> /etc/ssh/sshd_config
+fi
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh
new file mode 100644
index 0000000000..19da7102a7
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/correct_value.pass.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if grep -q "^MACs" /etc/ssh/sshd_config; then
+ sed -i "s/^MACs.*/MACs hmac-sha2-512,hmac-sha2-256/" /etc/ssh/sshd_config
+else
+ echo 'MACs hmac-sha2-512,hmac-sha2-256' >> /etc/ssh/sshd_config
+fi
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh
new file mode 100644
index 0000000000..fd1f19347a
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/line_not_there.fail.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+sed -i "/^MACs.*/d" /etc/ssh/sshd_config
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh
new file mode 100644
index 0000000000..44c07c6de0
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/no_parameters.fail.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if grep -q "^MACs" /etc/ssh/sshd_config; then
+ sed -i "s/^MACs.*/MACs /" /etc/ssh/sshd_config
+else
+ echo 'MACs ' >> /etc/ssh/sshd_config
+fi
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh
new file mode 100644
index 0000000000..cf56cd228f
--- /dev/null
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/tests/wrong_value.fail.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if grep -q "^MACs" /etc/ssh/sshd_config; then
+ sed -i "s/^MACs.*/MACs hmac-sha2-512,hmac-sha2-256,blahblah/" /etc/ssh/sshd_config
+else
+ echo "MACs hmac-sha2-512,hmac-sha2-256,blahblah" >> /etc/ssh/sshd_config
+fi
From a334b4b434adf92c94b8bd6bb888751782e70ad3 Mon Sep 17 00:00:00 2001
From: Vojtech Polasek <vpolasek@redhat.com>
Date: Tue, 19 Jan 2021 12:32:58 +0100
Subject: [PATCH 3/7] modify rhel7 stig profile
---
rhel7/profiles/stig.profile | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/rhel7/profiles/stig.profile b/rhel7/profiles/stig.profile
index 6c06a8ede6..17c781d3eb 100644
--- a/rhel7/profiles/stig.profile
+++ b/rhel7/profiles/stig.profile
@@ -28,7 +28,6 @@ selections:
- inactivity_timeout_value=15_minutes
- var_screensaver_lock_delay=5_seconds
- sshd_idle_timeout_value=10_minutes
- - sshd_approved_macs=stig
- var_accounts_fail_delay=4
- var_selinux_state=enforcing
- var_selinux_policy_name=targeted
@@ -259,7 +258,7 @@ selections:
- sshd_print_last_log
- sshd_disable_root_login
- sshd_allow_only_protocol2
- - sshd_use_approved_macs
+ - sshd_use_approved_macs_ordered_stig
- file_permissions_sshd_pub_key
- file_permissions_sshd_private_key
- sshd_disable_gssapi_auth
From df71fc735efa8754a73fab5d355d422c6e0ffa53 Mon Sep 17 00:00:00 2001
From: Vojtech Polasek <vpolasek@redhat.com>
Date: Tue, 19 Jan 2021 12:33:10 +0100
Subject: [PATCH 4/7] remove rhel7 stigid from sshd_use_approved_macs
---
.../services/ssh/ssh_server/sshd_use_approved_macs/rule.yml | 1 -
1 file changed, 1 deletion(-)
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml
index 394c733f51..d47eb443f5 100644
--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs/rule.yml
@@ -54,7 +54,6 @@ references:
nist-csf: PR.AC-1,PR.AC-3,PR.DS-5,PR.PT-4
