From a520be22aa3aa6a61676a09c8e9a5a75d65ae4c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Wed, 29 Jun 2011 15:36:15 +0200
Subject: [PATCH] (bench_ctr): New function. (time_cipher): Also benchmark CTR
mode.
Rev: nettle/examples/nettle-benchmark.c:1.21
---
examples/nettle-benchmark.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/examples/nettle-benchmark.c b/examples/nettle-benchmark.c
index 7004d8b8..630fa414 100644
--- a/examples/nettle-benchmark.c
+++ b/examples/nettle-benchmark.c
@@ -43,6 +43,7 @@
#include "blowfish.h"
#include "cast128.h"
#include "cbc.h"
+#include "ctr.h"
#include "des.h"
#include "gcm.h"
#include "memxor.h"
@@ -269,6 +270,15 @@ bench_cbc_decrypt(void *arg)
BENCH_BLOCK, info->data, info->data);
}
+static void
+bench_ctr(void *arg)
+{
+ struct bench_cbc_info *info = arg;
+ ctr_crypt(info->ctx, info->crypt,
+ info->block_size, info->iv,
+ BENCH_BLOCK, info->data, info->data);
+}
+
/* Set data[i] = floor(sqrt(i)) */
static void
init_data(uint8_t *data)
@@ -499,6 +509,24 @@ time_cipher(const struct nettle_cipher *cipher)
display(cipher->name, "CBC decrypt", cipher->block_size,
time_function(bench_cbc_decrypt, &info));
}
+
+ /* Do CTR mode */
+ {
+ struct bench_cbc_info info;
+ info.ctx = ctx;
+ info.crypt = cipher->encrypt;
+ info.data = data;
+ info.block_size = cipher->block_size;
+ info.iv = iv;
+
+ memset(iv, 0, sizeof(iv));
+
+ cipher->set_encrypt_key(ctx, cipher->key_size, key);
+
+ display(cipher->name, "CTR", cipher->block_size,
+ time_function(bench_ctr, &info));
+ }
+
free(iv);
}
free(ctx);
--
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