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main_repo / deps / openssl / openssl / apps / enc.c @ aa3b4b4d
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| 1 |
/* apps/enc.c */
|
|---|---|
| 2 |
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
| 3 |
* All rights reserved.
|
| 4 |
*
|
| 5 |
* This package is an SSL implementation written
|
| 6 |
* by Eric Young (eay@cryptsoft.com).
|
| 7 |
* The implementation was written so as to conform with Netscapes SSL.
|
| 8 |
*
|
| 9 |
* This library is free for commercial and non-commercial use as long as
|
| 10 |
* the following conditions are aheared to. The following conditions
|
| 11 |
* apply to all code found in this distribution, be it the RC4, RSA,
|
| 12 |
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
|
| 13 |
* included with this distribution is covered by the same copyright terms
|
| 14 |
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
|
| 15 |
*
|
| 16 |
* Copyright remains Eric Young's, and as such any Copyright notices in
|
| 17 |
* the code are not to be removed.
|
| 18 |
* If this package is used in a product, Eric Young should be given attribution
|
| 19 |
* as the author of the parts of the library used.
|
| 20 |
* This can be in the form of a textual message at program startup or
|
| 21 |
* in documentation (online or textual) provided with the package.
|
| 22 |
*
|
| 23 |
* Redistribution and use in source and binary forms, with or without
|
| 24 |
* modification, are permitted provided that the following conditions
|
| 25 |
* are met:
|
| 26 |
* 1. Redistributions of source code must retain the copyright
|
| 27 |
* notice, this list of conditions and the following disclaimer.
|
| 28 |
* 2. Redistributions in binary form must reproduce the above copyright
|
| 29 |
* notice, this list of conditions and the following disclaimer in the
|
| 30 |
* documentation and/or other materials provided with the distribution.
|
| 31 |
* 3. All advertising materials mentioning features or use of this software
|
| 32 |
* must display the following acknowledgement:
|
| 33 |
* "This product includes cryptographic software written by
|
| 34 |
* Eric Young (eay@cryptsoft.com)"
|
| 35 |
* The word 'cryptographic' can be left out if the rouines from the library
|
| 36 |
* being used are not cryptographic related :-).
|
| 37 |
* 4. If you include any Windows specific code (or a derivative thereof) from
|
| 38 |
* the apps directory (application code) you must include an acknowledgement:
|
| 39 |
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
|
| 40 |
*
|
| 41 |
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
|
| 42 |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 43 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| 44 |
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
| 45 |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 46 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
| 47 |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
