| 1 | /* apps/enc.c */ |
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| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * This package is an SSL implementation written |
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| 6 | * by Eric Young (eay@cryptsoft.com). |
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| 7 | * The implementation was written so as to conform with Netscapes SSL. |
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| 8 | * |
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| 9 | * This library is free for commercial and non-commercial use as long as |
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| 10 | * the following conditions are aheared to. The following conditions |
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| 11 | * apply to all code found in this distribution, be it the RC4, RSA, |
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| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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| 13 | * included with this distribution is covered by the same copyright terms |
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| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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| 15 | * |
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| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
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| 17 | * the code are not to be removed. |
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| 18 | * If this package is used in a product, Eric Young should be given attribution |
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| 19 | * as the author of the parts of the library used. |
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| 20 | * This can be in the form of a textual message at program startup or |
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| 21 | * in documentation (online or textual) provided with the package. |
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| 22 | * |
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| 23 | * Redistribution and use in source and binary forms, with or without |
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| 24 | * modification, are permitted provided that the following conditions |
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| 25 | * are met: |
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| 26 | * 1. Redistributions of source code must retain the copyright |
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| 27 | * notice, this list of conditions and the following disclaimer. |
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| 28 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 29 | * notice, this list of conditions and the following disclaimer in the |
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| 30 | * documentation and/or other materials provided with the distribution. |
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| 31 | * 3. All advertising materials mentioning features or use of this software |
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| 32 | * must display the following acknowledgement: |
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| 33 | * "This product includes cryptographic software written by |
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| 34 | * Eric Young (eay@cryptsoft.com)" |
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| 35 | * The word 'cryptographic' can be left out if the rouines from the library |
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| 36 | * being used are not cryptographic related :-). |
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| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
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| 38 | * the apps directory (application code) you must include an acknowledgement: |
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| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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| 40 | * |
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| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 51 | * SUCH DAMAGE. |
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| 52 | * |
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| 53 | * The licence and distribution terms for any publically available version or |
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| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
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| 55 | * copied and put under another distribution licence |
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| 56 | * [including the GNU Public Licence.] |
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| 57 | */ |
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| 58 | |
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| 59 | #include <stdio.h> |
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| 60 | #include <stdlib.h> |
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| 61 | #include <string.h> |
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| 62 | #include "apps.h" |
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| 63 | #include <openssl/bio.h> |
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| 64 | #include <openssl/err.h> |
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| 65 | #include <openssl/evp.h> |
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| 66 | #include <openssl/objects.h> |
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| 67 | #include <openssl/x509.h> |
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| 68 | #include <openssl/rand.h> |
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| 69 | #ifndef NO_MD5 |
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| 70 | #include <openssl/md5.h> |
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| 71 | #endif |
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| 72 | #include <openssl/pem.h> |
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| 73 | |
