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nixpkgs/pkgs/development/perl-modules/net-snmp-add-sha-algorithms.patch
Jordan Williams b44ec15ebc
perlPackages.NetSNMP: add patch to support newer SHA algorithms 
The aged perlPackages.NetSNMP library does not support modern SHA algorithms for authentication.
It's possible to enable support for these newer protocols with a patch.
The patch is taken from the OpenBSD ports tree:
https://github.com/openbsd/ports/blob/master/net/p5-Net-SNMP/patches/patch-lib_Net_SNMP_Security_USM_pm
It enables support for SHA 224, 256, 384, and 512.
Tests are also include in the patch for these additional algorithms.
2024-10-25 08:27:10 -05:00

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From https://github.com/openbsd/ports/blob/master/net/p5-Net-SNMP/patches/patch-lib_Net_SNMP_Security_USM_pm
Tests for the additional algorithms have also been added.
diff --git a/MANIFEST b/MANIFEST
index 3430564..d3dd7f0 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -40,3 +40,7 @@ t/usm-sha1-3des.t
t/usm-sha1-aes.t
t/usm-sha1-cfb192aes.t
t/usm-sha1-des.t
+t/usm-sha224-aes.t
+t/usm-sha256-aes.t
+t/usm-sha384-aes.t
+t/usm-sha512-aes.t
diff --git a/lib/Net/SNMP/Security/USM.pm b/lib/Net/SNMP/Security/USM.pm
index a76ef56..0bcd52c 100644
--- a/lib/Net/SNMP/Security/USM.pm
+++ b/lib/Net/SNMP/Security/USM.pm
@@ -26,8 +26,9 @@ use Net::SNMP::Message qw(
use Crypt::DES();
use Digest::MD5();
use Digest::SHA();
-use Digest::HMAC_MD5();
-use Digest::HMAC_SHA1();
+
+use Digest::SHA qw( hmac_sha1 hmac_sha224 hmac_sha256 hmac_sha384 hmac_sha512 );
+use Digest::HMAC_MD5 qw ( hmac_md5 );
## Version of the Net::SNMP::Security::USM module
@@ -41,7 +42,9 @@ our @EXPORT_OK;
our %EXPORT_TAGS = (
authprotos => [
- qw( AUTH_PROTOCOL_NONE AUTH_PROTOCOL_HMACMD5 AUTH_PROTOCOL_HMACSHA )
+ qw( AUTH_PROTOCOL_NONE AUTH_PROTOCOL_HMACMD5 AUTH_PROTOCOL_HMACSHA
+ AUTH_PROTOCOL_HMACSHA224 AUTH_PROTOCOL_HMACSHA256
+ AUTH_PROTOCOL_HMACSHA384 AUTH_PROTOCOL_HMACSHA512 )
],
levels => [
qw( SECURITY_LEVEL_NOAUTHNOPRIV SECURITY_LEVEL_AUTHNOPRIV
@@ -64,9 +67,13 @@ $EXPORT_TAGS{ALL} = [ @EXPORT_OK ];
## RCC 3414 - Authentication protocols
-sub AUTH_PROTOCOL_NONE { '1.3.6.1.6.3.10.1.1.1' } # usmNoAuthProtocol
-sub AUTH_PROTOCOL_HMACMD5 { '1.3.6.1.6.3.10.1.1.2' } # usmHMACMD5AuthProtocol
-sub AUTH_PROTOCOL_HMACSHA { '1.3.6.1.6.3.10.1.1.3' } # usmHMACSHAAuthProtocol
+sub AUTH_PROTOCOL_NONE { '1.3.6.1.6.3.10.1.1.1' } # usmNoAuthProtocol
+sub AUTH_PROTOCOL_HMACMD5 { '1.3.6.1.6.3.10.1.1.2' } # usmHMACMD5AuthProtocol
+sub AUTH_PROTOCOL_HMACSHA { '1.3.6.1.6.3.10.1.1.3' } # usmHMACSHAAuthProtocol
+sub AUTH_PROTOCOL_HMACSHA224 { '1.3.6.1.6.3.10.1.1.4' } # usmHMAC128SHA224AuthProtocol
+sub AUTH_PROTOCOL_HMACSHA256 { '1.3.6.1.6.3.10.1.1.5' } # usmHMAC192SHA256AuthProtocol
