[CRYPTO]: Add cipher speed tests
From: Reyk Floeter <reyk@vantronix.net>
I recently had the requirement to do some benchmarking on cryptoapi, and
I found reyk's very useful performance test patch [1].
However, I could not find any discussion on why that extension (or
something providing a similar feature but different implementation) was
not merged into mainline. If there was such a discussion, can someone
please point me to the archive[s]?
I've now merged the old patch into 2.6.12-rc1, the result can be found
attached to this email.
[1] http://lists.logix.cz/pipermail/padlock/2004/000010.html
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 85a88a7..414ef5e 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -12,8 +12,9 @@
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
- * 14 - 09 - 2003
- * Rewritten by Kartikey Mahendra Bhatt
+ * 2004-08-09 Added cipher speed tests (Reyk Floeter <reyk@vantronix.net>)
+ * 2003-09-14 Rewritten by Kartikey Mahendra Bhatt
+ *
*/
#include <linux/init.h>
@@ -25,12 +26,13 @@
#include <linux/crypto.h>
#include <linux/highmem.h>
#include <linux/moduleparam.h>
+#include <linux/jiffies.h>
#include "tcrypt.h"
/*
* Need to kmalloc() memory for testing kmap().
*/
-#define TVMEMSIZE 4096
+#define TVMEMSIZE 16384
#define XBUFSIZE 32768
/*
@@ -55,6 +57,11 @@
static unsigned int IDX[8] = { IDX1, IDX2, IDX3, IDX4, IDX5, IDX6, IDX7, IDX8 };
+/*
+ * Used by test_cipher_speed()
+ */
+static unsigned int sec = 10;
+
static int mode;
static char *xbuf;
static char *tvmem;
@@ -419,6 +426,90 @@
crypto_free_tfm(tfm);
}
+static void test_cipher_speed(char *algo, int mode, int enc, unsigned int sec,
+ struct cipher_speed *speed)
+{
+ unsigned int ret, i, iv_len;
+ unsigned char *key, *p, iv[128];
+ struct crypto_tfm *tfm;
+ struct scatterlist sg[8];
+ unsigned long start, bcount;
+ const char *e, *m;
+
+ if (enc == ENCRYPT)
+ e = "encryption";
+ else
+ e = "decryption";
+ if (mode == MODE_ECB)
+ m = "ECB";
+ else
+ m = "CBC";
+
+ printk("\ntesting speed of %s %s %s\n", algo, m, e);
+
+ if (mode)
+ tfm = crypto_alloc_tfm(algo, 0);
+ else
+ tfm = crypto_alloc_tfm(algo, CRYPTO_TFM_MODE_CBC);
+
+ if (tfm == NULL) {
+ printk("failed to load transform for %s %s\n", algo, m);
+ return;
+ }
+
+ for (i = 0; speed[i].klen != 0; i++) {
+ if ((speed[i].blen + speed[i].klen) > TVMEMSIZE) {
+ printk("template (%u) too big for tvmem (%u)\n",
+ speed[i].blen + speed[i].klen, TVMEMSIZE);
+ goto out;
+ }
+
+ printk("test %u (%d bit key, %d byte blocks): ", i,
+ speed[i].klen * 8, speed[i].blen);
+
+ memset(tvmem, 0xff, speed[i].klen + speed[i].blen);
+
+ /* set key, plain text and IV */
+ key = (unsigned char *)tvmem;
+ p = (unsigned char *)tvmem + speed[i].klen;
+
+ ret = crypto_cipher_setkey(tfm, key, speed[i].klen);
+ if (ret) {
+ printk("setkey() failed flags=%x\n", tfm->crt_flags);
+ goto out;
+ }
+
+ if (!mode) {
+ iv_len = crypto_tfm_alg_ivsize(tfm);
+ memset(&iv, 0xff, iv_len);
+ crypto_cipher_set_iv(tfm, iv, iv_len);
+ }
+
+ for (start = jiffies, bcount = 0;
+ ((jiffies - start) / HZ) < sec; bcount++) {
+ sg[0].page = virt_to_page(p);
+ sg[0].offset = offset_in_page(p);
+ sg[0].length = speed[i].blen;
+
+ if (enc)
+ ret = crypto_cipher_encrypt(tfm, sg, sg, speed[i].blen);
+ else
+ ret = crypto_cipher_decrypt(tfm, sg, sg, speed[i].blen);
+
+ if (ret) {
+ printk("%s () failed flags=%x\n", e, tfm->crt_flags);
+ goto out;
+ }
+ }
+
+ printk("%lu operations in %u seconds (%lu bytes)\n",
+ bcount, sec, bcount * speed[i].blen);
+ }
+
+out:
+ crypto_free_tfm(tfm);
+}
+
static void test_deflate(void)
{
unsigned int i;
@@ -861,6 +952,41 @@
#endif
+ case 200:
+ test_cipher_speed("aes", MODE_ECB, ENCRYPT, sec, aes_speed_template);
+ test_cipher_speed("aes", MODE_ECB, DECRYPT, sec, aes_speed_template);
+ test_cipher_speed("aes", MODE_CBC, ENCRYPT, sec, aes_speed_template);
+ test_cipher_speed("aes", MODE_CBC, DECRYPT, sec, aes_speed_template);
+ break;
+
+ case 201:
+ test_cipher_speed("des3_ede", MODE_ECB, ENCRYPT, sec, des3_ede_speed_template);
+ test_cipher_speed("des3_ede", MODE_ECB, DECRYPT, sec, des3_ede_speed_template);
+ test_cipher_speed("des3_ede", MODE_CBC, ENCRYPT, sec, des3_ede_speed_template);
+ test_cipher_speed("des3_ede", MODE_CBC, DECRYPT, sec, des3_ede_speed_template);
+ break;
+
+ case 202:
+ test_cipher_speed("twofish", MODE_ECB, ENCRYPT, sec, twofish_speed_template);
+ test_cipher_speed("twofish", MODE_ECB, DECRYPT, sec, twofish_speed_template);
+ test_cipher_speed("twofish", MODE_CBC, ENCRYPT, sec, twofish_speed_template);
+ test_cipher_speed("twofish", MODE_CBC, DECRYPT, sec, twofish_speed_template);
+ break;
+
+ case 203:
+ test_cipher_speed("blowfish", MODE_ECB, ENCRYPT, sec, blowfish_speed_template);
+ test_cipher_speed("blowfish", MODE_ECB, DECRYPT, sec, blowfish_speed_template);
+ test_cipher_speed("blowfish", MODE_CBC, ENCRYPT, sec, blowfish_speed_template);
+ test_cipher_speed("blowfish", MODE_CBC, DECRYPT, sec, blowfish_speed_template);
+ break;
+
+ case 204:
+ test_cipher_speed("des", MODE_ECB, ENCRYPT, sec, des_speed_template);
+ test_cipher_speed("des", MODE_ECB, DECRYPT, sec, des_speed_template);
+ test_cipher_speed("des", MODE_CBC, ENCRYPT, sec, des_speed_template);
+ test_cipher_speed("des", MODE_CBC, DECRYPT, sec, des_speed_template);
+ break;
+
case 1000:
test_available();
break;
@@ -901,6 +1027,8 @@
module_exit(fini);
module_param(mode, int, 0);
+module_param(sec, uint, 0);
+MODULE_PARM_DESC(sec, "Length in seconds of speed tests");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Quick & dirty crypto testing module");