Current File : //usr/share/perl5/vendor_perl/Crypt/X509.pm
package Crypt::X509;
use Carp;
use strict;
use warnings;
use Convert::ASN1 qw(:io :debug);
require Exporter;
our @ISA = qw(Exporter);
our %EXPORT_TAGS = ( 'all' => [qw()] );
our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
#our @EXPORT = qw(error new not_before not_after serial);
our $VERSION = '0.51';
my $parser = undef;
my $asn = undef;
my $error = undef;
my %oid2enchash = (
'1.2.840.113549.1.1.1' => { 'enc' => 'RSA' },
'1.2.840.113549.1.1.2' => { 'enc' => 'RSA', 'hash' => 'MD2' },
'1.2.840.113549.1.1.3' => { 'enc' => 'RSA', 'hash' => 'MD4' },
'1.2.840.113549.1.1.4' => { 'enc' => 'RSA', 'hash' => 'MD5' },
'1.2.840.113549.1.1.5' => { 'enc' => 'RSA', 'hash' => 'SHA1' },
'1.2.840.113549.1.1.6' => { 'enc' => 'OAEP' },
'1.2.840.113549.1.1.11' => { 'enc' => 'RSA', 'hash' => 'SHA256' },
'1.2.840.113549.1.1.12' => { 'enc' => 'RSA', 'hash' => 'SHA384' },
'1.2.840.113549.1.1.13' => { 'enc' => 'RSA', 'hash' => 'SHA512' },
'1.2.840.113549.1.1.14' => { 'enc' => 'RSA', 'hash' => 'SHA224' }
);
my %oid2attr = (
"2.5.4.3" => "CN",
"2.5.4.6" => "C",
"2.5.4.7" => "l",
"2.5.4.8" => "S",
"2.5.4.10" => "O",
"2.5.4.11" => "OU",
"1.2.840.113549.1.9.1" => "E",
"0.9.2342.19200300.100.1.1" => "UID",
"0.9.2342.19200300.100.1.25" => "DC",
"0.2.262.1.10.7.20" => "nameDistinguisher"
);
=head1 NAME
Crypt::X509 - Parse a X.509 certificate
=head1 SYNOPSIS
use Crypt::X509;
$decoded = Crypt::X509->new( cert => $cert );
$subject_email = $decoded->subject_email;
print "do not use after: ".gmtime($decoded->not_after)." GMT\n";
=head1 REQUIRES
Convert::ASN1
=head1 DESCRIPTION
B<Crypt::X509> parses X.509 certificates. Methods are provided for accessing most
certificate elements.
It is based on the generic ASN.1 module by Graham Barr, on the F<x509decode>
example by Norbert Klasen and contributions on the perl-ldap-dev-Mailinglist
by Chriss Ridd.
=head1 CONSTRUCTOR
=head2 new ( OPTIONS )
Creates and returns a parsed X.509 certificate hash, containing the parsed
contents. The data is organised as specified in RFC 2459.
By default only the first ASN.1 Layer is decoded. Nested decoding
is done automagically through the data access methods.
=over 4
=item cert =E<gt> $certificate
A variable containing the DER formatted certificate to be parsed
(eg. as stored in C<usercertificate;binary> attribute in an
LDAP-directory).
=back
use Crypt::X509;
use Data::Dumper;
$decoded= Crypt::X509->new(cert => $cert);
print Dumper($decoded);
=cut back
sub new {
my ( $class, %args ) = @_;
if ( !defined($parser) || $parser->error ) {
$parser = _init();
}
my $self = $parser->decode( $args{'cert'} );
$self->{"_error"} = $parser->error;
bless( $self, $class );
return $self;
}
=head1 METHODS
=head2 error
Returns the last error from parsing, C<undef> when no error occured.
This error is updated on deeper parsing with the data access methods.
$decoded= Crypt::X509->new(cert => $cert);
if ($decoded->error) {
warn "Error on parsing Certificate:".$decoded->error;
}
=cut back
sub error {
my $self = shift;
return $self->{"_error"};
}
=head1 DATA ACCESS METHODS
You can access all parsed data directly from the returned hash. For convenience
the following methods have been implemented to give quick access to the most-used
certificate attributes.
=head2 version
Returns the certificate's version as an integer. NOTE that version is defined as
an Integer where 0 = v1, 1 = v2, and 2 = v3.
=cut back
sub version {
my $self = shift;
return $self->{tbsCertificate}{version};
}
=head2 version_string
Returns the certificate's version as a string value.
=cut back
sub version_string {
my $self = shift;
my $v = $self->{tbsCertificate}{version};
return "v1" if $v == 0;
return "v2" if $v == 1;
return "v3" if $v == 2;
}
=head2 serial
returns the serial number (integer or Math::BigInt Object, that gets automagic
evaluated in scalar context) from the certificate
$decoded= Crypt::X509->new(cert => $cert);
print "Certificate has serial number:".$decoded->serial."\n";
=cut back
sub serial {
my $self = shift;
return $self->{tbsCertificate}{serialNumber};
}
=head2 not_before
returns the GMT-timestamp of the certificate's beginning date of validity.
If the Certificate holds this Entry in utcTime, it is guaranteed by the
RFC to been correct.
As utcTime is limited to 32-bit values (like unix-timestamps) newer certificates
hold the timesamps as "generalTime"-entries. B<The contents of "generalTime"-entries
are not well defined in the RFC and
are returned by this module unmodified>, if no utcTime-entry is found.
$decoded= Crypt::X509->new(cert => $cert);
if ($decoded->notBefore < time()) {
warn "Certificate: not yet valid!";
}
=cut back
sub not_before {
my $self = shift;
if ( $self->{tbsCertificate}{validity}{notBefore}{utcTime} ) {
return $self->{tbsCertificate}{validity}{notBefore}{utcTime};
} elsif ( $self->{tbsCertificate}{validity}{notBefore}{generalTime} ) {
return $self->{tbsCertificate}{validity}{notBefore}{generalTime};
} else {
return undef;
}
}
=head2 not_after
returns the GMT-timestamp of the certificate's ending date of validity.
If the Certificate holds this Entry in utcTime, it is guaranteed by the
RFC to been correct.
As utcTime is limited to 32-bit values (like unix-timestamps) newer certificates
hold the timesamps as "generalTime"-entries. B<The contents of "generalTime"-entries
are not well defined in the RFC and
are returned by this module unmodified>, if no utcTime-entry is found.
