| version 1.27, 2007/02/10 16:21:28 |
version 1.41, 2007/02/23 03:38:07 |
|
|
| package Palm::Keyring; |
package Palm::Keyring; |
| # $RedRiver: Keyring.pm,v 1.26 2007/02/06 02:58:50 andrew Exp $ |
# $RedRiver: Keyring.pm,v 1.40 2007/02/23 03:32:46 andrew Exp $ |
| ######################################################################## |
######################################################################## |
| # Keyring.pm *** Perl class for Keyring for Palm OS databases. |
# Keyring.pm *** Perl class for Keyring for Palm OS databases. |
| # |
# |
|
|
| |
|
| use base qw/ Palm::StdAppInfo /; |
use base qw/ Palm::StdAppInfo /; |
| |
|
| use Digest::MD5 qw(md5); |
|
| use Crypt::DES; |
|
| |
|
| my $ENCRYPT = 1; |
my $ENCRYPT = 1; |
| my $DECRYPT = 0; |
my $DECRYPT = 0; |
| my $MD5_CBLOCK = 64; |
my $MD5_CBLOCK = 64; |
|
|
| my $SPACE = q{ }; |
my $SPACE = q{ }; |
| my $NULL = chr 0; |
my $NULL = chr 0; |
| |
|
| our $VERSION = 0.94; |
my @CRYPTS = ( |
| |
{ |
| |
alias => 'None', |
| |
name => 'None', |
| |
keylen => 8, |
| |
blocksize => 1, |
| |
default_iter => 500, |
| |
}, |
| |
{ |
| |
alias => 'DES-EDE3', |
| |
name => 'DES_EDE3', |
| |
keylen => 24, |
| |
blocksize => 8, |
| |
DES_odd_parity => 1, |
| |
default_iter => 1000, |
| |
}, |
| |
{ |
| |
alias => 'AES128', |
| |
name => 'Rijndael', |
| |
keylen => 16, |
| |
blocksize => 16, |
| |
default_iter => 100, |
| |
}, |
| |
{ |
| |
alias => 'AES256', |
| |
name => 'Rijndael', |
| |
keylen => 32, |
| |
blocksize => 16, |
| |
default_iter => 250, |
| |
}, |
| |
); |
| |
|
| sub new { |
|
| |
our $VERSION = 0.95; |
| |
|
| |
sub new |
| |
{ |
| my $classname = shift; |
my $classname = shift; |
| my $pass = shift; |
my $options = {}; |
| |
|
| |
# hashref arguments |
| |
if (ref $_[0] eq 'HASH') { |
| |
$options = shift; |
| |
} |
| |
|
| |
# CGI style arguments |
| |
elsif ($_[0] =~ /^-[a-zA-Z0-9_]{1,20}$/) { |
| |
my %tmp = @_; |
| |
while ( my($key,$value) = each %tmp) { |
| |
$key =~ s/^-//; |
| |
$options->{lc $key} = $value; |
| |
} |
| |
} |
| |
|
| |
else { |
| |
$options->{password} = shift; |
| |
$options->{version} = shift; |
| |
} |
| |
|
| # Create a generic PDB. No need to rebless it, though. |
# Create a generic PDB. No need to rebless it, though. |
| my $self = $classname->SUPER::new(@_); |
my $self = $classname->SUPER::new(); |
| |
|
| $self->{'name'} = 'Keys-Gtkr'; # Default |
$self->{name} = 'Keys-Gtkr'; # Default |
| $self->{'creator'} = 'Gtkr'; |
$self->{creator} = 'Gtkr'; |
| $self->{'type'} = 'Gkyr'; |
$self->{type} = 'Gkyr'; |
| |
|
| # The PDB is not a resource database by |
# The PDB is not a resource database by |
| # default, but it's worth emphasizing, |
# default, but it's worth emphasizing, |
| # since MemoDB is explicitly not a PRC. |
# since MemoDB is explicitly not a PRC. |
| $self->{'attributes'}{'resource'} = 0; |
$self->{attributes}{resource} = 0; |
| |
|
| # Initialize the AppInfo block |
# Set the version |
| $self->{'appinfo'} = {}; |
$self->{version} = $options->{version} || 4; |
| |
|
| # Add the standard AppInfo block stuff |
# Set options |
| Palm::StdAppInfo::seed_StdAppInfo( $self->{'appinfo'} ); |
$self->{options} = $options; |
| |
|
| # Set the version |
# Set defaults |
| $self->{'version'} = 4; |
if ($self->{version} == 5) { |
| |
$self->{options}->{cipher} ||= 0; # 'None' |
| |
my $c = crypts($self->{options}->{cipher}) |
| |
or croak('Unknown cipher ' . $self->{options}->{cipher}); |
| |
$self->{options}->{iterations} ||= $c->{default_iter}; |
| |
$self->{appinfo}->{cipher} ||= $self->{options}->{cipher}; |
| |
$self->{appinfo}->{iter} ||= $self->{options}->{iterations}; |
| |
}; |
| |
|
| if ( defined $pass ) { |
if ( defined $options->{password} ) { |
| $self->Password($pass); |
$self->Password($options->{password}); |
| } |
} |
| |
|
| return $self; |
return $self; |
| } |
} |
| |
|
| sub import { |
sub import |
| |
{ |
| Palm::PDB::RegisterPDBHandlers( __PACKAGE__, [ 'Gtkr', 'Gkyr' ], ); |
Palm::PDB::RegisterPDBHandlers( __PACKAGE__, [ 'Gtkr', 'Gkyr' ], ); |
| return 1; |
return 1; |
| } |
} |
| |
|
| sub ParseRecord { |
# Accessors |
| |
|
| |
sub crypts |
| |
{ |
| |
my $crypt = shift; |
| |
if (! defined $crypt || ! length $crypt) { |
| |
return; |
| |
} elsif ($crypt =~ /\D/) { |
| |
foreach my $c (@CRYPTS) { |
| |
if ($c->{alias} eq $crypt) { |
| |
return $c; |
| |
} |
| |
} |
| |
# didn't find it. |
| |
return; |
| |
} else { |
| |
return $CRYPTS[$crypt]; |
| |
} |
| |
} |
| |
|
| |
# ParseRecord |
| |
|
| |
sub ParseRecord |
| |
{ |
| my $self = shift; |
my $self = shift; |
| |
|
| my $rec = $self->SUPER::ParseRecord(@_); |
my $rec = $self->SUPER::ParseRecord(@_); |
| |
return $rec if ! exists $rec->{data}; |
| |
|
| # skip the 0 record that holds the password |
if ($self->{version} == 4) { |
| return $rec if ! exists $self->{'records'}; |
# skip the first record because it contains the password. |
| return $rec if ! exists $rec->{'data'}; |
return $rec if ! exists $self->{records}; |
| |
|
| my ( $name, $encrypted ) = split /$NULL/xm, $rec->{'data'}, 2; |
my ( $name, $encrypted ) = split /$NULL/xm, $rec->{data}, 2; |
| |
|
| return $rec if ! $encrypted; |
return $rec if ! $encrypted; |
| delete $rec->{'data'}; |
$rec->{name} = $name; |
| $rec->{'name'} = $name; |
$rec->{encrypted} = $encrypted; |
| $rec->{'encrypted'} = $encrypted; |
delete $rec->{data}; |
| |
|
| |
} elsif ($self->{version} == 5) { |
| |
my $c = crypts( $self->{appinfo}->{cipher} ) |
| |
or croak('Unknown cipher ' . $self->{appinfo}->{cipher}); |
| |
my $blocksize = $c->{blocksize}; |
| |
my ($field, $extra) = _parse_field($rec->{data}); |
| |
delete $rec->{data}; |
| |
|
| |
$rec->{name} = $field->{data}; |
| |
$rec->{ivec} = substr $extra, 0, $blocksize; |
| |
$rec->{encrypted} = substr $extra, $blocksize; |
| |
|
| |
} else { |
| |
die 'Unsupported Version'; |
| |
return; |
| |
} |
| |
|
| return $rec; |
return $rec; |
| } |
} |
| |
|
| sub PackRecord { |
# PackRecord |
| |
|
| |
sub PackRecord |
| |
{ |
| my $self = shift; |
my $self = shift; |
| my $rec = shift; |
my $rec = shift; |
| |
|
| if ($rec->{'encrypted'}) { |
