+++ /dev/null
-/* 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);
-}
+++ /dev/null
-Newsgroups: sci.crypt,alt.security,comp.security.misc,alt.privacy
-Path: ghost.dsi.unimi.it!univ-lyon1.fr!jussieu.fr!zaphod.crihan.fr!warwick!clyde.open.ac.uk!strath-cs!bnr.co.uk!bt!pipex!howland.reston.ans.net!europa.eng.gtefsd.com!MathWorks.Com!yeshua.marcam.com!charnel.ecst.csuchico.edu!csusac!csus.edu!netcom.com!sterndark
-From: sterndark@netcom.com (David Sterndark)
-Subject: RC4 Algorithm revealed.
-Message-ID: <sternCvKL4B.Hyy@netcom.com>
-Sender: sterndark@netcom.com
-Organization: NETCOM On-line Communication Services (408 261-4700 guest)
-X-Newsreader: TIN [version 1.2 PL1]
-Date: Wed, 14 Sep 1994 06:35:31 GMT
-Lines: 263
-Xref: ghost.dsi.unimi.it sci.crypt:27332 alt.security:14732 comp.security.misc:11701 alt.privacy:16026
-
-I am shocked, shocked, I tell you, shocked, to discover
-that the cypherpunks have illegaly and criminally revealed
-a crucial RSA trade secret and harmed the security of
-America by reverse engineering the RC4 algorithm and
-publishing it to the world.
-
-On Saturday morning an anonymous cypherpunk wrote:
-
-
- SUBJECT: RC4 Source Code
-
-
- I've tested this. It is compatible with the RC4 object module
- that comes in the various RSA toolkits.
-
- /* rc4.h */
- typedef struct rc4_key
- {
- unsigned char state[256];
- unsigned char x;
- unsigned char y;
- } rc4_key;
- void prepare_key(unsigned char *key_data_ptr,int key_data_len,
- rc4_key *key);
- void rc4(unsigned char *buffer_ptr,int buffer_len,rc4_key * key);
-
-
- /*rc4.c */
- #include "rc4.h"
- static void swap_byte(unsigned char *a, unsigned char *b);
- void prepare_key(unsigned char *key_data_ptr, int key_data_len,
- rc4_key *key)
- {
- unsigned char swapByte;
- unsigned char index1;
- unsigned char index2;
- unsigned char* state;
- short counter;
-
- state = &key->state[0];
- for(counter = 0; counter < 256; counter++)
- state[counter] = counter;
- key->x = 0;
- key->y = 0;
- index1 = 0;
- index2 = 0;
- for(counter = 0; counter < 256; counter++)
- {
- index2 = (key_data_ptr[index1] + state[counter] +
- index2) % 256;
- swap_byte(&state[counter], &state[index2]);
-
- index1 = (index1 + 1) % key_data_len;
- }
- }
-
- void rc4(unsigned char *buffer_ptr, int buffer_len, rc4_key *key)
- {
- unsigned char x;
- unsigned char y;
- unsigned char* state;
- unsigned char xorIndex;
- short counter;
-
- x = key->x;
- y = key->y;
-
- state = &key->state[0];
- for(counter = 0; counter < buffer_len; counter ++)
- {
- x = (x + 1) % 256;
- y = (state[x] + y) % 256;
- swap_byte(&state[x], &state[y]);
-
- xorIndex = (state[x] + state[y]) % 256;
-
- buffer_ptr[counter] ^= state[xorIndex];
- }
- key->x = x;
- key->y = y;
- }
-
- static void swap_byte(unsigned char *a, unsigned char *b)
- {
- unsigned char swapByte;
-
- swapByte = *a;
- *a = *b;
- *b = swapByte;
- }
-
-
-
-Another cypherpunk, this one not anonymous, tested the
-output from this algorithm against the output from
-official RC4 object code
-
-
- Date: Tue, 13 Sep 94 18:37:56 PDT
- From: ekr@eit.COM (Eric Rescorla)
- Message-Id: <9409140137.AA17743@eitech.eit.com>
- Subject: RC4 compatibility testing
- Cc: cypherpunks@toad.com
-
- One data point:
-
- I can't say anything about the internals of RC4 versus the
- algorithm that Bill Sommerfeld is rightly calling 'Alleged RC4',
- since I don't know anything about RC4's internals.