| 48 |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
| 49 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
| 50 |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
| 51 |
* SUCH DAMAGE.
|
| 52 |
*
|
| 53 |
* The licence and distribution terms for any publically available version or
|
| 54 |
* derivative of this code cannot be changed. i.e. this code cannot simply be
|
| 55 |
* copied and put under another distribution licence
|
| 56 |
* [including the GNU Public Licence.]
|
| 57 |
*/
|
| 58 |
|
| 59 |
#include <stdio.h> |
| 60 |
#include <stdlib.h> |
| 61 |
#include <string.h> |
| 62 |
#include "apps.h" |
| 63 |
#include <openssl/bio.h> |
| 64 |
#include <openssl/err.h> |
| 65 |
#include <openssl/evp.h> |
| 66 |
#include <openssl/objects.h> |
| 67 |
#include <openssl/x509.h> |
| 68 |
#include <openssl/rand.h> |
| 69 |
#include <openssl/pem.h> |
| 70 |
#ifndef OPENSSL_NO_COMP
|
| 71 |
#include <openssl/comp.h> |
| 72 |
#endif
|
| 73 |
#include <ctype.h> |
| 74 |
|
| 75 |
int set_hex(char *in,unsigned char *out,int size); |
| 76 |
#undef SIZE
|
| 77 |
#undef BSIZE
|
| 78 |
#undef PROG
|
| 79 |
|
| 80 |
#define SIZE (512) |
| 81 |
#define BSIZE (8*1024) |
| 82 |
#define PROG enc_main
|
| 83 |
|
| 84 |
static void show_ciphers(const OBJ_NAME *name,void *bio_) |
| 85 |
{
|
| 86 |
BIO *bio=bio_; |
| 87 |
static int n; |
| 88 |
|
| 89 |
if(!islower((unsigned char)*name->name)) |
| 90 |
return;
|
| 91 |
|
| 92 |
BIO_printf(bio,"-%-25s",name->name);
|
| 93 |
if(++n == 3) |
| 94 |
{
|
| 95 |
BIO_printf(bio,"\n");
|
| 96 |
n=0;
|
| 97 |
} |
| 98 |
else
|
| 99 |
BIO_printf(bio," ");
|
| 100 |
} |
| 101 |
|
| 102 |
int MAIN(int, char **); |
| 103 |
|
| 104 |
int MAIN(int argc, char **argv) |
| 105 |
{
|
| 106 |
static const char magic[]="Salted__"; |
| 107 |
char mbuf[sizeof magic-1]; |
| 108 |
char *strbuf=NULL; |
| 109 |
unsigned char *buff=NULL,*bufsize=NULL; |
| 110 |
int bsize=BSIZE,verbose=0; |
| 111 |
int ret=1,inl; |
| 112 |
int nopad = 0; |
| 113 |
unsigned char key[EVP_MAX_KEY_LENGTH],iv[EVP_MAX_IV_LENGTH]; |
| 114 |
unsigned char salt[PKCS5_SALT_LEN]; |
| 115 |
char *str=NULL, *passarg = NULL, *pass = NULL; |
| 116 |
char *hkey=NULL,*hiv=NULL,*hsalt = NULL; |
| 117 |
char *md=NULL; |
| 118 |
int enc=1,printkey=0,i,base64=0; |
| 119 |
#ifdef ZLIB
|
| 120 |
int do_zlib=0; |
| 121 |
BIO *bzl = NULL;
|
| 122 |
#endif
|
| 123 |
int debug=0,olb64=0,nosalt=0; |
| 124 |
const EVP_CIPHER *cipher=NULL,*c; |
| 125 |
EVP_CIPHER_CTX *ctx = NULL;
|
| 126 |
char *inf=NULL,*outf=NULL; |
| 127 |
BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL; |
| 128 |
#define PROG_NAME_SIZE 39 |
| 129 |
char pname[PROG_NAME_SIZE+1]; |
| 130 |
#ifndef OPENSSL_NO_ENGINE
|
| 131 |
char *engine = NULL; |
| 132 |
#endif
|
| 133 |
const EVP_MD *dgst=NULL; |
| 134 |
int non_fips_allow = 0; |
| 135 |
|
| 136 |
apps_startup(); |
| 137 |
|
| 138 |
if (bio_err == NULL) |
| 139 |
if ((bio_err=BIO_new(BIO_s_file())) != NULL) |
| 140 |
