[15529] | 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 | #include <openssl/pem.h> |
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[18441] | 70 | #include <ctype.h> |
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[15529] | 71 | |
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| 72 | int set_hex(char *in,unsigned char *out,int size); |
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| 73 | #undef SIZE |
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| 74 | #undef BSIZE |
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| 75 | #undef PROG |
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| 76 | |
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| 77 | #define SIZE (512) |
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| 78 | #define BSIZE (8*1024) |
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| 79 | #define PROG enc_main |
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| 80 | |
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[18441] | 81 | static void show_ciphers(const OBJ_NAME *name,void *bio_) |
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| 82 | { |
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| 83 | BIO *bio=bio_; |
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| 84 | static int n; |
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| 85 | |
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| 86 | if(!islower((unsigned char)*name->name)) |
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| 87 | return; |
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| 88 | |
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| 89 | BIO_printf(bio,"-%-25s",name->name); |
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| 90 | if(++n == 3) |
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| 91 | { |
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| 92 | BIO_printf(bio,"\n"); |
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| 93 | n=0; |
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| 94 | } |
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| 95 | else |
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| 96 | BIO_printf(bio," "); |
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| 97 | } |
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| 98 | |
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[15529] | 99 | int MAIN(int, char **); |
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| 100 | |
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| 101 | int MAIN(int argc, char **argv) |
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| 102 | { |
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[19842] | 103 | #ifndef OPENSSL_NO_ENGINE |
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[18441] | 104 | ENGINE *e = NULL; |
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[19842] | 105 | #endif |
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[15529] | 106 | static const char magic[]="Salted__"; |
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[18441] | 107 | char mbuf[sizeof magic-1]; |
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[15529] | 108 | char *strbuf=NULL; |
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| 109 | unsigned char *buff=NULL,*bufsize=NULL; |
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| 110 | int bsize=BSIZE,verbose=0; |
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| 111 | int ret=1,inl; |
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[18441] | 112 | int nopad = 0; |
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| 113 | unsigned char key[EVP_MAX_KEY_LENGTH],iv[EVP_MAX_IV_LENGTH]; |
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[15529] | 114 | unsigned char salt[PKCS5_SALT_LEN]; |
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| 115 | char *str=NULL, *passarg = NULL, *pass = NULL; |
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| 116 | char *hkey=NULL,*hiv=NULL,*hsalt = NULL; |
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| 117 | int enc=1,printkey=0,i,base64=0; |
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| 118 | int debug=0,olb64=0,nosalt=0; |
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| 119 | const EVP_CIPHER *cipher=NULL,*c; |
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| 120 | char *inf=NULL,*outf=NULL; |
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| 121 | BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL; |
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[18441] | 122 | #define PROG_NAME_SIZE 39 |
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| 123 | char pname[PROG_NAME_SIZE+1]; |
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[19842] | 124 | #ifndef OPENSSL_NO_ENGINE |
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[18441] | 125 | char *engine = NULL; |
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[19842] | 126 | #endif |
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[15529] | 127 | |
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| 128 | apps_startup(); |
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| 129 | |
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| 130 | if (bio_err == NULL) |
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| 131 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
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| 132 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
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| 133 | |
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[18441] | 134 | if (!load_config(bio_err, NULL)) |
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| 135 | goto end; |
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| 136 | |
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[15529] | 137 | /* first check the program name */ |
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[18441] | 138 | program_name(argv[0],pname,sizeof pname); |
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[15529] | 139 | if (strcmp(pname,"base64") == 0) |
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| 140 | base64=1; |
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| 141 | |
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| 142 | cipher=EVP_get_cipherbyname(pname); |
