# FIXME: handle DSA keys as well!
-sub pem2openpgp {
+sub makeselfsig {
my $rsa = shift;
my $uid = shift;
my $args = shift;
if (! defined $args->{sig_timestamp}) {
$args->{sig_timestamp} = time();
}
- if (! defined $args->{key_timestamp}) {
- $args->{key_timestamp} = $args->{sig_timestamp} + 0;
- }
- my $key_timestamp = $args->{key_timestamp};
+ my $key_timestamp = $args->{key_timestamp} + 0;
# generate and aggregate subpackets:
$feature_subpacket.
$keyserver_pref;
- return
- make_packet($packet_types->{seckey}, make_rsa_sec_key_body($rsa, $key_timestamp)).
- make_packet($packet_types->{uid}, $uid).
- gensig($rsa, $uid, $args);
+ return gensig($rsa, $uid, $args);
}
# FIXME: handle non-RSA keys
$sig_data_to_be_hashed.
$trailer;
-
# FIXME: handle signatures over digests other than SHA256:
my $data_hash = Digest::SHA::sha256_hex($datatosign);
($tag == $packet_types->{uid}) or die "This should not be called on anything but a User ID packet\n";
read($instr, $dummy, $packetlen);
- $data->{uid} = {} unless defined $data->{uid};
$data->{uid}->{$dummy} = {};
+ $data->{current}->{uid} = $dummy;
}
my $dummy;
my $readbytes = 0;
- if ((undef $data->{key}) ||
- (undef $data->{uid}) ||
- (undef $data->{uid}->{$data->{target}->{uid}})) {
- # this is not the user ID we are looking for.
- read($instr, $dummy, $packetlen - $readbytes) or die "Could not skip past this packet.\n";
- }
+ read($instr, $dummy, $packetlen - $readbytes) or die "Could not read in this packet.\n";
- read($instr, $data, 6) or die "could not read signature header\n";
- my ($ver, $sigtype, $pubkeyalgo, $digestalgo, $subpacketsize) = unpack('CCCCn', $data);
- if ($ver != 4) {
- printf(STDERR "We only work with version 4 signatures.");
- read($instr, $dummy, $packetlen - $readbytes) or die "Could not skip past this packet.\n";
- return;
- }
- if ($pubkeyalgo != $asym_algos->{rsa}) {
- printf(STDERR "We can only work with RSA at the moment");
- read($instr, $dummy, $packetlen - $readbytes) or die "Could not skip past this packet.\n";
- return;
- }
- if ($sigtype != $sig_types->{positive_certification}) {
- # FIXME: some weird implementations might have made generic,
- # persona, or casual certifications instead of positive
- # certifications for self-sigs. Probably should handle them too.
- read($instr, $dummy, $packetlen - $readbytes) or die "Could not skip past this packet.\n";
+ if ((! defined $data->{key}) ||
+ (! defined $data->{uid}) ||
+ (! defined $data->{uid}->{$data->{target}->{uid}})) {
+ # the user ID we are looking for has not been found yet.
return;
}
- my $subpackets;
- read($instr, $subpackets, $subpacketsize) or die "could not read hashed signature subpackets.\n";
+ # FIXME: if we get two primary keys on stdin, both with the same
+ # targetd user ID, we'll store signatures from both keys, which is
+ # probably wrong.
- read($instr, $subpacketsize, 2) or die "could not read unhashed signature subpacket size.\n";
- $subpacketsize = unpack('n', $subpacketsize);
+ # the current ID is not what we're looking for:
+ return if ($data->{current}->{uid} ne $data->{target}->{uid});
- my $unhashedsubpackets;
- read($instr, $unhashedsubpackets, $subpacketsize) or die "could not read unhashed signature subpackets.\n";
-
- my $hashtail;
- read($instr, $hashtail, 2) or die "could not read left 16 bits of digest.\n";
-
- # FIXME: RSA signatures should read in how many MPIs?
