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diff --git a/old/botan/doc/examples/pkcs10.cpp b/old/botan/doc/examples/pkcs10.cpp
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+++ b/old/botan/doc/examples/pkcs10.cpp
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+/*
+Generate a 1024 bit RSA key, and then create a PKCS #10 certificate request for
+that key. The private key will be stored as an encrypted PKCS #8 object, and
+stored in another file.
+
+Written by Jack Lloyd (lloyd@randombit.net), April 7, 2003
+
+This file is in the public domain
+*/
+#include <botan/init.h>
+#include <botan/auto_rng.h>
+#include <botan/x509self.h>
+#include <botan/rsa.h>
+#include <botan/dsa.h>
+using namespace Botan;
+
+#include <iostream>
+#include <fstream>
+#include <memory>
+
+int main(int argc, char* argv[])
+   {
+   if(argc != 6)
+      {
+      std::cout << "Usage: " << argv[0] <<
+         " passphrase name country_code organization email" << std::endl;
+      return 1;
+      }
+
+   Botan::LibraryInitializer init;
+
+   try
+      {
+      AutoSeeded_RNG rng;
+
+      RSA_PrivateKey priv_key(rng, 1024);
+      // If you want a DSA key instead of RSA, comment out the above line and
+      // uncomment this one:
+      //DSA_PrivateKey priv_key(DL_Group("dsa/jce/1024"));
+
+      std::ofstream key_file("private.pem");
+      key_file << PKCS8::PEM_encode(priv_key, rng, argv[1]);
+
+      X509_Cert_Options opts;
+
+      opts.common_name = argv[2];
+      opts.country = argv[3];
+      opts.organization = argv[4];
+      opts.email = argv[5];
+
+      /* Some hard-coded options, just to give you an idea of what's there */
+      opts.challenge = "a fixed challenge passphrase";
+      opts.locality = "Baltimore";
+      opts.state = "MD";
+      opts.org_unit = "Testing";
+      opts.add_ex_constraint("PKIX.ClientAuth");
+      opts.add_ex_constraint("PKIX.IPsecUser");
+      opts.add_ex_constraint("PKIX.EmailProtection");
+
+      opts.xmpp = "someid@xmpp.org";
+
+      PKCS10_Request req = X509::create_cert_req(opts, priv_key, rng);
+
+      std::ofstream req_file("req.pem");
+      req_file << req.PEM_encode();
+   }
+   catch(std::exception& e)
+      {
+      std::cout << e.what() << std::endl;
+      return 1;
+      }
+   return 0;
+   }