$decoded= Crypt::X509->new(cert => $cert);
print "Certificate expires on ".gmtime($decoded->not_after)." GMT\n";
=cut back
sub not_after {
my $self = shift;
if ( $self->{tbsCertificate}{validity}{notAfter}{utcTime} ) {
return $self->{tbsCertificate}{validity}{notAfter}{utcTime};
} elsif ( $self->{tbsCertificate}{validity}{notAfter}{generalTime} ) {
return $self->{tbsCertificate}{validity}{notAfter}{generalTime};
} else {
return undef;
}
}
=head2 signature
Return's the certificate's signature in binary DER format.
=cut back
sub signature {
my $self = shift;
return $self->{signature}[0];
}
=head2 pubkey
Returns the certificate's public key in binary DER format.
=cut back
sub pubkey {
my $self = shift;
return $self->{tbsCertificate}{subjectPublicKeyInfo}{subjectPublicKey}[0];
}
=head2 pubkey_size
Returns the certificate's public key size.
=cut back
sub pubkey_size {
my $self = shift;
return $self->{tbsCertificate}{subjectPublicKeyInfo}{subjectPublicKey}[1];
}
=head2 pubkey_algorithm
Returns the algorithm as OID string which the public key was created with.
=cut back
sub pubkey_algorithm {
my $self = shift;
return $self->{tbsCertificate}{subjectPublicKeyInfo}{algorithm}{algorithm};
}
=head2 PubKeyAlg
returns the subject public key encryption algorithm (e.g. 'RSA') as string.
$decoded= Crypt::X509->new(cert => $cert);
print "Certificate public key is encrypted with:".$decoded->PubKeyAlg."\n";
Example Output: Certificate public key is encrypted with: RSA
=cut back
sub PubKeyAlg {
my $self = shift;
return $oid2enchash{ $self->{tbsCertificate}{subjectPublicKeyInfo}{algorithm}{algorithm} }->{'enc'};
}
=head2 pubkey_components
If this certificate contains an RSA key, this function returns a
hashref { modulus => $m, exponent => $e) from that key; each value in
the hash will be an integer scalar or a Math::BigInt object.
For other pubkey types, it returns undef (implementations welcome!).
=cut back
sub pubkey_components {
my $self = shift;
if ($self->PubKeyAlg() eq 'RSA') {
my $parser = _init('RSAPubKeyInfo');
my $values = $parser->decode($self->{tbsCertificate}{subjectPublicKeyInfo}{subjectPublicKey}[0]);
return $values;
} else {
return undef;
}
}
=head2 sig_algorithm
Returns the certificate's signature algorithm as OID string
$decoded= Crypt::X509->new(cert => $cert);
print "Certificate signature is encrypted with:".$decoded->sig_algorithm."\n";>
Example Output: Certificate signature is encrypted with: 1.2.840.113549.1.1.5
=cut back
sub sig_algorithm {
my $self = shift;
return $self->{tbsCertificate}{signature}{algorithm};
}
=head2 SigEncAlg
returns the signature encryption algorithm (e.g. 'RSA') as string.
$decoded= Crypt::X509->new(cert => $cert);
print "Certificate signature is encrypted with:".$decoded->SigEncAlg."\n";
Example Output: Certificate signature is encrypted with: RSA
=cut back
sub SigEncAlg {
my $self = shift;
return $oid2enchash{ $self->{'signatureAlgorithm'}->{'algorithm'} }->{'enc'};
}
=head2 SigHashAlg
returns the signature hashing algorithm (e.g. 'SHA1') as string.
$decoded= Crypt::X509->new(cert => $cert);
print "Certificate signature is hashed with:".$decoded->SigHashAlg."\n";
Example Output: Certificate signature is encrypted with: SHA1
=cut back
sub SigHashAlg {
my $self = shift;
return $oid2enchash{ $self->{'signatureAlgorithm'}->{'algorithm'} }->{'hash'};
}
#########################################################################
# accessors - subject
#########################################################################
=head2 Subject
returns a pointer to an array of strings containing subject nameparts of the
certificate. Attributenames for the most common Attributes are translated
from the OID-Numbers, unknown numbers are output verbatim.
$decoded= Convert::ASN1::X509->new($cert);
print "DN for this Certificate is:".join(',',@{$decoded->Subject})."\n";
=cut back
sub Subject {
my $self = shift;
my ( $i, $type );
my $subjrdn = $self->{'tbsCertificate'}->{'subject'}->{'rdnSequence'};
$self->{'tbsCertificate'}->{'subject'}->{'dn'} = [];
my $subjdn = $self->{'tbsCertificate'}->{'subject'}->{'dn'};
foreach my $subj ( @{$subjrdn} ) {
foreach my $i ( @{$subj} ) {
if ( $oid2attr{ $i->{'type'} } ) {
$type = $oid2attr{ $i->{'type'} };
} else {
$type = $i->{'type'};
}
my @key = keys( %{ $i->{'value'} } );
push @{$subjdn}, $type . "=" . $i->{'value'}->{ $key[0] };
}
}
return $subjdn;
}
sub _subject_part {
my $self = shift;
my $oid = shift;
my $subjrdn = $self->{'tbsCertificate'}->{'subject'}->{'rdnSequence'};
foreach my $subj ( @{$subjrdn} ) {
foreach my $i ( @{$subj} ) {
if ( $i->{'type'} eq $oid ) {
my @key = keys( %{ $i->{'value'} } );
return $i->{'value'}->{ $key[0] };
}
}
}
return undef;
}
=head2 subject_country
Returns the string value for subject's country (= the value with the
OID 2.5.4.6 or in DN Syntax everything after C<C=>).
Only the first entry is returned. C<undef> if subject contains no country attribute.
=cut back
sub subject_country {
my $self = shift;
return _subject_part( $self, '2.5.4.6' );
}
=head2 subject_locality
Returns the string value for subject's locality (= the value with the
OID 2.5.4.7 or in DN Syntax everything after C<l=>).
Only the first entry is returned. C<undef> if subject contains no locality attribute.
=cut back
sub subject_locality {
my $self = shift;
return _subject_part( $self, '2.5.4.7' );
}
=head2 subject_state
Returns the string value for subject's state or province (= the value with the
OID 2.5.4.8 or in DN Syntax everything after C<S=>).
Only the first entry is returned. C<undef> if subject contains no state attribute.
