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Diffstat (limited to 'src/lib/libcrypto/rc4/rc4.c')
-rw-r--r-- | src/lib/libcrypto/rc4/rc4.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/lib/libcrypto/rc4/rc4.c b/src/lib/libcrypto/rc4/rc4.c new file mode 100644 index 0000000000..127e8a5093 --- /dev/null +++ b/src/lib/libcrypto/rc4/rc4.c | |||
@@ -0,0 +1,194 @@ | |||
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 | |||
64 | char *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", | ||
70 | NULL | ||
71 | }; | ||
72 | |||
73 | int main(argc, argv) | ||
74 | int argc; | ||
75 | char *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 | { | ||
116 | bad: | ||
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 | |||