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); |
| 141 |
|
| 142 |
if (!load_config(bio_err, NULL)) |
| 143 |
goto end;
|
| 144 |
|
| 145 |
/* first check the program name */
|
| 146 |
program_name(argv[0],pname,sizeof pname); |
| 147 |
if (strcmp(pname,"base64") == 0) |
| 148 |
base64=1;
|
| 149 |
#ifdef ZLIB
|
| 150 |
if (strcmp(pname,"zlib") == 0) |
| 151 |
do_zlib=1;
|
| 152 |
#endif
|
| 153 |
|
| 154 |
cipher=EVP_get_cipherbyname(pname); |
| 155 |
#ifdef ZLIB
|
| 156 |
if (!do_zlib && !base64 && (cipher == NULL) |
| 157 |
&& (strcmp(pname,"enc") != 0)) |
| 158 |
#else
|
| 159 |
if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0)) |
| 160 |
#endif
|
| 161 |
{
|
| 162 |
BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
|
| 163 |
goto bad;
|
| 164 |
} |
| 165 |
|
| 166 |
argc--; |
| 167 |
argv++; |
| 168 |
while (argc >= 1) |
| 169 |
{
|
| 170 |
if (strcmp(*argv,"-e") == 0) |
| 171 |
enc=1;
|
| 172 |
else if (strcmp(*argv,"-in") == 0) |
| 173 |
{
|
| 174 |
if (--argc < 1) goto bad; |
| 175 |
inf= *(++argv); |
| 176 |
} |
| 177 |
else if (strcmp(*argv,"-out") == 0) |
| 178 |
{
|
| 179 |
if (--argc < 1) goto bad; |
| 180 |
outf= *(++argv); |
| 181 |
} |
| 182 |
else if (strcmp(*argv,"-pass") == 0) |
| 183 |
{
|
| 184 |
if (--argc < 1) goto bad; |
| 185 |
passarg= *(++argv); |
| 186 |
} |
| 187 |
#ifndef OPENSSL_NO_ENGINE
|
| 188 |
else if (strcmp(*argv,"-engine") == 0) |
| 189 |
{
|
| 190 |
if (--argc < 1) goto bad; |
| 191 |
engine= *(++argv); |
| 192 |
} |
| 193 |
#endif
|
| 194 |
else if (strcmp(*argv,"-d") == 0) |
| 195 |
enc=0;
|
| 196 |
else if (strcmp(*argv,"-p") == 0) |
| 197 |
printkey=1;
|
| 198 |
else if (strcmp(*argv,"-v") == 0) |
| 199 |
verbose=1;
|
| 200 |
else if (strcmp(*argv,"-nopad") == 0) |
| 201 |
nopad=1;
|
| 202 |
else if (strcmp(*argv,"-salt") == 0) |
| 203 |
nosalt=0;
|
| 204 |
else if (strcmp(*argv,"-nosalt") == 0) |
| 205 |
nosalt=1;
|
| 206 |
else if (strcmp(*argv,"-debug") == 0) |
| 207 |
debug=1;
|
| 208 |
else if (strcmp(*argv,"-P") == 0) |
| 209 |
printkey=2;
|
| 210 |
else if (strcmp(*argv,"-A") == 0) |
| 211 |
olb64=1;
|
| 212 |
else if (strcmp(*argv,"-a") == 0) |
| 213 |
base64=1;
|
| 214 |
else if (strcmp(*argv,"-base64") == 0) |
| 215 |
base64=1;
|
| 216 |
#ifdef ZLIB
|
| 217 |
else if (strcmp(*argv,"-z") == 0) |
| 218 |
do_zlib=1;
|
| 219 |
#endif
|
| 220 |
else if (strcmp(*argv,"-bufsize") == 0) |
| 221 |
{
|
| 222 |
if (--argc < 1) goto bad; |
| 223 |
bufsize=(unsigned char *)*(++argv); |
| 224 |
} |
| 225 |
else if (strcmp(*argv,"-k") == 0) |
| 226 |
{
|
| 227 |
if (--argc < 1) goto bad; |
| 228 |
str= *(++argv); |
| 229 |
} |
| 230 |
else if (strcmp(*argv,"-kfile") == 0) |
| 231 |
{
|
| 232 |
static char buf[128]; |
| 233 |
FILE *infile; |
| 234 |
char *file;
|
| 235 |
|
| 236 |
if (--argc < 1) goto bad; |
| 237 |
file= *(++argv); |
| 238 |
infile=fopen(file,"r");
|
| 239 |
if (infile == NULL) |
| 240 |
{
|
| 241 |
BIO_printf(bio_err,"unable to read key from '%s'\n",
|
| 242 |
