1 files changed, 96 insertions, 0 deletions

diff --git a/src/lib/util/perf_crypto_paillier.c b/src/lib/util/perf_crypto_paillier.c
new file mode 100644
index 000000000..53c717a66
--- /dev/null
+++ b/src/lib/util/perf_crypto_paillier.c
@@ -0,0 +1,96 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2014 GNUnet e.V.
+
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     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
+     Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+
+/**
+ * @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 */