+sub AUTH_PROTOCOL_HMACSHA384 { '1.3.6.1.6.3.10.1.1.6' } # usmHMAC256SHA384AuthProtocol
+sub AUTH_PROTOCOL_HMACSHA512 { '1.3.6.1.6.3.10.1.1.7' } # usmHMAC384SHA512AuthProtocol
## RFC 3414 - Privacy protocols
@@ -125,6 +132,7 @@ sub new
'_time_epoc' => time(), # snmpEngineBoots epoc
'_user_name' => q{}, # securityName
'_auth_data' => undef, # Authentication data
+ '_auth_maclen' => undef, # MAC length
'_auth_key' => undef, # authKey
'_auth_password' => undef, # Authentication password
'_auth_protocol' => AUTH_PROTOCOL_HMACMD5, # authProtocol
@@ -281,10 +289,10 @@ sub generate_request_msg
if ($pdu->security_level() > SECURITY_LEVEL_NOAUTHNOPRIV) {
# Save the location to fill in msgAuthenticationParameters later
- $auth_location = $msg->length() + 12 + length $pdu_buffer;
+ $auth_location = $msg->length() + $this->{_auth_maclen} + length $pdu_buffer;
# Set the msgAuthenticationParameters to all zeros
- $auth_params = pack 'x12';
+ $auth_params = pack "x$this->{_auth_maclen}";
}
if (!defined $msg->prepare(OCTET_STRING, $auth_params)) {
@@ -419,12 +427,12 @@ sub process_incoming_msg
# to compute the HMAC properly.
if (my $len = length $auth_params) {
- if ($len != 12) {
+ if ($len != $this->{_auth_maclen}) {
return $this->_error(
'The msgAuthenticationParameters length of %d is invalid', $len
);
}
- substr ${$msg->reference}, ($msg->index() - 12), 12, pack 'x12';
+ substr ${$msg->reference}, ($msg->index() - $this->{_auth_maclen}), $this->{_auth_maclen}, pack "x$this->{_auth_maclen}";
}
# msgPrivacyParameters::=OCTET STRING
@@ -748,6 +756,18 @@ sub _auth_password
quotemeta AUTH_PROTOCOL_HMACMD5, AUTH_PROTOCOL_HMACMD5,
'(?:hmac-)?sha(?:-?1|-96)?', AUTH_PROTOCOL_HMACSHA,
quotemeta AUTH_PROTOCOL_HMACSHA, AUTH_PROTOCOL_HMACSHA,
+ '(?:hmac-)?sha(?:-?224)', AUTH_PROTOCOL_HMACSHA224,
+ 'usmHMAC128SHA224AuthProtocol', AUTH_PROTOCOL_HMACSHA224,
+ quotemeta AUTH_PROTOCOL_HMACSHA224,AUTH_PROTOCOL_HMACSHA224,
+ '(?:hmac-)?sha(?:-?256)', AUTH_PROTOCOL_HMACSHA256,
+ 'usmHMAC192SHA256AuthProtocol', AUTH_PROTOCOL_HMACSHA256,
+ quotemeta AUTH_PROTOCOL_HMACSHA256,AUTH_PROTOCOL_HMACSHA256,
+ '(?:hmac-)?sha(?:-?384)', AUTH_PROTOCOL_HMACSHA384,
+ 'usmHMAC256SHA384AuthProtocol', AUTH_PROTOCOL_HMACSHA384,
+ quotemeta AUTH_PROTOCOL_HMACSHA384,AUTH_PROTOCOL_HMACSHA384,
+ '(?:hmac-)?sha(?:-?512)', AUTH_PROTOCOL_HMACSHA512,
+ 'usmHMAC384SHA512AuthProtocol', AUTH_PROTOCOL_HMACSHA512,
+ quotemeta AUTH_PROTOCOL_HMACSHA512,AUTH_PROTOCOL_HMACSHA512,
};
sub _auth_protocol
@@ -1100,7 +1120,7 @@ sub _authenticate_outgoing_msg
}
# Set the msgAuthenticationParameters
- substr ${$msg->reference}, -$auth_location, 12, $this->_auth_hmac($msg);
+ substr ${$msg->reference}, -$auth_location, $this->{_auth_maclen}, $this->_auth_hmac($msg);
return TRUE;
}
@@ -1126,7 +1146,7 @@ sub _auth_hmac
return q{} if (!defined($this->{_auth_data}) || !defined $msg);
return substr
