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|
# -*- perl -*-
use strict;
use warnings;
use ExtUtils::PkgConfig ();
use File::Spec;
use File::Temp qw(tempfile);
use Test::More;
use Test::Exception;
use Config;
# Create the following certificate tree:
#
# + The root CA (self-signed)
# |
# `-+ An intermediate CA #1
# |
# `-+ An intermediate CA #2
# |
# `-- An user
#
# Then do the following:
#
# 1. Make a mail signed by an user private key and let it contain
# certificates of two intermediate CAs.
#
# 2. Verify the mail with only the root CA certificate and its
# key. Can we prove the mail is actually trustable?
my (%key, %csr, %crt);
do {
my $OPENSSL = do {
if (defined(my $prefix = ExtUtils::PkgConfig->variable('openssl', 'prefix'))) {
my $OPENSSL = $prefix . '/bin/openssl' . $Config{exe_ext};
if (-x $OPENSSL) {
diag "Using `$OPENSSL' to generate a keypair";
$OPENSSL;
}
else {
plan skip_all => q{Executable `openssl' was not found};
}
}
else {
plan skip_all => q{No package `openssl' found};
}
};
my $DEVNULL = File::Spec->devnull();
# Create the root CA.
do {
my ($conf_fh, $conf_file) = tempfile(UNLINK => 1);
print {$conf_fh} << 'EOF';
[ req ]
distinguished_name = req_distinguished_name
attributes = req_attributes
req_extensions = v3_ca
prompt = no
[ req_distinguished_name ]
C = JP
ST = Some-State
L = Some-Locality
O = Crypt::SMIME
OU = The Root CA
CN = ROOT
[ req_attributes ]
[ v3_ca ]
basicConstraints = CA:true
EOF
close $conf_fh;
(undef, $key{root}) = tempfile(UNLINK => 1);
(undef, $csr{root}) = tempfile(UNLINK => 1);
(undef, $crt{root}) = tempfile(UNLINK => 1);
system(qq{$OPENSSL genrsa -out $key{root} >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL req -new -key $key{root} -out $csr{root} -config $conf_file >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL x509 -in $csr{root} -out $crt{root} -req -signkey $key{root} -set_serial 1 -extfile $conf_file -extensions v3_ca >$DEVNULL 2>&1}) and die;
};
# Create an intermediate CA #1.
do {
my ($conf_fh, $conf_file) = tempfile(UNLINK => 1);
print {$conf_fh} << 'EOF';
[ req ]
distinguished_name = req_distinguished_name
attributes = req_attributes
req_extensions = v3_ca
prompt = no
[ req_distinguished_name ]
C = JP
ST = Some-State
L = Some-Locality
O = Crypt::SMIME
OU = An intermediate CA No.1
CN = INTERMED-1
[ req_attributes ]
[ v3_ca ]
basicConstraints = CA:true
EOF
close $conf_fh;
(undef, $key{intermed_1}) = tempfile(UNLINK => 1);
(undef, $csr{intermed_1}) = tempfile(UNLINK => 1);
(undef, $crt{intermed_1}) = tempfile(UNLINK => 1);
system(qq{$OPENSSL genrsa -out $key{intermed_1} >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL req -new -key $key{intermed_1} -out $csr{intermed_1} -config $conf_file >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL x509 -in $csr{intermed_1} -out $crt{intermed_1} -req -CA $crt{root} -CAkey $key{root} -set_serial 1 -extfile $conf_file -extensions v3_ca >$DEVNULL 2>&1}) and die;
};
