[GNUnet-SVN] r34516 - gnunet/src/util

[gnunet]

Author: grothoff
Date: 2014-12-09 22:05:51 +0100 (Tue, 09 Dec 2014)
New Revision: 34516

Added:
   gnunet/src/util/perf_crypto_paillier.c
Log:
add paillier benchmark

Added: gnunet/src/util/perf_crypto_paillier.c
===================================================================
--- gnunet/src/util/perf_crypto_paillier.c                              (rev 0)
+++ gnunet/src/util/perf_crypto_paillier.c      2014-12-09 21:05:51 UTC (rev 
34516)
@@ -0,0 +1,91 @@
+/*
+     This file is part of GNUnet.
+     (C) 2014 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.
+*/
+
+/**
+ * @author Christian Grothoff
+ * @file util/perf_crypto_paillier.c
+ * @brief measure performance of Paillier encryption
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include <gauger.h>
+
+
+int
+main (int argc, char *argv[])
+{
+  struct GNUNET_TIME_Absolute start;
+  struct GNUNET_CRYPTO_PaillierPublicKey public_key;
+  struct GNUNET_CRYPTO_PaillierPrivateKey private_key;
+  struct GNUNET_CRYPTO_PaillierCiphertext c1;
+  gcry_mpi_t m1;
+  unsigned int i;
+
+  start = GNUNET_TIME_absolute_get ();
+  for (i=0;i<10;i++)
+    GNUNET_CRYPTO_paillier_create (&public_key,
+                                   &private_key);
+  printf ("10x key generation took %s\n",
+          GNUNET_STRINGS_relative_time_to_string 
(GNUNET_TIME_absolute_get_duration (start),
+                                                 GNUNET_YES));
+  GAUGER ("UTIL", "Paillier key generation",
+          64 * 1024 / (1 +
+                      GNUNET_TIME_absolute_get_duration
+                      (start).rel_value_us / 1000LL), "keys/ms");
+
+  m1 = gcry_mpi_new (0);
+  m1 = gcry_mpi_set_ui (m1, 1);
+  /* m1 = m1 * 2 ^ (GCPB - 3) */
+  gcry_mpi_mul_2exp (m1,
+                     m1,
+                     GNUNET_CRYPTO_PAILLIER_BITS - 3);
+  start = GNUNET_TIME_absolute_get ();
+  for (i=0;i<10;i++)
+    GNUNET_CRYPTO_paillier_encrypt (&public_key,
+                                    m1,
+                                    2,
+                                    &c1);
+  printf ("10x encryption took %s\n",
+          GNUNET_STRINGS_relative_time_to_string 
(GNUNET_TIME_absolute_get_duration (start),
+                                                 GNUNET_YES));
+  GAUGER ("UTIL", "Paillier encryption",
+          64 * 1024 / (1 +
+                      GNUNET_TIME_absolute_get_duration
+                      (start).rel_value_us / 1000LL), "ops/ms");
+
+  start = GNUNET_TIME_absolute_get ();
+  for (i=0;i<10;i++)
+    GNUNET_CRYPTO_paillier_decrypt (&private_key,
+                                    &public_key,
+                                    &c1,
+                                    m1);
+  printf ("10x decryption took %s\n",
+          GNUNET_STRINGS_relative_time_to_string 
(GNUNET_TIME_absolute_get_duration (start),
+                                                 GNUNET_YES));
+  GAUGER ("UTIL", "Paillier decryption",
+          64 * 1024 / (1 +
+                      GNUNET_TIME_absolute_get_duration
+                      (start).rel_value_us / 1000LL), "ops/ms");
+
+
+  return 0;
+}
+
+/* end of perf_crypto_paillier.c */