- $this->{_auth_data}->reset()->add(${$msg->reference()})->digest(), 0, 12;
+ $this->{_auth_data}(${$msg->reference()}, $this->{_auth_key}), 0, $this->{_auth_maclen};
}
sub _auth_data_init
@@ -1141,16 +1161,35 @@ sub _auth_data_init
if ($this->{_auth_protocol} eq AUTH_PROTOCOL_HMACMD5) {
- $this->{_auth_data} =
- Digest::HMAC_MD5->new($this->{_auth_key});
+ $this->{_auth_data} = \&hmac_md5;
+ $this->{_auth_maclen} = 12;
} elsif ($this->{_auth_protocol} eq AUTH_PROTOCOL_HMACSHA) {
- $this->{_auth_data} =
- Digest::HMAC_SHA1->new($this->{_auth_key});
+ $this->{_auth_data} = \&hmac_sha1;
+ $this->{_auth_maclen} = 12;
+
+ } elsif ($this->{_auth_protocol} eq AUTH_PROTOCOL_HMACSHA224) {
+
+ $this->{_auth_data} = \&hmac_sha224;
+ $this->{_auth_maclen} = 16;
+
+ } elsif ($this->{_auth_protocol} eq AUTH_PROTOCOL_HMACSHA256) {
+
+ $this->{_auth_data} = \&hmac_sha256;
+ $this->{_auth_maclen} = 24;
+
+ } elsif ($this->{_auth_protocol} eq AUTH_PROTOCOL_HMACSHA384) {
+
+ $this->{_auth_data} = \&hmac_sha384;
+ $this->{_auth_maclen} = 32;
+
+ } elsif ($this->{_auth_protocol} eq AUTH_PROTOCOL_HMACSHA512) {
+
+ $this->{_auth_data} = \&hmac_sha512;
+ $this->{_auth_maclen} = 48;
} else {
-
return $this->_error(
'The authProtocol "%s" is unknown', $this->{_auth_protocol}
);
@@ -1628,6 +1667,10 @@ sub _auth_key_validate
{
AUTH_PROTOCOL_HMACMD5, [ 16, 'HMAC-MD5' ],
AUTH_PROTOCOL_HMACSHA, [ 20, 'HMAC-SHA1' ],
+ AUTH_PROTOCOL_HMACSHA224, [ 28, 'HMAC-SHA224' ],
+ AUTH_PROTOCOL_HMACSHA256, [ 32, 'HMAC-SHA256' ],
+ AUTH_PROTOCOL_HMACSHA384, [ 48, 'HMAC-SHA384' ],
+ AUTH_PROTOCOL_HMACSHA512, [ 64, 'HMAC-SHA512' ],
};
if (!exists $key_len->{$this->{_auth_protocol}}) {
@@ -1783,8 +1826,12 @@ sub _password_localize
my $digests =
{
- AUTH_PROTOCOL_HMACMD5, 'Digest::MD5',
- AUTH_PROTOCOL_HMACSHA, 'Digest::SHA',
+ AUTH_PROTOCOL_HMACMD5, ['Digest::MD5', ],
+ AUTH_PROTOCOL_HMACSHA, ['Digest::SHA', 1],
+ AUTH_PROTOCOL_HMACSHA224, ['Digest::SHA', 224],
+ AUTH_PROTOCOL_HMACSHA256, ['Digest::SHA', 256],
+ AUTH_PROTOCOL_HMACSHA384, ['Digest::SHA', 384],
+ AUTH_PROTOCOL_HMACSHA512, ['Digest::SHA', 512],
};
if (!exists $digests->{$this->{_auth_protocol}}) {
@@ -1793,7 +1840,12 @@ sub _password_localize
);
}
- my $digest = $digests->{$this->{_auth_protocol}}->new;
+ my $digest;
+ if (!defined($digests->{$this->{_auth_protocol}}[1])) {
+ $digest = $digests->{$this->{_auth_protocol}}[0]->new;
+ } else {
+ $digest = $digests->{$this->{_auth_protocol}}[0]->new($digests->{$this->{_auth_protocol}}[1]);
+ }
# Create the initial digest using the password
diff --git a/t/usm-sha224-aes.t b/t/usm-sha224-aes.t
new file mode 100644
index 0000000..e7d118e
--- /dev/null
+++ b/t/usm-sha224-aes.t
@@ -0,0 +1,169 @@
+# -*- mode: perl -*-
+# ============================================================================
+
+# Test of the SNMPv3 User-based Security Model.
