arno
/
hashcat
mirror of https://github.com/hashcat/hashcat.git
1
0
Fork 0
Code Issues Releases Wiki Activity

test: fixed verify for -m 13100, -m 13200, -m 13300 and -m 13400

Browse Source
pull/401/head
philsmd 8 years ago
parent edb5028a4d
commit 567923966b
No known key found for this signature in database
GPG Key ID: 4F25D016D9D6A8AF
1 changed files with 146 additions and 35 deletions
Show Stats Download Patch File Download Diff File

181
tools/test.pl
Unescape View File

@ -2211,7 +2211,7 @@ sub verify
next unless (exists ($db->{$hash_line}) and (! defined ($db->{$hash_line})));
}
elsif ($mode == 13100 )
elsif ($mode == 13100)
{
($hash_in, $word) = split ":", $line;
@ -2238,7 +2238,10 @@ sub verify
next unless (length ($checksum) == 32);
next unless (length ($edata2) >= 64);
$salt = $user . '$' . $realm . '$' . $spn . '$' . substr ($edata2, 0, 16);
$salt = $user . '$' . $realm . '$' . $spn . '$';
$param = $checksum;
$param2 = $edata2;
next unless (exists ($db->{$hash_in}) and (! defined ($db->{$hash_in})));
}
@ -2253,8 +2256,6 @@ sub verify
next unless scalar @data == 5;
shift @data;
my $signature = shift @data;
my $version = shift @data;
my $iteration = shift @data;
@ -2265,7 +2266,8 @@ sub verify
next unless (length ($mysalt) == 32);
next unless (length ($digest) == 48);
$salt = $iteration . '*' . $mysalt;
$salt = $iteration . '*' . $mysalt;
$param = $digest;
next unless (exists ($db->{$hash_in}) and (! defined ($db->{$hash_in})));
}
@ -2365,7 +2367,8 @@ sub verify
next unless (length ($keyfile) == $keyfile_len);
}
$salt = substr ($hash_in, length ("*keepass*") + 1, length ($hash_in));
$salt = substr ($hash_in, length ("*keepass*") + 1);
$param = 1; # distinguish between encrypting vs decrypting
next unless (exists ($db->{$hash_in}) and (! defined ($db->{$hash_in})));
}
@ -2674,7 +2677,7 @@ sub verify
}
elsif ($mode == 13100)
{
$hash_out = gen_hash ($mode, $word, $salt);
$hash_out = gen_hash ($mode, $word, $salt, $iter, $param, $param2);
$len = length $hash_out;
@ -2682,7 +2685,7 @@ sub verify
}
elsif ($mode == 13200)
{
$hash_out = gen_hash ($mode, $word, $salt);
$hash_out = gen_hash ($mode, $word, $salt, $iter, $param);
$len = length $hash_out;
@ -2690,7 +2693,7 @@ sub verify
}
elsif ($mode == 13400)
{
$hash_out = gen_hash ($mode, $word, $salt);
$hash_out = gen_hash ($mode, $word, $salt, $iter, $param);
$len = length $hash_out;
@ -6956,28 +6959,63 @@ END_CODE
my $spn = $salt_arr[2];
my $nonce = $salt_arr[3];
my $k = md4 (encode ("UTF-16LE", $word_buf));
my $k1 = hmac_md5 ("\x02\x00\x00\x00", $k);
my $cleartext_ticket = '6381b03081ada00703050050a00000a11b3019a003020117a1'.
'12041058e0d77776e8b8e03991f2966939222aa2171b154d594b5242544553542e434f4e5'.
'44f534f2e434f4da3133011a003020102a10a30081b067472616e6365a40b3009a0030201'.
'01a1020400a511180f32303136303231353134343735305aa611180f32303136303231353'.
'134343735305aa711180f32303136303231363030343735305aa811180f32303136303232'.
'323134343735305a';
'12041058e0d77776e8b8e03991f2966939222aa2171b154d594b5242544553542e434f4e5'.
'44f534f2e434f4da3133011a003020102a10a30081b067472616e6365a40b3009a0030201'.
'01a1020400a511180f32303136303231353134343735305aa611180f32303136303231353'.
'134343735305aa711180f32303136303231363030343735305aa811180f32303136303232'.
'323134343735305a';
$cleartext_ticket = $nonce . $cleartext_ticket;
my $checksum = "";
my $k = md4 (encode ("UTF-16LE", $word_buf));
if (defined $additional_param)
{
$checksum = pack ("H*", $additional_param);
}
else
{
my $nonce = $salt_arr[3];
my $k1 = hmac_md5 ("\x02\x00\x00\x00", $k);
$cleartext_ticket = $nonce . $cleartext_ticket;
my $checksum = hmac_md5 (pack ("H*", $cleartext_ticket), $k1);
$checksum = hmac_md5 (pack ("H*", $cleartext_ticket), $k1);
}
my $k3 = hmac_md5 ($checksum, $k1);
my $edata2 = "";
if (defined $additional_param2)
{
$edata2 = $additional_param2;
my $cipher_decrypt = Crypt::RC4->new ($k3);
my $ticket_decrypt = unpack ("H*", $cipher_decrypt->RC4 (pack ("H*", $edata2)));
my $check_correct = ((substr ($ticket_decrypt, 16, 4) eq "6381" && substr ($ticket_decrypt, 22, 2) eq "30") ||
(substr ($ticket_decrypt, 16, 4) eq "6382")) &&
((substr ($ticket_decrypt, 32, 6) eq "030500") ||
