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rc4speed.c
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1 /* crypto/rc4/rc4speed.c */
2 /* Copyright (C) 1995-1998 Eric Young ([email protected])
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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
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)
114 long run=0;
115 
116 double 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 
124 SIGRETTYPE sig_done(int sig);
125 SIGRETTYPE 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 
138 double 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 
174 int 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