if ($self->{version} == 4) { |
| if (! defined $rec->{'name'}) { |
if ($rec->{encrypted}) { |
| $rec->{'name'} = $EMPTY; |
if (! defined $rec->{name}) { |
| |
$rec->{name} = $EMPTY; |
| |
} |
| |
$rec->{data} = join $NULL, $rec->{name}, $rec->{encrypted}; |
| |
delete $rec->{name}; |
| |
delete $rec->{encrypted}; |
| } |
} |
| $rec->{'data'} = join $NULL, $rec->{'name'}, $rec->{'encrypted'}; |
|
| delete $rec->{'name'}; |
} elsif ($self->{version} == 5) { |
| delete $rec->{'encrypted'}; |
my $field; |
| |
if ($rec->{name}) { |
| |
$field = { |
| |
'label_id' => 1, |
| |
'data' => $rec->{name}, |
| |
'font' => 0, |
| |
}; |
| |
} else { |
| |
$field = { |
| |
'label_id' => $EMPTY, |
| |
'data' => $EMPTY, |
| |
'font' => 0, |
| |
}; |
| |
} |
| |
my $packed = _pack_field($field); |
| |
|
| |
$rec->{data} = join '', $packed, $rec->{ivec}, $rec->{encrypted}; |
| |
|
| |
} else { |
| |
die 'Unsupported Version'; |
| } |
} |
| |
|
| return $self->SUPER::PackRecord($rec, @_); |
return $self->SUPER::PackRecord($rec, @_); |
| } |
} |
| |
|
| sub Encrypt { |
# ParseAppInfoBlock |
| |
|
| |
sub ParseAppInfoBlock |
| |
{ |
| my $self = shift; |
my $self = shift; |
| |
my $data = shift; |
| |
my $appinfo = {}; |
| |
|
| |
&Palm::StdAppInfo::parse_StdAppInfo($appinfo, $data); |
| |
|
| |
# int8/uint8 |
| |
# - Signed or Unsigned Byte (8 bits). C types: char, unsigned char |
| |
# int16/uint16 |
| |
# - Signed or Unsigned Word (16 bits). C types: short, unsigned short |
| |
# int32/uint32 |
| |
# - Signed or Unsigned Doubleword (32 bits). C types: int, unsigned int |
| |
# sz |
| |
# - Zero-terminated C-style string |
| |
|
| |
if ($self->{version} == 4) { |
| |
# Nothing extra for version 4 |
| |
|
| |
} elsif ($self->{version} == 5) { |
| |
_parse_appinfo_v5($appinfo) || return; |
| |
|
| |
} else { |
| |
die "Unsupported Version"; |
| |
return; |
| |
} |
| |
|
| |
return $appinfo; |
| |
} |
| |
|
| |
sub _parse_appinfo_v5 |
| |
{ |
| |
my $appinfo = shift; |
| |
|
| |
if (! exists $appinfo->{other}) { |
| |
# XXX Corrupt appinfo? |
| |
return; |
| |
} |
| |
|
| |
my $unpackstr |
| |
= ("C1" x 8) # 8 uint8s in an array for the salt |
| |
. ("n1" x 2) # the iter (uint16) and the cipher (uint16) |
| |
. ("C1" x 8); # and finally 8 more uint8s for the hash |
| |
|
| |
my (@salt, $iter, $cipher, @hash); |
| |
(@salt[0..7], $iter, $cipher, @hash[0..7]) |
| |
= unpack $unpackstr, $appinfo->{other}; |
| |
|
| |
$appinfo->{salt} = sprintf "%02x" x 8, @salt; |
| |
$appinfo->{iter} = $iter; |
| |
$appinfo->{cipher} = $cipher; |
| |
$appinfo->{masterhash} = sprintf "%02x" x 8, @hash; |
| |
delete $appinfo->{other}; |
| |
|
| |
return $appinfo |
| |
} |
| |
|
| |
# PackAppInfoBlock |
| |
|
| |
sub PackAppInfoBlock |
| |
{ |
| |
my $self = shift; |
| |
my $retval; |
| |
|
| |
if ($self->{version} == 4) { |
| |
# Nothing to do for v4 |
| |
|
| |
} elsif ($self->{version} == 5) { |
| |
_pack_appinfo_v5($self->{appinfo}); |
| |
} else { |
| |
die "Unsupported Version"; |
| |
return; |
| |
} |
| |
return &Palm::StdAppInfo::pack_StdAppInfo($self->{appinfo}); |
| |
} |
| |
|
| |
sub _pack_appinfo_v5 |
| |
{ |
| |
my $appinfo = shift; |
| |
|
| |
my $packstr |
| |
= ("C1" x 8) # 8 uint8s in an array for the salt |
| |
. ("n1" x 2) # the iter (uint16) and the cipher (uint16) |
| |
. ("C1" x 8); # and finally 8 more uint8s for the hash |
| |
|
| |
my @salt = map { hex $_ } $appinfo->{salt} =~ /../gxm; |
| |
my @hash = map { hex $_ } $appinfo->{masterhash} =~ /../gxm; |
| |
|
| |
my $packed = pack($packstr, |
| |
@salt, |
| |
$appinfo->{iter}, |
| |
$appinfo->{cipher}, |
| |
@hash |
| |
); |
| |
|
| |
$appinfo->{other} = $packed; |
| |
|
| |
return $appinfo |
| |
} |
| |
|
| |
# Encrypt |
| |
|
| |
sub Encrypt |
| |
{ |
| |
my $self = shift; |
| my $rec = shift; |
my $rec = shift; |
| my $data = shift; |
my $data = shift; |
| my $pass = shift || $self->{'password'}; |
my $pass = shift || $self->{password}; |
| |
my $ivec = shift; |
| |
|
| if ( ! $pass) { |
if ( ! $pass && ! $self->{appinfo}->{key}) { |
| croak("'password' not set!\n"); |
croak("password not set!\n"); |
| } |
} |
| |
|
| if ( ! $rec) { |
if ( ! $rec) { |
|
|
| croak("Needed parameter 'data' not passed!\n"); |
croak("Needed parameter 'data' not passed!\n"); |
| } |
} |
| |
|
| if ( ! $self->Password($pass)) { |
if ( $pass && ! $self->Password($pass)) { |
| croak("Incorrect Password!\n"); |
croak("Incorrect Password!\n"); |
| } |
} |
| |
|
| $self->{'digest'} ||= _calc_keys( $pass ); |
my $acct; |
| |
if ($rec->{encrypted}) { |
| |
$acct = $self->Decrypt($rec, $pass); |
| |
} |
| |
|
| $data->{'account'} ||= $EMPTY; |
my $encrypted; |
| $data->{'password'} ||= $EMPTY; |
if ($self->{version} == 4) { |
| $data->{'notes'} ||= $EMPTY; |
$self->{digest} ||= _calc_keys( $pass ); |
| |
$encrypted = _encrypt_v4($data, $acct, $self->{digest}); |
| |
$rec->{name} ||= $data->{name}; |
| |
|
| |
} elsif ($self->{version} == 5) { |
| |
my @accts = ($data, $acct); |
| |
if ($self->{options}->{v4compatible}) { |
| |
$rec->{name} ||= $data->{name}; |
| |
foreach my $a (@accts) { |
| |
my @fields; |
| |
foreach my $k (sort keys %{ $a }) { |
| |
my $field = { |
| |
label => $k, |
| |
font => 0, |
| |
data => $a->{$k}, |
| |
}; |
| |
push @fields, $field; |
| |
} |
| |
$a = \@fields; |
| |
} |
| |
} |
| |
|
| |
($encrypted, $ivec) = _encrypt_v5( |
| |
@accts, |
| |
$self->{appinfo}->{key}, |
| |
$self->{appinfo}->{cipher}, |
| |
$ivec, |
| |
); |
| |
if (defined $ivec) { |
| |
$rec->{ivec} = $ivec; |
| |
} |
| |
|
| |
} else { |
| |
die "Unsupported Version"; |
| |
} |
| |
|
| |
if ($encrypted) { |
| |
if ($encrypted eq '1') { |
| |
return 1; |
| |
} |
| |
|
| |
$rec->{attributes}{Dirty} = 1; |
| |
$rec->{attributes}{dirty} = 1; |
| |
$rec->{encrypted} = $encrypted; |
| |
|
| |
return 1; |
| |
} else { |
| |
return; |
| |
} |
| |
} |
| |
|
| |
sub _encrypt_v4 |
| |
{ |
| |
my $new = shift; |
| |
my $old = shift; |
| |
my $digest = shift; |
| |
|
| |
$new->{account} ||= $EMPTY; |
| |
$new->{password} ||= $EMPTY; |
| |
$new->{notes} ||= $EMPTY; |
| |
|
| my $changed = 0; |
my $changed = 0; |
| my $need_newdate = 0; |