(substr ($ticket_decrypt, 32, 8) eq "050307A0"));
if ($check_correct == 1)
{
$cleartext_ticket = $ticket_decrypt;
}
else # validation failed
{
# fake/wrong ticket (otherwise if we just decrypt/encrypt we end up with false positives all the time)
$cleartext_ticket = "0" x (length ($cleartext_ticket) + 16);
}
}
my $cipher = Crypt::RC4->new ($k3);
my $edata2 = $cipher->RC4 (pack ("H*", $cleartext_ticket));
$edata2 = $cipher->RC4 (pack ("H*", $cleartext_ticket));
$tmp_hash = sprintf ('$krb5tgs$23$*%s$%s$%s*$%s$%s', $user, $realm, $spn, unpack ("H*", $checksum), unpack ("H*", $edata2));
}
@ -6985,27 +7023,73 @@ END_CODE
{
my @salt_arr = split ('\*', $salt_buf);
my $iteration = $salt_arr[0];
my $iteration = $salt_arr[0];
my $mysalt = $salt_arr[1];
$mysalt = pack ("H*", $mysalt);
my $DEK = randbytes (16);
my $iv = "a6a6a6a6a6a6a6a6";
my $KEK = sha1($word_buf);
my $KEK = sha1 ($word_buf);
$KEK = substr ($KEK ^ $mysalt, 0, 16);
my $aes = Crypt::Mode::ECB->new ('AES');
my @R = ('', substr(pack ("H*",$DEK),0,8), substr(pack ("H*",$DEK),8,16));
my $B;
my $A = pack ("H*", $iv);
my $A;
my @R = ();
if (defined $additional_param)
{
$additional_param = pack ("H*", $additional_param);
$A = substr ($additional_param, 0, 8);
$B = 0x00 x 8;
$R[1] = substr ($additional_param, 8, 8);
$R[2] = substr ($additional_param, 16, 8);
for (my $j = $iteration - 1; $j >= 0; $j--)
{
$A = substr ($A, 0, 8) ^ pack ("l", (2 * $j + 2));
$B = $R[2];
$A = $aes->decrypt ($A . $B . "\x00" x 16, $KEK);
$R[2] = substr ($A, 8, 16);
$A = substr ($A, 0, 8) ^ pack ("l", (2 * $j + 1));
$B = $R[1];
$A = $aes->decrypt ($A . $B . "\x00" x 16, $KEK);
$R[1] = substr ($A, 8, 16);
}
# check if valid
if (index ($A, "\xa6\xa6\xa6\xa6\xa6\xa6\xa6\xa6") != 0)
{
# fake wrong @R and $A values
@R = ('', "\x00" x 8, "\x00" x 8);
$A = "\x00" x 16;
}
}
else
{
my $DEK = randbytes (16);
@R = ('', substr (pack ("H*", $DEK), 0, 8), substr (pack ("H*", $DEK), 8, 16));
$A = pack ("H*", $iv);
}
for (my $j = 0; $j < $iteration; $j++)
{
@ -7038,11 +7122,11 @@ END_CODE
{
my @salt_arr = split ('\*', $salt_buf);
my $version = $salt_arr[0];
my $version = $salt_arr[0];
my $iteration = $salt_arr[1];
my $iteration = $salt_arr[1];
my $algorithm = $salt_arr[2];
my $algorithm = $salt_arr[2];
my $final_random_seed = $salt_arr[3];
@ -7077,13 +7161,17 @@ END_CODE
if ($version == 1)
{
$contents_hash = $salt_arr[6];
$contents_hash = pack ("H*", $contents_hash);
$inline_flag = $salt_arr[7];
$contents_len = $salt_arr[8];
$contents = $salt_arr[9];
$contents = pack ("H*", $contents);
# keyfile handling
@ -7101,6 +7189,7 @@ END_CODE
. "*" . $keyfile_content;
$intermediate_hash = $intermediate_hash . pack ("H*", $keyfile_content);
$intermediate_hash = sha256 ($intermediate_hash);
}
}
@ -7123,6 +7212,7 @@ END_CODE
. "*" . $keyfile_content;
}
$intermediate_hash = sha256 ($intermediate_hash);
}
@ -7161,9 +7251,30 @@ END_CODE
if ($version == 1)
{
$contents_hash = sha256 ($contents);
if (defined $additional_param)
{
# if we try to verify the crack, we need to decrypt the contents instead of only encrypting it:
$contents = $cipher->decrypt ($contents);
# and check the output
my $contents_hash_old = $contents_hash;
$contents_hash = sha256 ($contents);
if ($contents_hash_old ne $contents_hash)
{
# fake content
$contents = "\x00" x length ($contents);
}
}
else
{
$contents_hash = sha256 ($contents);
}
$contents = $cipher->encrypt($contents);
$contents = $cipher->encrypt ($contents);
$tmp_hash = sprintf ('$keepass$*%d*%d*%d*%s*%s*%s*%s*%d*%d*%s%s',
$version,
@ -7180,12 +7291,12 @@ END_CODE
}
if ($version == 2)
{
$expected_bytes = $salt_arr[6];
$expected_bytes = $salt_arr[6];
$contents_hash = $salt_arr[7];
$contents_hash = pack ("H*", $contents_hash);
$expected_bytes = $cipher->decrypt($contents_hash);
$expected_bytes = $cipher->decrypt ($contents_hash);
$tmp_hash = sprintf ('$keepass$*%d*%d*%d*%s*%s*%s*%s*%s%s',
$version,
@ -8673,7 +8784,7 @@ sub get_random_kerberos5_tgs_salt
my $realm = "realm";
my $spn = "test/spn";
my $salt_buf = $user . "\$" . $realm . "\$" . $spn . "\$" . unpack ("H*",$nonce);
my $salt_buf = $user . "\$" . $realm . "\$" . $spn . "\$" . unpack ("H*", $nonce);
return $salt_buf;
}

Write Preview
Loading…
Cancel
Save