+
+# Copyright (c) 2001-2009 David M. Town <dtown@cpan.org>.
+# Copyright (c) 2024 Michal Josef Špaček <skim@cpan.org>.
+# All rights reserved.
+
+# This program is free software; you may redistribute it and/or modify it
+# under the same terms as the Perl 5 programming language system itself.
+
+# ============================================================================
+
+use strict;
+use Test;
+
+BEGIN
+{
+ $| = 1;
+ $^W = 1;
+ plan tests => 7
+}
+
+use Net::SNMP::Message qw(SEQUENCE OCTET_STRING FALSE);
+
+#
+# Load the Net::SNMP::Security::USM module
+#
+
+eval 'use Net::SNMP::Security::USM; use Crypt::Rijndael;';
+
+my $skip = ($@ =~ /locate (:?\S+\.pm)/) ? $@ : FALSE;
+
+#
+# 1. Create the Net::SNMP::Security::USM object
+#
+
+my ($u, $e);
+
+eval
+{
+ ($u, $e) = Net::SNMP::Security::USM->new(
+ -username => 'dtown',
+ -authpassword => 'maplesyrup',
+ -authprotocol => 'sha224',
+ -privpassword => 'maplesyrup',
+ -privprotocol => 'aes',
+ );
+
+ # "Perform" discovery...
+ $u->_engine_id_discovery(pack 'x11H2', '02');
+
+ # ...and synchronization
+ $u->_synchronize(10, time);
+};
+
+skip(
+ $skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Security::USM object'
+);
+
+#
+# 2. Check the localized authKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->auth_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '0bd8827c6e29f8065e08e09237f177e410f69b90e1782be682075674',
+ 'Invalid authKey calculated'
+);
+
+#
+# 3. Check the localized privKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->priv_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '0bd8827c6e29f8065e08e09237f177e4',
+ 'Invalid privKey calculated'
+);
+
+#
+# 4. Create and initialize a Message
+#
+
+my $m;
+
+eval
+{
+ ($m, $e) = Net::SNMP::Message->new();
+ $m->prepare(SEQUENCE, pack('H*', 'deadbeef') x 8);
+ $e = $m->error();
+};
+
+skip($skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Message object');
+
+#
+# 5. Calculate the HMAC
+#
+
+my $h;
+
+eval
+{
+ $h = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, $@, q{}, 'Calculate the HMAC failed');
+
+#
+# 6. Encrypt/descrypt the Message
+#
+
+my $henc;
+
+eval
+{
+ my $engine_boots = 0;
+ my $engine_time = 1710186219;
+ my $salt;
+ my $len = $m->length();
+ my $buff = $m->clear();
+ $u->{_engine_boots} = $engine_boots;
+ $u->{_engine_time} = $engine_time;
+ my $encrypted = $u->_encrypt_data($m, $salt, $buff);
+ $henc = unpack 'H*', $encrypted;
+ $m->append($encrypted);
+ substr $salt, 0, 0, pack 'NN', $engine_boots, $engine_time;
+ $u->_decrypt_data($m, $salt, $m->process(OCTET_STRING));
+ $e = $u->error();
+ # Remove padding if necessary
+ if ($len -= $m->length()) {
+ substr ${$m->reference()}, $len, -$len, q{};
+ }
+};
+
+skip(
+ $skip,
+ ($@ || $e || $henc),
+ '042228c5467793ab001f4be546de4b990f90998b09d43f2baaffb52a5d36457cef3b5ab7',
+ 'Privacy failed',
+);
+
+#
+# 7. Check the HMAC
+#
+
+my $h2;
+
+eval
+{
+ $h2 = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, ($@ || $h2), $h, 'Authentication failed');
+
+# ============================================================================
diff --git a/t/usm-sha256-aes.t b/t/usm-sha256-aes.t
new file mode 100644
index 0000000..4521187
--- /dev/null
+++ b/t/usm-sha256-aes.t
@@ -0,0 +1,169 @@
+# -*- mode: perl -*-
+# ============================================================================
+
+# Test of the SNMPv3 User-based Security Model.