my $need_newdate = 0; |
| my $acct = {}; |
if ($old && %{ $old }) { |
| if ($rec->{'encrypted'}) { |
foreach my $key (keys %{ $new }) { |
| $acct = $self->Decrypt($rec, $pass); |
|
| foreach my $key (keys %{ $data }) { |
|
| next if $key eq 'lastchange'; |
next if $key eq 'lastchange'; |
| if ($data->{$key} ne $acct->{$key}) { |
if ($new->{$key} ne $old->{$key}) { |
| $changed = 1; |
$changed = 1; |
| last; |
last; |
| } |
} |
| } |
} |
| if ( exists $data->{'lastchange'} && exists $acct->{'lastchange'} && ( |
if ( exists $new->{lastchange} && exists $old->{lastchange} && ( |
| $data->{'lastchange'}->{day} != $acct->{'lastchange'}->{day} || |
$new->{lastchange}->{day} != $old->{lastchange}->{day} || |
| $data->{'lastchange'}->{month} != $acct->{'lastchange'}->{month} || |
$new->{lastchange}->{month} != $old->{lastchange}->{month} || |
| $data->{'lastchange'}->{year} != $acct->{'lastchange'}->{year} |
$new->{lastchange}->{year} != $old->{lastchange}->{year} |
| )) { |
)) { |
| $changed = 1; |
$changed = 1; |
| $need_newdate = 0; |
$need_newdate = 0; |
|
|
| |
|
| my ($day, $month, $year); |
my ($day, $month, $year); |
| |
|
| if ($data->{'lastchange'} && ! $need_newdate ) { |
if ($new->{lastchange} && ! $need_newdate ) { |
| $day = $data->{'lastchange'}->{'day'} || 1; |
$day = $new->{lastchange}->{day} || 1; |
| $month = $data->{'lastchange'}->{'month'} || 0; |
$month = $new->{lastchange}->{month} || 0; |
| $year = $data->{'lastchange'}->{'year'} || 0; |
$year = $new->{lastchange}->{year} || 0; |
| |
|
| # XXX Need to actually validate the above information somehow |
# XXX Need to actually validate the above information somehow |
| if ($year >= 1900) { |
if ($year >= 1900) { |
|
|
| if ($need_newdate) { |
if ($need_newdate) { |
| ($day, $month, $year) = (localtime)[3,4,5]; |
($day, $month, $year) = (localtime)[3,4,5]; |
| } |
} |
| $year -= 4; |
|
| $month++; |
|
| |
|
| |
my $packed_date = _pack_keyring_date( { |
| |
year => $year, |
| |
month => $month, |
| |
day => $day, |
| |
}); |
| |
|
| my $p = $day | ($month << 5) | ($year << 9); |
|
| my $packeddate = pack 'n', $p; |
|
| |
|
| my $plaintext = join $NULL, |
my $plaintext = join $NULL, |
| $data->{'account'}, $data->{'password'}, $data->{'notes'}, $packeddate; |
$new->{account}, $new->{password}, $new->{notes}, $packed_date; |
| |
|
| my $encrypted = _crypt3des( $plaintext, $self->{'digest'}, $ENCRYPT ); |
return _crypt3des( $plaintext, $digest, $ENCRYPT ); |
| |
} |
| |
|
| return if ! $encrypted; |
sub _encrypt_v5 |
| |
{ |
| |
my $new = shift; |
| |
my $old = shift; |
| |
my $key = shift; |
| |
my $cipher = shift; |
| |
my $ivec = shift; |
| |
my $c = crypts($cipher) or croak('Unknown cipher ' . $cipher); |
| |
|
| $rec->{'attributes'}{'Dirty'} = 1; |
if (! defined $ivec) { |
| $rec->{'attributes'}{'dirty'} = 1; |
$ivec = pack("C*",map {rand(256)} 1..$c->{blocksize}); |
| $rec->{'name'} ||= $data->{'name'}; |
} |
| $rec->{'encrypted'} = $encrypted; |
|
| |
|
| return 1; |
my $changed = 0; |
| |
my $need_newdate = 1; |
| |
my $date_index; |
| |
for (my $i = 0; $i < @{ $new }; $i++) { |
| |
if ( |
| |
($new->[$i]->{label_id} && $new->[$i]->{label_id} == 3) || |
| |
($new->[$i]->{label} && $new->[$i]->{label} eq 'lastchange') |
| |
) { |
| |
$date_index = $i; |
| |
if ( $old && $#{ $new } == $#{ $old } && ( |
| |
$new->[$i]{data}{day} != $old->[$i]{data}{day} || |
| |
$new->[$i]{data}{month} != $old->[$i]{data}{month} || |
| |
$new->[$i]{data}{year} != $old->[$i]{data}{year} |
| |
)) { |
| |
$changed = 1; |
| |
$need_newdate = 0; |
| |
} |
| |
|
| |
} elsif ($old && $#{ $new } == $#{ $old }) { |
| |
my $n = join ':', %{ $new->[$i] }; |
| |
my $o = join ':', %{ $old->[$i] }; |
| |
if ($n ne $o) { |
| |
$changed = 1; |
| |
} |
| |
} elsif ($#{ $new } != $#{ $old }) { |
| |
$changed = 1; |
| |
} |
| |
} |
| |
if ($old && (! @{ $old }) && $date_index) { |
| |
$need_newdate = 0; |
| |
} |
| |
|
| |
return 1, 0 if $changed == 0; |
| |
|
| |
if ($need_newdate || ! defined $date_index) { |
| |
my ($day, $month, $year) = (localtime)[3,4,5]; |
| |
my $date = { |
| |
year => $year, |
| |
month => $month, |
| |
day => $day, |
| |
}; |
| |
if (defined $date_index) { |
| |
$new->[$date_index]->{data} = $date; |
| |
} else { |
| |
push @{ $new }, { |
| |
label => 'lastchange', |
| |
font => 0, |
| |
data => $date, |
| |
}; |
| |
} |
| |
} else { |
| |
# XXX Need to actually validate the above information somehow |
| |
if ($new->[$date_index]->{data}->{year} >= 1900) { |
| |
$new->[$date_index]->{data}->{year} -= 1900; |
| |
} |
| |
} |
| |
|
| |
my $decrypted; |
| |
foreach my $field (@{ $new }) { |
| |
$decrypted .= _pack_field($field); |
| |
} |
| |
my $encrypted; |
| |
if ($c->{name} eq 'None') { |
| |
# do nothing |
| |
$encrypted = $decrypted; |
| |
|
| |
} elsif ($c->{name} eq 'DES_EDE3' or $c->{name} eq 'Rijndael') { |
| |
require Crypt::CBC; |
| |
my $cbc = Crypt::CBC->new( |
| |
-key => $key, |
| |
-literal_key => 1, |
| |
-iv => $ivec, |
| |
-cipher => $c->{name}, |
| |
-keysize => $c->{keylen}, |
| |
-blocksize => $c->{blocksize}, |
| |
-header => 'none', |
| |
-padding => 'oneandzeroes', |
| |
); |
| |
|
| |
if (! $c) { |
| |
croak("Unable to set up encryption!"); |
| |
} |
| |
|
| |
$encrypted = $cbc->encrypt($decrypted); |
| |
|
| |
} else { |
| |
die "Unsupported Version"; |
| |
} |
| |
|
| |
return $encrypted, $ivec; |
| } |
} |
| |
|
| sub Decrypt { |
# Decrypt |
| |
|
| |
sub Decrypt |
| |
{ |
| my $self = shift; |
my $self = shift; |
| my $rec = shift; |
my $rec = shift; |
| my $pass = shift || $self->{'password'}; |
my $pass = shift || $self->{password}; |
| |
|
| if ( ! $pass) { |
if ( ! $pass && ! $self->{appinfo}->{key}) { |
| croak("'password' not set!\n"); |
croak("password not set!\n"); |
| } |
} |
| |
|
| if ( ! $rec) { |
if ( ! $rec) { |
| croak("Needed parameter 'record' not passed!\n"); |
croak("Needed parameter 'record' not passed!\n"); |
| } |
} |
| |
|
| if ( ! $self->Password($pass)) { |
if ( $pass && ! $self->Password($pass)) { |
| croak("Invalid Password!\n"); |
croak("Invalid Password!\n"); |
| } |
} |
| |
|
| if ( ! $rec->{'encrypted'} ) { |