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| 74 | int set_hex(char *in,unsigned char *out,int size); |
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| 75 | #undef SIZE |
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| 76 | #undef BSIZE |
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| 77 | #undef PROG |
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| 78 | |
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| 79 | #define SIZE (512) |
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| 80 | #define BSIZE (8*1024) |
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| 81 | #define PROG enc_main |
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| 82 | |
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| 83 | int MAIN(int, char **); |
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| 84 | |
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| 85 | int MAIN(int argc, char **argv) |
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| 86 | { |
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| 87 | static const char magic[]="Salted__"; |
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| 88 | char mbuf[8]; /* should be 1 smaller than magic */ |
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| 89 | char *strbuf=NULL; |
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| 90 | unsigned char *buff=NULL,*bufsize=NULL; |
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| 91 | int bsize=BSIZE,verbose=0; |
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| 92 | int ret=1,inl; |
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| 93 | unsigned char key[24],iv[MD5_DIGEST_LENGTH]; |
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| 94 | unsigned char salt[PKCS5_SALT_LEN]; |
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| 95 | char *str=NULL, *passarg = NULL, *pass = NULL; |
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| 96 | char *hkey=NULL,*hiv=NULL,*hsalt = NULL; |
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| 97 | int enc=1,printkey=0,i,base64=0; |
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| 98 | int debug=0,olb64=0,nosalt=0; |
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| 99 | const EVP_CIPHER *cipher=NULL,*c; |
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| 100 | char *inf=NULL,*outf=NULL; |
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| 101 | BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL; |
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| 102 | #define PROG_NAME_SIZE 16 |
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| 103 | char pname[PROG_NAME_SIZE]; |
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| 104 | |
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| 105 | apps_startup(); |
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| 106 | |
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| 107 | if (bio_err == NULL) |
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| 108 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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| 109 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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| 110 | |
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| 111 | /* first check the program name */ |
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| 112 | program_name(argv[0],pname,PROG_NAME_SIZE); |
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| 113 | if (strcmp(pname,"base64") == 0) |
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| 114 | base64=1; |
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| 115 | |
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| 116 | cipher=EVP_get_cipherbyname(pname); |
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| 117 | if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0)) |
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| 118 | { |
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| 119 | BIO_printf(bio_err,"%s is an unknown cipher\n",pname); |
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| 120 | goto bad; |
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| 121 | } |
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| 122 | |
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| 123 | argc--; |
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| 124 | argv++; |
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| 125 | while (argc >= 1) |
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| 126 | { |
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| 127 | if (strcmp(*argv,"-e") == 0) |
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| 128 | enc=1; |
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| 129 | else if (strcmp(*argv,"-in") == 0) |
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| 130 | { |
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| 131 | if (--argc < 1) goto bad; |
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| 132 | inf= *(++argv); |
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| 133 | } |
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| 134 | else if (strcmp(*argv,"-out") == 0) |
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| 135 | { |
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| 136 | if (--argc < 1) goto bad; |
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| 137 | outf= *(++argv); |
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| 138 | } |
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| 139 | else if (strcmp(*argv,"-pass") == 0) |
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| 140 | { |
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| 141 | if (--argc < 1) goto bad; |
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| 142 | passarg= *(++argv); |
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| 143 | } |
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| 144 | else if (strcmp(*argv,"-d") == 0) |