+
+# Copyright (c) 2001-2009 David M. Town <dtown@cpan.org>.
+# Copyright (c) 2024 Michal Josef Špaček <skim@cpan.org>.
+# All rights reserved.
+
+# This program is free software; you may redistribute it and/or modify it
+# under the same terms as the Perl 5 programming language system itself.
+
+# ============================================================================
+
+use strict;
+use Test;
+
+BEGIN
+{
+ $| = 1;
+ $^W = 1;
+ plan tests => 7
+}
+
+use Net::SNMP::Message qw(SEQUENCE OCTET_STRING FALSE);
+
+#
+# Load the Net::SNMP::Security::USM module
+#
+
+eval 'use Net::SNMP::Security::USM; use Crypt::Rijndael;';
+
+my $skip = ($@ =~ /locate (:?\S+\.pm)/) ? $@ : FALSE;
+
+#
+# 1. Create the Net::SNMP::Security::USM object
+#
+
+my ($u, $e);
+
+eval
+{
+ ($u, $e) = Net::SNMP::Security::USM->new(
+ -username => 'dtown',
+ -authpassword => 'maplesyrup',
+ -authprotocol => 'sha256',
+ -privpassword => 'maplesyrup',
+ -privprotocol => 'aes',
+ );
+
+ # "Perform" discovery...
+ $u->_engine_id_discovery(pack 'x11H2', '02');
+
+ # ...and synchronization
+ $u->_synchronize(10, time);
+};
+
+skip(
+ $skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Security::USM object'
+);
+
+#
+# 2. Check the localized authKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->auth_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '8982e0e549e866db361a6b625d84cccc11162d453ee8ce3a6445c2d6776f0f8b',
+ 'Invalid authKey calculated'
+);
+
+#
+# 3. Check the localized privKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->priv_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '8982e0e549e866db361a6b625d84cccc',
+ 'Invalid privKey calculated'
+);
+
+#
+# 4. Create and initialize a Message
+#
+
+my $m;
+
+eval
+{
+ ($m, $e) = Net::SNMP::Message->new();
+ $m->prepare(SEQUENCE, pack('H*', 'deadbeef') x 8);
+ $e = $m->error();
+};
+
+skip($skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Message object');
+
+#
+# 5. Calculate the HMAC
+#
+
+my $h;
+
+eval
+{
+ $h = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, $@, q{}, 'Calculate the HMAC failed');
+
+#
+# 6. Encrypt/descrypt the Message
+#
+
+my $henc;
+
+eval
+{
+ my $engine_boots = 0;
+ my $engine_time = 1710186219;
+ my $salt;
+ my $len = $m->length();
+ my $buff = $m->clear();
+ $u->{_engine_boots} = $engine_boots;
+ $u->{_engine_time} = $engine_time;
+ my $encrypted = $u->_encrypt_data($m, $salt, $buff);
+ $henc = unpack 'H*', $encrypted;
+ $m->append($encrypted);
+ substr $salt, 0, 0, pack 'NN', $engine_boots, $engine_time;
+ $u->_decrypt_data($m, $salt, $m->process(OCTET_STRING));
+ $e = $u->error();
+ # Remove padding if necessary
+ if ($len -= $m->length()) {
+ substr ${$m->reference()}, $len, -$len, q{};
+ }
+};
+
+skip(
+ $skip,
+ ($@ || $e || $henc),
+ '0422863d06faf464369a298b66062e54374ba3b4a0f862162d25ba72130038f8befc9e21',
+ 'Privacy failed',
+);
+
+#
+# 7. Check the HMAC
+#
+
+my $h2;
+
+eval
+{
+ $h2 = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, ($@ || $h2), $h, 'Authentication failed');
+
+# ============================================================================
diff --git a/t/usm-sha384-aes.t b/t/usm-sha384-aes.t
new file mode 100644
index 0000000..e88ca4a
--- /dev/null
+++ b/t/usm-sha384-aes.t
@@ -0,0 +1,169 @@
+# -*- mode: perl -*-
+# ============================================================================
+
+# Test of the SNMPv3 User-based Security Model.