if ( ! $rec->{encrypted} ) { |
| croak("No encrypted content!"); |
croak("No encrypted content!"); |
| } |
} |
| |
|
| $self->{'digest'} ||= _calc_keys( $pass ); |
if ($self->{version} == 4) { |
| |
$self->{digest} ||= _calc_keys( $pass ); |
| |
my $acct = _decrypt_v4($rec->{encrypted}, $self->{digest}); |
| |
$acct->{name} ||= $rec->{name}; |
| |
return $acct; |
| |
|
| my $decrypted = |
} elsif ($self->{version} == 5) { |
| _crypt3des( $rec->{'encrypted'}, $self->{'digest'}, $DECRYPT ); |
my $fields = _decrypt_v5( |
| my ( $account, $password, $notes, $packeddate ) = split /$NULL/xm, |
$rec->{encrypted}, $self->{appinfo}->{key}, |
| $decrypted, 4; |
$self->{appinfo}->{cipher}, $rec->{ivec}, |
| |
); |
| |
if ($self->{options}->{v4compatible}) { |
| |
my %acct; |
| |
foreach my $f (@{ $fields }) { |
| |
$acct{ $f->{label} } = $f->{data}; |
| |
} |
| |
$acct{name} ||= $rec->{name}; |
| |
return \%acct; |
| |
} else { |
| |
return $fields; |
| |
} |
| |
|
| my %Modified; |
} else { |
| if ($packeddate) { |
die "Unsupported Version"; |
| my $u = unpack 'n', $packeddate; |
} |
| my $year = (($u & 0xFE00) >> 9) + 4; # since 1900 |
return; |
| my $month = (($u & 0x01E0) >> 5) - 1; # 0-11 |
} |
| my $day = (($u & 0x001F) >> 0); # 1-31 |
|
| |
|
| %Modified = ( |
sub _decrypt_v4 |
| year => $year, |
{ |
| month => $month || 0, |
my $encrypted = shift; |
| day => $day || 1, |
my $digest = shift; |
| ); |
|
| |
my $decrypted = _crypt3des( $encrypted, $digest, $DECRYPT ); |
| |
my ( $account, $password, $notes, $packed_date ) |
| |
= split /$NULL/xm, $decrypted, 4; |
| |
|
| |
my $modified; |
| |
if ($packed_date) { |
| |
$modified = _parse_keyring_date($packed_date); |
| } |
} |
| |
|
| return { |
return { |
| name => $rec->{'name'}, |
|
| account => $account, |
account => $account, |
| password => $password, |
password => $password, |
| notes => $notes, |
notes => $notes, |
| lastchange => \%Modified, |
lastchange => $modified, |
| }; |
}; |
| } |
} |
| |
|
| sub Password { |
sub _decrypt_v5 |
| |
{ |
| |
|
| |
my $encrypted = shift; |
| |
my $key = shift; |
| |
my $cipher = shift; |
| |
my $ivec = shift; |
| |
|
| |
my $c = crypts($cipher) or croak('Unknown cipher ' . $cipher); |
| |
|
| |
my $decrypted; |
| |
|
| |
if ($c->{name} eq 'None') { |
| |
# do nothing |
| |
$decrypted = $encrypted; |
| |
|
| |
} elsif ($c->{name} eq 'DES_EDE3' or $c->{name} eq 'Rijndael') { |
| |
require Crypt::CBC; |
| |
my $cbc = Crypt::CBC->new( |
| |
-key => $key, |
| |
-literal_key => 1, |
| |
-iv => $ivec, |
| |
-cipher => $c->{name}, |
| |
-keysize => $c->{keylen}, |
| |
-blocksize => $c->{blocksize}, |
| |
-header => 'none', |
| |
-padding => 'oneandzeroes', |
| |
); |
| |
|
| |
if (! $c) { |
| |
croak("Unable to set up encryption!"); |
| |
} |
| |
my $len = $c->{blocksize} - length($encrypted) % $c->{blocksize}; |
| |
$encrypted .= $NULL x $len; |
| |
$decrypted = $cbc->decrypt($encrypted); |
| |
|
| |
} else { |
| |
die "Unsupported Version"; |
| |
return; |
| |
} |
| |
|
| |
my @fields; |
| |
while ($decrypted) { |
| |
my $field; |
| |
($field, $decrypted) = _parse_field($decrypted); |
| |
if (! $field) { |
| |
last; |
| |
} |
| |
push @fields, $field; |
| |
} |
| |
|
| |
return \@fields; |
| |
} |
| |
|
| |
# Password |
| |
|
| |
sub Password |
| |
{ |
| my $self = shift; |
my $self = shift; |
| my $pass = shift; |
my $pass = shift; |
| my $new_pass = shift; |
my $new_pass = shift; |
| |
|
| if (! $pass) { |
if (! $pass) { |
| delete $self->{password}; |
delete $self->{password}; |
| return 1; |
delete $self->{appinfo}->{key}; |
| |
return 1; |
| } |
} |
| |
|
| if (! exists $self->{'records'}) { |
if ( |
| # Give the PDB the first record that will hold the encrypted password |
($self->{version} == 4 && ! exists $self->{records}) || |
| $self->{'records'} = [ $self->new_Record ]; |
($self->{version} == 5 && ! exists $self->{appinfo}->{masterhash}) |
| |
) { |
| |
if ($self->{version} == 4) { |
| |
# Give the PDB the first record that will hold the encrypted password |
| |
$self->{records} = [ $self->new_Record ]; |
| |
} |
| |
|
| return $self->_password_update($pass); |
return $self->_password_update($pass); |
| } |
} |
| |
|
| if ($new_pass) { |
if ($new_pass) { |
| |
my $v4compat = $self->{options}->{v4compatible}; |
| |
$self->{options}->{v4compatible} = 0; |
| |
|
| my @accts = (); |
my @accts = (); |
| foreach my $i (0..$#{ $self->{'records'} }) { |
foreach my $i (0..$#{ $self->{records} }) { |
| if ($i == 0) { |
if ($self->{version} == 4 && $i == 0) { |
| push @accts, undef; |
push @accts, undef; |
| next; |
next; |
| } |
} |
| my $acct = $self->Decrypt($self->{'records'}->[$i], $pass); |
my $acct = $self->Decrypt($self->{records}->[$i], $pass); |
| if ( ! $acct ) { |
if ( ! $acct ) { |
| croak("Couldn't decrypt $self->{'records'}->[$i]->{'name'}"); |
croak("Couldn't decrypt $self->{records}->[$i]->{name}"); |
| } |
} |
| push @accts, $acct; |
push @accts, $acct; |
| } |
} |
|
|
| $pass = $new_pass; |
$pass = $new_pass; |
| |
|
| foreach my $i (0..$#accts) { |
foreach my $i (0..$#accts) { |
| next if $i == 0; |
if ($self->{version} == 4 && $i == 0) { |
| delete $self->{'records'}->[$i]->{'encrypted'}; |
next; |
| $self->Encrypt($self->{'records'}->[$i], $accts[$i], $pass); |
} |
| |
delete $self->{records}->[$i]->{encrypted}; |
| |
$self->Encrypt($self->{records}->[$i], $accts[$i], $pass); |
| } |
} |
| |
|
| |
$self->{options}->{v4compatible} = $v4compat; |
| } |
} |
| |
|
| return $self->_password_verify($pass); |
if (defined $self->{password} && $pass eq $self->{password}) { |
| |
# already verified this password |
| |
return 1; |
| |
} |
| |
|
| |
if ($self->{version} == 4) { |
| |
# AFAIK the thing we use to test the password is |
| |
# always in the first entry |
| |
my $valid = _password_verify_v4($pass, $self->{records}->[0]->{data}); |
| |
|
| |
# May as well generate the keys we need now, since we know the password is right |
| |
if ($valid) { |
| |
$self->{digest} = _calc_keys($pass); |
| |
if ($self->{digest} ) { |
| |
$self->{password} = $pass; |
| |
return 1; |
| |
} |
| |
} |
| |
} elsif ($self->{version} == 5) { |
| |