srg: SRG-OS-000125-GPOS-00065,SRG-OS-000250-GPOS-00093,SRG-OS-000394-GPOS-00174
vmmsrg: SRG-OS-000033-VMM-000140,SRG-OS-000120-VMM-000600,SRG-OS-000478-VMM-001980,SRG-OS-000480-VMM-002000,SRG-OS-000396-VMM-001590
- stigid@rhel7: RHEL-07-040400
stigid@sle12: SLES-12-030180
isa-62443-2013: 'SR 1.1,SR 1.13,SR 1.2,SR 1.3,SR 1.4,SR 1.5,SR 1.7,SR 1.8,SR 1.9,SR 2.6,SR 3.1,SR 3.5,SR 3.8,SR 4.1,SR 4.3,SR 5.1,SR 5.2,SR 5.3,SR 7.1,SR 7.6'
isa-62443-2009: 4.3.3.5.1,4.3.3.6.6
From 9c24aaaba67f0123a82335672fd25aacd913caa4 Mon Sep 17 00:00:00 2001
From: Vojtech Polasek <vpolasek@redhat.com>
Date: Thu, 21 Jan 2021 11:43:16 +0100
Subject: [PATCH 5/7] simplify regex
---
.../sshd_use_approved_macs_ordered_stig/oval/shared.xml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
index d7fbd9f0ed..5973488661 100644
--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
@@ -31,7 +31,7 @@
<ind:textfilecontent54_object id="obj_sshd_use_approved_macs_ordered_stig" version="1">
<ind:filepath>/etc/ssh/sshd_config</ind:filepath>
- <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,-@]+|$),?)?(hmac-sha2-256(?=[\w,-@]+|$),?)?[\s]*(?:#.*)?$</ind:pattern>
+ <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,]+|$),?)?(hmac-sha2-256)?[\s]*(?:#.*)?$</ind:pattern>
<ind:instance datatype="int">1</ind:instance>
</ind:textfilecontent54_object>
From e3973f4c2988308a2d1a18e67a730a059f791336 Mon Sep 17 00:00:00 2001
From: Vojtech Polasek <vpolasek@redhat.com>
Date: Thu, 21 Jan 2021 11:55:19 +0100
Subject: [PATCH 6/7] make bash remediation more readable
---
.../sshd_use_approved_macs_ordered_stig/bash/shared.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh
index c76190fb96..f8f6f39bee 100644
--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/bash/shared.sh
@@ -1,6 +1,6 @@
# platform = multi_platform_wrlinux,Red Hat Enterprise Linux 7,Oracle Linux 7
-if grep -q -P '^[[:space:]]*MACs[[:space:]]+' /etc/ssh/sshd_config; then
+if grep -q -P '^\s*MACs\s+' /etc/ssh/sshd_config; then
sed -i 's/^\s*MACs.*/MACs hmac-sha2-512,hmac-sha2-256/' /etc/ssh/sshd_config
else
echo "MACs hmac-sha2-512,hmac-sha2-256" >> /etc/ssh/sshd_config
From e5c379ac8cbd7bd42b116d3a5473a78406a662fd Mon Sep 17 00:00:00 2001
From: Vojtech Polasek <vpolasek@redhat.com>
Date: Thu, 21 Jan 2021 13:05:18 +0100
Subject: [PATCH 7/7] one more small fix to oval regex
---
.../sshd_use_approved_macs_ordered_stig/oval/shared.xml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
index 5973488661..b5443b07c4 100644
--- a/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
+++ b/linux_os/guide/services/ssh/ssh_server/sshd_use_approved_macs_ordered_stig/oval/shared.xml
@@ -31,7 +31,7 @@
<ind:textfilecontent54_object id="obj_sshd_use_approved_macs_ordered_stig" version="1">
<ind:filepath>/etc/ssh/sshd_config</ind:filepath>
- <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w,-@]+)(hmac-sha2-512(?=[\w,]+|$),?)?(hmac-sha2-256)?[\s]*(?:#.*)?$</ind:pattern>
+ <ind:pattern operation="pattern match">^[\s]*(?i)MACs(?-i)[\s]+(?=[\w]+)(hmac-sha2-512(?=[\w,]+|$),?)?(hmac-sha2-256)?[\s]*(?:#.*)?$</ind:pattern>
<ind:instance datatype="int">1</ind:instance>
</ind:textfilecontent54_object>