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| 143 | if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0)) |
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| 144 | { |
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| 145 | BIO_printf(bio_err,"%s is an unknown cipher\n",pname); |
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| 146 | goto bad; |
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| 147 | } |
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| 148 | |
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| 149 | argc--; |
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| 150 | argv++; |
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| 151 | while (argc >= 1) |
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| 152 | { |
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| 153 | if (strcmp(*argv,"-e") == 0) |
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| 154 | enc=1; |
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| 155 | else if (strcmp(*argv,"-in") == 0) |
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| 156 | { |
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| 157 | if (--argc < 1) goto bad; |
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| 158 | inf= *(++argv); |
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| 159 | } |
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| 160 | else if (strcmp(*argv,"-out") == 0) |
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| 161 | { |
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| 162 | if (--argc < 1) goto bad; |
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| 163 | outf= *(++argv); |
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| 164 | } |
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| 165 | else if (strcmp(*argv,"-pass") == 0) |
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| 166 | { |
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| 167 | if (--argc < 1) goto bad; |
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| 168 | passarg= *(++argv); |
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| 169 | } |
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[19842] | 170 | #ifndef OPENSSL_NO_ENGINE |
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[18441] | 171 | else if (strcmp(*argv,"-engine") == 0) |
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| 172 | { |
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| 173 | if (--argc < 1) goto bad; |
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| 174 | engine= *(++argv); |
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| 175 | } |
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[19842] | 176 | #endif |
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[15529] | 177 | else if (strcmp(*argv,"-d") == 0) |
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| 178 | enc=0; |
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| 179 | else if (strcmp(*argv,"-p") == 0) |
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| 180 | printkey=1; |
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| 181 | else if (strcmp(*argv,"-v") == 0) |
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| 182 | verbose=1; |
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[18441] | 183 | else if (strcmp(*argv,"-nopad") == 0) |
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| 184 | nopad=1; |
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[15529] | 185 | else if (strcmp(*argv,"-salt") == 0) |
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| 186 | nosalt=0; |
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| 187 | else if (strcmp(*argv,"-nosalt") == 0) |
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| 188 | nosalt=1; |
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| 189 | else if (strcmp(*argv,"-debug") == 0) |
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| 190 | debug=1; |
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| 191 | else if (strcmp(*argv,"-P") == 0) |
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| 192 | printkey=2; |
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| 193 | else if (strcmp(*argv,"-A") == 0) |
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| 194 | olb64=1; |
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| 195 | else if (strcmp(*argv,"-a") == 0) |
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| 196 | base64=1; |
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| 197 | else if (strcmp(*argv,"-base64") == 0) |
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| 198 | base64=1; |
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| 199 | else if (strcmp(*argv,"-bufsize") == 0) |
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| 200 | { |
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| 201 | if (--argc < 1) goto bad; |
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| 202 | bufsize=(unsigned char *)*(++argv); |
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| 203 | } |
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| 204 | else if (strcmp(*argv,"-k") == 0) |
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| 205 | { |
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| 206 | if (--argc < 1) goto bad; |
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| 207 | str= *(++argv); |
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| 208 | } |
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| 209 | else if (strcmp(*argv,"-kfile") == 0) |
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| 210 | { |
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| 211 | static char buf[128]; |
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| 212 | FILE *infile; |
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| 213 | char *file; |
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| 214 | |
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| 215 | if (--argc < 1) goto bad; |
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| 216 | file= *(++argv); |
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| 217 | infile=fopen(file,"r"); |
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| 218 | if (infile == NULL) |
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| 219 | { |
