NAME

Panda::NSS - Perl bindings to NSS Mozilla security library

VERSION

version 0.004

SYNOPSIS

# verify certificate
use Panda::NSS;

Panda::NSS::init($nssdb_path);
Panda::NSS::add_builtins();

my $cert = Panda::NSS::Cert->new($cert_data_in_der_format);

if ($cert->simple_verify(Panda::NSS::CERTIFICATE_USAGE_OBJECT_SIGNER)) {
    print "Certificate OK\n";
}
else {
    print "Certificate NOT VALID\n";
}

DESCRIPTION

This library is in very early stage of development. Any API can change. Currently you can verify certificates with AIA extension (when not all chain exists locally).

FUNCTIONS

Panda::NSS::init( [ $certdb_path ] )

This function initialize NSS library. It calls NSS_InitReadWrite(dbpath). However you may not specify $certdb_path, in that case NSS_NoDB_Init() called, that mode not very useful for certificate checks.

Panda::NSS::reinit()

This function should be called after fork to reinitialize NSS library. Any outstanding handles will become invalid, but new will work.

Actually this function compare current PID with saved in previous init or reinit one and calls SECMOD_RestartModules(false) if needed.

Example:

use Panda::NSS;

Panda::NSS::init($nssdb_path);

my $pid = fork();
if ($pid == 0) {
    # child
    Panda::NSS::reinit();
    # ... other code in child
}

Panda::NSS::add_builtins()

This function load nssckbi module, that contains default root certificates in NSS. May croaks if library initialized without certdb.

CONSTANTS

Certificate usage

Panda::NSS::CERTIFICATE_USAGE_CHECK_ALL_USAGES
Panda::NSS::CERTIFICATE_USAGE_SSL_CLIENT
Panda::NSS::CERTIFICATE_USAGE_SSL_SERVER
Panda::NSS::CERTIFICATE_USAGE_SSL_SERVER_WITH_STEP_UP
Panda::NSS::CERTIFICATE_USAGE_SSL_CA
Panda::NSS::CERTIFICATE_USAGE_EMAIL_SIGNER
Panda::NSS::CERTIFICATE_USAGE_EMAIL_RECIPIENT
Panda::NSS::CERTIFICATE_USAGE_OBJECT_SIGNER
Panda::NSS::CERTIFICATE_USAGE_USER_CERT_IMPORT
Panda::NSS::CERTIFICATE_USAGE_VERIFY_CA
Panda::NSS::CERTIFICATE_USAGE_PROTECTED_OBJECT_SIGNER
Panda::NSS::CERTIFICATE_USAGE_STATUS_RESPONDER
Panda::NSS::CERTIFICATE_USAGE_ANY_CA

CLASSES

`Panda::NSS::Cert`

CONSTRUCTOR

$cert = Panda::NSS::Cert->new( $data )

Constructs certificate object.

$data can be certificate in DER binary format or in PEM format (Base64 encoded DER certificate, enclosed between "-----BEGIN CERTIFICATE-----" and "-----END CERTIFICATE-----"). Format is auto-detected.

PROPERTIES

$cert->version: Returns certificate version. 1, 2 or 3.
$cert->serial_number: Returns certificate serial number as a binary string.
$cert->serial_number_hex: Returns certificate serial number as a hex encoded string.
$cert->subject: Returns certificate subject as a string.
$cert->issuer: Returns certificate issuer as a string.
$cert->common_name: Returns common name extracted from subject.
$cert->country_name: Returns country name extracted from subject.
$cert->locality_name: Returns locality name extracted from subject.
$cert->state_name: Returns state field extracted from subject.
$cert->org_name: Returns organization name extracted from subject.
$cert->org_unit_name: Returns organization unit extracted from subject.
$cert->domain_component_name: Returns domain component extracted from subject.

METHODS

$rv = $cert->simple_verify( [ $usage ], [ $time ])

Arguments:

$usage (Default: CERTIFICATE_USAGE_CHECK_ALL_USAGES): Certificate usage. One of CERTIFICATE_USAGE_* constants.
$time (Default: current time): Time at which the certificate should be valid.

Method do verification process (it uses CERT_PKIXVerifyCert from NSS).

Returns true if certificate valid.

$rv = $cert->verify_signed_data( $data, $signature, [ $time ])

Verify the signature of a signed data with the given certificate.

Returns true if signature match.

LICENSE

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

SUPPORT

Bugs / Feature Requests

Please report any bugs or feature requests through the issue tracker at https://github.com/vovkasm/perl-Panda-NSS/issues. You will be notified automatically of any progress on your issue.

Source Code

This is open source software. The code repository is available for public review and contribution under the terms of the license.

https://github.com/vovkasm/perl-Panda-NSS

git clone https://github.com/vovkasm/perl-Panda-NSS.git

AUTHOR

Vladimir Timofeev <vovkasm@gmail.com>

COPYRIGHT AND LICENSE