openssl/test/recipes/15-test_genrsa.t
Pauli 5c99d57ea3 test: add test for key generation strength > RNG strength
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15472)
2021-05-27 13:01:50 +10:00

133 lines
4.8 KiB
Perl

#! /usr/bin/env perl
# Copyright 2017-2021 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 File::Spec;
use OpenSSL::Test qw/:DEFAULT srctop_file srctop_dir bldtop_dir bldtop_file/;
use OpenSSL::Test::Utils;
BEGIN {
setup("test_genrsa");
}
use lib srctop_dir('Configurations');
use lib bldtop_dir('.');
my $no_fips = disabled('fips') || ($ENV{NO_FIPS} // 0);
plan tests =>
($no_fips ? 0 : 2) # Extra FIPS related test
+ 14;
# We want to know that an absurdly small number of bits isn't support
is(run(app([ 'openssl', 'genpkey', '-out', 'genrsatest.pem',
'-algorithm', 'RSA', '-pkeyopt', 'rsa_keygen_bits:8',
'-pkeyopt', 'rsa_keygen_pubexp:3'])),
0, "genpkey 8");
is(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', '8'])),
0, "genrsa -3 8");
# We want to know that an absurdly large number of bits fails the RNG check
is(run(app([ 'openssl', 'genpkey', '-out', 'genrsatest.pem',
'-algorithm', 'RSA', '-pkeyopt', 'rsa_keygen_bits:1000000000',
'-pkeyopt', 'rsa_keygen_pubexp:3'])),
0, "genpkey 1000000000");
# 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;
$fin = run(app([ 'openssl', 'genpkey', '-out', 'genrsatest.pem',
'-algorithm', 'RSA', '-pkeyopt', 'rsa_keygen_pubexp:65537',
'-pkeyopt', "rsa_keygen_bits:$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 $good";
ok(run(app([ 'openssl', 'genpkey', '-algorithm', 'RSA',
'-pkeyopt', 'rsa_keygen_pubexp:65537',
'-pkeyopt', "rsa_keygen_bits:$good",
'-out', 'genrsatest.pem' ])),
"genpkey $good");
ok(run(app([ 'openssl', 'pkey', '-check', '-in', 'genrsatest.pem', '-noout' ])),
"pkey -check");
ok(run(app([ 'openssl', 'genpkey', '-algorithm', 'RSA',
'-pkeyopt', 'rsa_keygen_bits:2048',
'-out', 'genrsatest2048.pem' ])),
"genpkey 2048 bits");
ok(run(app([ 'openssl', 'pkey', '-check', '-in', 'genrsatest2048.pem', '-noout' ])),
"pkey -check");
ok(!run(app([ 'openssl', 'genpkey', '-algorithm', 'RSA',
'-pkeyopt', 'hexe:02',
'-out', 'genrsatest.pem' ])),
"genpkey with a bad public exponent should fail");
ok(!run(app([ 'openssl', 'genpkey', '-algorithm', 'RSA',
'-pkeyopt', 'e:65538',
'-out', 'genrsatest.pem' ])),
"genpkey with a even public exponent should fail");
ok(!run(app([ 'openssl', 'genpkey', '-propquery', 'unknown',
'-algorithm', 'RSA' ])),
"genpkey requesting unknown=yes property should fail");
SKIP: {
skip "Skipping rsa command line test", 2 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 $good");
ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
"rsa -check");
unless ($no_fips) {
my $provconf = srctop_file("test", "fips-and-base.cnf");
my $provpath = bldtop_dir("providers");
my @prov = ( "-provider-path", $provpath,
"-config", $provconf);
$ENV{OPENSSL_TEST_LIBCTX} = "1";
ok(run(app(['openssl', 'genpkey',
@prov,
'-algorithm', 'RSA',
'-pkeyopt', 'bits:2080',
'-out', 'genrsatest2080.pem'])),
"Generating RSA key with > 2048 bits and < 3072 bits");
ok(run(app(['openssl', 'genpkey',
@prov,
'-algorithm', 'RSA',
'-pkeyopt', 'bits:3072',
'-out', 'genrsatest3072.pem'])),
"Generating RSA key with 3072 bits");
}