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authorryker <>1998-10-05 20:13:15 +0000
committerryker <>1998-10-05 20:13:15 +0000
commit536c76cbb863bab152f19842ab88772c01e922c7 (patch)
treedfecec371a097b73d605aae665887946d9982219 /src/lib/libcrypto/rc4/rc4.c
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/rc4/rc4.c')
-rw-r--r--src/lib/libcrypto/rc4/rc4.c194
1 files changed, 194 insertions, 0 deletions
diff --git a/src/lib/libcrypto/rc4/rc4.c b/src/lib/libcrypto/rc4/rc4.c
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+++ b/src/lib/libcrypto/rc4/rc4.c
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1/* crypto/rc4/rc4.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#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#include "rc4.h"
63
64char *usage[]={
65"usage: rc4 args\n",
66"\n",
67" -in arg - input file - default stdin\n",
68" -out arg - output file - default stdout\n",
69" -key key - password\n",
70NULL
71};
72
73int main(argc, argv)
74int argc;
75char *argv[];
76 {
77 FILE *in=NULL,*out=NULL;
78 char *infile=NULL,*outfile=NULL,*keystr=NULL;
79 RC4_KEY key;
80 char buf[BUFSIZ];
81 int badops=0,i;
82 char **pp;
83 unsigned char md[MD5_DIGEST_LENGTH];
84
85 argc--;
86 argv++;
87 while (argc >= 1)
88 {
89 if (strcmp(*argv,"-in") == 0)
90 {
91 if (--argc < 1) goto bad;
92 infile= *(++argv);
93 }
94 else if (strcmp(*argv,"-out") == 0)
95 {
96 if (--argc < 1) goto bad;
97 outfile= *(++argv);
98 }
99 else if (strcmp(*argv,"-key") == 0)
100 {
101 if (--argc < 1) goto bad;
102 keystr= *(++argv);
103 }
104 else
105 {
106 fprintf(stderr,"unknown option %s\n",*argv);
107 badops=1;
108 break;
109 }
110 argc--;
111 argv++;
112 }
113
114 if (badops)
115 {
116bad:
117 for (pp=usage; (*pp != NULL); pp++)
118 fprintf(stderr,*pp);
119 exit(1);
120 }
121
122 if (infile == NULL)
123 in=stdin;
124 else
125 {
126 in=fopen(infile,"r");
127 if (in == NULL)
128 {
129 perror("open");
130 exit(1);
131 }
132
133 }
134 if (outfile == NULL)
135 out=stdout;
136 else
137 {
138 out=fopen(outfile,"w");
139 if (out == NULL)
140 {
141 perror("open");
142 exit(1);
143 }
144 }
145
146#ifdef MSDOS
147 /* This should set the file to binary mode. */
148 {
149#include <fcntl.h>
150 setmode(fileno(in),O_BINARY);
151 setmode(fileno(out),O_BINARY);
152 }
153#endif
154
155 if (keystr == NULL)
156 { /* get key */
157 i=EVP_read_pw_string(buf,BUFSIZ,"Enter RC4 password:",0);
158 if (i != 0)
159 {
160 memset(buf,0,BUFSIZ);
161 fprintf(stderr,"bad password read\n");
162 exit(1);
163 }
164 keystr=buf;
165 }
166
167 MD5((unsigned char *)keystr,(unsigned long)strlen(keystr),md);
168 memset(keystr,0,strlen(keystr));
169 RC4_set_key(&key,MD5_DIGEST_LENGTH,md);
170
171 for(;;)
172 {
173 i=fread(buf,1,BUFSIZ,in);
174 if (i == 0) break;
175 if (i < 0)
176 {
177 perror("read");
178 exit(1);
179 }
180 RC4(&key,(unsigned int)i,(unsigned char *)buf,
181 (unsigned char *)buf);
182 i=fwrite(buf,(unsigned int)i,1,out);
183 if (i != 1)
184 {
185 perror("write");
186 exit(1);
187 }
188 }
189 fclose(out);
190 fclose(in);
191 exit(0);
192 return(1);
193 }
194