return _password_verify_v5($self->{appinfo}, $pass); |
| |
} else { |
| |
# XXX unsupported version |
| |
} |
| |
|
| |
return; |
| } |
} |
| |
|
| sub _calc_keys { |
sub _password_verify_v4 |
| |
{ |
| |
require Digest::MD5; |
| |
import Digest::MD5 qw(md5); |
| |
|
| my $pass = shift; |
my $pass = shift; |
| if (! defined $pass) { croak('No password defined!'); }; |
my $data = shift; |
| |
|
| my $digest = md5($pass); |
if (! $pass) { croak('No password specified!'); }; |
| |
|
| my ( $key1, $key2 ) = unpack 'a8a8', $digest; |
# XXX die "No encrypted password in file!" unless defined $data; |
| |
if ( ! defined $data) { return; }; |
| |
|
| #-------------------------------------------------- |
$data =~ s/$NULL$//xm; |
| # print "key1: $key1: ", length $key1, "\n"; |
|
| # print "key2: $key2: ", length $key2, "\n"; |
|
| #-------------------------------------------------- |
|
| |
|
| $digest = unpack 'H*', $key1 . $key2 . $key1; |
my $salt = substr $data, 0, $kSalt_Size; |
| |
|
| #-------------------------------------------------- |
my $msg = $salt . $pass; |
| # print "Digest: ", $digest, "\n"; |
$msg .= "\0" x ( $MD5_CBLOCK - length $msg ); |
| # print length $digest, "\n"; |
|
| #-------------------------------------------------- |
|
| |
|
| return $digest; |
my $digest = md5($msg); |
| |
|
| |
if ($data ne $salt . $digest ) { |
| |
return; |
| |
} |
| |
|
| |
return 1; |
| } |
} |
| |
|
| sub _password_verify { |
sub _password_verify_v5 |
| my $self = shift; |
{ |
| my $pass = shift; |
my $appinfo = shift; |
| |
my $pass = shift; |
| |
|
| if (! $pass) { croak('No password specified!'); }; |
my $salt = pack("H*", $appinfo->{salt}); |
| |
|
| if (defined $self->{'password'} && $pass eq $self->{'password'}) { |
my $c = crypts($appinfo->{cipher}) |
| # already verified this password |
or croak('Unknown cipher ' . $appinfo->{cipher}); |
| return 1; |
my ($key, $hash) = _calc_key_v5( |
| |
$pass, $salt, $appinfo->{iter}, |
| |
$c->{keylen}, |
| |
$c->{DES_odd_parity}, |
| |
); |
| |
|
| |
#print "Iter: '" . $appinfo->{iter} . "'\n"; |
| |
#print "Key: '". unpack("H*", $key) . "'\n"; |
| |
#print "Salt: '". unpack("H*", $salt) . "'\n"; |
| |
#print "Hash: '". $hash . "'\n"; |
| |
#print "Hash: '". $appinfo->{masterhash} . "'\n"; |
| |
|
| |
if ($appinfo->{masterhash} eq $hash) { |
| |
$appinfo->{key} = $key; |
| |
} else { |
| |
return; |
| } |
} |
| |
|
| # AFAIK the thing we use to test the password is |
return $key; |
| # always in the first entry |
} |
| my $data = $self->{'records'}->[0]->{'data'}; |
|
| |
|
| #die "No encrypted password in file!" unless defined $data; |
|
| if ( ! defined $data) { return; }; |
|
| |
|
| $data =~ s/$NULL$//xm; |
sub _password_update |
| |
{ |
| |
# It is very important to Encrypt after calling this |
| |
# (Although it is generally only called by Encrypt) |
| |
# because otherwise the data will be out of sync with the |
| |
# password, and that would suck! |
| |
my $self = shift; |
| |
my $pass = shift; |
| |
|
| my $salt = substr $data, 0, $kSalt_Size; |
if ($self->{version} == 4) { |
| |
my $data = _password_update_v4($pass, @_); |
| |
|
| my $msg = $salt . $pass; |
if (! $data) { |
| |
carp("Failed to update password!"); |
| |
return; |
| |
} |
| |
|
| $msg .= "\0" x ( $MD5_CBLOCK - length $msg ); |
# AFAIK the thing we use to test the password is |
| |
# always in the first entry |
| |
$self->{records}->[0]->{data} = $data; |
| |
$self->{password} = $pass; |
| |
$self->{digest} = _calc_keys( $self->{password} ); |
| |
|
| my $digest = md5($msg); |
return 1; |
| |
|
| if ( $data eq $salt . $digest ) { |
} elsif ($self->{version} == 5) { |
| |
my $cipher = shift || $self->{appinfo}->{cipher}; |
| |
my $iter = shift || $self->{appinfo}->{iter}; |
| |
my $salt = shift || 0; |
| |
|
| # May as well generate the keys we need now, since we know the password is right |
my $hash = _password_update_v5( |
| $self->{'digest'} = _calc_keys($pass); |
$self->{appinfo}, $pass, $cipher, $iter, $salt |
| if ( $self->{'digest'} ) { |
); |
| $self->{'password'} = $pass; |
|
| return 1; |
if (! $hash) { |
| |
carp("Failed to update password!"); |
| |
return; |
| } |
} |
| |
|
| |
return 1; |
| |
} else { |
| |
croak("Unsupported version ($self->{version})"); |
| } |
} |
| |
|
| return; |
return; |
| } |
} |
| |
|
| sub _password_update { |
sub _password_update_v4 |
| |
{ |
| |
require Digest::MD5; |
| |
import Digest::MD5 qw(md5); |
| |
|
| # It is very important to Encrypt after calling this |
|
| # (Although it is generally only called by Encrypt) |
|
| # because otherwise the data will be out of sync with the |
|
| # password, and that would suck! |
|
| my $self = shift; |
|
| my $pass = shift; |
my $pass = shift; |
| |
|
| if (! defined $pass) { croak('No password specified!'); }; |
if (! defined $pass) { croak('No password specified!'); }; |
| |
|
| my $salt; |
my $salt; |
|
|
| |
|
| my $data = $salt . $digest; # . "\0"; |
my $data = $salt . $digest; # . "\0"; |
| |
|
| # AFAIK the thing we use to test the password is |
return $data; |
| # always in the first entry |
} |
| $self->{'records'}->[0]->{'data'} = $data; |
|
| |
|
| $self->{'password'} = $pass; |
sub _password_update_v5 |
| $self->{'digest'} = _calc_keys( $self->{'password'} ); |
{ |
| |
my $appinfo = shift; |
| |
my $pass = shift; |
| |
my $cipher = shift; |
| |
my $iter = shift; |
| |
|
| return 1; |
# I thought this needed to be 'blocksize', but apparently not. |
| |
#my $length = $CRYPTS[ $cipher ]{blocksize}; |
| |
my $length = 8; |
| |
my $salt = shift || pack("C*",map {rand(256)} 1..$length); |
| |
|
| |
my $c = crypts($cipher) or croak('Unknown cipher ' . $cipher); |
| |
my ($key, $hash) = _calc_key_v5( |
| |
$pass, $salt, $iter, |
| |
$c->{keylen}, |
| |
$c->{DES_odd_parity}, |
| |
); |
| |
|
| |
$appinfo->{salt} = unpack "H*", $salt; |
| |
$appinfo->{iter} = $iter; |
| |
$appinfo->{cipher} = $cipher; |
| |
$appinfo->{masterhash} = $hash; |
| |
$appinfo->{key} = $key; |
| |
|
| |
return $key; |
| } |
} |
| |
|
| sub _crypt3des { |
# Helpers |
| |
|
| |
sub _calc_keys |
| |
{ |
| |
my $pass = shift; |
| |
if (! defined $pass) { croak('No password defined!'); }; |