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| 145 | enc=0; |
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| 146 | else if (strcmp(*argv,"-p") == 0) |
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| 147 | printkey=1; |
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| 148 | else if (strcmp(*argv,"-v") == 0) |
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| 149 | verbose=1; |
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| 150 | else if (strcmp(*argv,"-salt") == 0) |
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| 151 | nosalt=0; |
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| 152 | else if (strcmp(*argv,"-nosalt") == 0) |
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| 153 | nosalt=1; |
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| 154 | else if (strcmp(*argv,"-debug") == 0) |
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| 155 | debug=1; |
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| 156 | else if (strcmp(*argv,"-P") == 0) |
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| 157 | printkey=2; |
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| 158 | else if (strcmp(*argv,"-A") == 0) |
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| 159 | olb64=1; |
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| 160 | else if (strcmp(*argv,"-a") == 0) |
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| 161 | base64=1; |
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| 162 | else if (strcmp(*argv,"-base64") == 0) |
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| 163 | base64=1; |
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| 164 | else if (strcmp(*argv,"-bufsize") == 0) |
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| 165 | { |
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| 166 | if (--argc < 1) goto bad; |
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| 167 | bufsize=(unsigned char *)*(++argv); |
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| 168 | } |
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| 169 | else if (strcmp(*argv,"-k") == 0) |
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| 170 | { |
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| 171 | if (--argc < 1) goto bad; |
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| 172 | str= *(++argv); |
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| 173 | } |
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| 174 | else if (strcmp(*argv,"-kfile") == 0) |
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| 175 | { |
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| 176 | static char buf[128]; |
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| 177 | FILE *infile; |
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| 178 | char *file; |
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| 179 | |
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| 180 | if (--argc < 1) goto bad; |
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| 181 | file= *(++argv); |
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| 182 | infile=fopen(file,"r"); |
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| 183 | if (infile == NULL) |
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| 184 | { |
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| 185 | BIO_printf(bio_err,"unable to read key from '%s'\n", |
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| 186 | file); |
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| 187 | goto bad; |
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| 188 | } |
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| 189 | buf[0]='\0'; |
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| 190 | fgets(buf,128,infile); |
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| 191 | fclose(infile); |
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| 192 | i=strlen(buf); |
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| 193 | if ((i > 0) && |
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| 194 | ((buf[i-1] == '\n') || (buf[i-1] == '\r'))) |
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| 195 | buf[--i]='\0'; |
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| 196 | if ((i > 0) && |
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| 197 | ((buf[i-1] == '\n') || (buf[i-1] == '\r'))) |
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| 198 | buf[--i]='\0'; |
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| 199 | if (i < 1) |
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| 200 | { |
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| 201 | BIO_printf(bio_err,"zero length password\n"); |
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| 202 | goto bad; |
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| 203 | } |
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| 204 | str=buf; |
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| 205 | } |
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| 206 | else if (strcmp(*argv,"-K") == 0) |
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| 207 | { |
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| 208 | if (--argc < 1) goto bad; |
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| 209 | hkey= *(++argv); |
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| 210 | } |
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| 211 | else if (strcmp(*argv,"-S") == 0) |
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| 212 | { |
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| 213 | if (--argc < 1) goto bad; |
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| 214 | hsalt= *(++argv); |
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| 215 | } |
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| 216 | else if (strcmp(*argv,"-iv") == 0) |
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| 217 | { |
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| 218 | if (--argc < 1) goto bad; |
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| 219 | hiv= *(++argv); |