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| 220 | BIO_printf(bio_err,"unable to read key from '%s'\n", |
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| 221 | file); |
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| 222 | goto bad; |
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| 223 | } |
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| 224 | buf[0]='\0'; |
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[18441] | 225 | fgets(buf,sizeof buf,infile); |
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[15529] | 226 | fclose(infile); |
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| 227 | i=strlen(buf); |
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| 228 | if ((i > 0) && |
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| 229 | ((buf[i-1] == '\n') || (buf[i-1] == '\r'))) |
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| 230 | buf[--i]='\0'; |
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| 231 | if ((i > 0) && |
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| 232 | ((buf[i-1] == '\n') || (buf[i-1] == '\r'))) |
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| 233 | buf[--i]='\0'; |
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| 234 | if (i < 1) |
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| 235 | { |
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| 236 | BIO_printf(bio_err,"zero length password\n"); |
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| 237 | goto bad; |
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| 238 | } |
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| 239 | str=buf; |
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| 240 | } |
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| 241 | else if (strcmp(*argv,"-K") == 0) |
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| 242 | { |
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| 243 | if (--argc < 1) goto bad; |
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| 244 | hkey= *(++argv); |
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| 245 | } |
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| 246 | else if (strcmp(*argv,"-S") == 0) |
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| 247 | { |
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| 248 | if (--argc < 1) goto bad; |
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| 249 | hsalt= *(++argv); |
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| 250 | } |
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| 251 | else if (strcmp(*argv,"-iv") == 0) |
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| 252 | { |
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| 253 | if (--argc < 1) goto bad; |
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| 254 | hiv= *(++argv); |
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| 255 | } |
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| 256 | else if ((argv[0][0] == '-') && |
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| 257 | ((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) |
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| 258 | { |
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| 259 | cipher=c; |
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| 260 | } |
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| 261 | else if (strcmp(*argv,"-none") == 0) |
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| 262 | cipher=NULL; |
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| 263 | else |
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| 264 | { |
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| 265 | BIO_printf(bio_err,"unknown option '%s'\n",*argv); |
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| 266 | bad: |
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| 267 | BIO_printf(bio_err,"options are\n"); |
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| 268 | BIO_printf(bio_err,"%-14s input file\n","-in <file>"); |
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| 269 | BIO_printf(bio_err,"%-14s output file\n","-out <file>"); |
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| 270 | BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>"); |
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| 271 | BIO_printf(bio_err,"%-14s encrypt\n","-e"); |
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| 272 | BIO_printf(bio_err,"%-14s decrypt\n","-d"); |
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| 273 | BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64"); |
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| 274 | BIO_printf(bio_err,"%-14s key is the next argument\n","-k"); |
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| 275 | BIO_printf(bio_err,"%-14s key is the first line of the file argument\n","-kfile"); |
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| 276 | BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv"); |
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| 277 | BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]"); |
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| 278 | BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>"); |
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[19842] | 279 | #ifndef OPENSSL_NO_ENGINE |
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[18441] | 280 | BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e"); |
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[19842] | 281 | #endif |
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[15529] | 282 | |
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| 283 | BIO_printf(bio_err,"Cipher Types\n"); |
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[18441] | 284 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
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| 285 | show_ciphers, |
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| 286 | bio_err); |
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| 287 | BIO_printf(bio_err,"\n"); |
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[15529] | 288 | |
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| 289 | goto end; |
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| 290 | } |
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| 291 | argc--; |
