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#! /usr/bin/env perl
# Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
use strict;
use warnings;
use OpenSSL::Test qw(:DEFAULT data_file srctop_file);
use OpenSSL::Test::Utils;
#Tests for the dhparam CLI application
setup("test_dhparam");
plan skip_all => "DH is not supported in this build"
if disabled("dh");
plan tests => 21;
my $fipsconf = srctop_file("test", "fips-and-base.cnf");
sub checkdhparams {
my $file = shift; #Filename containing params
my $type = shift; #PKCS3 or X9.42?
my $gen = shift; #2, 5 or something else (0 is "something else")?
my $format = shift; #DER or PEM?
my $bits = shift; #Number of bits in p
my $keybits = shift; #Recommended private key bits
my $pemtype;
my $readtype;
my $readbits = 0;
my $genline;
if (-T $file) {
#Text file. Check it looks like PEM
open(PEMFILE, '<', $file) or die $!;
if (my $firstline = <PEMFILE>) {
$firstline =~ s/\R$//;
if ($firstline eq "-----BEGIN DH PARAMETERS-----") {
$pemtype = "PKCS3";
} elsif ($firstline eq "-----BEGIN X9.42 DH PARAMETERS-----") {
$pemtype = "X9.42";
} else {
$pemtype = "";
}
} else {
$pemtype = "";
}
close(PEMFILE);
ok(($format eq "PEM") && defined $pemtype, "Checking format is PEM");
} else {
ok($format eq "DER", "Checking format is DER");
#No PEM type in this case, so we just set the pemtype to the expected
#type so that we never fail that part of the test
$pemtype = $type;
}
my @textdata = run(app(['openssl', 'dhparam', '-in', $file, '-noout',
'-text', '-inform', $format]), capture => 1);
chomp(@textdata);
#Trim trailing whitespace
@textdata = grep { s/\s*$//g } @textdata;
if (grep { $_ =~ 'Q:' } @textdata) {
$readtype = "X9.42";
} else {
$readtype = "PKCS3";
}
ok(($type eq $pemtype) && ($type eq $readtype),
"Checking parameter type is ".$type." ($pemtype, $readtype)");
if (defined $textdata[0] && $textdata[0] =~ /DH Parameters: \((\d+) bit\)/) {
$readbits = $1;
}
ok($bits == $readbits, "Checking number of bits is $bits");
if ($gen == 2 || $gen == 5) {
#For generators 2 and 5 the value appears on the same line
$genline = "G: $gen (0x$gen)";
} else {
#For any other generator the value appears on the following line
$genline = "G:";
}
ok((grep { (index($_, $genline) + length ($genline)) == length ($_)} @textdata),
"Checking generator is correct");
if ($keybits) {
my $keybits_line = "recommended-private-length: $keybits bits";
ok((grep { (index($_, $keybits_line) + length($keybits_line))
== length($_) } @textdata),
"Checking recommended private key bits is correct");
}
}
#Test some "known good" parameter files to check that we can read them
subtest "Read: 1024 bit PKCS3 params, generator 2, PEM file" => sub {
plan tests => 4;
checkdhparams(data_file("pkcs3-2-1024.pem"), "PKCS3", 2, "PEM", 1024);
};
subtest "Read: 1024 bit PKCS3 params, generator 5, PEM file" => sub {
plan tests => 4;
checkdhparams(data_file("pkcs3-5-1024.pem"), "PKCS3", 5, "PEM", 1024);
};
subtest "Read: 2048 bit PKCS3 params, generator 2, PEM file" => sub {
plan tests => 4;
checkdhparams(data_file("pkcs3-2-2048.pem"), "PKCS3", 2, "PEM", 2048);
};
subtest "Read: 1024 bit X9.42 params, PEM file" => sub {
plan tests => 4;
checkdhparams(data_file("x942-0-1024.pem"), "X9.42", 0, "PEM", 1024);
};
subtest "Read: 1024 bit PKCS3 params, generator 2, DER file" => sub {
plan tests => 4;
checkdhparams(data_file("pkcs3-2-1024.der"), "PKCS3", 2, "DER", 1024);
};
subtest "Read: 1024 bit PKCS3 params, generator 5, DER file" => sub {
plan tests => 4;
checkdhparams(data_file("pkcs3-5-1024.der"), "PKCS3", 5, "DER", 1024);
};
subtest "Read: 2048 bit PKCS3 params, generator 2, DER file" => sub {
plan tests => 4;
checkdhparams(data_file("pkcs3-2-2048.der"), "PKCS3", 2, "DER", 2048);
};
subtest "Read: 1024 bit X9.42 params, DER file" => sub {
checkdhparams(data_file("x942-0-1024.der"), "X9.42", 0, "DER", 1024);
};
#Test that generating parameters of different types creates what we expect. We
#use 512 for the size for speed reasons. Don't use this in real applications!
