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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 <openssl/rc4.h> | |
| 63 #include <openssl/evp.h> | |
| 64 | |
| 65 char *usage[]={ | |
| 66 "usage: rc4 args\n", | |
| 67 "\n", | |
| 68 " -in arg - input file - default stdin\n", | |
| 69 " -out arg - output file - default stdout\n", | |
| 70 " -key key - password\n", | |
| 71 NULL | |
| 72 }; | |
| 73 | |
| 74 int main(int argc, char *argv[]) | |
| 75 { | |
| 76 FILE *in=NULL,*out=NULL; | |
| 77 char *infile=NULL,*outfile=NULL,*keystr=NULL; | |
| 78 RC4_KEY key; | |
| 79 char buf[BUFSIZ]; | |
| 80 int badops=0,i; | |
| 81 char **pp; | |
| 82 unsigned char md[MD5_DIGEST_LENGTH]; | |
| 83 | |
| 84 argc--; | |
| 85 argv++; | |
| 86 while (argc >= 1) | |
| 87 { | |
| 88 if (strcmp(*argv,"-in") == 0) | |
| 89 { | |
| 90 if (--argc < 1) goto bad; | |
| 91 infile= *(++argv); | |
| 92 } | |
| 93 else if (strcmp(*argv,"-out") == 0) | |
| 94 { | |
| 95 if (--argc < 1) goto bad; | |
| 96 outfile= *(++argv); | |
| 97 } | |
| 98 else if (strcmp(*argv,"-key") == 0) | |
| 99 { | |
| 100 if (--argc < 1) goto bad; | |
| 101 keystr= *(++argv); | |
| 102 } | |
| 103 else | |
| 104 { | |
| 105 fprintf(stderr,"unknown option %s\n",*argv); | |
| 106 badops=1; | |
| 107 break; | |
| 108 } | |
| 109 argc--; | |
| 110 argv++; | |
| 111 } | |
| 112 | |
| 113 if (badops) | |
| 114 { | |
| 115 bad: | |
| 116 for (pp=usage; (*pp != NULL); pp++) | |
| 117 fprintf(stderr,"%s",*pp); | |
| 118 exit(1); | |
| 119 } | |
| 120 | |
| 121 if (infile == NULL) | |
| 122 in=stdin; | |
| 123 else | |
| 124 { | |
| 125 in=fopen(infile,"r"); | |
| 126 if (in == NULL) | |
| 127 { | |
| 128 perror("open"); | |
| 129 exit(1); | |
| 130 } | |
| 131 | |
| 132 } | |
| 133 if (outfile == NULL) | |
| 134 out=stdout; | |
| 135 else | |
| 136 { | |
| 137 out=fopen(outfile,"w"); | |
| 138 if (out == NULL) | |
| 139 { | |
| 140 perror("open"); | |
| 141 exit(1); | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 #ifdef OPENSSL_SYS_MSDOS | |
| 146 /* This should set the file to binary mode. */ | |
| 147 { | |
| 148 #include <fcntl.h> | |
| 149 setmode(fileno(in),O_BINARY); | |
| 150 setmode(fileno(out),O_BINARY); | |
| 151 } | |
| 152 #endif | |
| 153 | |
| 154 if (keystr == NULL) | |
| 155 { /* get key */ | |
| 156 i=EVP_read_pw_string(buf,BUFSIZ,"Enter RC4 password:",0); | |
| 157 if (i != 0) | |
| 158 { | |
| 159 OPENSSL_cleanse(buf,BUFSIZ); | |
| 160 fprintf(stderr,"bad password read\n"); | |
| 161 exit(1); | |
| 162 } | |
| 163 keystr=buf; | |
| 164 } | |
| 165 | |
| 166 EVP_Digest((unsigned char *)keystr,strlen(keystr),md,NULL,EVP_md5(),NULL
); | |
| 167 OPENSSL_cleanse(keystr,strlen(keystr)); | |
| 168 RC4_set_key(&key,MD5_DIGEST_LENGTH,md); | |
| 169 | |
| 170 for(;;) | |
| 171 { | |
| 172 i=fread(buf,1,BUFSIZ,in); | |
| 173 if (i == 0) break; | |
| 174 if (i < 0) | |
| 175 { | |
| 176 perror("read"); | |
| 177 exit(1); | |
| 178 } | |
| 179 RC4(&key,(unsigned int)i,(unsigned char *)buf, | |
| 180 (unsigned char *)buf); | |
| 181 i=fwrite(buf,(unsigned int)i,1,out); | |
| 182 if (i != 1) | |
| 183 { | |
| 184 perror("write"); | |
| 185 exit(1); | |
| 186 } | |
| 187 } | |
| 188 fclose(out); | |
| 189 fclose(in); | |
| 190 exit(0); | |
| 191 return(1); | |
| 192 } | |
| 193 | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master