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| 292 | argv++; |
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| 293 | } |
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| 294 | |
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[19842] | 295 | #ifndef OPENSSL_NO_ENGINE |
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[18441] | 296 | e = setup_engine(bio_err, engine, 0); |
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[19842] | 297 | #endif |
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[18441] | 298 | |
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[15529] | 299 | if (bufsize != NULL) |
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| 300 | { |
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| 301 | unsigned long n; |
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| 302 | |
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| 303 | for (n=0; *bufsize; bufsize++) |
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| 304 | { |
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| 305 | i= *bufsize; |
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| 306 | if ((i <= '9') && (i >= '0')) |
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| 307 | n=n*10+i-'0'; |
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| 308 | else if (i == 'k') |
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| 309 | { |
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| 310 | n*=1024; |
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| 311 | bufsize++; |
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| 312 | break; |
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| 313 | } |
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| 314 | } |
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| 315 | if (*bufsize != '\0') |
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| 316 | { |
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| 317 | BIO_printf(bio_err,"invalid 'bufsize' specified.\n"); |
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| 318 | goto end; |
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| 319 | } |
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| 320 | |
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| 321 | /* It must be large enough for a base64 encoded line */ |
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| 322 | if (n < 80) n=80; |
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| 323 | |
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| 324 | bsize=(int)n; |
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| 325 | if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize); |
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| 326 | } |
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| 327 | |
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| 328 | strbuf=OPENSSL_malloc(SIZE); |
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| 329 | buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize)); |
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| 330 | if ((buff == NULL) || (strbuf == NULL)) |
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| 331 | { |
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| 332 | BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize)); |
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| 333 | goto end; |
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| 334 | } |
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| 335 | |
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| 336 | in=BIO_new(BIO_s_file()); |
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| 337 | out=BIO_new(BIO_s_file()); |
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| 338 | if ((in == NULL) || (out == NULL)) |
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| 339 | { |
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| 340 | ERR_print_errors(bio_err); |
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| 341 | goto end; |
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| 342 | } |
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| 343 | if (debug) |
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| 344 | { |
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| 345 | BIO_set_callback(in,BIO_debug_callback); |
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| 346 | BIO_set_callback(out,BIO_debug_callback); |
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| 347 | BIO_set_callback_arg(in,bio_err); |
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| 348 | BIO_set_callback_arg(out,bio_err); |
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| 349 | } |
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| 350 | |
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| 351 | if (inf == NULL) |
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| 352 | BIO_set_fp(in,stdin,BIO_NOCLOSE); |
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| 353 | else |
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| 354 | { |
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| 355 | if (BIO_read_filename(in,inf) <= 0) |
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| 356 | { |
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| 357 | perror(inf); |
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| 358 | goto end; |
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| 359 | } |
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| 360 | } |
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| 361 | |
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| 362 | if(!str && passarg) { |
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| 363 | if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { |
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| 364 | BIO_printf(bio_err, "Error getting password\n"); |
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| 365 | goto end; |
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| 366 | } |
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| 367 | str = pass; |
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| 368 | } |
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| 369 | |
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| 370 | if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) |