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| 220 | } |
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| 221 | else if ((argv[0][0] == '-') && |
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| 222 | ((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) |
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| 223 | { |
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| 224 | cipher=c; |
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| 225 | } |
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| 226 | else if (strcmp(*argv,"-none") == 0) |
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| 227 | cipher=NULL; |
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| 228 | else |
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| 229 | { |
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| 230 | BIO_printf(bio_err,"unknown option '%s'\n",*argv); |
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| 231 | bad: |
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| 232 | BIO_printf(bio_err,"options are\n"); |
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| 233 | BIO_printf(bio_err,"%-14s input file\n","-in <file>"); |
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| 234 | BIO_printf(bio_err,"%-14s output file\n","-out <file>"); |
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| 235 | BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>"); |
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| 236 | BIO_printf(bio_err,"%-14s encrypt\n","-e"); |
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| 237 | BIO_printf(bio_err,"%-14s decrypt\n","-d"); |
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| 238 | BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64"); |
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| 239 | BIO_printf(bio_err,"%-14s key is the next argument\n","-k"); |
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| 240 | BIO_printf(bio_err,"%-14s key is the first line of the file argument\n","-kfile"); |
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| 241 | BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv"); |
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| 242 | BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]"); |
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| 243 | BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>"); |
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| 244 | |
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| 245 | BIO_printf(bio_err,"Cipher Types\n"); |
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| 246 | BIO_printf(bio_err,"des : 56 bit key DES encryption\n"); |
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| 247 | BIO_printf(bio_err,"des_ede :112 bit key ede DES encryption\n"); |
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| 248 | BIO_printf(bio_err,"des_ede3:168 bit key ede DES encryption\n"); |
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| 249 | #ifndef NO_IDEA |
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| 250 | BIO_printf(bio_err,"idea :128 bit key IDEA encryption\n"); |
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| 251 | #endif |
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| 252 | #ifndef NO_RC4 |
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| 253 | BIO_printf(bio_err,"rc2 :128 bit key RC2 encryption\n"); |
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| 254 | #endif |
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| 255 | #ifndef NO_BF |
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| 256 | BIO_printf(bio_err,"bf :128 bit key Blowfish encryption\n"); |
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| 257 | #endif |
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| 258 | #ifndef NO_RC4 |
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| 259 | BIO_printf(bio_err," -%-5s :128 bit key RC4 encryption\n", |
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| 260 | LN_rc4); |
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| 261 | #endif |
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| 262 | |
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| 263 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 264 | LN_des_ecb,LN_des_cbc, |
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| 265 | LN_des_cfb64,LN_des_ofb64); |
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| 266 | BIO_printf(bio_err," -%-4s (%s)\n", |
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| 267 | "des", LN_des_cbc); |
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| 268 | |
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| 269 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 270 | LN_des_ede,LN_des_ede_cbc, |
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| 271 | LN_des_ede_cfb64,LN_des_ede_ofb64); |
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| 272 | BIO_printf(bio_err," -desx -none\n"); |
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| 273 | |
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| 274 | |
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| 275 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 276 | LN_des_ede3,LN_des_ede3_cbc, |
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| 277 | LN_des_ede3_cfb64,LN_des_ede3_ofb64); |
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| 278 | BIO_printf(bio_err," -%-4s (%s)\n", |
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| 279 | "des3", LN_des_ede3_cbc); |
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| 280 | |
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| 281 | #ifndef NO_IDEA |
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| 282 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 283 | LN_idea_ecb, LN_idea_cbc, |
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| 284 | LN_idea_cfb64, LN_idea_ofb64); |
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| 285 | BIO_printf(bio_err," -%-4s (%s)\n","idea",LN_idea_cbc); |