+
+# Copyright (c) 2001-2009 David M. Town <dtown@cpan.org>.
+# Copyright (c) 2024 Michal Josef Špaček <skim@cpan.org>.
+# All rights reserved.
+
+# This program is free software; you may redistribute it and/or modify it
+# under the same terms as the Perl 5 programming language system itself.
+
+# ============================================================================
+
+use strict;
+use Test;
+
+BEGIN
+{
+ $| = 1;
+ $^W = 1;
+ plan tests => 7
+}
+
+use Net::SNMP::Message qw(SEQUENCE OCTET_STRING FALSE);
+
+#
+# Load the Net::SNMP::Security::USM module
+#
+
+eval 'use Net::SNMP::Security::USM; use Crypt::Rijndael;';
+
+my $skip = ($@ =~ /locate (:?\S+\.pm)/) ? $@ : FALSE;
+
+#
+# 1. Create the Net::SNMP::Security::USM object
+#
+
+my ($u, $e);
+
+eval
+{
+ ($u, $e) = Net::SNMP::Security::USM->new(
+ -username => 'dtown',
+ -authpassword => 'maplesyrup',
+ -authprotocol => 'sha384',
+ -privpassword => 'maplesyrup',
+ -privprotocol => 'aes',
+ );
+
+ # "Perform" discovery...
+ $u->_engine_id_discovery(pack 'x11H2', '02');
+
+ # ...and synchronization
+ $u->_synchronize(10, time);
+};
+
+skip(
+ $skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Security::USM object'
+);
+
+#
+# 2. Check the localized authKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->auth_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '3b298f16164a11184279d5432bf169e2d2a48307de02b3d3f7e2b4f36eb6f0455a53689a3937eea07319a633d2ccba78',
+ 'Invalid authKey calculated'
+);
+
+#
+# 3. Check the localized privKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->priv_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '3b298f16164a11184279d5432bf169e2',
+ 'Invalid privKey calculated'
+);
+
+#
+# 4. Create and initialize a Message
+#
+
+my $m;
+
+eval
+{
+ ($m, $e) = Net::SNMP::Message->new();
+ $m->prepare(SEQUENCE, pack('H*', 'deadbeef') x 8);
+ $e = $m->error();
+};
+
+skip($skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Message object');
+
+#
+# 5. Calculate the HMAC
+#
+
+my $h;
+
+eval
+{
+ $h = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, $@, q{}, 'Calculate the HMAC failed');
+
+#
+# 6. Encrypt/descrypt the Message
+#
+
+my $henc;
+
+eval
+{
+ my $engine_boots = 0;
+ my $engine_time = 1710186219;
+ my $salt;
+ my $len = $m->length();
+ my $buff = $m->clear();
+ $u->{_engine_boots} = $engine_boots;
+ $u->{_engine_time} = $engine_time;
+ my $encrypted = $u->_encrypt_data($m, $salt, $buff);
+ $henc = unpack 'H*', $encrypted;
+ $m->append($encrypted);
+ substr $salt, 0, 0, pack 'NN', $engine_boots, $engine_time;
+ $u->_decrypt_data($m, $salt, $m->process(OCTET_STRING));
+ $e = $u->error();
+ # Remove padding if necessary
+ if ($len -= $m->length()) {
+ substr ${$m->reference()}, $len, -$len, q{};
+ }
+};
+
+skip(
+ $skip,
+ ($@ || $e || $henc),
+ '0422850967bbff81be49aefadf9b6ee3eedb9093609fcfc813a21bdf09b469965923bfc0',
+ 'Privacy failed',
+);
+
+#
+# 7. Check the HMAC
+#
+
+my $h2;
+
+eval
+{
+ $h2 = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, ($@ || $h2), $h, 'Authentication failed');
+
+# ============================================================================
diff --git a/t/usm-sha512-aes.t b/t/usm-sha512-aes.t
new file mode 100644
index 0000000..c5eadf3
--- /dev/null
+++ b/t/usm-sha512-aes.t
@@ -0,0 +1,169 @@
+# -*- mode: perl -*-
+# ============================================================================
+
+# Test of the SNMPv3 User-based Security Model.