| |
|
| |
my $digest = md5($pass); |
| |
|
| |
my ( $key1, $key2 ) = unpack 'a8a8', $digest; |
| |
|
| |
#-------------------------------------------------- |
| |
# print "key1: $key1: ", length $key1, "\n"; |
| |
# print "key2: $key2: ", length $key2, "\n"; |
| |
#-------------------------------------------------- |
| |
|
| |
$digest = unpack 'H*', $key1 . $key2 . $key1; |
| |
|
| |
#-------------------------------------------------- |
| |
# print "Digest: ", $digest, "\n"; |
| |
# print length $digest, "\n"; |
| |
#-------------------------------------------------- |
| |
|
| |
return $digest; |
| |
} |
| |
|
| |
sub _calc_key_v5 |
| |
{ |
| |
my ($pass, $salt, $iter, $keylen, $dop) = @_; |
| |
|
| |
require Digest::HMAC_SHA1; |
| |
import Digest::HMAC_SHA1 qw(hmac_sha1); |
| |
require Digest::SHA1; |
| |
import Digest::SHA1 qw(sha1); |
| |
|
| |
my $key = _pbkdf2( $pass, $salt, $iter, $keylen, \&hmac_sha1 ); |
| |
if ($dop) { $key = DES_odd_parity($key); } |
| |
|
| |
my $hash = unpack("H*", substr(sha1($key.$salt),0, 8)); |
| |
|
| |
return $key, $hash; |
| |
} |
| |
|
| |
sub _crypt3des |
| |
{ |
| |
require Crypt::DES; |
| |
|
| my ( $plaintext, $passphrase, $flag ) = @_; |
my ( $plaintext, $passphrase, $flag ) = @_; |
| |
|
| $passphrase .= $SPACE x ( 16 * 3 ); |
$passphrase .= $SPACE x ( 16 * 3 ); |
|
|
| if ( (length $pt) < 8 ) { |
if ( (length $pt) < 8 ) { |
| if ($flag == $DECRYPT) { croak('record not 8 byte padded'); }; |
if ($flag == $DECRYPT) { croak('record not 8 byte padded'); }; |
| my $len = 8 - (length $pt); |
my $len = 8 - (length $pt); |
| |
|
| #print "LENGTH: $len\n"; |
|
| #print "Binary: '" . unpack("b*", $pt) . "'\n"; |
|
| $pt .= ($NULL x $len); |
$pt .= ($NULL x $len); |
| |
|
| #print "PT: '$pt' - Length: " . length($pt) . "\n"; |
|
| #print "Binary: '" . unpack("b*", $pt) . "'\n"; |
|
| } |
} |
| if ( $flag == $ENCRYPT ) { |
if ( $flag == $ENCRYPT ) { |
| $pt = $C[0]->encrypt($pt); |
$pt = $C[0]->encrypt($pt); |
|
|
| return $cyphertext; |
return $cyphertext; |
| } |
} |
| |
|
| |
sub _parse_field |
| |
{ |
| |
my $field = shift; |
| |
|
| |
my @labels; |
| |
$labels[0] = 'name'; |
| |
$labels[1] = 'account'; |
| |
$labels[2] = 'password'; |
| |
$labels[3] = 'lastchange'; |
| |
$labels[255] = 'notes'; |
| |
|
| |
my ($len) = unpack "n1", $field; |
| |
if ($len + 4 > length $field) { |
| |
return undef, $field; |
| |
} |
| |
my $unpackstr = "x2 C1 C1 A$len"; |
| |
my $offset = 2 +1 +1 +$len; |
| |
if ($len % 2) { # && $len + 4 < length $field) { |
| |
# trim the 0/1 byte padding for next even address. |
| |
$offset++; |
| |
$unpackstr .= ' x' |
| |
} |
| |
|
| |
my ($label, $font, $data) = unpack $unpackstr, $field; |
| |
my $leftover = substr $field, $offset; |
| |
|
| |
if ($label && $label == 3) { |
| |
$data = _parse_keyring_date($data); |
| |
} |
| |
return { |
| |
#len => $len, |
| |
label => $labels[ $label ] || $label, |
| |
label_id => $label, |
| |
font => $font, |
| |
data => $data, |
| |
}, $leftover; |
| |
} |
| |
|
| |
sub _pack_field |
| |
{ |
| |
my $field = shift; |
| |
|
| |
my %labels = ( |
| |
name => 0, |
| |
account => 1, |
| |
password => 2, |
| |
lastchange => 3, |
| |
notes => 255, |
| |
); |
| |
|
| |
my $packed; |
| |
if (defined $field) { |
| |
my $label = $field->{label_id} || 0; |
| |
if (defined $field->{label} && ! $label) { |
| |
$label = $labels{ $field->{label} }; |
| |
} |
| |
my $font = $field->{font} || 0; |
| |
my $data = defined $field->{data} ? $field->{data} : $EMPTY; |
| |
|
| |
if ($label && $label == 3) { |
| |
$data = _pack_keyring_date($data); |
| |
} |
| |
my $len = length $data; |
| |
my $packstr = "n1 C1 C1 A*"; |
| |
|
| |
$packed = pack $packstr, ($len, $label, $font, $data); |
| |
|
| |
if ($len % 2) { |
| |
# add byte padding for next even address. |
| |
$packed .= $NULL; |
| |
} |
| |
} else { |
| |
my $packstr = "n1 C1 C1 x1"; |
| |
$packed = pack $packstr, 0, 0, 0; |
| |
} |
| |
|
| |
return $packed; |
| |
} |
| |
|
| |
sub _parse_keyring_date |
| |
{ |
| |
my $data = shift; |
| |
|
| |
my $u = unpack 'n', $data; |
| |
my $year = (($u & 0xFE00) >> 9) + 4; # since 1900 |
| |
my $month = (($u & 0x01E0) >> 5) - 1; # 0-11 |
| |
my $day = (($u & 0x001F) >> 0); # 1-31 |
| |
|
| |
return { |
| |
year => $year, |
| |
month => $month || 0, |
| |
day => $day || 1, |
| |
}; |
| |
} |
| |
|
| |
sub _pack_keyring_date |
| |
{ |
| |
my $d = shift; |
| |
my $year = $d->{year}; |
| |
my $month = $d->{month}; |
| |
my $day = $d->{day}; |
| |
|
| |
$year -= 4; |
| |
$month++; |
| |
|
| |
return pack 'n', $day | ($month << 5) | ($year << 9); |
| |
} |
| |
|
| |
|
| |
sub _hexdump |
| |
{ |
| |
my $prefix = shift; # What to print in front of each line |
| |
my $data = shift; # The data to dump |
| |
my $maxlines = shift; # Max # of lines to dump |
| |
my $offset; # Offset of current chunk |
| |
|
| |
for ($offset = 0; $offset < length($data); $offset += 16) |
| |
{ |
| |
my $hex; # Hex values of the data |
| |
my $ascii; # ASCII values of the data |
| |
my $chunk; # Current chunk of data |
| |
|
| |
last if defined($maxlines) && ($offset >= ($maxlines * 16)); |
| |
|
| |
$chunk = substr($data, $offset, 16); |
| |
|
| |
($hex = $chunk) =~ s/./sprintf "%02x ", ord($&)/ges; |
| |
|
| |
($ascii = $chunk) =~ y/\040-\176/./c; |
| |
|
| |
printf "%s %-48s|%-16s|\n", $prefix, $hex, $ascii; |
| |
} |
| |
} |
| |
|
| |
sub _bindump |
| |
{ |
| |
my $prefix = shift; # What to print in front of each line |
| |
my $data = shift; # The data to dump |
| |
my $maxlines = shift; # Max # of lines to dump |
| |
my $offset; # Offset of current chunk |
| |
|
| |
for ($offset = 0; $offset < length($data); $offset += 8) |
| |
{ |
| |
my $bin; # binary values of the data |
| |
my $ascii; # ASCII values of the data |
| |
my $chunk; # Current chunk of data |
| |
|
| |
last if defined($maxlines) && ($offset >= ($maxlines * 8)); |
| |
|
| |
$chunk = substr($data, $offset, 8); |
| |
|
| |
($bin = $chunk) =~ s/./sprintf "%08b ", ord($&)/ges; |
| |
|
| |
($ascii = $chunk) =~ y/\040-\176/./c; |
| |
|
| |
printf "%s %-72s|%-8s|\n", $prefix, $bin, $ascii; |
| |
} |
| |