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| 286 | #endif |
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| 287 | #ifndef NO_RC2 |
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| 288 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 289 | LN_rc2_ecb, LN_rc2_cbc, |
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| 290 | LN_rc2_cfb64, LN_rc2_ofb64); |
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| 291 | BIO_printf(bio_err," -%-4s (%s)\n","rc2", LN_rc2_cbc); |
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| 292 | #endif |
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| 293 | #ifndef NO_BF |
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| 294 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 295 | LN_bf_ecb, LN_bf_cbc, |
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| 296 | LN_bf_cfb64, LN_bf_ofb64); |
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| 297 | BIO_printf(bio_err," -%-4s (%s)\n","bf", LN_bf_cbc); |
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| 298 | #endif |
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| 299 | #ifndef NO_CAST |
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| 300 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 301 | LN_cast5_ecb, LN_cast5_cbc, |
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| 302 | LN_cast5_cfb64, LN_cast5_ofb64); |
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| 303 | BIO_printf(bio_err," -%-4s (%s)\n","cast", LN_cast5_cbc); |
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| 304 | #endif |
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| 305 | #ifndef NO_RC5 |
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| 306 | BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s", |
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| 307 | LN_rc5_ecb, LN_rc5_cbc, |
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| 308 | LN_rc5_cfb64, LN_rc5_ofb64); |
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| 309 | BIO_printf(bio_err," -%-4s (%s)\n","rc5", LN_rc5_cbc); |
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| 310 | #endif |
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| 311 | goto end; |
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| 312 | } |
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| 313 | argc--; |
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| 314 | argv++; |
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| 315 | } |
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| 316 | |
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| 317 | if (bufsize != NULL) |
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| 318 | { |
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| 319 | unsigned long n; |
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| 320 | |
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| 321 | for (n=0; *bufsize; bufsize++) |
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| 322 | { |
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| 323 | i= *bufsize; |
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| 324 | if ((i <= '9') && (i >= '0')) |
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| 325 | n=n*10+i-'0'; |
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| 326 | else if (i == 'k') |
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| 327 | { |
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| 328 | n*=1024; |
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| 329 | bufsize++; |
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| 330 | break; |
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| 331 | } |
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| 332 | } |
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| 333 | if (*bufsize != '\0') |
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| 334 | { |
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| 335 | BIO_printf(bio_err,"invalid 'bufsize' specified.\n"); |
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| 336 | goto end; |
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| 337 | } |
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| 338 | |
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| 339 | /* It must be large enough for a base64 encoded line */ |
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| 340 | if (n < 80) n=80; |
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| 341 | |
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| 342 | bsize=(int)n; |
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| 343 | if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize); |
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| 344 | } |
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| 345 | |
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| 346 | strbuf=OPENSSL_malloc(SIZE); |
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| 347 | buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize)); |
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| 348 | if ((buff == NULL) || (strbuf == NULL)) |
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| 349 | { |
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| 350 | BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize)); |
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| 351 | goto end; |
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| 352 | } |
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| 353 | |
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| 354 | in=BIO_new(BIO_s_file()); |
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| 355 | out=BIO_new(BIO_s_file()); |
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| 356 | if ((in == NULL) || (out == NULL)) |
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| 357 | { |
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| 358 | ERR_print_errors(bio_err); |
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| 359 | goto end; |
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| 360 | } |
