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[CRYPTO]: Add cipher speed tests
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From: Reyk Floeter <[email protected]>

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 <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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@laf0rge @davem330
laf0rge authored and davem330 committed Jun 22, 2005
1 parent 3cc3816 commit ebfd9bc
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Showing 2 changed files with 222 additions and 4 deletions.
134 changes: 131 additions & 3 deletions crypto/tcrypt.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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 <[email protected]>)
* 2003-09-14 Rewritten by Kartikey Mahendra Bhatt
*
*/

#include <linux/init.h>
Expand All @@ -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

/*
Expand All @@ -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;
Expand Down Expand Up @@ -419,6 +426,90 @@ static void test_cipher(char *algo, int mode, int enc,
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;
Expand Down Expand Up @@ -861,6 +952,41 @@ static void do_test(void)

#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;
Expand Down Expand Up @@ -901,6 +1027,8 @@ module_init(init);
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");
Expand Down
92 changes: 91 additions & 1 deletion crypto/tcrypt.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,8 @@
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* 14 - 09 - 2003 Changes by Kartikey Mahendra Bhatt
* 2004-08-09 Cipher speed tests by Reyk Floeter <[email protected]>
* 2003-09-14 Changes by Kartikey Mahendra Bhatt
*
*/
#ifndef _CRYPTO_TCRYPT_H
Expand Down Expand Up @@ -58,6 +59,11 @@ struct cipher_testvec {
unsigned char tap[MAX_TAP];
};

struct cipher_speed {
unsigned char klen;
unsigned int blen;
};

/*
* MD4 test vectors from RFC1320
*/
Expand Down Expand Up @@ -2728,4 +2734,88 @@ static struct hash_testvec michael_mic_tv_template[] = {
}
};

/*
* Cipher speed tests
*/
static struct cipher_speed aes_speed_template[] = {
{ .klen = 16, .blen = 16, },
{ .klen = 16, .blen = 64, },
{ .klen = 16, .blen = 256, },
{ .klen = 16, .blen = 1024, },
{ .klen = 16, .blen = 8192, },
{ .klen = 24, .blen = 16, },
{ .klen = 24, .blen = 64, },
{ .klen = 24, .blen = 256, },
{ .klen = 24, .blen = 1024, },
{ .klen = 24, .blen = 8192, },
{ .klen = 32, .blen = 16, },
{ .klen = 32, .blen = 64, },
{ .klen = 32, .blen = 256, },
{ .klen = 32, .blen = 1024, },
{ .klen = 32, .blen = 8192, },

/* End marker */
{ .klen = 0, .blen = 0, }
};

static struct cipher_speed des3_ede_speed_template[] = {
{ .klen = 24, .blen = 16, },
{ .klen = 24, .blen = 64, },
{ .klen = 24, .blen = 256, },
{ .klen = 24, .blen = 1024, },
{ .klen = 24, .blen = 8192, },

/* End marker */
{ .klen = 0, .blen = 0, }
};

static struct cipher_speed twofish_speed_template[] = {
{ .klen = 16, .blen = 16, },
{ .klen = 16, .blen = 64, },
{ .klen = 16, .blen = 256, },
{ .klen = 16, .blen = 1024, },
{ .klen = 16, .blen = 8192, },
{ .klen = 24, .blen = 16, },
{ .klen = 24, .blen = 64, },
{ .klen = 24, .blen = 256, },
{ .klen = 24, .blen = 1024, },
{ .klen = 24, .blen = 8192, },
{ .klen = 32, .blen = 16, },
{ .klen = 32, .blen = 64, },
{ .klen = 32, .blen = 256, },
{ .klen = 32, .blen = 1024, },
{ .klen = 32, .blen = 8192, },

/* End marker */
{ .klen = 0, .blen = 0, }
};

static struct cipher_speed blowfish_speed_template[] = {
/* Don't support blowfish keys > 256 bit in this test */
{ .klen = 8, .blen = 16, },
{ .klen = 8, .blen = 64, },
{ .klen = 8, .blen = 256, },
{ .klen = 8, .blen = 1024, },
{ .klen = 8, .blen = 8192, },
{ .klen = 32, .blen = 16, },
{ .klen = 32, .blen = 64, },
{ .klen = 32, .blen = 256, },
{ .klen = 32, .blen = 1024, },
{ .klen = 32, .blen = 8192, },

/* End marker */
{ .klen = 0, .blen = 0, }
};

static struct cipher_speed des_speed_template[] = {
{ .klen = 8, .blen = 16, },
{ .klen = 8, .blen = 64, },
{ .klen = 8, .blen = 256, },
{ .klen = 8, .blen = 1024, },
{ .klen = 8, .blen = 8192, },

/* End marker */
{ .klen = 0, .blen = 0, }
};

#endif /* _CRYPTO_TCRYPT_H */

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