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Third Party Openssl
提交 8d1ebff4 编写于 作者: R Rich Salz
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Make bntest be (mostly) file-based. 

Test suite used from boring, written by David Benjamin.
Test driver converted from C++ to C.
Added a Perl program to check the testsuite file.
Extensive review feedback incorporated (thanks folks).
Reviewed-by: NEmilia Käsper <emilia@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>
上级 b3618f44
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Showing with 12360 addition and 1754 deletion
test/bntest.c
浏览文件 @ 8d1ebff4
此差异已折叠。
test/bntests.pl 0 → 100755
浏览文件 @ 8d1ebff4
#! /usr/bin/env perl
# Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (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
# Run the tests specified in bntests.txt, as a check against OpenSSL.
use strict;
use warnings;
use Math::BigInt;
my $EXPECTED_FAILURES = 0;
my $failures = 0;
sub bn
{
my $x = shift;
my ($sign, $hex) = ($x =~ /^([+\-]?)(.*)$/);
$hex = '0x' . $hex if $hex !~ /^0x/;
return Math::BigInt->from_hex($sign.$hex);
}
sub evaluate
{
my $lineno = shift;
my %s = @_;
if ( defined $s{'Sum'} ) {
# Sum = A + B
my $sum = bn($s{'Sum'});
my $a = bn($s{'A'});
my $b = bn($s{'B'});
return if $sum == $a + $b;
} elsif ( defined $s{'LShift1'} ) {
# LShift1 = A * 2
my $lshift1 = bn($s{'LShift1'});
my $a = bn($s{'A'});
return if $lshift1 == $a->bmul(2);
} elsif ( defined $s{'LShift'} ) {
# LShift = A * 2**N
my $lshift = bn($s{'LShift'});
my $a = bn($s{'A'});
my $n = bn($s{'N'});
return if $lshift == $a->blsft($n);
} elsif ( defined $s{'RShift'} ) {
# RShift = A / 2**N
my $rshift = bn($s{'RShift'});
my $a = bn($s{'A'});
my $n = bn($s{'N'});
return if $rshift == $a->brsft($n);
} elsif ( defined $s{'Square'} ) {
# Square = A * A
my $square = bn($s{'Square'});
my $a = bn($s{'A'});
return if $square == $a->bmul($a);
} elsif ( defined $s{'Product'} ) {
# Product = A * B
my $product = bn($s{'Product'});
my $a = bn($s{'A'});
my $b = bn($s{'B'});
return if $product == $a->bmul($b);
} elsif ( defined $s{'Quotient'} ) {
# Quotient = A / B
# Remainder = A - B * Quotient
my $quotient = bn($s{'Quotient'});
my $remainder = bn($s{'Remainder'});
my $a = bn($s{'A'});
my $b = bn($s{'B'});
# First the remainder test.
$b->bmul($quotient);
my $rempassed = $remainder == $a->bsub($b) ? 1 : 0;
# Math::BigInt->bdiv() is documented to do floored division,
# i.e. 1 / -4 = -1, while OpenSSL BN_div does truncated
# division, i.e. 1 / -4 = 0. We need to make the operation
# work like OpenSSL's BN_div to be able to verify.
$a = bn($s{'A'});
$b = bn($s{'B'});
my $neg = $a->is_neg() ? !$b->is_neg() : $b->is_neg();
$a->babs();
$b->babs();
$a->bdiv($b);
$a->bneg() if $neg;
return if $rempassed && $quotient == $a;
} elsif ( defined $s{'ModMul'} ) {
# ModMul = (A * B) mod M
my $modmul = bn($s{'ModMul'});
my $a = bn($s{'A'});
my $b = bn($s{'B'});
my $m = bn($s{'M'});
$a->bmul($b);
return if $modmul == $a->bmod($m);
} elsif ( defined $s{'ModExp'} ) {
# ModExp = (A ** E) mod M
my $modexp = bn($s{'ModExp'});
my $a = bn($s{'A'});
my $e = bn($s{'E'});
my $m = bn($s{'M'});
return if $modexp == $a->bmodpow($e, $m);
} elsif ( defined $s{'Exp'} ) {
my $exp = bn($s{'Exp'});
my $a = bn($s{'A'});
my $e = bn($s{'E'});
return if $exp == $a ** $e;
} elsif ( defined $s{'ModSqrt'} ) {
# (ModSqrt * ModSqrt) mod P = A mod P
my $modsqrt = bn($s{'ModSqrt'});
my $a = bn($s{'A'});
my $p = bn($s{'P'});
$modsqrt->bmul($modsqrt);
$modsqrt->bmod($p);
$a->bmod($p);
return if $modsqrt == $a;
} else {
print "# Unknown test: ";
}
$failures++;
print "# #$failures Test (before line $lineno) failed\n";
foreach ( keys %s ) {
print "$_ = $s{$_}\n";
}
print "\n";
}
my $infile = shift || 'bntests.txt';
die "No such file, $infile" unless -f $infile;
open my $IN, $infile || die "Can't read $infile, $!\n";
my %stanza = ();
my $l = 0;
while ( <$IN> ) {
$l++;
s|\R$||;
next if /^#/;
if ( /^$/ ) {
if ( keys %stanza ) {
evaluate($l, %stanza);
%stanza = ();
}
next;
}
# Parse 'key = value'
if ( ! /\s*([^\s]*)\s*=\s*(.*)\s*/ ) {
print "Skipping $_\n";
next;
}
$stanza{$1} = $2;
};
evaluate($l, %stanza) if keys %stanza;
die "Got $failures, expected $EXPECTED_FAILURES"
if $infile eq 'bntests.txt' and $failures != $EXPECTED_FAILURES;
close($IN)
test/bntests.txt 0 → 100644
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此差异已折叠。
test/build.info
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......@@ -35,7 +35,7 @@ IF[{- !$disabled{tests} -}]
INCLUDE[sanitytest]=../include
DEPEND[sanitytest]=../libcrypto
SOURCE[bntest]=bntest.c
SOURCE[bntest]=bntest.c testutil.c test_main_custom.c
INCLUDE[bntest]=.. ../crypto/include ../include
DEPEND[bntest]=../libcrypto
......
