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Diff for /palm/Palm-Keyring/lib/Palm/Keyring.pm between version 1.7 and 1.10

version 1.7, 2006/11/10 16:45:42 version 1.10, 2006/12/06 18:45:42
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 #   This started as Memo.pm, I just made it work for Keyring.  #   This started as Memo.pm, I just made it work for Keyring.
 #  #
 # $Id$  # $Id$
 # $RedRiver: Keyring.pm,v 1.6 2006/11/10 16:18:59 andrew Exp $  # $RedRiver: Keyring.pm,v 1.9 2006/11/10 17:49:51 andrew Exp $
   
 use strict;  use strict;
 package Palm::Keyring;  package Palm::Keyring;
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         $self->{version} = 4;          $self->{version} = 4;
   
         # Give the PDB the first record that will hold the encrypted password          # Give the PDB the first record that will hold the encrypted password
         $self->{records} = [ {          $self->{records} = [ $self->new_Record ];
                 'category'   => 0,  
                 'attributes' => {  
                         'private' => 1,  
                         'Secret'  => 1,  
                         'Dirty'   => 1,  
                         'dirty'   => 1,  
                 },  
         }, ];  
   
         if ($pass) {          if ($pass) {
                 $self->Encrypt($pass);                  $self->Encrypt($pass);
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 sub Load  sub Load
 {  {
         my $self = shift;          my $self = shift;
           $self->{'appinfo'} = {};
           $self->{'records'} = [];
         $self->SUPER::Load(@_);          $self->SUPER::Load(@_);
   
         foreach my $record (@{ $self->{records} }) {          foreach my $record (@{ $self->{records} }) {
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 {  {
         my $self = shift;          my $self = shift;
         $self->Encrypt() || return undef;          $self->Encrypt() || return undef;
         return $self->SUPER::Load(@_);          return $self->SUPER::Write(@_);
 }  }
   
 sub Encrypt  sub Encrypt
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         # AFAIK the thing we use to test the password is          # AFAIK the thing we use to test the password is
         #     always in the first entry          #     always in the first entry
         my $data = $self->{records}->[1]->{data};          my $data = $self->{records}->[0]->{data};
         #die "No encrypted password in file!" unless defined $data;          #die "No encrypted password in file!" unless defined $data;
         return undef unless defined $data;          return undef unless defined $data;
   
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         die "No password specified!" unless $pass;          die "No password specified!" unless $pass;
   
         # if the database already has a password in it          # if the database already has a password in it
         if ($self->{records}->[1]->{data}) {          if ($self->{records}->[0]->{data}) {
                 # Make sure everything is decrypted before we update the keyring                  # Make sure everything is decrypted before we update the keyring
                 $self->Decrypt() || return undef;                  $self->Decrypt() || return undef;
         }          }
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         # AFAIK the thing we use to test the password is          # AFAIK the thing we use to test the password is
         #     always in the first entry          #     always in the first entry
         $self->{records}->[1]->{data} = $data;          $self->{records}->[0]->{data} = $data;
   
         $self->{password} = $pass;          $self->{password} = $pass;
         $self->{digest}   = _calc_keys($self->{password});          $self->{digest}   = _calc_keys($self->{password});
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 }  }
   
   
 # XXX Have to make this encrypt as well as decrypting, but w00 h00!  # XXX It looks like they are using des_ecb2_encrypt so I dunno if that is different
 # do null padding on the end of a cleartext if we are going to encrypt it  
 sub _crypt3des {  sub _crypt3des {
         my ( $plaintext, $passphrase, $flag ) = @_;          my ( $plaintext, $passphrase, $flag ) = @_;
           my $NULL = chr(0);
   
         $passphrase .= ' ' x (16*3);          $passphrase .= ' ' x (16*3);
         my $cyphertext = "";          my $cyphertext = "";
   
   
         my $size = length ( $plaintext );          my $size = length ( $plaintext );
         #print "STRING: '$plaintext' - Length: " . length($plaintext) . "\n";          #print "STRING: '$plaintext' - Length: " . length($plaintext) . "\n";
   
         # This check should see if it is plaintext first, if it is,  
         #   pad it with \000  
         # if not, then die  
         die "record not 8 byte padded" if (length($plaintext) % 8) && ! $flag;  
   
         my @C;          my @C;
         for ( 0..2 ) {          for ( 0..2 ) {
                 $C[$_] = new Crypt::DES( pack( "H*", substr($passphrase, 16*$_, 16 )));                  $C[$_] = new Crypt::DES( pack( "H*", substr($passphrase, 16*$_, 16 )));
         }          }
   
         for ( 0 .. (($size)/8) - 1) {  
   # XXX From Crypt::TripleDES
   # http://search.cpan.org/src/VIPUL/Crypt-TripleDES-0.24/lib/Crypt/TripleDES.pm
   #
   #    for ( 0 .. (($size)/8) -1 ) {
   #     my $pt = substr( $plaintext, $_*8, 8 );
   #        $pt = Crypt::PPDES::des_ecb_encrypt( $flag ? $keyvecs{0} : $keyvecs{2}, $flag, $pt );
   #        $pt = Crypt::PPDES::des_ecb_encrypt( $keyvecs{1}, (not $flag), $pt );
   #        $pt = Crypt::PPDES::des_ecb_encrypt( $flag ? $keyvecs{2} : $keyvecs{0}, $flag, $pt );
   #        $cyphertext .= $pt;
   #    }
   
           for ( 0 .. (($size)/8)) {
                 my $pt = substr( $plaintext, $_*8, 8 );                  my $pt = substr( $plaintext, $_*8, 8 );
                 #print "PT: '$pt' - Length: " . length($pt) . "\n";                  #print "PT: '$pt' - Length: " . length($pt) . "\n";
                   next unless length($pt);
                 if (length($pt) < 8) {                  if (length($pt) < 8) {
                           die "record not 8 byte padded" if  $flag == DECRYPT;
                         my $len = 8 - length($pt);                          my $len = 8 - length($pt);
                         print "LENGTH: $len\n";                          #print "LENGTH: $len\n";
                         print "Binary:    '" . unpack("b*", $pt) . "'\n";                          #print "Binary:    '" . unpack("b*", $pt) . "'\n";
                         $pt .= (chr(0) x $len);# . $pt;                          $pt .= ($NULL x $len);
                         print "Binary:    '" . unpack("b*", $pt) . "'\n";  
                         #print "PT: '$pt' - Length: " . length($pt) . "\n";                          #print "PT: '$pt' - Length: " . length($pt) . "\n";
                           #print "Binary:    '" . unpack("b*", $pt) . "'\n";
                 }                  }
                 $pt = $C[0]->decrypt( $pt );                  if ($flag == ENCRYPT) {
                 $pt = $C[1]->encrypt( $pt );                          $pt = $C[0]->encrypt( $pt );
                 $pt = $C[2]->decrypt( $pt );                          $pt = $C[1]->decrypt( $pt );
                           $pt = $C[2]->encrypt( $pt );
                   } else {
                           $pt = $C[0]->decrypt( $pt );
                           $pt = $C[1]->encrypt( $pt );
                           $pt = $C[2]->decrypt( $pt );
                   }
                 #print "PT: '$pt' - Length: " . length($pt) . "\n";                  #print "PT: '$pt' - Length: " . length($pt) . "\n";
                 $cyphertext .= $pt;                  $cyphertext .= $pt;
         }          }
   
         return substr ( $cyphertext, 0, $size );          $cyphertext =~ s/$NULL+$//;
           #print "CT: '$cyphertext' - Length: " . length($cyphertext) . "\n";
   
           return $cyphertext;
 }  }
   
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