+
+# Copyright (c) 2001-2009 David M. Town <dtown@cpan.org>.
+# Copyright (c) 2024 Michal Josef Špaček <skim@cpan.org>.
+# All rights reserved.
+
+# This program is free software; you may redistribute it and/or modify it
+# under the same terms as the Perl 5 programming language system itself.
+
+# ============================================================================
+
+use strict;
+use Test;
+
+BEGIN
+{
+ $| = 1;
+ $^W = 1;
+ plan tests => 7
+}
+
+use Net::SNMP::Message qw(SEQUENCE OCTET_STRING FALSE);
+
+#
+# Load the Net::SNMP::Security::USM module
+#
+
+eval 'use Net::SNMP::Security::USM; use Crypt::Rijndael;';
+
+my $skip = ($@ =~ /locate (:?\S+\.pm)/) ? $@ : FALSE;
+
+#
+# 1. Create the Net::SNMP::Security::USM object
+#
+
+my ($u, $e);
+
+eval
+{
+ ($u, $e) = Net::SNMP::Security::USM->new(
+ -username => 'dtown',
+ -authpassword => 'maplesyrup',
+ -authprotocol => 'sha512',
+ -privpassword => 'maplesyrup',
+ -privprotocol => 'aes',
+ );
+
+ # "Perform" discovery...
+ $u->_engine_id_discovery(pack 'x11H2', '02');
+
+ # ...and synchronization
+ $u->_synchronize(10, time);
+};
+
+skip(
+ $skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Security::USM object'
+);
+
+#
+# 2. Check the localized authKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->auth_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '22a5a36cedfcc085807a128d7bc6c2382167ad6c0dbc5fdff856740f3d84c099ad1ea87a8db096714d9788bd544047c9021e4229ce27e4c0a69250adfcffbb0b',
+ 'Invalid authKey calculated'
+);
+
+#
+# 3. Check the localized privKey
+#
+
+eval
+{
+ $e = unpack 'H*', $u->priv_key();
+};
+
+skip(
+ $skip,
+ ($@ || $e),
+ '22a5a36cedfcc085807a128d7bc6c238',
+ 'Invalid privKey calculated'
+);
+
+#
+# 4. Create and initialize a Message
+#
+
+my $m;
+
+eval
+{
+ ($m, $e) = Net::SNMP::Message->new();
+ $m->prepare(SEQUENCE, pack('H*', 'deadbeef') x 8);
+ $e = $m->error();
+};
+
+skip($skip, ($@ || $e), q{}, 'Failed to create Net::SNMP::Message object');
+
+#
+# 5. Calculate the HMAC
+#
+
+my $h;
+
+eval
+{
+ $h = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, $@, q{}, 'Calculate the HMAC failed');
+
+#
+# 6. Encrypt/descrypt the Message
+#
+
+my $henc;
+
+eval
+{
+ my $engine_boots = 0;
+ my $engine_time = 1710186219;
+ my $salt;
+ my $len = $m->length();
+ my $buff = $m->clear();
+ $u->{_engine_boots} = $engine_boots;
+ $u->{_engine_time} = $engine_time;
+ my $encrypted = $u->_encrypt_data($m, $salt, $buff);
+ $henc = unpack 'H*', $encrypted;
+ $m->append($encrypted);
+ substr $salt, 0, 0, pack 'NN', $engine_boots, $engine_time;
+ $u->_decrypt_data($m, $salt, $m->process(OCTET_STRING));
+ $e = $u->error();
+ # Remove padding if necessary
+ if ($len -= $m->length()) {
+ substr ${$m->reference()}, $len, -$len, q{};
+ }
+};
+
+skip(
+ $skip,
+ ($@ || $e || $henc),
+ '0422bae4cdb263a0936b189051e9b1759183b16d07c9a7d8bf633d6dd2e817a2ac2fe742',
+ 'Privacy failed',
+);
+
+#
+# 7. Check the HMAC
+#
+
+my $h2;
+
+eval
+{
+ $h2 = unpack 'H*', $u->_auth_hmac($m);
+};
+
+skip($skip, ($@ || $h2), $h, 'Authentication failed');
+
+# ============================================================================
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