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| 371 | { |
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| 372 | for (;;) |
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| 373 | { |
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| 374 | char buf[200]; |
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| 375 | |
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| 376 | sprintf(buf,"enter %s %s password:", |
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| 377 | OBJ_nid2ln(EVP_CIPHER_nid(cipher)), |
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| 378 | (enc)?"encryption":"decryption"); |
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| 379 | strbuf[0]='\0'; |
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| 380 | i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc); |
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| 381 | if (i == 0) |
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| 382 | { |
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| 383 | if (strbuf[0] == '\0') |
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| 384 | { |
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| 385 | ret=1; |
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| 386 | goto end; |
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| 387 | } |
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| 388 | str=strbuf; |
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| 389 | break; |
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| 390 | } |
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| 391 | if (i < 0) |
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| 392 | { |
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| 393 | BIO_printf(bio_err,"bad password read\n"); |
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| 394 | goto end; |
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| 395 | } |
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| 396 | } |
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| 397 | } |
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| 398 | |
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| 399 | |
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| 400 | if (outf == NULL) |
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| 401 | { |
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| 402 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
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[18441] | 403 | #ifdef OPENSSL_SYS_VMS |
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[15529] | 404 | { |
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| 405 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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| 406 | out = BIO_push(tmpbio, out); |
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| 407 | } |
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| 408 | #endif |
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| 409 | } |
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| 410 | else |
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| 411 | { |
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| 412 | if (BIO_write_filename(out,outf) <= 0) |
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| 413 | { |
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| 414 | perror(outf); |
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| 415 | goto end; |
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| 416 | } |
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| 417 | } |
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| 418 | |
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| 419 | rbio=in; |
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| 420 | wbio=out; |
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| 421 | |
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| 422 | if (base64) |
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| 423 | { |
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| 424 | if ((b64=BIO_new(BIO_f_base64())) == NULL) |
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| 425 | goto end; |
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| 426 | if (debug) |
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| 427 | { |
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| 428 | BIO_set_callback(b64,BIO_debug_callback); |
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| 429 | BIO_set_callback_arg(b64,bio_err); |
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| 430 | } |
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| 431 | if (olb64) |
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| 432 | BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL); |
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| 433 | if (enc) |
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| 434 | wbio=BIO_push(b64,wbio); |
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| 435 | else |
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| 436 | rbio=BIO_push(b64,rbio); |
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| 437 | } |
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| 438 | |
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| 439 | if (cipher != NULL) |
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| 440 | { |
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[18441] | 441 | /* Note that str is NULL if a key was passed on the command |
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| 442 | * line, so we get no salt in that case. Is this a bug? |
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| 443 | */ |
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[15529] | 444 | if (str != NULL) |
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| 445 | { |
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| 446 | /* Salt handling: if encrypting generate a salt and |
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| 447 | * write to output BIO. If decrypting read salt from |
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| 448 | * input BIO. |
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| 449 | */ |
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| 450 | unsigned char *sptr; |
