diff options
Diffstat (limited to 'thirdparty/openssl/crypto/rc4/rc4.c')
| -rw-r--r-- | thirdparty/openssl/crypto/rc4/rc4.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/rc4/rc4.c b/thirdparty/openssl/crypto/rc4/rc4.c new file mode 100644 index 0000000000..99082e8919 --- /dev/null +++ b/thirdparty/openssl/crypto/rc4/rc4.c @@ -0,0 +1,179 @@ +/* crypto/rc4/rc4.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <openssl/rc4.h> +#include <openssl/evp.h> + +char *usage[] = { + "usage: rc4 args\n", + "\n", + " -in arg - input file - default stdin\n", + " -out arg - output file - default stdout\n", + " -key key - password\n", + NULL +}; + +int main(int argc, char *argv[]) +{ + FILE *in = NULL, *out = NULL; + char *infile = NULL, *outfile = NULL, *keystr = NULL; + RC4_KEY key; + char buf[BUFSIZ]; + int badops = 0, i; + char **pp; + unsigned char md[MD5_DIGEST_LENGTH]; + + argc--; + argv++; + while (argc >= 1) { + if (strcmp(*argv, "-in") == 0) { + if (--argc < 1) + goto bad; + infile = *(++argv); + } else if (strcmp(*argv, "-out") == 0) { + if (--argc < 1) + goto bad; + outfile = *(++argv); + } else if (strcmp(*argv, "-key") == 0) { + if (--argc < 1) + goto bad; + keystr = *(++argv); + } else { + fprintf(stderr, "unknown option %s\n", *argv); + badops = 1; + break; + } + argc--; + argv++; + } + + if (badops) { + bad: + for (pp = usage; (*pp != NULL); pp++) + fprintf(stderr, "%s", *pp); + exit(1); + } + + if (infile == NULL) + in = stdin; + else { + in = fopen(infile, "r"); + if (in == NULL) { + perror("open"); + exit(1); + } + + } + if (outfile == NULL) + out = stdout; + else { + out = fopen(outfile, "w"); + if (out == NULL) { + perror("open"); + exit(1); + } + } + +#ifdef OPENSSL_SYS_MSDOS + /* This should set the file to binary mode. */ + { +# include <fcntl.h> + setmode(fileno(in), O_BINARY); + setmode(fileno(out), O_BINARY); + } +#endif + + if (keystr == NULL) { /* get key */ + i = EVP_read_pw_string(buf, BUFSIZ, "Enter RC4 password:", 0); + if (i != 0) { + OPENSSL_cleanse(buf, BUFSIZ); + fprintf(stderr, "bad password read\n"); + exit(1); + } + keystr = buf; + } + + EVP_Digest((unsigned char *)keystr, strlen(keystr), md, NULL, EVP_md5(), + NULL); + OPENSSL_cleanse(keystr, strlen(keystr)); + RC4_set_key(&key, MD5_DIGEST_LENGTH, md); + + for (;;) { + i = fread(buf, 1, BUFSIZ, in); + if (i == 0) + break; + if (i < 0) { + perror("read"); + exit(1); + } + RC4(&key, (unsigned int)i, (unsigned char *)buf, + (unsigned char *)buf); + i = fwrite(buf, (unsigned int)i, 1, out); + if (i != 1) { + perror("write"); + exit(1); + } + } + fclose(out); + fclose(in); + exit(0); + return (1); +} |