909f1a2e51
Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7767)
54 lines
2 KiB
Perl
54 lines
2 KiB
Perl
#! /usr/bin/env perl
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# Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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use strict;
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use warnings;
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use File::Spec;
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use OpenSSL::Test qw/:DEFAULT srctop_file/;
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use OpenSSL::Test::Utils;
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setup("test_genrsa");
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plan tests => 5;
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# We want to know that an absurdly small number of bits isn't support
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is(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', '8'])), 0, "genrsa -3 8");
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# Depending on the shared library, we might have different lower limits.
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# Let's find it! This is a simple binary search
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# ------------------------------------------------------------
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# NOTE: $good may need an update in the future
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# ------------------------------------------------------------
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note "Looking for lowest amount of bits";
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my $bad = 3; # Log2 of number of bits (2 << 3 == 8)
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my $good = 11; # Log2 of number of bits (2 << 11 == 2048)
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while ($good > $bad + 1) {
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my $checked = int(($good + $bad + 1) / 2);
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if (run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem',
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2 ** $checked ], stderr => undef))) {
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note 2 ** $checked, " bits is good";
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$good = $checked;
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} else {
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note 2 ** $checked, " bits is bad";
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$bad = $checked;
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}
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}
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$good++ if $good == $bad;
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$good = 2 ** $good;
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note "Found lowest allowed amount of bits to be $good";
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ok(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', $good ])),
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"genrsa -3 $good");
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ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
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"rsa -check");
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ok(run(app([ 'openssl', 'genrsa', '-f4', '-out', 'genrsatest.pem', $good ])),
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"genrsa -f4 $good");
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ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
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"rsa -check");
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