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[backend] move X509 stuff from BSASN1.pm to BSX509.pm
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,107 @@ | ||
| # | ||
| # Copyright (c) 2017 SUSE Inc. | ||
| # | ||
| # This program is free software; you can redistribute it and/or modify | ||
| # it under the terms of the GNU General Public License version 2 as | ||
| # published by the Free Software Foundation. | ||
| # | ||
| # This program is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| # GNU General Public License for more details. | ||
| # | ||
| # You should have received a copy of the GNU General Public License | ||
| # along with this program (see the file COPYING); if not, write to the | ||
| # Free Software Foundation, Inc., | ||
| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA | ||
| # | ||
| ################################################################ | ||
| # | ||
| # certificate/pubkey definitions and helper functions | ||
| # | ||
|
|
||
| package BSX509; | ||
|
|
||
| use BSASN1; | ||
|
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| use strict; | ||
|
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||
| our $oid_common_name = BSASN1::asn1_obj_id(2, 5, 4, 3); | ||
| our $oid_country_name = BSASN1::asn1_obj_id(2, 5, 4, 6); | ||
| our $oid_org_name = BSASN1::asn1_obj_id(2, 5, 4, 10); | ||
| our $oid_org_unit_name = BSASN1::asn1_obj_id(2, 5, 4, 11); | ||
| our $oid_email_address = BSASN1::asn1_obj_id(1, 2, 840, 113549, 1, 9, 1); | ||
| our $oid_sha1 = BSASN1::asn1_obj_id(1, 3, 14, 3, 2, 26); | ||
| our $oid_sha256 = BSASN1::asn1_obj_id(2, 16, 840, 1, 101, 3, 4, 2, 1); | ||
| our $oid_sha512 = BSASN1::asn1_obj_id(2, 16, 840, 1, 101, 3, 4, 2, 3); | ||
| our $oid_id_dsa = BSASN1::asn1_obj_id(1, 2, 840, 10040, 4, 1); | ||
| our $oid_id_ec_public_key = BSASN1::asn1_obj_id(1, 2, 840, 10045, 2, 1); | ||
| our $oid_prime256v1 = BSASN1::asn1_obj_id(1, 2, 840, 10045, 3, 1, 7); | ||
| our $oid_rsaencryption = BSASN1::asn1_obj_id(1, 2, 840, 113549, 1, 1, 1); | ||
| our $oid_sha1withrsaencryption = BSASN1::asn1_obj_id(1, 2, 840, 113549, 1, 1, 5); | ||
| our $oid_sha256withrsaencryption = BSASN1::asn1_obj_id(1, 2, 840, 113549, 1, 1, 11); | ||
| our $oid_key_usage = BSASN1::asn1_obj_id(2, 5, 29, 15); | ||
| our $oid_basic_constraints = BSASN1::asn1_obj_id(2, 5, 29, 19); | ||
| our $oid_ext_key_usage = BSASN1::asn1_obj_id(2, 5, 29, 37); | ||
| our $oid_code_signing = BSASN1::asn1_obj_id(1, 3, 6, 1, 5, 5, 7, 3, 3); | ||
|
|
||
| sub keydata_getmpi { | ||
| my ($bits) = @_; | ||
| my $p = BSASN1::asn1_unpack_integer_mpi($bits); | ||
| my $nb = length($p) * 8; | ||
| if ($nb) { | ||
| my $first = unpack('C', $p); | ||
| $first < $_ && $nb-- for (128, 64, 32, 16, 8, 4, 2); | ||
| } | ||
| return { 'bits' => $nb, 'data' => $p }; | ||
| } | ||
|
|
||
| sub pubkey2keydata { | ||
| my ($pkder) = @_; | ||
| my ($algoident, $bits) = BSASN1::asn1_unpack_sequence($pkder); | ||
| my ($algooid, $algoparams) = BSASN1::asn1_unpack_sequence($algoident); | ||
| my $algo; | ||
| if ($algooid eq $BSASN1::oid_rsaencryption) { | ||
| $algo = 'rsa'; | ||
| } elsif ($algooid eq $BSASN1::oid_id_dsa) { | ||
| $algo = 'dsa'; | ||
| } elsif ($algooid eq $BSASN1::oid_id_ec_public_key) { | ||
| $algo = 'ecdsa'; | ||
| } else { | ||
| die("unknown pubkey algorithm\n"); | ||
| } | ||
| (undef, undef, $bits) = BSASN1::asn1_unpack($bits, $BSASN1::BIT_STRING); | ||
| die("bits does not start with 0\n") unless unpack('C', $bits) == 0; | ||
| $bits = substr($bits, 1); | ||
| my @mpis; | ||
| my $res = { 'algo' => $algo }; | ||
| my $nbits; | ||
| if ($algo eq 'dsa') { | ||
| push @mpis, keydata_getmpi($_) for BSASN1::asn1_unpack_sequence($algoparams); | ||
| push @mpis, keydata_getmpi($bits); | ||
| $nbits = $mpis[-1]->{'bits'}; | ||
| } elsif ($algo eq 'rsa') { | ||
| push @mpis, keydata_getmpi($_) for BSASN1::asn1_unpack_sequence($bits); | ||
| $nbits = $mpis[0]->{'bits'}; | ||
| } elsif ($algo eq 'ecdsa') { | ||
| my $curve; | ||
| (undef, undef, undef, $curve) = BSASN1::asn1_unpack($algoparams, $BSASN1::OBJ_ID, 1); | ||
| if ($curve && $curve eq $BSASN1::oid_prime256v1) { | ||
| $res->{'curve'} = 'prime256v1'; | ||
| $nbits = 256; | ||
| } elsif (length($bits) > 1) { | ||
| my $f = unpack('C', $bits); | ||
| if ($f == 2 || $f == 3) { | ||
| $nbits = (length($bits) - 1) * 8; | ||
| } elsif ($f == 4) { | ||
| $nbits = (length($bits) - 1) / 2 * 8; | ||
| } | ||
| } | ||
| $res->{'point'} = $bits; | ||
| } | ||
| $res->{'mpis'} = \@mpis if @mpis; | ||
| $res->{'keysize'} = ($nbits + 31) & ~31 if $nbits; | ||
| return $res; | ||
| } | ||
|
|
||
| 1; |