=cut back
sub subject_state {
my $self = shift;
return _subject_part( $self, '2.5.4.8' );
}
=head2 subject_org
Returns the string value for subject's organization (= the value with the
OID 2.5.4.10 or in DN Syntax everything after C<O=>).
Only the first entry is returned. C<undef> if subject contains no organization attribute.
=cut back
sub subject_org {
my $self = shift;
return _subject_part( $self, '2.5.4.10' );
}
=head2 subject_ou
Returns the string value for subject's organizational unit (= the value with the
OID 2.5.4.11 or in DN Syntax everything after C<OU=>).
Only the first entry is returned. C<undef> if subject contains no organization attribute.
=cut back
sub subject_ou {
my $self = shift;
return _subject_part( $self, '2.5.4.11' );
}
=head2 subject_cn
Returns the string value for subject's common name (= the value with the
OID 2.5.4.3 or in DN Syntax everything after C<CN=>).
Only the first entry is returned. C<undef> if subject contains no common name attribute.
=cut back
sub subject_cn {
my $self = shift;
return _subject_part( $self, '2.5.4.3' );
}
=head2 subject_email
Returns the string value for subject's email address (= the value with the
OID 1.2.840.113549.1.9.1 or in DN Syntax everything after C<E=>).
Only the first entry is returned. C<undef> if subject contains no email attribute.
=cut back
sub subject_email {
my $self = shift;
return _subject_part( $self, '1.2.840.113549.1.9.1' );
}
#########################################################################
# accessors - issuer
#########################################################################
=head2 Issuer
returns a pointer to an array of strings building the DN of the certificate
issuer (= the DN of the CA). Attributenames for the most common Attributes
are translated from the OID-Numbers, unknown numbers are output verbatim.
$decoded= Crypt::X509->new($cert);
print "Certificate was issued by:".join(',',@{$decoded->Issuer})."\n";
=cut back
sub Issuer {
my $self = shift;
my ( $i, $type );
my $issuerdn = $self->{'tbsCertificate'}->{'issuer'}->{'rdnSequence'};
$self->{'tbsCertificate'}->{'issuer'}->{'dn'} = [];
my $issuedn = $self->{'tbsCertificate'}->{'issuer'}->{'dn'};
foreach my $issue ( @{$issuerdn} ) {
foreach my $i ( @{$issue} ) {
if ( $oid2attr{ $i->{'type'} } ) {
$type = $oid2attr{ $i->{'type'} };
} else {
$type = $i->{'type'};
}
my @key = keys( %{ $i->{'value'} } );
push @{$issuedn}, $type . "=" . $i->{'value'}->{ $key[0] };
}
}
return $issuedn;
}
sub _issuer_part {
my $self = shift;
my $oid = shift;
my $issuerrdn = $self->{'tbsCertificate'}->{'issuer'}->{'rdnSequence'};
foreach my $issue ( @{$issuerrdn} ) {
foreach my $i ( @{$issue} ) {
if ( $i->{'type'} eq $oid ) {
my @key = keys( %{ $i->{'value'} } );
return $i->{'value'}->{ $key[0] };
}
}
}
return undef;
}
=head2 issuer_cn
Returns the string value for issuer's common name (= the value with the
OID 2.5.4.3 or in DN Syntax everything after C<CN=>).
Only the first entry is returned. C<undef> if issuer contains no common name attribute.
=cut back
sub issuer_cn {
my $self = shift;
return _issuer_part( $self, '2.5.4.3' );
}
=head2 issuer_country
Returns the string value for issuer's country (= the value with the
OID 2.5.4.6 or in DN Syntax everything after C<C=>).
Only the first entry is returned. C<undef> if issuer contains no country attribute.
=cut back
sub issuer_country {
my $self = shift;
return _issuer_part( $self, '2.5.4.6' );
}
=head2 issuer_state
Returns the string value for issuer's state or province (= the value with the
OID 2.5.4.8 or in DN Syntax everything after C<S=>).
Only the first entry is returned. C<undef> if issuer contains no state attribute.
=cut back
sub issuer_state {
my $self = shift;
return _issuer_part( $self, '2.5.4.8' );
}
=head2 issuer_locality
Returns the string value for issuer's locality (= the value with the
OID 2.5.4.7 or in DN Syntax everything after C<L=>).
Only the first entry is returned. C<undef> if issuer contains no locality attribute.
=cut back
sub issuer_locality {
my $self = shift;
return _issuer_part( $self, '2.5.4.7' );
}
=head2 issuer_org
Returns the string value for issuer's organization (= the value with the
OID 2.5.4.10 or in DN Syntax everything after C<O=>).
Only the first entry is returned. C<undef> if issuer contains no organization attribute.
=cut back
sub issuer_org {
my $self = shift;
return _issuer_part( $self, '2.5.4.10' );
}
=head2 issuer_email
Returns the string value for issuer's email address (= the value with the
OID 1.2.840.113549.1.9.1 or in DN Syntax everything after C<E=>).
Only the first entry is returned. C<undef> if issuer contains no email attribute.
=cut back
sub issuer_email {
my $self = shift;
return _issuer_part( $self, '1.2.840.113549.1.9.1' );
}
#########################################################################
# accessors - extensions (automate this)
#########################################################################
=head2 KeyUsage
returns a pointer to an array of strings describing the valid Usages
for this certificate. C<undef> is returned, when the extension is not set in the
certificate.
If the extension is marked critical, this is also reported.
