1 files changed, 128 insertions, 0 deletions
diff --git a/src/util/gnunet-rsa.c b/src/util/gnunet-rsa.c
new file mode 100644
index 0000000..f3cd83a
--- /dev/null
+++ b/src/util/gnunet-rsa.c
@@ -0,0 +1,128 @@
+/*
+     This file is part of GNUnet.
+     (C) 2012 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file util/gnunet-rsa.c
+ * @brief tool to manipulate RSA key files
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+
+
+/**
+ * Flag for printing public key.
+ */
+static int print_public_key;
+
+/**
+ * Flag for printing hash of public key.
+ */
+static int print_peer_identity;
+
+/**
+ * Flag for printing short hash of public key.
+ */
+static int print_short_identity;
+
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param cfg configuration
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct GNUNET_CRYPTO_RsaPrivateKey *pk;
+  struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
+  struct GNUNET_PeerIdentity pid;
+
+  if (NULL == args[0])
+  {
+    fprintf (stderr, _("No hostkey file specified on command line\n"));
+    return;
+  }
+  pk = GNUNET_CRYPTO_rsa_key_create_from_file (args[0]);
+  if (print_public_key)
+  {
+    char *s;
+
+    GNUNET_CRYPTO_rsa_key_get_public (pk, &pub);
+    s = GNUNET_CRYPTO_rsa_public_key_to_string (&pub);
+    fprintf (stdout, "%s\n", s);
+    GNUNET_free (s);
+  }
+  if (print_peer_identity)
+  {
+    struct GNUNET_CRYPTO_HashAsciiEncoded enc;
+
+    GNUNET_CRYPTO_rsa_key_get_public (pk, &pub);
+    GNUNET_CRYPTO_hash (&pub, sizeof (pub), &pid.hashPubKey);
+    GNUNET_CRYPTO_hash_to_enc (&pid.hashPubKey, &enc);
+    fprintf (stdout, "%s\n", enc.encoding);
+  }
+  if (print_short_identity)
+  {
+    struct GNUNET_CRYPTO_ShortHashAsciiEncoded enc;
+    struct GNUNET_CRYPTO_ShortHashCode sh;
+
+    GNUNET_CRYPTO_rsa_key_get_public (pk, &pub);
+    GNUNET_CRYPTO_short_hash (&pub, sizeof (pub), &sh);
+    GNUNET_CRYPTO_short_hash_to_enc (&sh, &enc);
+    fprintf (stdout, "%s\n", enc.short_encoding);
+  }
+  GNUNET_CRYPTO_rsa_key_free (pk);
+}
+
+
+/**
+ * The main function to obtain statistics in GNUnet.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc, char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    { 'p', "print-public-key", NULL,
+      gettext_noop ("print the public key in ASCII format"),
+      0, &GNUNET_GETOPT_set_one, &print_public_key },
+    { 'P', "print-peer-identity", NULL,
+      gettext_noop ("print the hash of the public key in ASCII format"),
+      0, &GNUNET_GETOPT_set_one, &print_peer_identity },
+    { 's', "print-short-identity", NULL,
+      gettext_noop ("print the short hash of the public key in ASCII format"),
+      0, &GNUNET_GETOPT_set_one, &print_short_identity },
+    GNUNET_GETOPT_OPTION_END
+  };
+  return (GNUNET_OK ==
+          GNUNET_PROGRAM_run (argc, argv, "gnunet-rsa [OPTIONS] keyfile",
+                              gettext_noop ("Manipulate GNUnet private RSA key files"),
+                              options, &run, NULL)) ? 0 : 1;
+}
+
+/* end of gnunet-rsa.c */