1/* crypto/rc4/rc4speed.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59/* 11-Sep-92 Andrew Daviel   Support for Silicon Graphics IRIX added */
60/* 06-Apr-92 Luke Brennan    Support for VMS and add extra signal calls */
61
62#if !defined(OPENSSL_SYS_MSDOS) && (!defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX)
63#define TIMES
64#endif
65
66#include <stdio.h>
67
68#include <openssl/e_os2.h>
69#include OPENSSL_UNISTD_IO
70OPENSSL_DECLARE_EXIT
71
72#ifndef OPENSSL_SYS_NETWARE
73#include <signal.h>
74#endif
75
76#ifndef _IRIX
77#include <time.h>
78#endif
79#ifdef TIMES
80#include <sys/types.h>
81#include <sys/times.h>
82#endif
83
84/* Depending on the VMS version, the tms structure is perhaps defined.
85   The __TMS macro will show if it was.  If it wasn't defined, we should
86   undefine TIMES, since that tells the rest of the program how things
87   should be handled.				-- Richard Levitte */
88#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)
89#undef TIMES
90#endif
91
92#ifndef TIMES
93#include <sys/timeb.h>
94#endif
95
96#if defined(sun) || defined(__ultrix)
97#define _POSIX_SOURCE
98#include <limits.h>
99#include <sys/param.h>
100#endif
101
102#include <openssl/rc4.h>
103
104/* The following if from times(3) man page.  It may need to be changed */
105#ifndef HZ
106#ifndef CLK_TCK
107#define HZ	100.0
108#else /* CLK_TCK */
109#define HZ ((double)CLK_TCK)
110#endif
111#endif
112
113#define BUFSIZE	((long)1024)
114long run=0;
115
116double Time_F(int s);
117#ifdef SIGALRM
118#if defined(__STDC__) || defined(sgi) || defined(_AIX)
119#define SIGRETTYPE void
120#else
121#define SIGRETTYPE int
122#endif
123
124SIGRETTYPE sig_done(int sig);
125SIGRETTYPE sig_done(int sig)
126	{
127	signal(SIGALRM,sig_done);
128	run=0;
129#ifdef LINT
130	sig=sig;
131#endif
132	}
133#endif
134
135#define START	0
136#define STOP	1
137
138double Time_F(int s)
139	{
140	double ret;
141#ifdef TIMES
142	static struct tms tstart,tend;
143
144	if (s == START)
145		{
146		times(&tstart);
147		return(0);
148		}
149	else
150		{
151		times(&tend);
152		ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ;
153		return((ret == 0.0)?1e-6:ret);
154		}
155#else /* !times() */
156	static struct timeb tstart,tend;
157	long i;
158
159	if (s == START)
160		{
161		ftime(&tstart);
162		return(0);
163		}
164	else
165		{
166		ftime(&tend);
167		i=(long)tend.millitm-(long)tstart.millitm;
168		ret=((double)(tend.time-tstart.time))+((double)i)/1e3;
169		return((ret == 0.0)?1e-6:ret);
170		}
171#endif
172	}
173
174int main(int argc, char **argv)
175	{
176	long count;
177	static unsigned char buf[BUFSIZE];
178	static unsigned char key[] ={
179			0x12,0x34,0x56,0x78,0x9a,0xbc,0xde,0xf0,
180			0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,
181			};
182	RC4_KEY sch;
183	double a,b,c,d;
184#ifndef SIGALRM
185	long ca,cb,cc;
186#endif
187
188#ifndef TIMES
189	printf("To get the most accurate results, try to run this\n");
190	printf("program when this computer is idle.\n");
191#endif
192
193#ifndef SIGALRM
194	printf("First we calculate the approximate speed ...\n");
195	RC4_set_key(&sch,16,key);
196	count=10;
197	do	{
198		long i;
199		unsigned long data[2];
200
201		count*=2;
202		Time_F(START);
203		for (i=count; i; i--)
204			RC4(&sch,8,buf,buf);
205		d=Time_F(STOP);
206		} while (d < 3.0);
207	ca=count/512;
208	cc=count*8/BUFSIZE+1;
209	printf("Doing RC4_set_key %ld times\n",ca);
210#define COND(d)	(count != (d))
211#define COUNT(d) (d)
212#else
213#define COND(c)	(run)
214#define COUNT(d) (count)
215	signal(SIGALRM,sig_done);
216	printf("Doing RC4_set_key for 10 seconds\n");
217	alarm(10);
218#endif
219
220	Time_F(START);
221	for (count=0,run=1; COND(ca); count+=4)
222		{
223		RC4_set_key(&sch,16,key);
224		RC4_set_key(&sch,16,key);
225		RC4_set_key(&sch,16,key);
226		RC4_set_key(&sch,16,key);
227		}
228	d=Time_F(STOP);
229	printf("%ld RC4_set_key's in %.2f seconds\n",count,d);
230	a=((double)COUNT(ca))/d;
231
232#ifdef SIGALRM
233	printf("Doing RC4 on %ld byte blocks for 10 seconds\n",BUFSIZE);
234	alarm(10);
235#else
236	printf("Doing RC4 %ld times on %ld byte blocks\n",cc,BUFSIZE);
237#endif
238	Time_F(START);
239	for (count=0,run=1; COND(cc); count++)
240		RC4(&sch,BUFSIZE,buf,buf);
241	d=Time_F(STOP);
242	printf("%ld RC4's of %ld byte blocks in %.2f second\n",
243		count,BUFSIZE,d);
244	c=((double)COUNT(cc)*BUFSIZE)/d;
245
246	printf("RC4 set_key per sec = %12.2f (%9.3fuS)\n",a,1.0e6/a);
247	printf("RC4   bytes per sec = %12.2f (%9.3fuS)\n",c,8.0e6/c);
248	exit(0);
249#if defined(LINT) || defined(OPENSSL_SYS_MSDOS)
250	return(0);
251#endif
252	}
253
254