$decoded= Crypt::X509->new(cert => $cert);
print "Allowed usages for this Certificate are:\n".join("\n",@{$decoded->KeyUsage})."\n";
Example Output:
Allowed usages for this Certificate are:
critical
digitalSignature
keyEncipherment
dataEncipherment
=cut back
sub KeyUsage {
my $self = shift;
my $ext;
my $exts = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $exts ) { return undef; }
; # no extensions in certificate
foreach $ext ( @{$exts} ) {
if ( $ext->{'extnID'} eq '2.5.29.15' ) { #OID for keyusage
my $parsKeyU = _init('KeyUsage'); # get a parser for this
my $keyusage = $parsKeyU->decode( $ext->{'extnValue'} ); # decode the value
if ( $parsKeyU->error ) {
$self->{"_error"} = $parsKeyU->error;
return undef;
}
my $keyu = unpack( "n", ${$keyusage}[0] . ${$keyusage}[1] ) & 0xff80;
$ext->{'usage'} = [];
if ( $ext->{'critical'} ) { push @{ $ext->{'usage'} }, "critical"; } # mark as critical, if appropriate
if ( $keyu & 0x8000 ) { push @{ $ext->{'usage'} }, "digitalSignature"; }
if ( $keyu & 0x4000 ) { push @{ $ext->{'usage'} }, "nonRepudiation"; }
if ( $keyu & 0x2000 ) { push @{ $ext->{'usage'} }, "keyEncipherment"; }
if ( $keyu & 0x1000 ) { push @{ $ext->{'usage'} }, "dataEncipherment"; }
if ( $keyu & 0x0800 ) { push @{ $ext->{'usage'} }, "keyAgreement"; }
if ( $keyu & 0x0400 ) { push @{ $ext->{'usage'} }, "keyCertSign"; }
if ( $keyu & 0x0200 ) { push @{ $ext->{'usage'} }, "cRLSign"; }
if ( $keyu & 0x0100 ) { push @{ $ext->{'usage'} }, "encipherOnly"; }
if ( $keyu & 0x0080 ) { push @{ $ext->{'usage'} }, "decipherOnly"; }
return $ext->{'usage'};
}
}
return undef; # keyusage extension not found
}
=head2 ExtKeyUsage
returns a pointer to an array of ExtKeyUsage strings (or OIDs for unknown OIDs) or
C<undef> if the extension is not filled. OIDs of the following ExtKeyUsages are known:
serverAuth, clientAuth, codeSigning, emailProtection, timeStamping, OCSPSigning
If the extension is marked critical, this is also reported.
$decoded= Crypt::X509->new($cert);
print "ExtKeyUsage extension of this Certificates is: ", join(", ", @{$decoded->ExtKeyUsage}), "\n";
Example Output: ExtKeyUsage extension of this Certificates is: critical, serverAuth
=cut back
my %oid2extkeyusage = (
'1.3.6.1.5.5.7.3.1' => 'serverAuth',
'1.3.6.1.5.5.7.3.2' => 'clientAuth',
'1.3.6.1.5.5.7.3.3' => 'codeSigning',
'1.3.6.1.5.5.7.3.4' => 'emailProtection',
'1.3.6.1.5.5.7.3.8' => 'timeStamping',
'1.3.6.1.5.5.7.3.9' => 'OCSPSigning',
);
sub ExtKeyUsage {
my $self = shift;
my $ext;
my $exts = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $exts ) { return undef; }
; # no extensions in certificate
foreach $ext ( @{$exts} ) {
if ( $ext->{'extnID'} eq '2.5.29.37' ) { #OID for ExtKeyUsage
return $ext->{'oids'} if defined $ext->{'oids'};
my $parsExtKeyUsage = _init('ExtKeyUsageSyntax'); # get a parser for this
my $oids = $parsExtKeyUsage->decode( $ext->{'extnValue'} ); # decode the value
if ( $parsExtKeyUsage->error ) {
$self->{"_error"} = $parsExtKeyUsage->error;
return undef;
}
$ext->{'oids'} = [ map { $oid2extkeyusage{$_} || $_ } @$oids ];
if ( $ext->{'critical'} ) { unshift @{ $ext->{'oids'} }, "critical"; } # mark as critical, if appropriate
return $ext->{'oids'};
}
}
return undef;
}
=head2 SubjectAltName
returns a pointer to an array of strings containing alternative Subjectnames or
C<undef> if the extension is not filled. Usually this Extension holds the e-Mail
address for person-certificates or DNS-Names for server certificates.
It also pre-pends the field type (ie rfc822Name) to the returned value.
$decoded= Crypt::X509->new($cert);
print "E-Mail or Hostnames in this Certificates is/are:", join(", ", @{$decoded->SubjectAltName}), "\n";
Example Output: E-Mail or Hostnames in this Certificates is/are: rfc822Name=user@server.com
=cut back
sub SubjectAltName {
my $self = shift;
my $ext;
my $exts = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $exts ) { return undef; }
; # no extensions in certificate
foreach $ext ( @{$exts} ) {
if ( $ext->{'extnID'} eq '2.5.29.17' ) { #OID for SubjectAltName
my $parsSubjAlt = _init('SubjectAltName'); # get a parser for this
my $altnames = $parsSubjAlt->decode( $ext->{'extnValue'} ); # decode the value
if ( $parsSubjAlt->error ) {
$self->{"_error"} = $parsSubjAlt->error;
return undef;
}
$ext->{'names'} = [];
foreach my $name ( @{$altnames} ) {
foreach my $value ( keys %{$name} ) {
push @{ $ext->{'names'} }, "$value=" . $name->{$value};
}
}
return $ext->{'names'};
}
}
return undef;
}
#########################################################################
# accessors - authorityCertIssuer
#########################################################################
sub _AuthorityKeyIdentifier {
my $self = shift;
my $ext;
my $exts = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $exts ) { return undef; }
; # no extensions in certificate
if ( defined $self->{'tbsCertificate'}{'AuthorityKeyIdentifier'} ) {
return ( $self->{'tbsCertificate'}{'AuthorityKeyIdentifier'} );
}
foreach $ext ( @{$exts} ) {
if ( $ext->{'extnID'} eq '2.5.29.35' ) { #OID for AuthorityKeyIdentifier
my $pars = _init('AuthorityKeyIdentifier'); # get a parser for this
$self->{'tbsCertificate'}{'AuthorityKeyIdentifier'} = $pars->decode( $ext->{'extnValue'} ); # decode the value
if ( $pars->error ) {
$self->{"_error"} = $pars->error;
return undef;
}
return $self->{'tbsCertificate'}{'AuthorityKeyIdentifier'};
}
}
return undef;
}
=head2 authorityCertIssuer
returns a pointer to an array of strings building the DN of the Authority Cert
Issuer. Attributenames for the most common Attributes
are translated from the OID-Numbers, unknown numbers are output verbatim.
undef if the extension is not set in the certificate.
