More pubkey doc updates

1 files changed, 76 insertions, 0 deletions

diff --git a/doc/examples/ca.cpp b/doc/examples/ca.cpp
new file mode 100644
index 000000000..8dd3e981f
--- /dev/null
+++ b/doc/examples/ca.cpp
@@ -0,0 +1,76 @@
+/*
+* (C) 2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+/*
+  Implement the functionality of a simple CA: read in a CA certificate,
+  the associated private key, and a PKCS #10 certificate request. Sign the
+  request and print out the new certificate.
+
+  File names are hardcoded for simplicity.
+    cacert.pem:    The CA's certificate (perhaps created by self_sig)
+    caprivate.pem: The CA's private key
+    req.pem:       The user's PKCS #10 certificate request
+*/
+
+#include <botan/botan.h>
+#include <botan/x509_ca.h>
+#include <botan/time.h>
+using namespace Botan;
+
+#include <iostream>
+#include <memory>
+
+int main(int argc, char* argv[])
+   {
+   if(argc != 5)
+      {
+      std::cout << "Usage: " << argv[0] << " <passphrase> "
+                << "<ca cert> <ca key> <pkcs10>" << std::endl;
+      return 1;
+      }
+
+   Botan::LibraryInitializer init;
+
+   try
+      {
+      const std::string arg_passphrase = argv[1];
+      const std::string arg_ca_cert = argv[2];
+      const std::string arg_ca_key = argv[3];
+      const std::string arg_req_file = argv[4];
+
+      AutoSeeded_RNG rng;
+
+      X509_Certificate ca_cert(arg_ca_cert);
+
+      std::auto_ptr<PKCS8_PrivateKey> privkey(
+         PKCS8::load_key(arg_ca_key, rng, arg_passphrase)
+         );
+
+      X509_CA ca(ca_cert, *privkey, "SHA-256");
+
+      // got a request
+      PKCS10_Request req(arg_req_file);
+
+      // you would insert checks here, and perhaps modify the request
+      // (this example should be extended to show how)
+
+      // now sign the request
+      X509_Time start_time(system_time());
+      X509_Time end_time(system_time() + 365 * 60 * 60 * 24);
+
+      X509_Certificate new_cert = ca.sign_request(req, rng,
+                                                  start_time, end_time);
+
+      // send the new cert back to the requestor
+      std::cout << new_cert.PEM_encode();
+   }
+   catch(std::exception& e)
+      {
+      std::cout << e.what() << std::endl;
+      return 1;
+      }
+   return 0;
+   }