From 6acb4ff3893c2f4f9aca81798b6abec379370df0 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Fri, 9 Jul 2010 14:10:51 +0000
Subject: gcm128.c: API modification and readability improvements, add ghash
 benchmark to apps/speed.c.

---
 apps/speed.c | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

(limited to 'apps')

diff --git a/apps/speed.c b/apps/speed.c
index 85673ff..af86cee 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>
 
 #ifndef HAVE_FORK
 # if defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MACINTOSH_CLASSIC) || defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_NETWARE)
@@ -214,7 +215,7 @@ 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
@@ -229,7 +230,7 @@ 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
@@ -479,6 +480,7 @@ 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
@@ -904,6 +906,10 @@ 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
@@ -1273,6 +1279,7 @@ 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++)
 		{
@@ -1566,7 +1573,11 @@ int MAIN(int argc, char **argv)
 			print_message(names[D_SHA1],c[D_SHA1][j],lengths[j]);
 			Time_F(START);
 			for (count=0,run=1; COND(c[D_SHA1][j]); count++)
+#if 0
 				EVP_Digest(buf,(unsigned long)lengths[j],&(sha[0]),NULL,EVP_sha1(),NULL);
+#else
+				SHA1(buf,lengths[j],sha);
+#endif
 			d=Time_F(STOP);
 			print_result(D_SHA1,j,count,d);
 			}
@@ -1763,7 +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,"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
-- 
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