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| 451 | if(nosalt) sptr = NULL; |
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| 452 | else { |
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| 453 | if(enc) { |
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| 454 | if(hsalt) { |
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[18441] | 455 | if(!set_hex(hsalt,salt,sizeof salt)) { |
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[15529] | 456 | BIO_printf(bio_err, |
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| 457 | "invalid hex salt value\n"); |
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| 458 | goto end; |
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| 459 | } |
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[18441] | 460 | } else if (RAND_pseudo_bytes(salt, sizeof salt) < 0) |
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[15529] | 461 | goto end; |
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| 462 | /* If -P option then don't bother writing */ |
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| 463 | if((printkey != 2) |
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| 464 | && (BIO_write(wbio,magic, |
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| 465 | sizeof magic-1) != sizeof magic-1 |
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| 466 | || BIO_write(wbio, |
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| 467 | (char *)salt, |
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[18441] | 468 | sizeof salt) != sizeof salt)) { |
---|
[15529] | 469 | BIO_printf(bio_err,"error writing output file\n"); |
---|
| 470 | goto end; |
---|
| 471 | } |
---|
| 472 | } else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf |
---|
| 473 | || BIO_read(rbio, |
---|
| 474 | (unsigned char *)salt, |
---|
[18441] | 475 | sizeof salt) != sizeof salt) { |
---|
[15529] | 476 | BIO_printf(bio_err,"error reading input file\n"); |
---|
| 477 | goto end; |
---|
| 478 | } else if(memcmp(mbuf,magic,sizeof magic-1)) { |
---|
| 479 | BIO_printf(bio_err,"bad magic number\n"); |
---|
| 480 | goto end; |
---|
| 481 | } |
---|
| 482 | |
---|
| 483 | sptr = salt; |
---|
| 484 | } |
---|
| 485 | |
---|
| 486 | EVP_BytesToKey(cipher,EVP_md5(),sptr, |
---|
| 487 | (unsigned char *)str, |
---|
| 488 | strlen(str),1,key,iv); |
---|
| 489 | /* zero the complete buffer or the string |
---|
| 490 | * passed from the command line |
---|
| 491 | * bug picked up by |
---|
| 492 | * Larry J. Hughes Jr. <hughes@indiana.edu> */ |
---|
| 493 | if (str == strbuf) |
---|
[18441] | 494 | OPENSSL_cleanse(str,SIZE); |
---|
[15529] | 495 | else |
---|
[18441] | 496 | OPENSSL_cleanse(str,strlen(str)); |
---|
[15529] | 497 | } |
---|
[18441] | 498 | if ((hiv != NULL) && !set_hex(hiv,iv,sizeof iv)) |
---|
[15529] | 499 | { |
---|
| 500 | BIO_printf(bio_err,"invalid hex iv value\n"); |
---|
| 501 | goto end; |
---|
| 502 | } |
---|
[18441] | 503 | if ((hiv == NULL) && (str == NULL)) |
---|
[15529] | 504 | { |
---|
[18441] | 505 | /* No IV was explicitly set and no IV was generated |
---|
| 506 | * during EVP_BytesToKey. Hence the IV is undefined, |
---|
| 507 | * making correct decryption impossible. */ |
---|
| 508 | BIO_printf(bio_err, "iv undefined\n"); |
---|
| 509 | goto end; |
---|
| 510 | } |
---|
| 511 | if ((hkey != NULL) && !set_hex(hkey,key,sizeof key)) |
---|
| 512 | { |
---|
[15529] | 513 | BIO_printf(bio_err,"invalid hex key value\n"); |
---|
| 514 | goto end; |
---|
| 515 | } |
---|
| 516 | |
---|
| 517 | if ((benc=BIO_new(BIO_f_cipher())) == NULL) |
---|
| 518 | goto end; |
---|
| 519 | BIO_set_cipher(benc,cipher,key,iv,enc); |
---|
[18441] | 520 | if (nopad) |
---|
| 521 | { |
---|
| 522 | EVP_CIPHER_CTX *ctx; |
---|
| 523 | BIO_get_cipher_ctx(benc, &ctx); |
---|
| 524 | EVP_CIPHER_CTX_set_padding(ctx, 0); |
---|
| 525 | } |
---|
[15529] | 526 | if (debug) |
---|
| 527 | { |
---|
| 528 | BIO_set_callback(benc,BIO_debug_callback); |
---|
| 529 | BIO_set_callback_arg(benc,bio_err); |
---|
| 530 | } |
---|
| 531 | |
---|
| 532 | if (printkey) |
---|
| 533 | { |
---|
| 534 | if (!nosalt) |
---|
| 535 | { |
---|
| 536 | printf("salt="); |
---|
[18441] | 537 | for (i=0; i<sizeof salt; i++) |
---|
[15529] | 538 | printf("%02X",salt[i]); |
---|
| 539 | printf("\n"); |
---|
| 540 | } |
---|
| 541 | if (cipher->key_len > 0) |
---|
| 542 | { |
---|
| 543 | printf("key="); |
---|
| 544 | for (i=0; i<cipher->key_len; i++) |
---|
| 545 | printf("%02X",key[i]); |
---|
| 546 | printf("\n"); |
---|
| 547 | } |
---|
| 548 | if (cipher->iv_len > 0) |
---|
| 549 | { |
---|
| 550 | printf("iv ="); |
---|
| 551 | for (i=0; i<cipher->iv_len; i++) |
---|
| 552 | printf("%02X",iv[i]); |
---|
| 553 | printf("\n"); |
---|
| 554 | } |
---|
| 555 | if (printkey == 2) |
---|
| 556 | { |
---|
| 557 | ret=0; |
---|
| 558 | goto end; |
---|
| 559 | } |
---|
| 560 | } |
---|
| 561 | } |
---|
| 562 | |
---|
| 563 | /* Only encrypt/decrypt as we write the file */ |
---|
| 564 | if (benc != NULL) |
---|
| 565 | wbio=BIO_push(benc,wbio); |
---|
| 566 | |
---|
| 567 | for (;;) |
---|
| 568 | { |
---|
| 569 | inl=BIO_read(rbio,(char *)buff,bsize); |
---|
| 570 | if (inl <= 0) break; |
---|
| 571 | if (BIO_write(wbio,(char *)buff,inl) != inl) |
---|
| 572 | { |
---|
| 573 | BIO_printf(bio_err,"error writing output file\n"); |
---|
| 574 | goto end; |
---|
| 575 | } |
---|
| 576 | } |
---|
| 577 | if (!BIO_flush(wbio)) |
---|
| 578 | { |
---|
| 579 | BIO_printf(bio_err,"bad decrypt\n"); |
---|
| 580 | goto end; |
---|
| 581 | } |
---|
| 582 | |
---|
| 583 | ret=0; |
---|
| 584 | if (verbose) |
---|
| 585 | { |
---|
| 586 | BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in)); |
---|
| 587 | BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out)); |
---|
| 588 | } |
---|
| 589 | end: |
---|
| 590 | ERR_print_errors(bio_err); |
---|
| 591 | if (strbuf != NULL) OPENSSL_free(strbuf); |
---|
| 592 | if (buff != NULL) OPENSSL_free(buff); |
---|
| 593 | if (in != NULL) BIO_free(in); |
---|
| 594 | if (out != NULL) BIO_free_all(out); |
---|
| 595 | if (benc != NULL) BIO_free(benc); |
---|
| 596 | if (b64 != NULL) BIO_free(b64); |
---|
| 597 | if(pass) OPENSSL_free(pass); |
---|
[18441] | 598 | apps_shutdown(); |
---|
| 599 | OPENSSL_EXIT(ret); |
---|
[15529] | 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 | } |
---|