subtest "Generate: 512 bit PKCS3 params, generator 2, PEM file" => sub {
plan tests => 6;
ok(run(app([ 'openssl', 'dhparam', '-out', 'gen-pkcs3-2-512.pem',
'512' ])));
checkdhparams("gen-pkcs3-2-512.pem", "PKCS3", 2, "PEM", 512, 125);
};
subtest "Generate: 512 bit PKCS3 params, explicit generator 2, PEM file" => sub {
plan tests => 6;
ok(run(app([ 'openssl', 'dhparam', '-out', 'gen-pkcs3-exp2-512.pem', '-2',
'512' ])));
checkdhparams("gen-pkcs3-exp2-512.pem", "PKCS3", 2, "PEM", 512, 125);
};
subtest "Generate: 512 bit PKCS3 params, generator 5, PEM file" => sub {
plan tests => 6;
ok(run(app([ 'openssl', 'dhparam', '-out', 'gen-pkcs3-5-512.pem', '-5',
'512' ])));
checkdhparams("gen-pkcs3-5-512.pem", "PKCS3", 5, "PEM", 512, 125);
};
subtest "Generate: 512 bit PKCS3 params, generator 2, explicit PEM file" => sub {
plan tests => 6;
ok(run(app([ 'openssl', 'dhparam', '-out', 'gen-pkcs3-2-512.exp.pem',
'-outform', 'PEM', '512' ])));
checkdhparams("gen-pkcs3-2-512.exp.pem", "PKCS3", 2, "PEM", 512, 125);
};
SKIP: {
skip "Skipping tests that require DSA", 4 if disabled("dsa");
subtest "Generate: 512 bit X9.42 params, generator 0, PEM file" => sub {
plan tests => 5;
ok(run(app([ 'openssl', 'dhparam', '-out', 'gen-x942-0-512.pem',
'-dsaparam', '512' ])));
checkdhparams("gen-x942-0-512.pem", "X9.42", 0, "PEM", 512);
};
subtest "Generate: 512 bit X9.42 params, explicit generator 2, PEM file" => sub {
plan tests => 1;
#Expected to fail - you cannot select a generator with '-dsaparam'
ok(!run(app([ 'openssl', 'dhparam', '-out', 'gen-x942-exp2-512.pem', '-2',
'-dsaparam', '512' ])));
};
subtest "Generate: 512 bit X9.42 params, generator 5, PEM file" => sub {
plan tests => 1;
#Expected to fail - you cannot select a generator with '-dsaparam'
ok(!run(app([ 'openssl', 'dhparam', '-out', 'gen-x942-5-512.pem',
'-5', '-dsaparam', '512' ])));
};
subtest "Generate: 512 bit X9.42 params, generator 0, DER file" => sub {
plan tests => 5;
ok(run(app([ 'openssl', 'dhparam', '-out', 'gen-x942-0-512.der',
'-dsaparam', '-outform', 'DER', '512' ])));
checkdhparams("gen-x942-0-512.der", "X9.42", 0, "DER", 512);
};
}
SKIP: {
skip "Skipping tests that are only supported in a fips build with security ".
"checks", 4 if (disabled("fips") || disabled("fips-securitychecks"));
$ENV{OPENSSL_CONF} = $fipsconf;
ok(!run(app(['openssl', 'dhparam', '-check', '512'])),
"Generating 512 bit DH params should fail in FIPS mode");
ok(run(app(['openssl', 'dhparam', '-provider', 'default', '-propquery',
'?fips!=yes', '-check', '512'])),
"Generating 512 bit DH params should succeed in FIPS mode using".
" non-FIPS property query");
SKIP: {
skip "Skipping tests that require DSA", 2 if disabled("dsa");
ok(!run(app(['openssl', 'dhparam', '-dsaparam', '-check', '512'])),
"Generating 512 bit DSA-style DH params should fail in FIPS mode");
ok(run(app(['openssl', 'dhparam', '-provider', 'default', '-propquery',
'?fips!=yes', '-dsaparam', '-check', '512'])),
"Generating 512 bit DSA-style DH params should succeed in FIPS".
" mode using non-FIPS property query");
}
delete $ENV{OPENSSL_CONF};
}
ok(run(app(["openssl", "dhparam", "-noout", "-text"],
stdin => data_file("pkcs3-2-1024.pem"))),
"stdinbuffer input test that uses BIO_gets");
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