From db896db5a75f30ed5b46c89ba1d4272cbc145d6b Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Mon, 14 Nov 2011 21:09:30 +0000
Subject: [PATCH] speed.c: add ghash benchmark [from HEAD].

---
 apps/speed.c | 28 +++++++++++++++++++++++++---
 1 file changed, 25 insertions(+), 3 deletions(-)

diff --git a/apps/speed.c b/apps/speed.c
index e4e84a5200..b397c85095 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -183,6 +183,7 @@
 #ifndef OPENSSL_NO_ECDH
 #include <openssl/ecdh.h>
 #endif
+#include <openssl/modes.h>
 
 #ifdef OPENSSL_FIPS
 #define BF_set_key	private_BF_set_key
@@ -227,7 +228,7 @@ static void print_result(int alg,int run_no,int count,double time_used);
 static int do_multi(int multi);
 #endif
 
-#define ALGOR_NUM	29
+#define ALGOR_NUM	30
 #define SIZE_NUM	5
 #define RSA_NUM		4
 #define DSA_NUM		3
@@ -242,7 +243,7 @@ static const char *names[ALGOR_NUM]={
   "aes-128 cbc","aes-192 cbc","aes-256 cbc",
   "camellia-128 cbc","camellia-192 cbc","camellia-256 cbc",
   "evp","sha256","sha512","whirlpool",
-  "aes-128 ige","aes-192 ige","aes-256 ige"};
+  "aes-128 ige","aes-192 ige","aes-256 ige","ghash"};
 static double results[ALGOR_NUM][SIZE_NUM];
 static int lengths[SIZE_NUM]={16,64,256,1024,8*1024};
 #ifndef OPENSSL_NO_RSA
@@ -482,6 +483,7 @@ int MAIN(int argc, char **argv)
 #define D_IGE_128_AES   26
 #define D_IGE_192_AES   27
 #define D_IGE_256_AES   28
+#define D_GHASH		29
 	double d=0.0;
 	long c[ALGOR_NUM][SIZE_NUM];
 #define	R_DSA_512	0
@@ -907,6 +909,10 @@ int MAIN(int argc, char **argv)
 			doit[D_CBC_192_AES]=1;
 			doit[D_CBC_256_AES]=1;
 			}
+		else if (strcmp(*argv,"ghash") == 0)
+			{
+			doit[D_GHASH]=1;
+			}
 		else
 #endif
 #ifndef OPENSSL_NO_CAMELLIA
@@ -1277,6 +1283,7 @@ int MAIN(int argc, char **argv)
 	c[D_IGE_128_AES][0]=count;
 	c[D_IGE_192_AES][0]=count;
 	c[D_IGE_256_AES][0]=count;
+	c[D_GHASH][0]=count;
 
 	for (i=1; i<SIZE_NUM; i++)
 		{
@@ -1471,7 +1478,7 @@ int MAIN(int argc, char **argv)
 # error "You cannot disable DES on systems without SIGALRM."
 #endif /* OPENSSL_NO_DES */
 #else
-#define COND(c)	(run)
+#define COND(c)	(run && count<0x7fffffff)
 #define COUNT(d) (count)
 #ifndef _WIN32
 	signal(SIGALRM,sig_done);
@@ -1767,7 +1774,22 @@ int MAIN(int argc, char **argv)
 			print_result(D_IGE_256_AES,j,count,d);
 			}
 		}
+	if (doit[D_GHASH])
+		{
+		GCM128_CONTEXT *ctx = CRYPTO_gcm128_new(&aes_ks1,(block128_f)AES_encrypt);
+		CRYPTO_gcm128_setiv (ctx,(unsigned char *)"0123456789ab",12);
 
+		for (j=0; j<SIZE_NUM; j++)
+			{
+			print_message(names[D_GHASH],c[D_GHASH][j],lengths[j]);
+			Time_F(START);
+			for (count=0,run=1; COND(c[D_GHASH][j]); count++)
+				CRYPTO_gcm128_aad(ctx,buf,lengths[j]);
+			d=Time_F(STOP);
+			print_result(D_GHASH,j,count,d);
+			}
+		CRYPTO_gcm128_release(ctx);
+		}
 
 #endif
 #ifndef OPENSSL_NO_CAMELLIA
-- 
2.34.1