$decoded= Crypt::X509->new($cert);
print "Certificate was authorised by:".join(',',@{$decoded->authorityCertIssuer})."\n";
=cut back
sub authorityCertIssuer {
my $self = shift;
my ( $i, $type );
my $rdn = _AuthorityKeyIdentifier($self);
if ( !defined($rdn) ) {
return (undef); # we do not have that extension
} else {
$rdn = $rdn->{'authorityCertIssuer'}[0]->{'directoryName'};
}
$rdn->{'dn'} = [];
my $dn = $rdn->{'dn'};
$rdn = $rdn->{'rdnSequence'};
foreach my $r ( @{$rdn} ) {
$i = @{$r}[0];
if ( $oid2attr{ $i->{'type'} } ) {
$type = $oid2attr{ $i->{'type'} };
} else {
$type = $i->{'type'};
}
my @key = keys( %{ $i->{'value'} } );
push @{$dn}, $type . "=" . $i->{'value'}->{ $key[0] };
}
return $dn;
}
sub _authcert_part {
my $self = shift;
my $oid = shift;
my $rdn = _AuthorityKeyIdentifier($self);
if ( !defined($rdn) ) {
return (undef); # we do not have that extension
} else {
$rdn = $rdn->{'authorityCertIssuer'}[0]->{'directoryName'}->{'rdnSequence'};
}
foreach my $r ( @{$rdn} ) {
my $i = @{$r}[0];
if ( $i->{'type'} eq $oid ) {
my @key = keys( %{ $i->{'value'} } );
return $i->{'value'}->{ $key[0] };
}
}
return undef;
}
=head2 authority_serial
Returns the authority's certificate serial number.
=cut back
sub authority_serial {
my $self = shift;
return ( $self->_AuthorityKeyIdentifier )->{authorityCertSerialNumber};
}
=head2 key_identifier
Returns the authority key identifier or undef if it is a rooted cert
=cut back
sub key_identifier {
my $self = shift;
if ( defined $self->_AuthorityKeyIdentifier ) { return ( $self->_AuthorityKeyIdentifier )->{keyIdentifier}; }
return undef;
}
=head2 authority_cn
Returns the authority's ca.
=cut back
sub authority_cn {
my $self = shift;
return _authcert_part( $self, '2.5.4.3' );
}
=head2 authority_country
Returns the authority's country.
=cut back
sub authority_country {
my $self = shift;
return _authcert_part( $self, '2.5.4.6' );
}
=head2 authority_state
Returns the authority's state.
=cut back
sub authority_state {
my $self = shift;
return _authcert_part( $self, '2.5.4.8' );
}
=head2 authority_locality
Returns the authority's locality.
=cut back
sub authority_locality {
my $self = shift;
return _authcert_part( $self, '2.5.4.7' );
}
=head2 authority_org
Returns the authority's organization.
=cut back
sub authority_org {
my $self = shift;
return _authcert_part( $self, '2.5.4.10' );
}
=head2 authority_email
Returns the authority's email.
=cut back
sub authority_email {
my $self = shift;
return _authcert_part( $self, '1.2.840.113549.1.9.1' );
}
=head2 CRLDistributionPoints
Returns the CRL distribution points as an array of strings (with one value usually)
=cut back
sub CRLDistributionPoints {
my $self = shift;
my $ext;
my $exts = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $exts ) { return undef; }
; # no extensions in certificate
foreach $ext ( @{$exts} ) {
if ( $ext->{'extnID'} eq '2.5.29.31' ) { #OID for cRLDistributionPoints
my $crlp = _init('cRLDistributionPoints'); # get a parser for this
my $points = $crlp->decode( $ext->{'extnValue'} ); # decode the value
$points = $points->[0]->{'distributionPoint'}->{'fullName'};
if ( $crlp->error ) {
$self->{"_error"} = $crlp->error;
return undef;
}
foreach my $name ( @{$points} ) {
push @{ $ext->{'crlpoints'} }, $name->{'uniformResourceIdentifier'};
}
return $ext->{'crlpoints'};
}
}
return undef;
}
=head2 CRLDistributionPoints2
Returns the CRL distribution points as an array of hashes (allowing for some variations)
=cut back
# newer CRL
sub CRLDistributionPoints2 {
my $self = shift;
my %CDPs;
my $dp_cnt = 0; # this is a counter used to show which CDP a particular value is listed in
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
for my $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '2.5.29.31' ) { # OID for ARRAY of cRLDistributionPoints
my $parser = _init('cRLDistributionPoints'); # get a parser for CDPs
my $points = $parser->decode( $extension->{'extnValue'} ); # decode the values (returns an array)
for my $each_dp ( @{$points} ) { # this loops through multiple "distributionPoint" values
$dp_cnt++;
for my $each_fullName ( @{ $each_dp->{'distributionPoint'}->{'fullName'} } )
{ # this loops through multiple "fullName" values
if ( exists $each_fullName->{directoryName} ) {
# found a rdnSequence
my $rdn = join ',', reverse @{ my_CRL_rdn( $each_fullName->{directoryName}->{rdnSequence} ) };
push @{ $CDPs{$dp_cnt} }, "Directory Address: $rdn";
} elsif ( exists $each_fullName->{uniformResourceIdentifier} ) {
# found a URI
push @{ $CDPs{$dp_cnt} }, "URL: " . $each_fullName->{uniformResourceIdentifier};
} else {
# found some other type of CDP value
# return undef;
}
}
}
return %CDPs;
}
}
return undef;
}
sub my_CRL_rdn {
my $crl_rdn = shift; # this should be the passed in 'rdnSequence' array
my ( $i, $type );
my $crl_dn = [];
for my $part ( @{$crl_rdn} ) {
$i = @{$part}[0];
if ( $oid2attr{ $i->{'type'} } ) {
$type = $oid2attr{ $i->{'type'} };
} else {
$type = $i->{'type'};
}
my @key = keys( %{ $i->{'value'} } );
push @{$crl_dn}, $type . "=" . $i->{'value'}->{ $key[0] };
}
return $crl_dn;
}
=head2 CertificatePolicies
Returns the CertificatePolicies as an array of strings
=cut back
# CertificatePolicies (another extension)
sub CertificatePolicies {
my $self = shift;
my $extension;
my $CertPolicies = [];
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
for $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '2.5.29.32' ) { # OID for CertificatePolicies
my $parser = _init('CertificatePolicies'); # get a parser for this
my $policies = $parser->decode( $extension->{'extnValue'} ); # decode the value
for my $policy ( @{$policies} ) {
for my $key ( keys %{$policy} ) {
push @{$CertPolicies}, "$key=" . $policy->{$key};
}
}
return $CertPolicies;
}
}
return undef;
}
=head2 EntrustVersionInfo
Returns the EntrustVersion as a string
print "Entrust Version: ", $decoded->EntrustVersion, "\n";
Example Output: Entrust Version: V7.0
=cut back
# EntrustVersion (another extension)
sub EntrustVersion {
my $self = shift;
my $extension;
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
for $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '1.2.840.113533.7.65.0' ) { # OID for EntrustVersionInfo
my $parser = _init('EntrustVersionInfo'); # get a parser for this
my $entrust = $parser->decode( $extension->{'extnValue'} ); # decode the value
return $entrust->{'entrustVers'};
# not doing anything with the EntrustInfoFlags BIT STRING (yet)
# $entrust->{'entrustInfoFlags'}
}
}
return undef;
}
=head2 SubjectDirectoryAttributes
Returns the SubjectDirectoryAttributes as an array of key = value pairs, to include a data type
print "Subject Directory Attributes: ", join( ', ' , @{ $decoded->SubjectDirectoryAttributes } ), "\n";
Example Output: Subject Directory Attributes: 1.2.840.113533.7.68.29 = 7 (integer)
=cut back
# SubjectDirectoryAttributes (another extension)
sub SubjectDirectoryAttributes {
my $self = shift;
my $extension;
my $attributes = [];
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
for $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '2.5.29.9' ) { # OID for SubjectDirectoryAttributes
my $parser = _init('SubjectDirectoryAttributes'); # get a parser for this
my $subject_dir_attrs = $parser->decode( $extension->{'extnValue'} ); # decode the value
for my $type ( @{$subject_dir_attrs} ) {
for my $value ( @{ $type->{'values'} } ) {
for my $key ( keys %{$value} ) {
push @{$attributes}, $type->{'type'} . " = " . $value->{$key} . " ($key)";
}
}
}
return $attributes;
}
}
return undef;
}
=head2 BasicConstraints
Returns the BasicConstraints as an array and the criticallity pre-pended.