file); |
| 243 |
goto bad;
|
| 244 |
} |
| 245 |
buf[0]='\0'; |
| 246 |
if (!fgets(buf,sizeof buf,infile)) |
| 247 |
{
|
| 248 |
BIO_printf(bio_err,"unable to read key from '%s'\n",
|
| 249 |
file); |
| 250 |
goto bad;
|
| 251 |
} |
| 252 |
fclose(infile); |
| 253 |
i=strlen(buf); |
| 254 |
if ((i > 0) && |
| 255 |
((buf[i-1] == '\n') || (buf[i-1] == '\r'))) |
| 256 |
buf[--i]='\0';
|
| 257 |
if ((i > 0) && |
| 258 |
((buf[i-1] == '\n') || (buf[i-1] == '\r'))) |
| 259 |
buf[--i]='\0';
|
| 260 |
if (i < 1) |
| 261 |
{
|
| 262 |
BIO_printf(bio_err,"zero length password\n");
|
| 263 |
goto bad;
|
| 264 |
} |
| 265 |
str=buf; |
| 266 |
} |
| 267 |
else if (strcmp(*argv,"-K") == 0) |
| 268 |
{
|
| 269 |
if (--argc < 1) goto bad; |
| 270 |
hkey= *(++argv); |
| 271 |
} |
| 272 |
else if (strcmp(*argv,"-S") == 0) |
| 273 |
{
|
| 274 |
if (--argc < 1) goto bad; |
| 275 |
hsalt= *(++argv); |
| 276 |
} |
| 277 |
else if (strcmp(*argv,"-iv") == 0) |
| 278 |
{
|
| 279 |
if (--argc < 1) goto bad; |
| 280 |
hiv= *(++argv); |
| 281 |
} |
| 282 |
else if (strcmp(*argv,"-md") == 0) |
| 283 |
{
|
| 284 |
if (--argc < 1) goto bad; |
| 285 |
md= *(++argv); |
| 286 |
} |
| 287 |
else if (strcmp(*argv,"-non-fips-allow") == 0) |
| 288 |
non_fips_allow = 1;
|
| 289 |
else if ((argv[0][0] == '-') && |
| 290 |
((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) |
| 291 |
{
|
| 292 |
cipher=c; |
| 293 |
} |
| 294 |
else if (strcmp(*argv,"-none") == 0) |
| 295 |
cipher=NULL;
|
| 296 |
else
|
| 297 |
{
|
| 298 |
BIO_printf(bio_err,"unknown option '%s'\n",*argv);
|
| 299 |
bad:
|
| 300 |
BIO_printf(bio_err,"options are\n");
|
| 301 |
BIO_printf(bio_err,"%-14s input file\n","-in <file>"); |
| 302 |
BIO_printf(bio_err,"%-14s output file\n","-out <file>"); |
| 303 |
BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>"); |
| 304 |
BIO_printf(bio_err,"%-14s encrypt\n","-e"); |
| 305 |
BIO_printf(bio_err,"%-14s decrypt\n","-d"); |
| 306 |
BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64"); |
| 307 |
BIO_printf(bio_err,"%-14s passphrase is the next argument\n","-k"); |
| 308 |
BIO_printf(bio_err,"%-14s passphrase is the first line of the file argument\n","-kfile"); |
| 309 |
BIO_printf(bio_err,"%-14s the next argument is the md to use to create a key\n","-md"); |
| 310 |
BIO_printf(bio_err,"%-14s from a passphrase. One of md2, md5, sha or sha1\n",""); |
| 311 |
BIO_printf(bio_err,"%-14s salt in hex is the next argument\n","-S"); |
| 312 |
BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv"); |
| 313 |
BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]"); |
| 314 |
BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>"); |
| 315 |
BIO_printf(bio_err,"%-14s disable standard block padding\n","-nopad"); |
| 316 |
#ifndef OPENSSL_NO_ENGINE
|
| 317 |
BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e"); |
| 318 |
#endif
|
| 319 |
|
| 320 |
BIO_printf(bio_err,"Cipher Types\n");
|
| 321 |
OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
