Esempio n. 1
0
/*
* Create a PKCS #10 certificate request
*/
PKCS10_Request create_cert_req(const X509_Cert_Options& opts,
                               const Private_Key& key,
                               const std::string& hash_fn,
                               RandomNumberGenerator& rng)
   {
   X509_DN subject_dn;
   AlternativeName subject_alt;
   load_info(opts, subject_dn, subject_alt);

   Key_Constraints constraints;
   if(opts.is_CA)
      {
      constraints = Key_Constraints(KEY_CERT_SIGN | CRL_SIGN);
      }
   else
      {
      verify_cert_constraints_valid_for_key_type(key, opts.constraints);
      constraints = opts.constraints;
      }

   Extensions extensions = opts.extensions;

   extensions.add_new(new Cert_Extension::Basic_Constraints(opts.is_CA, opts.path_limit));

   if(constraints != NO_CONSTRAINTS)
      {
      extensions.add_new(new Cert_Extension::Key_Usage(constraints));
      }
   extensions.add_new(new Cert_Extension::Extended_Key_Usage(opts.ex_constraints));
   extensions.add_new(new Cert_Extension::Subject_Alternative_Name(subject_alt));

   return PKCS10_Request::create(key,
                                 subject_dn,
                                 extensions,
                                 hash_fn,
                                 rng,
                                 opts.padding_scheme,
                                 opts.challenge);
   }
Esempio n. 2
0
/*
* Create a new self-signed X.509 certificate
*/
X509_Certificate create_self_signed_cert(const X509_Cert_Options& opts,
                                         const Private_Key& key,
                                         const std::string& hash_fn,
                                         RandomNumberGenerator& rng)
   {
   AlgorithmIdentifier sig_algo;
   X509_DN subject_dn;
   AlternativeName subject_alt;

   // for now, only the padding option is used
   std::map<std::string,std::string> sig_opts = { {"padding",opts.padding_scheme} };

   const std::vector<uint8_t> pub_key = X509::BER_encode(key);
   std::unique_ptr<PK_Signer> signer(choose_sig_format(key, sig_opts, rng, hash_fn, sig_algo));
   load_info(opts, subject_dn, subject_alt);

   Extensions extensions = opts.extensions;

   Key_Constraints constraints;
   if(opts.is_CA)
      {
      constraints = Key_Constraints(KEY_CERT_SIGN | CRL_SIGN);
      }
   else
      {
      verify_cert_constraints_valid_for_key_type(key, opts.constraints);
      constraints = opts.constraints;
      }

   extensions.add_new(
      new Cert_Extension::Basic_Constraints(opts.is_CA, opts.path_limit),
      true);

   if(constraints != NO_CONSTRAINTS)
      {
      extensions.add_new(new Cert_Extension::Key_Usage(constraints), true);
      }

   std::unique_ptr<Cert_Extension::Subject_Key_ID> skid(new Cert_Extension::Subject_Key_ID(pub_key, hash_fn));

   extensions.add_new(new Cert_Extension::Authority_Key_ID(skid->get_key_id()));
   extensions.add_new(skid.release());

   extensions.add_new(
      new Cert_Extension::Subject_Alternative_Name(subject_alt));

   extensions.add_new(
      new Cert_Extension::Extended_Key_Usage(opts.ex_constraints));

   return X509_CA::make_cert(signer.get(), rng, sig_algo, pub_key,
                             opts.start, opts.end,
                             subject_dn, subject_dn,
                             extensions);
   }