-
- However, I do have a (legitimately acquired) copy of BSAFE2 and
- so I'm able to compare the output of this algorithm to the output
- of genuine RC4 as found in BSAFE. I chose a set of test vectors
- and ran them through both algorithms. The algorithms appear to
- give identical results, at least with these key/plaintext pairs.
-
- I note that this is the algorithm _without_ Hal Finney's
- proposed modification
-
- (see <199409130605.XAA24133@jobe.shell.portal.com>).
-
- The vectors I used (together with the ciphertext they produce)
- follow at the end of this message.
-
- -Ekr
-
- Disclaimer: This posting does not reflect the opinions of EIT.
-
- --------------------results follow--------------
- Test vector 0
- Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef
- Input: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef
- 0 Output: 0x75 0xb7 0x87 0x80 0x99 0xe0 0xc5 0x96
-
- Test vector 1
- Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef
- Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
- 0 Output: 0x74 0x94 0xc2 0xe7 0x10 0x4b 0x08 0x79
-
- Test vector 2
- Key: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
- Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
- 0 Output: 0xde 0x18 0x89 0x41 0xa3 0x37 0x5d 0x3a
-
- Test vector 3
- Key: 0xef 0x01 0x23 0x45
- Input: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
- 0 Output: 0xd6 0xa1 0x41 0xa7 0xec 0x3c 0x38 0xdf 0xbd 0x61
-
- Test vector 4
- Key: 0x01 0x23 0x45 0x67 0x89 0xab 0xcd 0xef
- Input: 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01 0x01
- 0x01
- 0 Output: 0x75 0x95 0xc3 0xe6 0x11 0x4a 0x09 0x78 0x0c 0x4a 0xd4
- 0x52 0x33 0x8e 0x1f 0xfd 0x9a 0x1b 0xe9 0x49 0x8f
- 0x81 0x3d 0x76 0x53 0x34 0x49 0xb6 0x77 0x8d 0xca
- 0xd8 0xc7 0x8a 0x8d 0x2b 0xa9 0xac 0x66 0x08 0x5d
- 0x0e 0x53 0xd5 0x9c 0x26 0xc2 0xd1 0xc4 0x90 0xc1
- 0xeb 0xbe 0x0c 0xe6 0x6d 0x1b 0x6b 0x1b 0x13 0xb6
- 0xb9 0x19 0xb8 0x47 0xc2 0x5a 0x91 0x44 0x7a 0x95
- 0xe7 0x5e 0x4e 0xf1 0x67 0x79 0xcd 0xe8 0xbf 0x0a
- 0x95 0x85 0x0e 0x32 0xaf 0x96 0x89 0x44 0x4f 0xd3
- 0x77 0x10 0x8f 0x98 0xfd 0xcb 0xd4 0xe7 0x26 0x56
- 0x75 0x00 0x99 0x0b 0xcc 0x7e 0x0c 0xa3 0xc4 0xaa
- 0xa3 0x04 0xa3 0x87 0xd2 0x0f 0x3b 0x8f 0xbb 0xcd
- 0x42 0xa1 0xbd 0x31 0x1d 0x7a 0x43 0x03 0xdd 0xa5
