Crypt::OpenSSL::PKCS10 - Perl extension to OpenSSL's PKCS10 API.

use Crypt::OpenSSL::PKCS10 qw( :const );

my $req = Crypt::OpenSSL::PKCS10->new;
$req->set_subject("/C=RO/O=UTI/OU=ssi");
$req->add_ext(Crypt::OpenSSL::PKCS10::NID_key_usage,"critical,digitalSignature,keyEncipherment");
$req->add_ext(Crypt::OpenSSL::PKCS10::NID_ext_key_usage,"serverAuth, nsSGC, msSGC, 1.3.4");
$req->add_ext(Crypt::OpenSSL::PKCS10::NID_subject_alt_name,"email:steve@openssl.org");
$req->add_custom_ext('1.2.3.3',"My new extension");
$req->add_ext_final();
$req->sign();
$req->write_pem_req('request.pem');
$req->write_pem_pk('pk.pem');
print $req->get_pem_pubkey();
print $req->pubkey_type();
print $req->get_pem_req();

Crypt::OpenSSL::PKCS10 - Perl extension to OpenSSL's PKCS10 API.

Crypt::OpenSSL::PKCS10 provides the ability to create PKCS10 certificate requests using RSA key pairs.

• new

  Create a new Crypt::OpenSSL::PKCS10 object by generating a new RSA key pair. There is one optional argument, the key size, which has the default value of 1024 if omitted.

• new_from_rsa( $rsa_object )

  Create a new Crypt::OpenSSL::PKCS10 object by using key information from a Crypt::OpenSSL::RSA object. Here is an example:

  my $rsa = Crypt::OpenSSL::RSA->generate_key(512);
  my $req = Crypt::OpenSSL::PKCS10->new_from_rsa($rsa);

  OpenSSL 3.0 has deprecated the RSA object which Crypt::OpenSSL::RSA creates. new_from_rsa() is now a perl sub which obtains the private key as a string that is also passed to the _new_from_rsa() XS function.

• new_from_file( $filename )

  Create a new Crypt::OpenSSL::PKCS10 object by reading the request and key information from a PEM formatted file. Here is an example:

  my $req = Crypt::OpenSSL::PKCS10->new_from_file("CSR.csr");

• set_subject($subject, [ $utf8 ])

  Sets the subject DN of the request. Note: $subject is expected to be in the format /type0=value0/type1=value1/type2=... where characters may be escaped by \. If $utf8 is non-zero integer, $subject is interpreted as UTF-8 string.

• add_ext($nid, $extension)

  Adds a new extension to the request. The first argument $nid is one of the exported constants (see below). The second one $extension is a string (for more info read openssl(3)).

  $req->add_ext(Crypt::OpenSSL::PKCS10::NID_key_usage,"critical,digitalSignature,keyEncipherment");
  $req->add_ext(Crypt::OpenSSL::PKCS10::NID_ext_key_usage,"serverAuth, nsSGC, msSGC, 1.3.4");
  $req->add_ext(Crypt::OpenSSL::PKCS10::NID_subject_alt_name,"email:steve@openssl.org");

• add_custom_ext($oid, $desc)

  Adds a new custom extension to the request. The value is added as a text string, using ASN.1 encoding rules inherited from the Netscape Comment OID.

  $req->add_custom_ext('1.2.3.3',"My new extension");
  

• add_custom_ext_raw($oid, $bytes)

  Adds a new custom extension to the request. The value is added as a raw DER octet string. Use this if you are packing your own ASN.1 structures and need to set the extension value directly.

  $req->add_custom_ext_raw($oid, pack('H*','1E06006100620063')) # BMPString 'abc'
  

• add_ext_final()

  This must be called after all extensions has been added. It actually copies the extension stack to request structure.

  $req->add_ext(Crypt::OpenSSL::PKCS10::NID_subject_alt_name,"email:my@email.org");
  $req->add_ext_final();

• sign()

  This adds the signature to the PKCS10 request.

  $req->sign();
  

• pubkey_type()

  Returns the type of the PKCS10 public key - one of (rsa|dsa|ec).

  $req->pubkey_type();
  

• get_pubkey()

  Returns the PEM encoding of the PKCS10 public key.

  $req->get_pubkey();
  

• get_pem_req()

  Returns the PEM encoding of the PKCS10 request.

  $req->get_pem_req();
  

• write_pem_req($filename)

  Writes the PEM encoding of the PKCS10 request to a given file.

  $req->write_pem_req('request.pem');
  

• get_pem_pk()

  Returns the PEM encoding of the private key.

  $req->get_pem_pk();
  

• write_pem_pk($filename)

  Writes the PEM encoding of the private key to a given file.

  $req->write_pem_pk('request.pem');
  

• subject()

  returns the subject of the PKCS10 request

  $subject = $req->subject();

• keyinfo()

  returns the human readable info about the key of the PKCS10 request

  $keyinfo = $req->keyinfo();
  

None by default.

On request:

    NID_key_usage NID_subject_alt_name NID_netscape_cert_type NID_netscape_comment
    NID_ext_key_usage

If you destroy $req object that is linked to a Crypt::OpenSSL::RSA object, the RSA private key is also freed, thus you can't use latter object anymore. Avoid this:

my $rsa = Crypt::OpenSSL::RSA->generate_key(512);
my $req = Crypt::OpenSSL::PKCS10->new_from_rsa($rsa);
undef $req;
print $rsa->get_private_key_string();

Crypt::OpenSSL::RSA, Crypt::OpenSSL::X509.

JoNO, jonozzz@yahoo.com

Copyright (C) 2006 by JoNO

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.2 or, at your option, any later version of Perl 5 you may have available.