} |
| |
|
| |
# Thanks to Jochen Hoenicke <hoenicke@gmail.com> |
| |
# (one of the authors of Palm Keyring) |
| |
# for these next two subs. |
| |
|
| |
# Usage pbkdf2(password, salt, iter, keylen, prf) |
| |
# iter is number of iterations |
| |
# keylen is length of generated key in bytes |
| |
# prf is the pseudo random function (e.g. hmac_sha1) |
| |
# returns the key. |
| |
sub _pbkdf2($$$$$) |
| |
{ |
| |
my ($password, $salt, $iter, $keylen, $prf) = @_; |
| |
my ($k, $t, $u, $ui, $i); |
| |
$t = ""; |
| |
for ($k = 1; length($t) < $keylen; $k++) { |
| |
$u = $ui = &$prf($salt.pack('N', $k), $password); |
| |
for ($i = 1; $i < $iter; $i++) { |
| |
$ui = &$prf($ui, $password); |
| |
$u ^= $ui; |
| |
} |
| |
$t .= $u; |
| |
} |
| |
return substr($t, 0, $keylen); |
| |
} |
| |
|
| |
sub DES_odd_parity($) { |
| |
my $key = $_[0]; |
| |
my ($r, $i); |
| |
my @odd_parity = ( |
| |
1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14, |
| |
16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31, |
| |
32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47, |
| |
49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62, |
| |
64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79, |
| |
81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94, |
| |
97, 97, 98, 98,100,100,103,103,104,104,107,107,109,109,110,110, |
| |
112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127, |
| |
128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143, |
| |
145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158, |
| |
161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174, |
| |
176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191, |
| |
193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206, |
| |
208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223, |
| |
224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239, |
| |
241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254); |
| |
for ($i = 0; $i< length($key); $i++) { |
| |
$r .= chr($odd_parity[ord(substr($key, $i, 1))]); |
| |
} |
| |
return $r; |
| |
} |
| |
|
| 1; |
1; |
| __END__ |
__END__ |
| |
|
| =head1 NAME |
=head1 NAME |
| |
|
| Palm::Keyring - Handler for Palm Keyring databases. |
Palm::Keyring - Handler for Palm Keyring databases. |
|
|
| It has the standard Palm::PDB methods with 2 additional public methods. |
It has the standard Palm::PDB methods with 2 additional public methods. |
| Decrypt and Encrypt. |
Decrypt and Encrypt. |
| |
|
| It currently supports the v4 Keyring databases. The v5 databases from |
It currently supports the v4 Keyring databases as well as |
| the pre-release keyring-2.0 are not supported. |
the pre-release v5 databases. I am not completely happy with the interface |
| |
for accessing v5 databases, so any suggestions on improvements on |
| |
the interface are appreciated. |
| |
|
| This module doesn't store the decrypted content. It only keeps it until it |
This module doesn't store the decrypted content. It only keeps it until it |
| returns it to you or encrypts it. |
returns it to you or encrypts it. |
|
|
| my $pdb = new Palm::PDB; |
my $pdb = new Palm::PDB; |
| $pdb->Load($file); |
$pdb->Load($file); |
| |
|
| foreach (0..$#{ $pdb->{'records'} }) { |
foreach (0..$#{ $pdb->{records} }) { |
| next if $_ = 0; # skip the password record |
# skip the password record for version 4 databases |
| my $rec = $pdb->{'records'}->[$_]; |
next if $_ == 0 && $pdb->{version} == 4; |
| |
my $rec = $pdb->{records}->[$_]; |
| my $acct = $pdb->Decrypt($rec, $pass); |
my $acct = $pdb->Decrypt($rec, $pass); |
| print $rec->{'name'}, ' - ', $acct->{'account'}, "\n"; |
print $rec->{name}, ' - '; |
| |
if ($pdb->{version} == 4 || $pdb->{options}->{v4compatible}) { |
| |
print ' - ', $acct->{account}; |
| |
} else { |
| |
foreach my $a (@{ $acct }) { |
| |
if ($a->{label} eq 'account') { |
| |
print ' - ', $a->{data}; |
| |
last; |
| |
} |
| |
} |
| |
} |
| |
print "\n"; |
| } |
} |
| |
|
| =head1 SUBROUTINES/METHODS |
=head1 SUBROUTINES/METHODS |
| |
|
| =head2 new |
=head2 new |
| |
|
| $pdb = new Palm::Keyring([$password]); |
$pdb = new Palm::Keyring([$password[, $version]]); |
| |
|
| Create a new PDB, initialized with the various Palm::Keyring fields |
Create a new PDB, initialized with the various Palm::Keyring fields |
| and an empty record list. |
and an empty record list. |
|
|
| If you pass in a password, it will initalize the first record with the encrypted |
If you pass in a password, it will initalize the first record with the encrypted |
| password. |
password. |
| |
|
| |
new() now also takes options in other formats |
| |
|
| |
$pdb = new Palm::Keyring({ key1 => value1, key2 => value2 }); |
| |
$pdb = new Palm::Keyring( -key1 => value1, -key2 => value2); |
| |
|
| |
=over |
| |
|
| |
=item Supported options |
| |
|
| |
=over |
| |
|
| |
=item password |
| |
|
| |
The password used to initialize the database |
| |
|
| |
=item version |
| |
|
| |
The version of database to create. Accepts either 4 or 5. Currently defaults to 4. |
| |
|
| |
=item v4compatible |
| |
|
| |
The format of the fields passed to Encrypt and returned from Decrypt have changed. |
| |
This allows programs to use the newer databases with few changes but with less features. |
| |
|
| |
=item cipher |
| |
|
| |
The cipher to use. Either the number or the name. |
| |
|
| |
0 => None |
| |
1 => DES_EDE3 |
| |
2 => AES128 |
| |
3 => AES256 |
| |
|
| |
=item iterations |
| |
|
| |
The number of iterations to encrypt with. |
| |
|
| |
=item options |
| |
|
| |
A hashref of the options that are set |
| |
|
| |
=back |
| |
|
| |
=back |
| |
|
| |
For v5 databases there are some additional appinfo fields set. |
| |
These are set either on new() or Load(). |
| |
|
| |
$pdb->{appinfo} = { |
| |
# normal appinfo stuff described in L<Palm::StdAppInfo> |
| |
cipher => The index number of the cipher being used |
| |
iter => Number of iterations for the cipher |
| |
}; |
| |
|
| |
=head2 crypt |
| |
|
| |
Pass in the alias of the crypt to use, or the index. |
| |
|
| |
These only make sense for v5 databases. |
| |
|
| |
This is a function, not a method. |