| 322 |
show_ciphers, |
| 323 |
bio_err); |
| 324 |
BIO_printf(bio_err,"\n");
|
| 325 |
|
| 326 |
goto end;
|
| 327 |
} |
| 328 |
argc--; |
| 329 |
argv++; |
| 330 |
} |
| 331 |
|
| 332 |
#ifndef OPENSSL_NO_ENGINE
|
| 333 |
setup_engine(bio_err, engine, 0);
|
| 334 |
#endif
|
| 335 |
|
| 336 |
if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER)
|
| 337 |
{
|
| 338 |
BIO_printf(bio_err, "AEAD ciphers not supported by the enc utility\n");
|
| 339 |
goto end;
|
| 340 |
} |
| 341 |
|
| 342 |
if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE))
|
| 343 |
{
|
| 344 |
BIO_printf(bio_err, "Ciphers in XTS mode are not supported by the enc utility\n");
|
| 345 |
goto end;
|
| 346 |
} |
| 347 |
|
| 348 |
if (md && (dgst=EVP_get_digestbyname(md)) == NULL) |
| 349 |
{
|
| 350 |
BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
|
| 351 |
goto end;
|
| 352 |
} |
| 353 |
|
| 354 |
if (dgst == NULL) |
| 355 |
{
|
| 356 |
dgst = EVP_md5(); |
| 357 |
} |
| 358 |
|
| 359 |
if (bufsize != NULL) |
| 360 |
{
|
| 361 |
unsigned long n; |
| 362 |
|
| 363 |
for (n=0; *bufsize; bufsize++) |
| 364 |
{
|
| 365 |
i= *bufsize; |
| 366 |
if ((i <= '9') && (i >= '0')) |
| 367 |
n=n*10+i-'0'; |
| 368 |
else if (i == 'k') |
| 369 |
{
|
| 370 |
n*=1024;
|
| 371 |
bufsize++; |
| 372 |
break;
|
| 373 |
} |
| 374 |
} |
| 375 |
if (*bufsize != '\0') |
| 376 |
{
|
| 377 |
BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
|
| 378 |
goto end;
|
| 379 |
} |
| 380 |
|
| 381 |
/* It must be large enough for a base64 encoded line */
|
| 382 |
if (base64 && n < 80) n=80; |
| 383 |
|
| 384 |
bsize=(int)n;
|
| 385 |
if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize); |
| 386 |
} |
| 387 |
|
| 388 |
strbuf=OPENSSL_malloc(SIZE); |
| 389 |
buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize)); |
| 390 |
if ((buff == NULL) || (strbuf == NULL)) |
| 391 |
{
|
| 392 |
BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize)); |
| 393 |
goto end;
|
| 394 |
} |
| 395 |
|
| 396 |
in=BIO_new(BIO_s_file()); |
| 397 |
out=BIO_new(BIO_s_file()); |
| 398 |
if ((in == NULL) || (out == NULL)) |
| 399 |
{
|
| 400 |
ERR_print_errors(bio_err); |
| 401 |
goto end;
|
| 402 |
} |
| 403 |
if (debug)
|
| 404 |
{
|
| 405 |
BIO_set_callback(in,BIO_debug_callback); |
| 406 |
BIO_set_callback(out,BIO_debug_callback); |
| 407 |
BIO_set_callback_arg(in,(char *)bio_err);
|
| 408 |
BIO_set_callback_arg(out,(char *)bio_err);
|
| 409 |
} |
| 410 |
|
| 411 |
if (inf == NULL) |
| 412 |
{
|
| 413 |
#ifndef OPENSSL_NO_SETVBUF_IONBF
|
| 414 |
if (bufsize != NULL) |
| 415 |
setvbuf(stdin, (char *)NULL, _IONBF, 0); |
| 416 |
#endif /* ndef OPENSSL_NO_SETVBUF_IONBF */ |
| 417 |
BIO_set_fp(in,stdin,BIO_NOCLOSE); |
| 418 |
} |
| 419 |
else
|
| 420 |
{
|
| 421 |
if (BIO_read_filename(in,inf) <= 0) |
| 422 |
{
|
| 423 |
perror(inf); |
| 424 |
goto end;
|
| 425 |
} |
| 426 |
} |
| 427 |
|
| 428 |
if(!str && passarg) {
|
| 429 |
if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { |
