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#!/usr/bin/perl -w
use strict;
use lib '..','../blib/lib','.','./blib/lib';
sub test ($$$);
my $plaintext = <<END;
Mary had a little lamb,
Its fleece was black as coal,
And everywere that Mary went,
That lamb would dig a hole.
END
;
print "1..63\n";
eval "use Crypt::CBC";
test(1,!$@,"Couldn't load module");
my ($crypt,$ciphertext1,$ciphertext2);
$crypt = eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-key => 'test key') };
test(2,defined $crypt,"$@Can't continue!");
test(3,$crypt->header_mode eq 'salt',"Default header mode is not 'salt'");
exit 0 unless $crypt;
# tests for the salt header
$crypt = eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-key => 'test key',
-header => 'salt') };
test(4,defined $crypt,"$@Can't continue!");
exit 0 unless $crypt;
test(5,!defined $crypt->iv, "IV is defined after new() but it shouldn't be");
test(6,!defined $crypt->salt,"salt is defined after new() but it shouldn't be");
test(7,!defined $crypt->key, "key is defined after new() but it shouldn't be");
$ciphertext1 = $crypt->encrypt($plaintext);
test(8,$ciphertext1 =~ /^Salted__/s,"salted header not present");
test(9, defined $crypt->iv, "IV not defined after encrypt");
test(10,defined $crypt->salt, "salt not defined after encrypt");
test(11,defined $crypt->key, "key not defined after encrypt");
my ($old_iv,$old_salt,$old_key) = ($crypt->iv,$crypt->salt,$crypt->key);
$ciphertext2 = $crypt->encrypt($plaintext);
test(12,$ciphertext2 =~ /^Salted__/s,"salted header not present");
test(13,$old_iv ne $crypt->iv, "IV didn't change after an encrypt");
test(14,$old_salt ne $crypt->salt, "salt didn't change after an encrypt");
test(15,$old_key ne $crypt->key, "key didn't change after an encrypt");
test(16,$plaintext eq $crypt->decrypt($ciphertext1),"decrypted text doesn't match original");
test(17,$old_iv eq $crypt->iv, "original IV wasn't restored after decryption");
test(18,$old_salt eq $crypt->salt, "original salt wasn't restored after decryption");
test(19,$old_key eq $crypt->key, "original key wasn't restored after decryption");
test(20,$crypt->passphrase eq 'test key',"get passphrase()");
$crypt->passphrase('new key');
test(21,$crypt->passphrase eq 'new key',"set passphrase()");
test(22,length($crypt->random_bytes(20)) == 20,"get_random_bytes()");
# tests for the randomiv header
$crypt = eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-key => 'test key',
-header => 'randomiv') };
test(23,defined $crypt,"$@\nCan't continue!");
exit 0 unless $crypt;
test(24,$crypt->header_mode eq 'randomiv',"wrong header mode");
test(25,!defined $crypt->iv, "IV is defined after new() but it shouldn't be");
test(26,!defined $crypt->salt,"salt is defined after new() but it shouldn't be");
test(27,!defined $crypt->key, "key is defined after new() but it shouldn't be");
$ciphertext1 = $crypt->encrypt($plaintext);
test(28,$ciphertext1 =~ /^RandomIV/s,"RandomIV header not present");
test(29, defined $crypt->iv, "IV not defined after encrypt");
test(30,!defined $crypt->salt, "salt defined after encrypt");
test(31,defined $crypt->key, "key not defined after encrypt");
($old_iv,$old_salt,$old_key) = ($crypt->iv,$crypt->salt,$crypt->key);
$ciphertext2 = $crypt->encrypt($plaintext);
test(32,$ciphertext2 =~ /^RandomIV/s,"RandomIV header not present");
test(33,$old_iv ne $crypt->iv, "IV didn't change after an encrypt");
test(34,$old_key eq $crypt->key, "key changed after an encrypt");
test(35,$plaintext eq $crypt->decrypt($ciphertext1),"decrypted text doesn't match original");
test(36,$old_iv eq $crypt->iv, "original IV wasn't restored after decryption");
# tests for headerless operation
$crypt = eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-key => 'test key',
-iv => '01234567',
-header => 'none') };
test(37,defined $crypt,"$@Can't continue!");
exit 0 unless $crypt;
test(38,$crypt->header_mode eq 'none',"wrong header mode");
test(39,$crypt->iv eq '01234567', "IV doesn't match settings");
test(40,!defined $crypt->key, "key is defined after new() but it shouldn't be");
$ciphertext1 = $crypt->encrypt($plaintext);
test(41,length($ciphertext1) - length($plaintext) <= 8, "ciphertext grew too much");