=cut back
# BasicConstraints (another extension)
sub BasicConstraints {
my $self = shift;
my $extension;
my $constraints = [];
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
for $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '2.5.29.19' ) { # OID for BasicConstraints
if ( $extension->{'critical'} ) { push @{$constraints}, "critical"; } # mark this as critical as appropriate
my $parser = _init('BasicConstraints'); # get a parser for this
my $basic_constraints = $parser->decode( $extension->{'extnValue'} ); # decode the value
for my $key ( keys %{$basic_constraints} ) {
push @{$constraints}, "$key = " . $basic_constraints->{$key};
}
return $constraints;
}
}
return undef;
}
=head2 subject_keyidentifier
Returns the subject key identifier from the extensions.
=cut back
# subject_keyidentifier (another extension)
sub subject_keyidentifier {
my $self = shift;
return $self->_SubjectKeyIdentifier;
}
# _SubjectKeyIdentifier (another extension)
sub _SubjectKeyIdentifier {
my $self = shift;
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
if ( defined $self->{'tbsCertificate'}{'SubjectKeyIdentifier'} ) {
return ( $self->{'tbsCertificate'}{'SubjectKeyIdentifier'} );
}
for my $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '2.5.29.14' ) { # OID for SubjectKeyIdentifier
my $parser = _init('SubjectKeyIdentifier'); # get a parser for this
$self->{'tbsCertificate'}{'SubjectKeyIdentifier'} = $parser->decode( $extension->{'extnValue'} ); # decode the value
if ( $parser->error ) {
$self->{"_error"} = $parser->error;
return undef;
}
return $self->{'tbsCertificate'}{'SubjectKeyIdentifier'};
}
}
return undef;
}
=head2 SubjectInfoAccess
Returns the SubjectInfoAccess as an array of hashes with key=value pairs.
print "Subject Info Access: ";
if ( defined $decoded->SubjectInfoAccess ) {
my %SIA = $decoded->SubjectInfoAccess;
for my $key ( keys %SIA ) {
print "\n\t$key: \n\t";
print join( "\n\t" , @{ $SIA{$key} } ), "\n";
}
} else { print "\n" }
Example Output:
Subject Info Access:
1.3.6.1.5.5.7.48.5:
uniformResourceIdentifier = http://pki.treas.gov/root_sia.p7c
uniformResourceIdentifier = ldap://ldap.treas.gov/ou=US%20Treasury%20Root%20CA,ou=Certification%20Authorities,ou=Department%20of%20the%20Treasury,o=U.S.%20Government,c=US?cACertificate;binary,crossCertificatePair;binary
=cut back
# SubjectInfoAccess (another extension)
sub SubjectInfoAccess {
my $self = shift;
my $extension;
my %SIA;
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
for $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '1.3.6.1.5.5.7.1.11' ) { # OID for SubjectInfoAccess
my $parser = _init('SubjectInfoAccessSyntax'); # get a parser for this
my $subject_info_access = $parser->decode( $extension->{'extnValue'} ); # decode the value
for my $sia ( @{$subject_info_access} ) {
for my $key ( keys %{ $sia->{'accessLocation'} } ) {
push @{ $SIA{ $sia->{'accessMethod'} } }, "$key = " . $sia->{'accessLocation'}{$key};
}
}
return %SIA;
}
}
return undef;
}
=head2 PGPExtension
Returns the creation timestamp of the corresponding OpenPGP key.