+ # just storing the raw signatures for the moment:
+ push @{$data->{sigs}}, make_packet($packet_types->{sig}, $dummy);
+ return;
}
my $foundfprstr = Crypt::OpenSSL::Bignum->new_from_bin($foundfpr)->to_hex();
# left-pad with 0's to bring up to full 40-char (160-bit) fingerprint:
$foundfprstr = sprintf("%040s", $foundfprstr);
+ my $matched = 0;
# is this a match?
if ((!defined($data->{target}->{fpr})) ||
}
$data->{key} = { 'rsa' => $pubkey,
'timestamp' => $key_timestamp };
+ $matched = 1;
}
if ($tag != $packet_types->{seckey} &&
}
return;
}
- if (!defined($data->{key})) {
+ if (!$matched) {
# we don't think the public part of this key matches
if ($readbytes < $packetlen) {
read($instr, $dummy, $packetlen - $readbytes) or die "Could not skip past this packet.\n";
$fpr = uc($fpr);
}
- my $data = { 'fpr' => $fpr};
+ my $data = { target => { fpr => $fpr,
+ },
+ };
my $subs = { $packet_types->{pubkey} => \&findkey,
$packet_types->{pub_subkey} => \&findkey,
$packet_types->{seckey} => \&findkey,
return $data->{key}->{rsa};
}
+sub findkeyfprs {
+ my $data = shift;
+ my $instr = shift;
+ my $tag = shift;
+ my $packetlen = shift;
+
+ findkey($data, $instr, $tag, $packetlen);
+ if (defined($data->{key})) {
+ if (defined($data->{key}->{rsa}) && defined($data->{key}->{timestamp})) {
+ $data->{keys}->{fingerprint($data->{key}->{rsa}, $data->{key}->{timestamp})} = $data->{key};
+ } else {
+ die "should have found some key here";
+ }
+ undef($data->{key});
+ }
+};
+
+sub getallprimarykeys {
+ my $instr = shift;
+
+ my $subs = { $packet_types->{pubkey} => \&findkeyfprs,
+ $packet_types->{seckey} => \&findkeyfprs,
+ };
+ my $data = {target => { } };
+
+ packetwalk($instr, $subs, $data);
+
+ if (defined $data->{keys}) {
+ return $data->{keys};
+ } else {
+ return {};
+ }
+}
+
+sub adduserid {
+ my $instr = shift;
+ my $fpr = shift;
+ my $uid = shift;
+ my $args = shift;
+
+ if ((! defined $fpr) ||
+ (length($fpr) < 8)) {
+ die "We need at least 8 hex digits of fingerprint.\n";
+ }
+
+ $fpr = uc($fpr);
+
+ if (! defined $uid) {
+ die "No User ID defined.\n";
+ }
+
+ my $data = { target => { fpr => $fpr,
+ uid => $uid,
+ },
+ };
+ my $subs = { $packet_types->{seckey} => \&findkey,
+ $packet_types->{uid} => \&finduid,
+ $packet_types->{sig} => \&findsig,
+ };
+
+ packetwalk($instr, $subs, $data);
+
+ if ((! defined $data->{key}) ||
+ (! defined $data->{key}->{rsa}) ||
+ (! defined $data->{key}->{timestamp})) {
+ die "The key requested was not found.\n"
+ }
+
+ if (defined $data->{uid}->{$uid}) {
+ die "The requested User ID '$uid' is already associated with this key.\n";
+ }
+ $args->{key_timestamp} = $data->{key}->{timestamp};
+
+ return
+ make_packet($packet_types->{pubkey}, make_rsa_pub_key_body($data->{key}->{rsa}, $data->{key}->{timestamp})).
+ make_packet($packet_types->{uid}, $uid).
