2 # Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the Apache License 2.0 (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
14 use OpenSSL::Test qw/:DEFAULT srctop_file/;
15 use OpenSSL::Test::Utils;
21 # We want to know that an absurdly small number of bits isn't support
22 is(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', '8'])), 0, "genrsa -3 8");
24 # Depending on the shared library, we might have different lower limits.
25 # Let's find it! This is a simple binary search
26 # ------------------------------------------------------------
27 # NOTE: $good may need an update in the future
28 # ------------------------------------------------------------
29 note "Looking for lowest amount of bits";
30 my $bad = 3; # Log2 of number of bits (2 << 3 == 8)
31 my $good = 11; # Log2 of number of bits (2 << 11 == 2048)
32 while ($good > $bad + 1) {
33 my $checked = int(($good + $bad + 1) / 2);
34 if (run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem',
35 2 ** $checked ], stderr => undef))) {
36 note 2 ** $checked, " bits is good";
39 note 2 ** $checked, " bits is bad";
43 $good++ if $good == $bad;
45 note "Found lowest allowed amount of bits to be $good";
47 ok(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', $good ])),
49 ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
51 ok(run(app([ 'openssl', 'genrsa', '-f4', '-out', 'genrsatest.pem', $good ])),
53 ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),