| 430 |
BIO_printf(bio_err, "Error getting password\n");
|
| 431 |
goto end;
|
| 432 |
} |
| 433 |
str = pass; |
| 434 |
} |
| 435 |
|
| 436 |
if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) |
| 437 |
{
|
| 438 |
for (;;)
|
| 439 |
{
|
| 440 |
char buf[200]; |
| 441 |
|
| 442 |
BIO_snprintf(buf,sizeof buf,"enter %s %s password:", |
| 443 |
OBJ_nid2ln(EVP_CIPHER_nid(cipher)), |
| 444 |
(enc)?"encryption":"decryption"); |
| 445 |
strbuf[0]='\0'; |
| 446 |
i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
|
| 447 |
if (i == 0) |
| 448 |
{
|
| 449 |
if (strbuf[0] == '\0') |
| 450 |
{
|
| 451 |
ret=1;
|
| 452 |
goto end;
|
| 453 |
} |
| 454 |
str=strbuf; |
| 455 |
break;
|
| 456 |
} |
| 457 |
if (i < 0) |
| 458 |
{
|
| 459 |
BIO_printf(bio_err,"bad password read\n");
|
| 460 |
goto end;
|
| 461 |
} |
| 462 |
} |
| 463 |
} |
| 464 |
|
| 465 |
|
| 466 |
if (outf == NULL) |
| 467 |
{
|
| 468 |
BIO_set_fp(out,stdout,BIO_NOCLOSE); |
| 469 |
#ifndef OPENSSL_NO_SETVBUF_IONBF
|
| 470 |
if (bufsize != NULL) |
| 471 |
setvbuf(stdout, (char *)NULL, _IONBF, 0); |
| 472 |
#endif /* ndef OPENSSL_NO_SETVBUF_IONBF */ |
| 473 |
#ifdef OPENSSL_SYS_VMS
|
| 474 |
{
|
| 475 |
BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| 476 |
out = BIO_push(tmpbio, out); |
| 477 |
} |
| 478 |
#endif
|
| 479 |
} |
| 480 |
else
|
| 481 |
{
|
| 482 |
if (BIO_write_filename(out,outf) <= 0) |
| 483 |
{
|
| 484 |
perror(outf); |
| 485 |
goto end;
|
| 486 |
} |
| 487 |
} |
| 488 |
|
| 489 |
rbio=in; |
| 490 |
wbio=out; |
| 491 |
|
| 492 |
#ifdef ZLIB
|
| 493 |
|
| 494 |
if (do_zlib)
|
| 495 |
{
|
| 496 |
if ((bzl=BIO_new(BIO_f_zlib())) == NULL) |
| 497 |
goto end;
|
| 498 |
if (enc)
|
| 499 |
wbio=BIO_push(bzl,wbio); |
| 500 |
else
|
| 501 |
rbio=BIO_push(bzl,rbio); |
| 502 |
} |
| 503 |
#endif
|
| 504 |
|
| 505 |
if (base64)
|
| 506 |
{
|
| 507 |
if ((b64=BIO_new(BIO_f_base64())) == NULL) |
| 508 |
goto end;
|
| 509 |
if (debug)
|
| 510 |
{
|
| 511 |
BIO_set_callback(b64,BIO_debug_callback); |
| 512 |
BIO_set_callback_arg(b64,(char *)bio_err);
|
| 513 |
} |
| 514 |
if (olb64)
|
| 515 |
BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL); |
| 516 |
if (enc)
|
| 517 |
wbio=BIO_push(b64,wbio); |
| 518 |
else
|
| 519 |
rbio=BIO_push(b64,rbio); |
| 520 |
} |
| 521 |
|
| 522 |
if (cipher != NULL) |
| 523 |
{
|
| 524 |
/* Note that str is NULL if a key was passed on the command
|
| 525 |
* line, so we get no salt in that case. Is this a bug?
|
| 526 |
*/
|
| 527 |
if (str != NULL) |
| 528 |
{
|
| 529 |
/* Salt handling: if encrypting generate a salt and
|
| 530 |
* write to output BIO. If decrypting read salt from
|
| 531 |
* input BIO.
|
| 532 |
*/
|
| 533 |
unsigned char *sptr; |
| 534 |
if(nosalt) sptr = NULL; |
| 535 |
else {
|
| 536 |
if(enc) {
|
| 537 |
if(hsalt) {
|
| 538 |
if(!set_hex(hsalt,salt,sizeof salt)) { |
| 539 |
BIO_printf(bio_err, |
| 540 |
"invalid hex salt value\n");
|
| 541 |
goto end;
|
| 542 |
} |
| 543 |
} else if (RAND_pseudo_bytes(salt, sizeof salt) < 0) |
