From 2de6e2211c31d2911c7d1dc6d445a41fd9ae3429 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 9 Jan 2014 13:58:37 +0000
Subject: adding benchmark logic for HKDF

---
 src/util/crypto_kdf.c       |  1 +
 src/util/perf_crypto_hash.c | 30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

(limited to 'src')

diff --git a/src/util/crypto_kdf.c b/src/util/crypto_kdf.c
index 9424c2350..17d95b2e0 100644
--- a/src/util/crypto_kdf.c
+++ b/src/util/crypto_kdf.c
@@ -63,6 +63,7 @@ GNUNET_CRYPTO_kdf_v (void *result, size_t out_len, const void *xts,
                                xts, xts_len, skm, skm_len, argp);
 }
 
+
 /**
  * @brief Derive key
  * @param result buffer for the derived key, allocated by caller
diff --git a/src/util/perf_crypto_hash.c b/src/util/perf_crypto_hash.c
index 5261c711b..6a63b543f 100644
--- a/src/util/perf_crypto_hash.c
+++ b/src/util/perf_crypto_hash.c
@@ -26,6 +26,7 @@
 #include "platform.h"
 #include "gnunet_util_lib.h"
 #include <gauger.h>
+#include <gcrypt.h>
 
 
 static void
@@ -41,6 +42,26 @@ perfHash ()
 }
 
 
+static void
+perfHKDF ()
+{
+  unsigned int i;
+  char res[128];
+  char buf[128];
+  char skm[64];
+
+  memset (buf, 1, sizeof (buf));
+  memset (skm, 2, sizeof (skm));
+  for (i = 0; i < 1024; i++)
+    GNUNET_CRYPTO_hkdf (res, sizeof (res),
+                        GCRY_MD_SHA512, GCRY_MD_SHA256,
+                        buf, sizeof (buf),
+                        skm, sizeof (skm),
+                        "test", (size_t) 4,
+                        NULL, 0);
+}
+
+
 int
 main (int argc, char *argv[])
 {
@@ -55,6 +76,15 @@ main (int argc, char *argv[])
           64 * 1024 / (1 +
 		       GNUNET_TIME_absolute_get_duration
 		       (start).rel_value_us / 1000LL), "kb/ms");
+  start = GNUNET_TIME_absolute_get ();
+  perfHKDF ();
+  printf ("HKDF perf took %s\n",
+          GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration (start),
+						  GNUNET_YES));
+  GAUGER ("UTIL", "Cryptographic HKDF",
+          64 * 1024 / (1 +
+		       GNUNET_TIME_absolute_get_duration
+		       (start).rel_value_us / 1000LL), "kb/ms");
   return 0;
 }
 
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