# Create an intermediate CA #2.
do {
my ($conf_fh, $conf_file) = tempfile(UNLINK => 1);
print {$conf_fh} << 'EOF';
[ req ]
distinguished_name = req_distinguished_name
attributes = req_attributes
req_extensions = v3_ca
prompt = no
[ req_distinguished_name ]
C = JP
ST = Some-State
L = Some-Locality
O = Crypt::SMIME
OU = An intermediate CA No.2
CN = INTERMED-2
[ req_attributes ]
[ v3_ca ]
basicConstraints = CA:true
EOF
close $conf_fh;
(undef, $key{intermed_2}) = tempfile(UNLINK => 1);
(undef, $csr{intermed_2}) = tempfile(UNLINK => 1);
(undef, $crt{intermed_2}) = tempfile(UNLINK => 1);
system(qq{$OPENSSL genrsa -out $key{intermed_2} >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL req -new -key $key{intermed_2} -out $csr{intermed_2} -config $conf_file >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL x509 -in $csr{intermed_2} -out $crt{intermed_2} -req -CA $crt{intermed_1} -CAkey $key{intermed_1} -set_serial 1 -extfile $conf_file -extensions v3_ca >$DEVNULL 2>&1}) and die;
};
# Create an user.
do {
my ($conf_fh, $conf_file) = tempfile(UNLINK => 1);
print {$conf_fh} << 'EOF';
[ req ]
distinguished_name = req_distinguished_name
attributes = req_attributes
prompt = no
[ req_distinguished_name ]
C = JP
ST = Some-State
L = Some-Locality
O = Crypt::SMIME
OU = An user
CN = USER
[ req_attributes ]
EOF
close $conf_fh;
(undef, $key{user}) = tempfile(UNLINK => 1);
(undef, $csr{user}) = tempfile(UNLINK => 1);
(undef, $crt{user}) = tempfile(UNLINK => 1);
system(qq{$OPENSSL genrsa -out $key{user} >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL req -new -key $key{user} -out $csr{user} -config $conf_file >$DEVNULL 2>&1}) and die $!;
system(qq{$OPENSSL x509 -in $csr{user} -out $crt{user} -req -CA $crt{intermed_2} -CAkey $key{intermed_2} -set_serial 1 >$DEVNULL 2>&1}) and die;
};
};
sub key {
my $who = shift;
local $/;
open my $fh, '<', $key{$who} or die $!;
return scalar <$fh>;
};
sub crt {
my $who = shift;
local $/;
open my $fh, '<', $crt{$who} or die $!;
return scalar <$fh>;
}
my $plain = q{From: alice@example.org
To: bob@example.org
Subject: Crypt::SMIME test
This is a test mail. Please ignore...
};
$plain =~ s/\r?\n|\r/\r\n/g;
my $verified = q{Subject: Crypt::SMIME test
This is a test mail. Please ignore...
};
$verified =~ s/\r?\n|\r/\r\n/g;
# -----------------------------------------------------------------------------
plan tests => 15;
use_ok('Crypt::SMIME');
my $signed = do {
my $SMIME;
lives_ok { $SMIME = Crypt::SMIME->new } 'new';
lives_ok { $SMIME->setPrivateKey(key('user'), crt('user')) } 'setPrivateKey(USER)';
lives_ok { $SMIME->setPublicKey(crt('intermed_1')."\n".crt('intermed_2')) } 'setPublicKey(INTERMED-1 & INTERMED-2)';
my $tmp;
lives_ok { $tmp = $SMIME->sign($plain) } 'sign($plain)';
$tmp;
};
sub smime_check_ok {
my ( $case, %opts ) = @_;
my $SMIME = Crypt::SMIME->new;
lives_ok { $SMIME->setPublicKey(crt('root')) } 'setPublicKey(ROOT)';
my $checked;
if( defined $opts{'add_time'} ) {
my $time = time + $opts{'add_time'};
lives_ok { $SMIME->setAtTime($time) } "set verify timestamp to ".localtime($time);
}
if ($opts{'expect_failure'}) {
dies_ok { $checked = $SMIME->check($signed) }, 'check must fail with exception';
} else {
lives_ok { $checked = $SMIME->check($signed) } 'check';
is($checked, $verified, '$verified eq check(sign($plain))');
}
}
smime_check_ok('with default parameters');
smime_check_ok('with timestamp of tomorrow',
'add_time' => 60*60*24 );
smime_check_ok('with timestamp of in one year',
'add_time' => 60*60*24*365,
'expect_failure' => 1);
|