test/recipes/10-test_bn.t
浏览文件 @ 8d1ebff4
......@@ -16,69 +16,7 @@ use OpenSSL::Test qw/:DEFAULT srctop_file/;
setup("test_bn");
plan tests => 3;
plan tests => 1;
require_ok(srctop_file("test","recipes","bc.pl"));
my $testresults = "tmp.bntest";
my $init = ok(run(test(["bntest"], stdout => $testresults)), 'initialize');
SKIP: {
skip "Initializing failed, skipping", 1 if !$init;
subtest 'Checking the bn results' => sub {
my @lines = ();
if (open DATA, $testresults) {
@lines = <DATA>;
close DATA;
}
map { s/\R//; } @lines; # chomp(@lines);
plan tests => scalar grep(/^print /, @lines);
my $l = "";
while (scalar @lines) {
$l = shift @lines;
last if $l =~ /^print /;
}
while (1) {
$l =~ s/^print "//;
$l =~ s/\\n"//;
my $t = $l;
my @operations = ();
$l = undef;
while (scalar @lines) {
$l = shift @lines;
last if $l =~ /^print /;
push @operations, $l;
$l = undef;
}
ok(check_operations(@operations), "verify $t");
last unless $l;
}
};
}
unlink $testresults;
sub check_operations {
my $failcount = 0;
foreach my $line (@_) {
my $result = calc(split /\s+/, $line);
if ($result ne "0" && $result ne "0x0") {
$failcount++;
print STDERR "Failed! $line => $result\n";
}
}
return $failcount == 0;
}
ok(run(test(["bntest", srctop_file("test", "bntests.txt")])),
"running bntest bntests.txt");
test/recipes/bc.pl 已删除 100644 → 0
浏览文件 @ b3618f44
#! /usr/bin/env perl
# Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
use strict;
use warnings;
use Math::BigInt;
sub calc {
@_ = __adder(@_);
if (scalar @_ != 1) { return "NaN"; }
return shift;
}
sub __canonhex {
my ($sign, $hex) = (shift =~ /^([+\-]?)(.*)$/);
$hex = "0x".$hex if $hex !~ /^0x/;
return $sign.$hex;
}
sub __adder {
@_ = __multiplier(@_);
while (scalar @_ > 1 && $_[1] =~ /^[\+\-]$/) {
my $operand1 = Math::BigInt->from_hex(__canonhex(shift));
my $operator = shift;
@_ = __multiplier(@_);
my $operand2 = Math::BigInt->from_hex(__canonhex(shift));
if ($operator eq "+") {
$operand1->badd($operand2);
} elsif ($operator eq "-") {
$operand1->bsub($operand2);
} else {
die "SOMETHING WENT AWFULLY WRONG";
}
unshift @_, $operand1->as_hex();
}
return @_;
}
sub __multiplier {
@_ = __power(@_);
while (scalar @_ > 1 && $_[1] =~ /^[\*\/%]$/) {
my $operand1 = Math::BigInt->from_hex(__canonhex(shift));
my $operator = shift;
@_ = __power(@_);
my $operand2 = Math::BigInt->from_hex(__canonhex(shift));
if ($operator eq "*") {
$operand1->bmul($operand2);
} elsif ($operator eq "/") {
# Math::BigInt->bdiv() is documented to do floored division,
# i.e. 1 / -4 = -1, while bc and OpenSSL BN_div do truncated
# division, i.e. 1 / -4 = 0. We need to make the operation
# work like OpenSSL's BN_div to be able to verify.
my $neg = ($operand1->is_neg()
? !$operand2->is_neg() : $operand2->is_neg());
$operand1->babs();
$operand2->babs();
$operand1->bdiv($operand2);
if ($neg) { $operand1->bneg(); }
} elsif ($operator eq "%") {
# Here's a bit of a quirk...
# With OpenSSL's BN, as well as bc, the result of -10 % 3 is -1
# while Math::BigInt, the result is 2.
# The latter is mathematically more correct, but...
my $o1isneg = $operand1->is_neg();
$operand1->babs();
# Math::BigInt does something different with a negative modulus,
# while OpenSSL's BN and bc treat it like a positive number...
$operand2->babs();
$operand1->bmod($operand2);
if ($o1isneg) { $operand1->bneg(); }
} else {
die "SOMETHING WENT AWFULLY WRONG";
}
unshift @_, $operand1->as_hex();
}
return @_;
}
sub __power {
@_ = __paren(@_);
while (scalar @_ > 1 && $_[1] eq "^") {
my $operand1 = Math::BigInt->from_hex(__canonhex(shift));
shift;
@_ = __paren(@_);
my $operand2 = Math::BigInt->from_hex(__canonhex(shift));
$operand1->bpow($operand2);
unshift @_, $operand1->as_hex();
}
return @_;
}
# returns array ( $result, @remaining )
sub __paren {
if (scalar @_ > 0 && $_[0] eq "(") {
shift;
my @result = __adder(@_);
if (scalar @_ == 0 || $_[0] ne ")") {
return ("NaN");
}
shift;
return @result;
}
return @_;
}
1;
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