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#! /usr/bin/env perl
# Copyright 2017-2018 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 File::Spec;
use OpenSSL::Test qw/:DEFAULT srctop_file/;
use OpenSSL::Test::Utils;
setup("test_genrsa");
plan tests => 9;
# We want to know that an absurdly small number of bits isn't support
if (disabled("deprecated-3.0")) {
is(run(app([ 'openssl', 'genpkey', '-out', 'genrsatest.pem',
'-algorithm', 'RSA', '-pkeyopt', 'rsa_keygen_bits:8',
'-pkeyopt', 'rsa_keygen_pubexp:3'])),
0, "genrsa -3 8");
} else {
is(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', '8'])),
0, "genrsa -3 8");
}
# Depending on the shared library, we might have different lower limits.
# Let's find it! This is a simple binary search
# ------------------------------------------------------------
# NOTE: $good may need an update in the future
# ------------------------------------------------------------
note "Looking for lowest amount of bits";
my $bad = 3; # Log2 of number of bits (2 << 3 == 8)
my $good = 11; # Log2 of number of bits (2 << 11 == 2048)
my $fin;
while ($good > $bad + 1) {
my $checked = int(($good + $bad + 1) / 2);
my $bits = 2 ** $checked;
if (disabled("deprecated-3.0")) {
$fin = run(app([ 'openssl', 'genpkey', '-out', 'genrsatest.pem',
'-algorithm', 'RSA', '-pkeyopt', 'rsa_keygen_pubexp:3',
'-pkeyopt', "rsa_keygen_bits:$bits",
], stderr => undef));
} else {
$fin = run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem',
$bits
], stderr => undef));
}
if ($fin) {
note 2 ** $checked, " bits is good";
$good = $checked;
} else {
note 2 ** $checked, " bits is bad";
$bad = $checked;
}
}
$good++ if $good == $bad;
$good = 2 ** $good;
note "Found lowest allowed amount of bits to be $good";
ok(run(app([ 'openssl', 'genpkey', '-algorithm', 'RSA',
'-pkeyopt', 'rsa_keygen_pubexp:3',
'-pkeyopt', "rsa_keygen_bits:$good",
'-out', 'genrsatest.pem' ])),
"genpkey -3 $good");
ok(run(app([ 'openssl', 'pkey', '-check', '-in', 'genrsatest.pem', '-noout' ])),
"pkey -check");
ok(run(app([ 'openssl', 'genpkey', '-algorithm', 'RSA',
'-pkeyopt', 'rsa_keygen_pubexp:65537',
'-pkeyopt', "rsa_keygen_bits:$good",
'-out', 'genrsatest.pem' ])),
"genpkey -f4 $good");
ok(run(app([ 'openssl', 'pkey', '-check', '-in', 'genrsatest.pem', '-noout' ])),
"pkey -check");
SKIP: {
skip "Skipping rsa command line test", 4 if disabled("deprecated-3.0");
ok(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', $good ])),
"genrsa -3 $good");
ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
"rsa -check");
ok(run(app([ 'openssl', 'genrsa', '-f4', '-out', 'genrsatest.pem', $good ])),
"genrsa -f4 $good");
ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
"rsa -check");
}
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