| |
|
| |
$cipher can be 0, 1, 2, 3, None, DES_EDE3, AES128 or AES256. |
| |
|
| |
my $c = Palm::Keyring::crypt($cipher); |
| |
|
| |
$c is now: |
| |
|
| |
$c = { |
| |
alias => (None|DES_EDE3|AES128|AES256), |
| |
name => (None|DES_EDE3|Rijndael), |
| |
keylen => <key length of the ciphe>, |
| |
blocksize => <block size of the cipher>, |
| |
default_iter => <default iterations for the cipher>, |
| |
}; |
| |
|
| =head2 Encrypt |
=head2 Encrypt |
| |
|
| $pdb->Encrypt($rec, $acct[, $password]); |
$pdb->Encrypt($rec, $acct[, $password[, $ivec]]); |
| |
|
| Encrypts an account into a record, either with the password previously |
Encrypts an account into a record, either with the password previously |
| used, or with a password that is passed. |
used, or with a password that is passed. |
| |
|
| $rec is a record from $pdb->{'records'} or a new_Record(). |
$ivec is the initialization vector to use to encrypt the record. This is |
| $acct is a hashref in the format below. |
not used by v4 databases. Normally this is not passed and is generated |
| |
randomly. |
| |
|
| my $acct = { |
$rec is a record from $pdb->{records} or a new_Record(). |
| name => $rec->{'name'}, |
The v4 $acct is a hashref in the format below. |
| |
|
| |
my $v4acct = { |
| |
name => $rec->{name}, |
| account => $account, |
account => $account, |
| password => $password, |
password => $password, |
| notes => $notes, |
notes => $notes, |
|
|
| }, |
}, |
| }; |
}; |
| |
|
| |
The v5 $acct is an arrayref full of hashrefs that contain each encrypted field. |
| |
|
| |
my $v5acct = [ |
| |
{ |
| |
'label_id' => 2, |
| |
'data' => 'abcd1234', |
| |
'label' => 'password', |
| |
'font' => 0 |
| |
}, |
| |
{ |
| |
'label_id' => 3, |
| |
'data' => { |
| |
'month' => 1, |
| |
'day' => 11, |
| |
'year' => 107 |
| |
}, |
| |
'label' => 'lastchange', |
| |
'font' => 0 |
| |
}, |
| |
{ |
| |
'label_id' => 255, |
| |
'data' => 'This is a short note.', |
| |
'label' => 'notes', |
| |
'font' => 0 |
| |
} |
| |
]; |
| |
|
| |
|
| |
The account name is stored in $rec->{name} for both v4 and v5 databases. |
| |
It is not returned in the decrypted information for v5. |
| |
|
| |
$rec->{name} = 'account name'; |
| |
|
| If you have changed anything other than the lastchange, or don't pass in a |
If you have changed anything other than the lastchange, or don't pass in a |
| lastchange key, Encrypt() will generate a new lastchange date for you. |
lastchange key, Encrypt() will generate a new lastchange date for you. |
| |
|
| If you pass in a lastchange field that is different than the one in the |
If you pass in a lastchange field that is different than the one in the |
| record, it will honor what you passed in. |
record, it will honor what you passed in. |
| |
|
| Encrypt() only uses the $acct->{'name'} if there is not already a $rec->{'name'}. |
Encrypt() only uses the $acct->{name} if there is not already a $rec->{name}. |
| |
|
| =head2 Decrypt |
=head2 Decrypt |
| |
|
| my $acct = $pdb->Decrypt($rec[, $password]); |
my $acct = $pdb->Decrypt($rec[, $password]); |
| |
|
| Decrypts the record and returns a hashref for the account as described |
Decrypts the record and returns a reference for the account as described |
| under Encrypt(). |
under Encrypt(). |
| |
|
| foreach (0..$#{ $pdb->{'records'}) { |
foreach (0..$#{ $pdb->{records} }) { |
| next if $_ == 0; |
next if $_ == 0 && $pdb->{version} == 4; |
| my $rec = $pdb->{'records'}->[$_]; |
my $rec = $pdb->{records}->[$_]; |
| my $acct = $pdb->Decrypt($rec[, $password]); |
my $acct = $pdb->Decrypt($rec); |
| # do something with $acct |
# do something with $acct |
| } |
} |
| |
|
| |
|
| =head2 Password |
=head2 Password |
| |
|
| $pdb->Password([$password[, $new_password]]); |
$pdb->Password([$password[, $new_password]]); |
|
|
| |
|
| If nothing is passed, it forgets the password that it was remembering. |
If nothing is passed, it forgets the password that it was remembering. |
| |
|
| |
After a successful password verification the following fields are set |
| |
|
| |
For v4 |
| |
|
| |
$pdb->{digest} = the calculated digest used from the key; |
| |
$pdb->{password} = the password that was passed in; |
| |
|
| |
For v5 |
| |
|
| |
$pdb->{appinfo} = { |
| |
# As described under new() with these additional fields |
| |
cipher => The index number of the cipher being used |
| |
iter => Number of iterations for the cipher |
| |
key => The key that is calculated from the password |
| |
and salt and is used to decrypt the records. |
| |
masterhash => the hash of the key that is stored in the |
| |
database. Either set when Loading the database |
| |
or when setting a new password. |
| |
salt => the salt that is either read out of the database |
| |
or calculated when setting a new password. |
| |
}; |
| |
|
| =head1 DEPENDENCIES |
=head1 DEPENDENCIES |
| |
|
| Palm::StdAppInfo |
Palm::StdAppInfo |
| |
|
| |
B<For v4 databases> |
| |
|
| Digest::MD5 |
Digest::MD5 |
| |
|
| Crypt::DES |
Crypt::DES |
| |
|
| Readonly |
B<For v5 databases> |
| |
|
| |
Digest::HMAC_SHA1 |
| |
|
| |
Digest::SHA1 |
| |
|
| |
Depending on how the database is encrypted |
| |
|
| |
Crypt::CBC - For any encryption but None |
| |
|
| |
Crypt::DES_EDE3 |
| |
|
| |
Crytp::Rijndael - The AES encryption schemes |
| |
|
| =head1 THANKS |
=head1 THANKS |
| |
|
| I would like to thank the helpful Perlmonk shigetsu who gave me some great advice |
I would like to thank the helpful Perlmonk shigetsu who gave me some great advice |
|
|
| |
|
| The Keyring for Palm OS website: |
The Keyring for Palm OS website: |
| L<http://gnukeyring.sourceforge.net/> |
L<http://gnukeyring.sourceforge.net/> |
| |
|
| |
The HACKING guide for palm keyring databases: |
| |
L<http://gnukeyring.cvs.sourceforge.net/*checkout*/gnukeyring/keyring/HACKING> |
| |
|
| Johan Vromans also has a wxkeyring app that now uses this module, available |
Johan Vromans also has a wxkeyring app that now uses this module, available |
| from his website at L<http://www.vromans.org/johan/software/sw_palmkeyring.html> |
from his website at L<http://www.vromans.org/johan/software/sw_palmkeyring.html> |