| 544 |
goto end;
|
| 545 |
/* If -P option then don't bother writing */
|
| 546 |
if((printkey != 2) |
| 547 |
&& (BIO_write(wbio,magic, |
| 548 |
sizeof magic-1) != sizeof magic-1 |
| 549 |
|| BIO_write(wbio, |
| 550 |
(char *)salt,
|
| 551 |
sizeof salt) != sizeof salt)) { |
| 552 |
BIO_printf(bio_err,"error writing output file\n");
|
| 553 |
goto end;
|
| 554 |
} |
| 555 |
} else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf |
| 556 |
|| BIO_read(rbio, |
| 557 |
(unsigned char *)salt, |
| 558 |
sizeof salt) != sizeof salt) { |
| 559 |
BIO_printf(bio_err,"error reading input file\n");
|
| 560 |
goto end;
|
| 561 |
} else if(memcmp(mbuf,magic,sizeof magic-1)) { |
| 562 |
BIO_printf(bio_err,"bad magic number\n");
|
| 563 |
goto end;
|
| 564 |
} |
| 565 |
|
| 566 |
sptr = salt; |
| 567 |
} |
| 568 |
|
| 569 |
EVP_BytesToKey(cipher,dgst,sptr, |
| 570 |
(unsigned char *)str, |
| 571 |
strlen(str),1,key,iv);
|
| 572 |
/* zero the complete buffer or the string
|
| 573 |
* passed from the command line
|
| 574 |
* bug picked up by
|
| 575 |
* Larry J. Hughes Jr. <hughes@indiana.edu> */
|
| 576 |
if (str == strbuf)
|
| 577 |
OPENSSL_cleanse(str,SIZE); |
| 578 |
else
|
| 579 |
OPENSSL_cleanse(str,strlen(str)); |
| 580 |
} |
| 581 |
if ((hiv != NULL) && !set_hex(hiv,iv,sizeof iv)) |
| 582 |
{
|
| 583 |
BIO_printf(bio_err,"invalid hex iv value\n");
|
| 584 |
goto end;
|
| 585 |
} |
| 586 |
if ((hiv == NULL) && (str == NULL) |
| 587 |
&& EVP_CIPHER_iv_length(cipher) != 0)
|
| 588 |
{
|
| 589 |
/* No IV was explicitly set and no IV was generated
|
| 590 |
* during EVP_BytesToKey. Hence the IV is undefined,
|
| 591 |
* making correct decryption impossible. */
|
| 592 |
BIO_printf(bio_err, "iv undefined\n");
|
| 593 |
goto end;
|
| 594 |
} |
| 595 |
if ((hkey != NULL) && !set_hex(hkey,key,sizeof key)) |
| 596 |
{
|
| 597 |
BIO_printf(bio_err,"invalid hex key value\n");
|
| 598 |
goto end;
|
| 599 |
} |
| 600 |
|
| 601 |
if ((benc=BIO_new(BIO_f_cipher())) == NULL) |
| 602 |
goto end;
|
| 603 |
|
| 604 |
/* Since we may be changing parameters work on the encryption
|
| 605 |
* context rather than calling BIO_set_cipher().
|
| 606 |
*/
|
| 607 |
|
| 608 |
BIO_get_cipher_ctx(benc, &ctx); |
| 609 |
|
| 610 |
if (non_fips_allow)
|
| 611 |
EVP_CIPHER_CTX_set_flags(ctx, |
| 612 |
EVP_CIPH_FLAG_NON_FIPS_ALLOW); |
| 613 |
|
| 614 |
if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) |
| 615 |
{
|
| 616 |
BIO_printf(bio_err, "Error setting cipher %s\n",
|
| 617 |
EVP_CIPHER_name(cipher)); |
| 618 |
ERR_print_errors(bio_err); |
| 619 |
goto end;
|
| 620 |
} |
| 621 |
|
| 622 |
if (nopad)
|
| 623 |
EVP_CIPHER_CTX_set_padding(ctx, 0);
|
| 624 |
|
| 625 |
if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) |
| 626 |
{
|
| 627 |
BIO_printf(bio_err, "Error setting cipher %s\n",
|
| 628 |
EVP_CIPHER_name(cipher)); |
| 629 |
ERR_print_errors(bio_err); |
| 630 |
goto end;
|
| 631 |
} |
| 632 |
|
| 633 |
if (debug)
|