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| 361 | if (debug) |
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| 362 | { |
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| 363 | BIO_set_callback(in,BIO_debug_callback); |
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| 364 | BIO_set_callback(out,BIO_debug_callback); |
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| 365 | BIO_set_callback_arg(in,bio_err); |
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| 366 | BIO_set_callback_arg(out,bio_err); |
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| 367 | } |
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| 368 | |
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| 369 | if (inf == NULL) |
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| 370 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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| 371 | else |
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| 372 | { |
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| 373 | if (BIO_read_filename(in,inf) <= 0) |
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| 374 | { |
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| 375 | perror(inf); |
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| 376 | goto end; |
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| 377 | } |
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| 378 | } |
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| 379 | |
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| 380 | if(!str && passarg) { |
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| 381 | if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { |
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| 382 | BIO_printf(bio_err, "Error getting password\n"); |
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| 383 | goto end; |
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| 384 | } |
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| 385 | str = pass; |
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| 386 | } |
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| 387 | |
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| 388 | if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) |
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| 389 | { |
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| 390 | for (;;) |
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| 391 | { |
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| 392 | char buf[200]; |
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| 393 | |
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| 394 | sprintf(buf,"enter %s %s password:", |
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| 395 | OBJ_nid2ln(EVP_CIPHER_nid(cipher)), |
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| 396 | (enc)?"encryption":"decryption"); |
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| 397 | strbuf[0]='\0'; |
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| 398 | i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc); |
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| 399 | if (i == 0) |
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| 400 | { |
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| 401 | if (strbuf[0] == '\0') |
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| 402 | { |
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| 403 | ret=1; |
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| 404 | goto end; |
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| 405 | } |
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| 406 | str=strbuf; |
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| 407 | break; |
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| 408 | } |
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| 409 | if (i < 0) |
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| 410 | { |
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| 411 | BIO_printf(bio_err,"bad password read\n"); |
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| 412 | goto end; |
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| 413 | } |
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| 414 | } |
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| 415 | } |
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| 416 | |
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| 417 | |
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| 418 | if (outf == NULL) |
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| 419 | { |
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| 420 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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| 421 | #ifdef VMS |
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| 422 | { |
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| 423 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
|---|
| 424 | out = BIO_push(tmpbio, out); |
|---|
| 425 | } |
|---|
| 426 | #endif |
|---|
| 427 | } |
|---|
| 428 | else |
|---|
| 429 | { |
|---|
| 430 | if (BIO_write_filename(out,outf) <= 0) |
|---|
| 431 | { |
|---|
| 432 | perror(outf); |
|---|
| 433 | goto end; |
|---|
| 434 | } |
|---|
| 435 | } |
|---|
| 436 | |
|---|
| 437 | rbio=in; |
|---|
| 438 | wbio=out; |
|---|
| 439 | |
|---|
| 440 | if (base64) |
|---|
| 441 | { |
|---|
| 442 | if ((b64=BIO_new(BIO_f_base64())) == NULL) |
|---|
| 443 | goto end; |
|---|
| 444 | if (debug) |
|---|
| 445 | { |
|---|
| 446 | BIO_set_callback(b64,BIO_debug_callback); |
|---|
| 447 | BIO_set_callback_arg(b64,bio_err); |
|---|
| 448 | } |
|---|
| 449 | if (olb64) |
|---|
| 450 | BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL); |
|---|
| 451 | if (enc) |
|---|
| 452 | wbio=BIO_push(b64,wbio); |
|---|
| 453 | else |
|---|
| 454 | rbio=BIO_push(b64,rbio); |
|---|
| 455 | } |
|---|
| 456 | |
|---|
| 457 | if (cipher != NULL) |
|---|
| 458 | { |
|---|
| 459 | if (str != NULL) |
|---|
| 460 | { |
|---|
| 461 | /* Salt handling: if encrypting generate a salt and |