test(42,$crypt->decrypt($ciphertext1) eq $plaintext,"decrypted ciphertext doesn't match plaintext");
my $crypt2 = Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-key => 'test key',
-iv => '01234567',
-header => 'none');
test(43,$crypt2->decrypt($ciphertext1) eq $plaintext,"decrypted ciphertext doesn't match plaintext");
$crypt2 = Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-key => 'test key',
-iv => '76543210',
-header => 'none');
test(44,$crypt2->decrypt($ciphertext1) ne $plaintext,"decrypted ciphertext matches plaintext but shouldn't");
test(45,$crypt->iv eq '01234567',"iv changed and it shouldn't have");
test(46,$crypt2->iv eq '76543210',"iv changed and it shouldn't have");
# check various bad combinations of parameters that should cause a fatal error
my $good_key = Crypt::CBC->random_bytes(Crypt::Crypt8->keysize);
my $bad_key = 'foo';
$crypt = eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-header => 'randomiv',
-key => $good_key,
-iv => '01234567',
-literal_key => 1)};
test(47,defined $crypt,"$@Can't continue!");
exit 0 unless $crypt;
test(48,$crypt->key eq $good_key,"couldn't set literal key");
test(49,
!eval{
Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-header => 'randomiv',
-key => $bad_key,
-iv => '01234567',
-literal_key => 1)
},
"module accepted a literal key of invalid size");
test(50,
!eval{
Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'randomiv',
-key => $good_key,
-iv => '01234567',
-literal_key => 1)
},
"module accepted a literal key of invalid size");
test(51,
!eval{
Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-header => 'randomiv',
-key => $good_key,
-iv => '01234567891',
-literal_key => 1)
},
"module accepted an IV of invalid size");
test(52,
!eval{
Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'randomiv',
-key => 'test key')
},
"module allowed randomiv headers with a 16-bit blocksize cipher");
$crypt = Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'randomiv',
-key => 'test key',
-insecure_legacy_decrypt => 1);
test(53,defined $crypt,"module didn't honor the -insecure_legacy_decrypt flag:$@Can't continue!");
exit 0 unless $crypt;
test(54,$crypt->decrypt("RandomIV01234567".'a'x256),"module didn't allow legacy decryption");
test(55,!defined eval{$crypt->encrypt('foobar')},"module allowed legacy encryption and shouldn't have");
test(56,
!defined eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'salt',
-key => 'test key',
-salt => 'bad bad salt!');
},
"module allowed setting of a bad salt");
test(57,
defined eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'salt',
-key => 'test key',
-salt => 'goodsalt');
},
"module did not allow setting of a good salt");
test(58,
Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'salt',
-key => 'test key',
-salt => 'goodsalt')->salt eq 'goodsalt',
"module did not allow setting and retrieval of a good salt");
test(59,
!defined eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'badheadermethod',
-key => 'test key')},
"module allowed setting of an invalid header method, and shouldn't have");
test(60,
!defined eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'none',
-key => 'a'x16)
},
"module allowed initialization of header_mode 'none' without an iv");
test(61,
!defined eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt16',
-header => 'none',
-iv => 'a'x16)
},
"module allowed initialization of header_mode 'none' without a key");
$crypt = eval {Crypt::CBC->new(-cipher => 'Crypt::Crypt8',
-literal_key => 1,
-header => 'none',
-key => 'a'x56,
-iv => 'b'x8,
) };
test(62,defined $crypt,"unable to create a Crypt::CBC object with the -literal_key option: $@");
test(63,$plaintext eq $crypt->decrypt($crypt->encrypt($plaintext)),'cannot decrypt encrypted data using -literal_key');
exit 0;
sub test ($$$){
local($^W) = 0;
my($num, $true,$msg) = @_;
print($true ? "ok $num\n" : "not ok $num $msg\n");
}
package Crypt::Crypt16;
sub new { return bless {},shift }
sub blocksize { return 16 }
sub keysize { return 56 }
sub encrypt { return $_[1] }
sub decrypt { return $_[1] }
package Crypt::Crypt8;
sub new { return bless {},shift }
sub blocksize { return 8 }
sub keysize { return 56 }
sub encrypt { return $_[1] }
sub decrypt { return $_[1] }
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