(see http://www.imc.org/ietf-openpgp/mail-archive/msg05320.html)
print "PGPExtension: ";
if ( defined $decoded->PGPExtension ) {
my $creationtime = $decoded->PGPExtension;
printf "\n\tcorresponding OpenPGP Creation Time: ", $creationtime, "\n";
}
Example Output:
PGPExtension:
whatever
=cut back
# PGPExtension (another extension)
sub PGPExtension {
my $self = shift;
my $extension;
my $extensions = $self->{'tbsCertificate'}->{'extensions'};
if ( !defined $extensions ) { return undef; }
; # no extensions in certificate
for $extension ( @{$extensions} ) {
if ( $extension->{'extnID'} eq '1.3.6.1.4.1.3401.8.1.1' ) { # OID for PGPExtension
my $parser = _init('PGPExtension'); # get a parser for this
my $pgpextension = $parser->decode( $extension->{'extnValue'} ); # decode the value
if ($pgpextension->{version} != 0) {
$self->{"_error"} = sprintf("got PGPExtension version %d. We only know how to deal with v1 (0)", $pgpextension->{version});
} else {
foreach my $timetype ('generalTime', 'utcTime') {
return $pgpextension->{keyCreation}->{$timetype}
if exists $pgpextension->{keyCreation}->{$timetype};
}
}
}
}
return undef;
}
#######################################################################
# internal functions
#######################################################################
sub _init {
my $what = shift;
if ( ( !defined $what ) || ( '' eq $what ) ) { $what = 'Certificate' }
if ( !defined $asn ) {
$asn = Convert::ASN1->new;
$asn->prepare(<<ASN1);
-- ASN.1 from RFC2459 and X.509(2001)
-- Adapted for use with Convert::ASN1
-- Id: x509decode,v 1.1 2002/02/10 16:41:28 gbarr Exp
-- attribute data types --
Attribute ::= SEQUENCE {
type AttributeType,
values SET OF AttributeValue
-- at least one value is required --
}
AttributeType ::= OBJECT IDENTIFIER
AttributeValue ::= DirectoryString --ANY
AttributeTypeAndValue ::= SEQUENCE {
type AttributeType,
value AttributeValue
}
-- naming data types --
Name ::= CHOICE { -- only one possibility for now
rdnSequence RDNSequence
}
RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
DistinguishedName ::= RDNSequence
RelativeDistinguishedName ::=
SET OF AttributeTypeAndValue --SET SIZE (1 .. MAX) OF
-- Directory string type --
DirectoryString ::= CHOICE {
teletexString TeletexString, --(SIZE (1..MAX)),
printableString PrintableString, --(SIZE (1..MAX)),
bmpString BMPString, --(SIZE (1..MAX)),
universalString UniversalString, --(SIZE (1..MAX)),
utf8String UTF8String, --(SIZE (1..MAX)),
ia5String IA5String, --added for EmailAddress,
integer INTEGER
}
-- certificate and CRL specific structures begin here
Certificate ::= SEQUENCE {
tbsCertificate TBSCertificate,
signatureAlgorithm AlgorithmIdentifier,
signature BIT STRING
}
TBSCertificate ::= SEQUENCE {
version [0] EXPLICIT Version OPTIONAL, --DEFAULT v1
serialNumber CertificateSerialNumber,
signature AlgorithmIdentifier,
issuer Name,
validity Validity,
subject Name,
subjectPublicKeyInfo SubjectPublicKeyInfo,
issuerUniqueID [1] IMPLICIT UniqueIdentifier OPTIONAL,
-- If present, version shall be v2 or v3
subjectUniqueID [2] IMPLICIT UniqueIdentifier OPTIONAL,
-- If present, version shall be v2 or v3
extensions [3] EXPLICIT Extensions OPTIONAL
-- If present, version shall be v3
}
Version ::= INTEGER --{ v1(0), v2(1), v3(2) }
CertificateSerialNumber ::= INTEGER
Validity ::= SEQUENCE {
notBefore Time,
notAfter Time
}
Time ::= CHOICE {
utcTime UTCTime,
generalTime GeneralizedTime
}
UniqueIdentifier ::= BIT STRING
SubjectPublicKeyInfo ::= SEQUENCE {
algorithm AlgorithmIdentifier,
subjectPublicKey BIT STRING
}
RSAPubKeyInfo ::= SEQUENCE {
modulus INTEGER,
exponent INTEGER
}
Extensions ::= SEQUENCE OF Extension --SIZE (1..MAX) OF Extension
Extension ::= SEQUENCE {
extnID OBJECT IDENTIFIER,
critical BOOLEAN OPTIONAL, --DEFAULT FALSE,
extnValue OCTET STRING
}
AlgorithmIdentifier ::= SEQUENCE {
algorithm OBJECT IDENTIFIER,
parameters ANY OPTIONAL
}
--extensions
AuthorityKeyIdentifier ::= SEQUENCE {
keyIdentifier [0] KeyIdentifier OPTIONAL,
authorityCertIssuer [1] GeneralNames OPTIONAL,
authorityCertSerialNumber [2] CertificateSerialNumber OPTIONAL }
-- authorityCertIssuer and authorityCertSerialNumber shall both
-- be present or both be absent
KeyIdentifier ::= OCTET STRING
SubjectKeyIdentifier ::= KeyIdentifier
-- key usage extension OID and syntax
-- id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 }
KeyUsage ::= BIT STRING --{
-- digitalSignature (0),
-- nonRepudiation (1),
-- keyEncipherment (2),
-- dataEncipherment (3),
-- keyAgreement (4),
-- keyCertSign (5),
-- cRLSign (6),
-- encipherOnly (7),
-- decipherOnly (8) }
-- private key usage period extension OID and syntax
-- id-ce-privateKeyUsagePeriod OBJECT IDENTIFIER ::= { id-ce 16 }
PrivateKeyUsagePeriod ::= SEQUENCE {
notBefore [0] GeneralizedTime OPTIONAL,
notAfter [1] GeneralizedTime OPTIONAL }
-- either notBefore or notAfter shall be present
-- certificate policies extension OID and syntax
-- id-ce-certificatePolicies OBJECT IDENTIFIER ::= { id-ce 32 }
CertificatePolicies ::= SEQUENCE OF PolicyInformation
PolicyInformation ::= SEQUENCE {
policyIdentifier CertPolicyId,
policyQualifiers SEQUENCE OF
PolicyQualifierInfo OPTIONAL }
CertPolicyId ::= OBJECT IDENTIFIER
PolicyQualifierInfo ::= SEQUENCE {
policyQualifierId PolicyQualifierId,
qualifier ANY } --DEFINED BY policyQualifierId }
-- Implementations that recognize additional policy qualifiers shall
-- augment the following definition for PolicyQualifierId
PolicyQualifierId ::=