- 0xab 0x07 0x88 0x96 0xae 0x80 0xc1 0x8b 0x0a 0xf6
- 0x6d 0xff 0x31 0x96 0x16 0xeb 0x78 0x4e 0x49 0x5a
- 0xd2 0xce 0x90 0xd7 0xf7 0x72 0xa8 0x17 0x47 0xb6
- 0x5f 0x62 0x09 0x3b 0x1e 0x0d 0xb9 0xe5 0xba 0x53
- 0x2f 0xaf 0xec 0x47 0x50 0x83 0x23 0xe6 0x71 0x32
- 0x7d 0xf9 0x44 0x44 0x32 0xcb 0x73 0x67 0xce 0xc8
- 0x2f 0x5d 0x44 0xc0 0xd0 0x0b 0x67 0xd6 0x50 0xa0
- 0x75 0xcd 0x4b 0x70 0xde 0xdd 0x77 0xeb 0x9b 0x10
- 0x23 0x1b 0x6b 0x5b 0x74 0x13 0x47 0x39 0x6d 0x62
- 0x89 0x74 0x21 0xd4 0x3d 0xf9 0xb4 0x2e 0x44 0x6e
- 0x35 0x8e 0x9c 0x11 0xa9 0xb2 0x18 0x4e 0xcb 0xef
- 0x0c 0xd8 0xe7 0xa8 0x77 0xef 0x96 0x8f 0x13 0x90
- 0xec 0x9b 0x3d 0x35 0xa5 0x58 0x5c 0xb0 0x09 0x29
- 0x0e 0x2f 0xcd 0xe7 0xb5 0xec 0x66 0xd9 0x08 0x4b
- 0xe4 0x40 0x55 0xa6 0x19 0xd9 0xdd 0x7f 0xc3 0x16
- 0x6f 0x94 0x87 0xf7 0xcb 0x27 0x29 0x12 0x42 0x64
- 0x45 0x99 0x85 0x14 0xc1 0x5d 0x53 0xa1 0x8c 0x86
- 0x4c 0xe3 0xa2 0xb7 0x55 0x57 0x93 0x98 0x81 0x26
- 0x52 0x0e 0xac 0xf2 0xe3 0x06 0x6e 0x23 0x0c 0x91
- 0xbe 0xe4 0xdd 0x53 0x04 0xf5 0xfd 0x04 0x05 0xb3
- 0x5b 0xd9 0x9c 0x73 0x13 0x5d 0x3d 0x9b 0xc3 0x35
- 0xee 0x04 0x9e 0xf6 0x9b 0x38 0x67 0xbf 0x2d 0x7b
- 0xd1 0xea 0xa5 0x95 0xd8 0xbf 0xc0 0x06 0x6f 0xf8
- 0xd3 0x15 0x09 0xeb 0x0c 0x6c 0xaa 0x00 0x6c 0x80
- 0x7a 0x62 0x3e 0xf8 0x4c 0x3d 0x33 0xc1 0x95 0xd2
- 0x3e 0xe3 0x20 0xc4 0x0d 0xe0 0x55 0x81 0x57 0xc8
- 0x22 0xd4 0xb8 0xc5 0x69 0xd8 0x49 0xae 0xd5 0x9d
- 0x4e 0x0f 0xd7 0xf3 0x79 0x58 0x6b 0x4b 0x7f 0xf6
- 0x84 0xed 0x6a 0x18 0x9f 0x74 0x86 0xd4 0x9b 0x9c
- 0x4b 0xad 0x9b 0xa2 0x4b 0x96 0xab 0xf9 0x24 0x37
- 0x2c 0x8a 0x8f 0xff 0xb1 0x0d 0x55 0x35 0x49 0x00
- 0xa7 0x7a 0x3d 0xb5 0xf2 0x05 0xe1 0xb9 0x9f 0xcd
- 0x86 0x60 0x86 0x3a 0x15 0x9a 0xd4 0xab 0xe4 0x0f
- 0xa4 0x89 0x34 0x16 0x3d 0xdd 0xe5 0x42 0xa6 0x58
- 0x55 0x40 0xfd 0x68 0x3c 0xbf 0xd8 0xc0 0x0f 0x12
- 0x12 0x9a 0x28 0x4d 0xea 0xcc 0x4c 0xde 0xfe 0x58
- 0xbe 0x71 0x37 0x54 0x1c 0x04 0x71 0x26 0xc8 0xd4
- 0x9e 0x27 0x55 0xab 0x18 0x1a 0xb7 0xe9 0x40 0xb0
- 0xc0
-
-
-
---
- ---------------------------------------------------------------------
-We have the right to defend ourselves and our
-property, because of the kind of animals that we James A. Donald
-are. True law derives from this right, not from
-the arbitrary power of the omnipotent state. jamesd@netcom.com
-
-