| 634 |
{
|
| 635 |
BIO_set_callback(benc,BIO_debug_callback); |
| 636 |
BIO_set_callback_arg(benc,(char *)bio_err);
|
| 637 |
} |
| 638 |
|
| 639 |
if (printkey)
|
| 640 |
{
|
| 641 |
if (!nosalt)
|
| 642 |
{
|
| 643 |
printf("salt=");
|
| 644 |
for (i=0; i<(int)sizeof(salt); i++) |
| 645 |
printf("%02X",salt[i]);
|
| 646 |
printf("\n");
|
| 647 |
} |
| 648 |
if (cipher->key_len > 0) |
| 649 |
{
|
| 650 |
printf("key=");
|
| 651 |
for (i=0; i<cipher->key_len; i++) |
| 652 |
printf("%02X",key[i]);
|
| 653 |
printf("\n");
|
| 654 |
} |
| 655 |
if (cipher->iv_len > 0) |
| 656 |
{
|
| 657 |
printf("iv =");
|
| 658 |
for (i=0; i<cipher->iv_len; i++) |
| 659 |
printf("%02X",iv[i]);
|
| 660 |
printf("\n");
|
| 661 |
} |
| 662 |
if (printkey == 2) |
| 663 |
{
|
| 664 |
ret=0;
|
| 665 |
goto end;
|
| 666 |
} |
| 667 |
} |
| 668 |
} |
| 669 |
|
| 670 |
/* Only encrypt/decrypt as we write the file */
|
| 671 |
if (benc != NULL) |
| 672 |
wbio=BIO_push(benc,wbio); |
| 673 |
|
| 674 |
for (;;)
|
| 675 |
{
|
| 676 |
inl=BIO_read(rbio,(char *)buff,bsize);
|
| 677 |
if (inl <= 0) break; |
| 678 |
if (BIO_write(wbio,(char *)buff,inl) != inl) |
| 679 |
{
|
| 680 |
BIO_printf(bio_err,"error writing output file\n");
|
| 681 |
goto end;
|
| 682 |
} |
| 683 |
} |
| 684 |
if (!BIO_flush(wbio))
|
| 685 |
{
|
| 686 |
BIO_printf(bio_err,"bad decrypt\n");
|
| 687 |
goto end;
|
| 688 |
} |
| 689 |
|
| 690 |
ret=0;
|
| 691 |
if (verbose)
|
| 692 |
{
|
| 693 |
BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in));
|
| 694 |
BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
|
| 695 |
} |
| 696 |
end:
|
| 697 |
ERR_print_errors(bio_err); |
| 698 |
if (strbuf != NULL) OPENSSL_free(strbuf); |
| 699 |
if (buff != NULL) OPENSSL_free(buff); |
| 700 |
if (in != NULL) BIO_free(in); |
| 701 |
if (out != NULL) BIO_free_all(out); |
| 702 |
if (benc != NULL) BIO_free(benc); |
| 703 |
if (b64 != NULL) BIO_free(b64); |
| 704 |
#ifdef ZLIB
|
| 705 |
if (bzl != NULL) BIO_free(bzl); |
| 706 |
#endif
|
| 707 |
if(pass) OPENSSL_free(pass);
|
| 708 |
apps_shutdown(); |
| 709 |
OPENSSL_EXIT(ret); |
| 710 |
} |
| 711 |
|
| 712 |
int set_hex(char *in, unsigned char *out, int size) |
| 713 |
{
|
| 714 |
int i,n;
|
| 715 |
unsigned char j; |
| 716 |
|
| 717 |
n=strlen(in); |
| 718 |
if (n > (size*2)) |
| 719 |
{
|
| 720 |
BIO_printf(bio_err,"hex string is too long\n");
|
| 721 |
return(0); |
| 722 |
} |
| 723 |
memset(out,0,size);
|
| 724 |
for (i=0; i<n; i++) |
| 725 |
{
|
| 726 |
j=(unsigned char)*in; |
| 727 |
*(in++)='\0';
|
| 728 |
if (j == 0) break; |
| 729 |
if ((j >= '0') && (j <= '9')) |
| 730 |
j-='0';
|
| 731 |
else if ((j >= 'A') && (j <= 'F')) |
| 732 |
j=j-'A'+10; |
| 733 |
else if ((j >= 'a') && (j <= 'f')) |
| 734 |
j=j-'a'+10; |
| 735 |
else
|
| 736 |
{
|
| 737 |
BIO_printf(bio_err,"non-hex digit\n");
|
| 738 |
return(0); |
| 739 |
} |
| 740 |
if (i&1) |
| 741 |
out[i/2]|=j;
|
| 742 |
else
|
| 743 |
out[i/2]=(j<<4); |
| 744 |
} |
| 745 |
return(1); |
| 746 |
} |