|---|
| 462 | * write to output BIO. If decrypting read salt from |
|---|
| 463 | * input BIO. |
|---|
| 464 | */ |
|---|
| 465 | unsigned char *sptr; |
|---|
| 466 | if(nosalt) sptr = NULL; |
|---|
| 467 | else { |
|---|
| 468 | if(enc) { |
|---|
| 469 | if(hsalt) { |
|---|
| 470 | if(!set_hex(hsalt,salt,PKCS5_SALT_LEN)) { |
|---|
| 471 | BIO_printf(bio_err, |
|---|
| 472 | "invalid hex salt value\n"); |
|---|
| 473 | goto end; |
|---|
| 474 | } |
|---|
| 475 | } else if (RAND_pseudo_bytes(salt, PKCS5_SALT_LEN) < 0) |
|---|
| 476 | goto end; |
|---|
| 477 | /* If -P option then don't bother writing */ |
|---|
| 478 | if((printkey != 2) |
|---|
| 479 | && (BIO_write(wbio,magic, |
|---|
| 480 | sizeof magic-1) != sizeof magic-1 |
|---|
| 481 | || BIO_write(wbio, |
|---|
| 482 | (char *)salt, |
|---|
| 483 | PKCS5_SALT_LEN) != PKCS5_SALT_LEN)) { |
|---|
| 484 | BIO_printf(bio_err,"error writing output file\n"); |
|---|
| 485 | goto end; |
|---|
| 486 | } |
|---|
| 487 | } else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf |
|---|
| 488 | || BIO_read(rbio, |
|---|
| 489 | (unsigned char *)salt, |
|---|
| 490 | PKCS5_SALT_LEN) != PKCS5_SALT_LEN) { |
|---|
| 491 | BIO_printf(bio_err,"error reading input file\n"); |
|---|
| 492 | goto end; |
|---|
| 493 | } else if(memcmp(mbuf,magic,sizeof magic-1)) { |
|---|
| 494 | BIO_printf(bio_err,"bad magic number\n"); |
|---|
| 495 | goto end; |
|---|
| 496 | } |
|---|
| 497 | |
|---|
| 498 | sptr = salt; |
|---|
| 499 | } |
|---|
| 500 | |
|---|
| 501 | EVP_BytesToKey(cipher,EVP_md5(),sptr, |
|---|
| 502 | (unsigned char *)str, |
|---|
| 503 | strlen(str),1,key,iv); |
|---|
| 504 | /* zero the complete buffer or the string |
|---|
| 505 | * passed from the command line |
|---|
| 506 | * bug picked up by |
|---|
| 507 | * Larry J. Hughes Jr. <hughes@indiana.edu> */ |
|---|
| 508 | if (str == strbuf) |
|---|
| 509 | memset(str,0,SIZE); |
|---|
| 510 | else |
|---|
| 511 | memset(str,0,strlen(str)); |
|---|
| 512 | } |
|---|
| 513 | if ((hiv != NULL) && !set_hex(hiv,iv,8)) |
|---|
| 514 | { |
|---|
| 515 | BIO_printf(bio_err,"invalid hex iv value\n"); |
|---|
| 516 | goto end; |
|---|
| 517 | } |
|---|
| 518 | if ((hkey != NULL) && !set_hex(hkey,key,24)) |
|---|
| 519 | { |
|---|
| 520 | BIO_printf(bio_err,"invalid hex key value\n"); |
|---|
| 521 | goto end; |
|---|
| 522 | } |
|---|
| 523 | |
|---|
| 524 | if ((benc=BIO_new(BIO_f_cipher())) == NULL) |
|---|
| 525 | goto end; |
|---|
| 526 | BIO_set_cipher(benc,cipher,key,iv,enc); |
|---|
| 527 | if (debug) |
|---|
| 528 | { |
|---|
| 529 | BIO_set_callback(benc,BIO_debug_callback); |
|---|
| 530 | BIO_set_callback_arg(benc,bio_err); |
|---|
| 531 | } |
|---|
| 532 | |
|---|
| 533 | if (printkey) |
|---|
| 534 | { |
|---|
| 535 | if (!nosalt) |
|---|
| 536 | { |
|---|
| 537 | printf("salt="); |
|---|
| 538 | for (i=0; i<PKCS5_SALT_LEN; i++) |
|---|
| 539 | printf("%02X",salt[i]); |
|---|
| 540 | printf("\n"); |
|---|
| 541 | } |
|---|
| 542 | if (cipher->key_len > 0) |
|---|
| 543 | { |
|---|
| 544 | printf("key="); |
|---|
| 545 | for (i=0; i<cipher->key_len; i++) |
|---|
| 546 | printf("%02X",key[i]); |
|---|
| 547 | printf("\n"); |
|---|
| 548 | } |
|---|
| 549 | if (cipher->iv_len > 0) |
|---|
| 550 | { |
|---|
| 551 | printf("iv ="); |
|---|
| 552 | for (i=0; i<cipher->iv_len; i++) |
|---|
| 553 | printf("%02X",iv[i]); |
|---|
| 554 | printf("\n"); |
|---|
| 555 | } |
|---|
| 556 | if (printkey == 2) |
|---|
| 557 | { |
|---|
| 558 | ret=0; |
|---|
| 559 | goto end; |
|---|
| 560 | } |
|---|
| 561 | } |
|---|
| 562 | } |
|---|
| 563 | |
|---|
| 564 | /* Only encrypt/decrypt as we write the file */ |
|---|
| 565 | if (benc != NULL) |
|---|
| 566 | wbio=BIO_push(benc,wbio); |
|---|
| 567 | |
|---|
| 568 | for (;;) |
|---|
| 569 | { |
|---|
| 570 | inl=BIO_read(rbio,(char *)buff,bsize); |
|---|
| 571 | if (inl <= 0) break; |
|---|
| 572 | if (BIO_write(wbio,(char *)buff,inl) != inl) |
|---|
| 573 | { |
|---|
| 574 | BIO_printf(bio_err,"error writing output file\n"); |
|---|
| 575 | goto end; |
|---|
| 576 | } |
|---|
| 577 | } |
|---|
| 578 | if (!BIO_flush(wbio)) |
|---|
| 579 | { |
|---|
| 580 | BIO_printf(bio_err,"bad decrypt\n"); |
|---|
| 581 | goto end; |
|---|
| 582 | } |
|---|
| 583 | |
|---|
| 584 | ret=0; |
|---|
| 585 | if (verbose) |
|---|
| 586 | { |
|---|
| 587 | BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in)); |
|---|
| 588 | BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out)); |
|---|
| 589 | } |
|---|
| 590 | end: |
|---|
| 591 | ERR_print_errors(bio_err); |
|---|
| 592 | if (strbuf != NULL) OPENSSL_free(strbuf); |
|---|
| 593 | if (buff != NULL) OPENSSL_free(buff); |
|---|
| 594 | if (in != NULL) BIO_free(in); |
|---|
| 595 | if (out != NULL) BIO_free_all(out); |
|---|
| 596 | if (benc != NULL) BIO_free(benc); |
|---|
| 597 | if (b64 != NULL) BIO_free(b64); |
|---|
| 598 | if(pass) OPENSSL_free(pass); |
|---|
| 599 | EXIT(ret); |
|---|
| 600 | } |
|---|
| 601 | |
|---|
| 602 | int set_hex(char *in, unsigned char *out, int size) |
|---|
| 603 | { |
|---|
| 604 | int i,n; |
|---|
| 605 | unsigned char j; |
|---|
| 606 | |
|---|
| 607 | n=strlen(in); |
|---|
| 608 | if (n > (size*2)) |
|---|
| 609 | { |
|---|
| 610 | BIO_printf(bio_err,"hex string is too long\n"); |
|---|
| 611 | return(0); |
|---|
| 612 | } |
|---|
| 613 | memset(out,0,size); |
|---|
| 614 | for (i=0; i<n; i++) |
|---|
| 615 | { |
|---|
| 616 | j=(unsigned char)*in; |
|---|
| 617 | *(in++)='\0'; |
|---|
| 618 | if (j == 0) break; |
|---|
| 619 | if ((j >= '0') && (j <= '9')) |
|---|
| 620 | j-='0'; |
|---|
| 621 | else if ((j >= 'A') && (j <= 'F')) |
|---|
| 622 | j=j-'A'+10; |
|---|
| 623 | else if ((j >= 'a') && (j <= 'f')) |
|---|
| 624 | j=j-'a'+10; |
|---|
| 625 | else |
|---|
| 626 | { |
|---|
| 627 | BIO_printf(bio_err,"non-hex digit\n"); |
|---|
| 628 | return(0); |
|---|
| 629 | } |
|---|
| 630 | if (i&1) |
|---|
| 631 | out[i/2]|=j; |
|---|
| 632 | else |
|---|
| 633 | out[i/2]=(j<<4); |
|---|
| 634 | } |
|---|
| 635 | return(1); |
|---|
| 636 | } |
|---|