+ makeselfsig($data->{key}->{rsa},
+ $uid,
+ $args);
+
+}
+
+
sub revokeuserid {
my $instr = shift;
my $fpr = shift;
my $uid = shift;
+ my $sigtime = shift;
if ((! defined $fpr) ||
(length($fpr) < 8)) {
}
my $data = { target => { fpr => $fpr,
+ uid => $uid,
},
};
my $subs = { $packet_types->{seckey} => \&findkey,
- $packet_types->{uid} => \&finduid
+ $packet_types->{uid} => \&finduid,
+ $packet_types->{sig} => \&findsig,
};
packetwalk($instr, $subs, $data);
$revocation_reasons->{user_id_no_longer_valid}).
$revocation_reason);
+ if (! defined $sigtime) {
+ $sigtime = time();
+ }
# what does a signature like this look like?
- my $args = { 'key_timestamp' => $data->{key}->{timestamp},
- 'sig_timestamp' => time(),
- 'certification_type' => $sig_types->{certification_revocation},
- 'hashed_subpackets' => $rev_reason_subpkt,
+ my $args = { key_timestamp => $data->{key}->{timestamp},
+ sig_timestamp => $sigtime,
+ certification_type => $sig_types->{certification_revocation},
+ hashed_subpackets => $rev_reason_subpkt,
};
-
- return gensig($data->{key}->{rsa}, $data->{uid}, $args);
+ return
+ make_packet($packet_types->{pubkey}, make_rsa_pub_key_body($data->{key}->{rsa}, $data->{key}->{timestamp})).
+ make_packet($packet_types->{uid}, $uid).
+ join('', @{$data->{sigs}}).
+ gensig($data->{key}->{rsa}, $uid, $args);
}
$rsa = Crypt::OpenSSL::RSA->new_private_key($stdin);
}
- print pem2openpgp($rsa,
+ my $key_timestamp = $ENV{PEM2OPENPGP_KEY_TIMESTAMP};
+ my $sig_timestamp = $ENV{PEM2OPENPGP_TIMESTAMP};
+ $sig_timestamp = time() if (!defined $sig_timestamp);
+ $key_timestamp = $sig_timestamp if (!defined $key_timestamp);
+
+ print
+ make_packet($packet_types->{seckey}, make_rsa_sec_key_body($rsa, $key_timestamp)).
+ make_packet($packet_types->{uid}, $uid).
+ makeselfsig($rsa,
$uid,
- { sig_timestamp => $ENV{PEM2OPENPGP_TIMESTAMP},
- key_timestamp => $ENV{PEM2OPENPGP_KEY_TIMESTAMP},
+ { sig_timestamp => $sig_timestamp,
+ key_timestamp => $key_timestamp,
expiration => $ENV{PEM2OPENPGP_EXPIRATION},
usage_flags => $ENV{PEM2OPENPGP_USAGE_FLAGS},
}
open($instream,'-');
binmode($instream, ":bytes");
- my $revcert = revokeuserid($instream, $fpr, $uid);
+ my $revcert = revokeuserid($instream, $fpr, $uid, $ENV{PEM2OPENPGP_TIMESTAMP});
print $revcert;
+ } elsif (/^adduserid$/) {
+ my $fpr = shift;
+ my $uid = shift;
+ my $instream;
+ open($instream,'-');
+ binmode($instream, ":bytes");
+ my $newuid = adduserid($instream, $fpr, $uid,
+ { sig_timestamp => $ENV{PEM2OPENPGP_TIMESTAMP},
+ expiration => $ENV{PEM2OPENPGP_EXPIRATION},
+ usage_flags => $ENV{PEM2OPENPGP_USAGE_FLAGS},
+ });
+
+ print $newuid;
+ } elsif (/^listfprs$/) {
+ my $instream;
+ open($instream,'-');
+ binmode($instream, ":bytes");
+ my $keys = getallprimarykeys($instream);
+ printf("%s\n", join("\n", map { uc(unpack('H*', $_)) } keys(%{$keys})));
} else {
- die "Unrecognized subcomand. keytrans subcommands are not a stable interface!\n";
+ die "Unrecognized subcommand. keytrans subcommands are not a stable interface!\n";
}
}
}