test/recipes/15-test_genrsa.t

   1 #! /usr/bin/env perl
   2 # Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   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
   8
   9
  10 use strict;
  11 use warnings;
  12
  13 use File::Spec;
  14 use OpenSSL::Test qw/:DEFAULT srctop_file/;
  15 use OpenSSL::Test::Utils;
  16
  17 setup("test_genrsa");
  18
  19 plan tests => 5;
  20
  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");
  23
  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";
  37         $good = $checked;
  38     } else {
  39         note 2 ** $checked, " bits is bad";
  40         $bad = $checked;
  41     }
  42 }
  43 $good++ if $good == $bad;
  44 $good = 2 ** $good;
  45 note "Found lowest allowed amount of bits to be $good";
  46
  47 ok(run(app([ 'openssl', 'genrsa', '-3', '-out', 'genrsatest.pem', $good ])),
  48    "genrsa -3 $good");
  49 ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
  50    "rsa -check");
  51 ok(run(app([ 'openssl', 'genrsa', '-f4', '-out', 'genrsatest.pem', $good ])),
  52    "genrsa -f4 $good");
  53 ok(run(app([ 'openssl', 'rsa', '-check', '-in', 'genrsatest.pem', '-noout' ])),
  54    "rsa -check");