OBJECT IDENTIFIER --( id-qt-cps | id-qt-unotice )
-- CPS pointer qualifier
CPSuri ::= IA5String
-- user notice qualifier
UserNotice ::= SEQUENCE {
noticeRef NoticeReference OPTIONAL,
explicitText DisplayText OPTIONAL}
NoticeReference ::= SEQUENCE {
organization DisplayText,
noticeNumbers SEQUENCE OF INTEGER }
DisplayText ::= CHOICE {
visibleString VisibleString ,
bmpString BMPString ,
utf8String UTF8String }
-- policy mapping extension OID and syntax
-- id-ce-policyMappings OBJECT IDENTIFIER ::= { id-ce 33 }
PolicyMappings ::= SEQUENCE OF SEQUENCE {
issuerDomainPolicy CertPolicyId,
subjectDomainPolicy CertPolicyId }
-- subject alternative name extension OID and syntax
-- id-ce-subjectAltName OBJECT IDENTIFIER ::= { id-ce 17 }
SubjectAltName ::= GeneralNames
GeneralNames ::= SEQUENCE OF GeneralName
GeneralName ::= CHOICE {
otherName [0] AnotherName,
rfc822Name [1] IA5String,
dNSName [2] IA5String,
x400Address [3] ANY, --ORAddress,
directoryName [4] Name,
ediPartyName [5] EDIPartyName,
uniformResourceIdentifier [6] IA5String,
iPAddress [7] OCTET STRING,
registeredID [8] OBJECT IDENTIFIER }
EntrustVersionInfo ::= SEQUENCE {
entrustVers GeneralString,
entrustInfoFlags EntrustInfoFlags }
EntrustInfoFlags::= BIT STRING --{
-- keyUpdateAllowed
-- newExtensions (1), -- not used
-- pKIXCertificate (2) } -- certificate created by pkix
-- AnotherName replaces OTHER-NAME ::= TYPE-IDENTIFIER, as
-- TYPE-IDENTIFIER is not supported in the 88 ASN.1 syntax
AnotherName ::= SEQUENCE {
type OBJECT IDENTIFIER,
value [0] EXPLICIT ANY } --DEFINED BY type-id }
EDIPartyName ::= SEQUENCE {
nameAssigner [0] DirectoryString OPTIONAL,
partyName [1] DirectoryString }
-- issuer alternative name extension OID and syntax
-- id-ce-issuerAltName OBJECT IDENTIFIER ::= { id-ce 18 }
IssuerAltName ::= GeneralNames
-- id-ce-subjectDirectoryAttributes OBJECT IDENTIFIER ::= { id-ce 9 }
SubjectDirectoryAttributes ::= SEQUENCE OF Attribute
-- basic constraints extension OID and syntax
-- id-ce-basicConstraints OBJECT IDENTIFIER ::= { id-ce 19 }
BasicConstraints ::= SEQUENCE {
cA BOOLEAN OPTIONAL, --DEFAULT FALSE,
pathLenConstraint INTEGER OPTIONAL }
-- name constraints extension OID and syntax
-- id-ce-nameConstraints OBJECT IDENTIFIER ::= { id-ce 30 }
NameConstraints ::= SEQUENCE {
permittedSubtrees [0] GeneralSubtrees OPTIONAL,
excludedSubtrees [1] GeneralSubtrees OPTIONAL }
GeneralSubtrees ::= SEQUENCE OF GeneralSubtree
GeneralSubtree ::= SEQUENCE {
base GeneralName,
minimum [0] BaseDistance OPTIONAL, --DEFAULT 0,
maximum [1] BaseDistance OPTIONAL }
BaseDistance ::= INTEGER
-- policy constraints extension OID and syntax
-- id-ce-policyConstraints OBJECT IDENTIFIER ::= { id-ce 36 }
PolicyConstraints ::= SEQUENCE {
requireExplicitPolicy [0] SkipCerts OPTIONAL,
inhibitPolicyMapping [1] SkipCerts OPTIONAL }
SkipCerts ::= INTEGER
-- CRL distribution points extension OID and syntax
-- id-ce-cRLDistributionPoints OBJECT IDENTIFIER ::= {id-ce 31}
cRLDistributionPoints ::= SEQUENCE OF DistributionPoint
DistributionPoint ::= SEQUENCE {
distributionPoint [0] DistributionPointName OPTIONAL,
reasons [1] ReasonFlags OPTIONAL,
cRLIssuer [2] GeneralNames OPTIONAL }
DistributionPointName ::= CHOICE {
fullName [0] GeneralNames,
nameRelativeToCRLIssuer [1] RelativeDistinguishedName }
ReasonFlags ::= BIT STRING --{
-- unused (0),
-- keyCompromise (1),
-- cACompromise (2),
-- affiliationChanged (3),
-- superseded (4),
-- cessationOfOperation (5),
-- certificateHold (6),
-- privilegeWithdrawn (7),
-- aACompromise (8) }
-- extended key usage extension OID and syntax
-- id-ce-extKeyUsage OBJECT IDENTIFIER ::= {id-ce 37}
ExtKeyUsageSyntax ::= SEQUENCE OF KeyPurposeId
KeyPurposeId ::= OBJECT IDENTIFIER
-- extended key purpose OIDs
-- id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 }
-- id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 }
-- id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 }
-- id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 }
-- id-kp-ipsecEndSystem OBJECT IDENTIFIER ::= { id-kp 5 }
-- id-kp-ipsecTunnel OBJECT IDENTIFIER ::= { id-kp 6 }
-- id-kp-ipsecUser OBJECT IDENTIFIER ::= { id-kp 7 }
-- id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 }
-- authority info access
-- id-pe-authorityInfoAccess OBJECT IDENTIFIER ::= { id-pe 1 }
AuthorityInfoAccessSyntax ::=
SEQUENCE OF AccessDescription --SIZE (1..MAX) OF AccessDescription
AccessDescription ::= SEQUENCE {
accessMethod OBJECT IDENTIFIER,
accessLocation GeneralName }
-- subject info access
-- id-pe-subjectInfoAccess OBJECT IDENTIFIER ::= { id-pe 11 }
SubjectInfoAccessSyntax ::=
SEQUENCE OF AccessDescription --SIZE (1..MAX) OF AccessDescription
-- pgp creation time
PGPExtension ::= SEQUENCE {
version Version, -- DEFAULT v1(0)
keyCreation Time
}
ASN1
}
my $self = $asn->find($what);
return $self;
}
=head1 SEE ALSO
See the examples of C<Convert::ASN1> and the <perl-ldap@perl.org> Mailing List.
An example on how to load certificates can be found in F<t\Crypt-X509.t>.
=head1 ACKNOWLEDGEMENTS
This module is based on the x509decode script, which was contributed to
Convert::ASN1 in 2002 by Norbert Klasen.
=head1 AUTHORS
Mike Jackson <mj@sci.fi>,
Alexander Jung <alexander.w.jung@gmail.com>,
Duncan Segrest <duncan@gigageek.info>
=head1 COPYRIGHT
Copyright (c) 2005 Mike Jackson <mj@sci.fi>.
Copyright (c) 2001-2002 Norbert Klasen, DAASI International GmbH.
All rights reserved. This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
=cut
1;
__END__
Mini Shell