2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
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 #include <openssl/comp.h>
73 int set_hex(char *in
,unsigned char *out
,int size
);
79 #define BSIZE (8*1024)
82 static void show_ciphers(const OBJ_NAME
*name
,void *bio_
)
87 if(!islower((unsigned char)*name
->name
))
90 BIO_printf(bio
,"-%-25s",name
->name
);
100 int MAIN(int, char **);
102 int MAIN(int argc
, char **argv
)
104 static const char magic
[]="Salted__";
105 char mbuf
[sizeof magic
-1];
107 unsigned char *buff
=NULL
,*bufsize
=NULL
;
108 int bsize
=BSIZE
,verbose
=0;
111 unsigned char key
[EVP_MAX_KEY_LENGTH
],iv
[EVP_MAX_IV_LENGTH
];
112 unsigned char salt
[PKCS5_SALT_LEN
];
113 char *str
=NULL
, *passarg
= NULL
, *pass
= NULL
;
114 char *hkey
=NULL
,*hiv
=NULL
,*hsalt
= NULL
;
116 int enc
=1,printkey
=0,i
,base64
=0;
121 int debug
=0,olb64
=0,nosalt
=0;
122 const EVP_CIPHER
*cipher
=NULL
,*c
;
123 EVP_CIPHER_CTX
*ctx
= NULL
;
124 char *inf
=NULL
,*outf
=NULL
;
125 BIO
*in
=NULL
,*out
=NULL
,*b64
=NULL
,*benc
=NULL
,*rbio
=NULL
,*wbio
=NULL
;
126 #define PROG_NAME_SIZE 39
127 char pname
[PROG_NAME_SIZE
+1];
128 #ifndef OPENSSL_NO_ENGINE
131 const EVP_MD
*dgst
=NULL
;
136 if ((bio_err
=BIO_new(BIO_s_file())) != NULL
)
137 BIO_set_fp(bio_err
,stderr
,BIO_NOCLOSE
|BIO_FP_TEXT
);
139 if (!load_config(bio_err
, NULL
))
142 /* first check the program name */
143 program_name(argv
[0],pname
,sizeof pname
);
144 if (strcmp(pname
,"base64") == 0)
147 if (strcmp(pname
,"zlib") == 0)
151 cipher
=EVP_get_cipherbyname(pname
);
153 if (!do_zlib
&& !base64
&& (cipher
== NULL
)
154 && (strcmp(pname
,"enc") != 0))
156 if (!base64
&& (cipher
== NULL
) && (strcmp(pname
,"enc") != 0))
159 BIO_printf(bio_err
,"%s is an unknown cipher\n",pname
);
167 if (strcmp(*argv
,"-e") == 0)
169 else if (strcmp(*argv
,"-in") == 0)
171 if (--argc
< 1) goto bad
;
174 else if (strcmp(*argv
,"-out") == 0)
176 if (--argc
< 1) goto bad
;
179 else if (strcmp(*argv
,"-pass") == 0)
181 if (--argc
< 1) goto bad
;
184 #ifndef OPENSSL_NO_ENGINE
185 else if (strcmp(*argv
,"-engine") == 0)
187 if (--argc
< 1) goto bad
;
191 else if (strcmp(*argv
,"-d") == 0)
193 else if (strcmp(*argv
,"-p") == 0)
195 else if (strcmp(*argv
,"-v") == 0)
197 else if (strcmp(*argv
,"-nopad") == 0)
199 else if (strcmp(*argv
,"-salt") == 0)
201 else if (strcmp(*argv
,"-nosalt") == 0)
203 else if (strcmp(*argv
,"-debug") == 0)
205 else if (strcmp(*argv
,"-P") == 0)
207 else if (strcmp(*argv
,"-A") == 0)
209 else if (strcmp(*argv
,"-a") == 0)
211 else if (strcmp(*argv
,"-base64") == 0)
214 else if (strcmp(*argv
,"-z") == 0)
217 else if (strcmp(*argv
,"-bufsize") == 0)
219 if (--argc
< 1) goto bad
;
220 bufsize
=(unsigned char *)*(++argv
);
222 else if (strcmp(*argv
,"-k") == 0)
224 if (--argc
< 1) goto bad
;
227 else if (strcmp(*argv
,"-kfile") == 0)
229 static char buf
[128];
233 if (--argc
< 1) goto bad
;
235 infile
=fopen(file
,"r");
238 BIO_printf(bio_err
,"unable to read key from '%s'\n",
243 if (!fgets(buf
,sizeof buf
,infile
))
245 BIO_printf(bio_err
,"unable to read key from '%s'\n",
252 ((buf
[i
-1] == '\n') || (buf
[i
-1] == '\r')))
255 ((buf
[i
-1] == '\n') || (buf
[i
-1] == '\r')))
259 BIO_printf(bio_err
,"zero length password\n");
264 else if (strcmp(*argv
,"-K") == 0)
266 if (--argc
< 1) goto bad
;
269 else if (strcmp(*argv
,"-S") == 0)
271 if (--argc
< 1) goto bad
;
274 else if (strcmp(*argv
,"-iv") == 0)
276 if (--argc
< 1) goto bad
;
279 else if (strcmp(*argv
,"-md") == 0)
281 if (--argc
< 1) goto bad
;
284 else if ((argv
[0][0] == '-') &&
285 ((c
=EVP_get_cipherbyname(&(argv
[0][1]))) != NULL
))
289 else if (strcmp(*argv
,"-none") == 0)
293 BIO_printf(bio_err
,"unknown option '%s'\n",*argv
);
295 BIO_printf(bio_err
,"options are\n");
296 BIO_printf(bio_err
,"%-14s input file\n","-in <file>");
297 BIO_printf(bio_err
,"%-14s output file\n","-out <file>");
298 BIO_printf(bio_err
,"%-14s pass phrase source\n","-pass <arg>");
299 BIO_printf(bio_err
,"%-14s encrypt\n","-e");
300 BIO_printf(bio_err
,"%-14s decrypt\n","-d");
301 BIO_printf(bio_err
,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
302 BIO_printf(bio_err
,"%-14s passphrase is the next argument\n","-k");
303 BIO_printf(bio_err
,"%-14s passphrase is the first line of the file argument\n","-kfile");
304 BIO_printf(bio_err
,"%-14s the next argument is the md to use to create a key\n","-md");
305 BIO_printf(bio_err
,"%-14s from a passphrase. One of md2, md5, sha or sha1\n","");
306 BIO_printf(bio_err
,"%-14s salt in hex is the next argument\n","-S");
307 BIO_printf(bio_err
,"%-14s key/iv in hex is the next argument\n","-K/-iv");
308 BIO_printf(bio_err
,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
309 BIO_printf(bio_err
,"%-14s buffer size\n","-bufsize <n>");
310 BIO_printf(bio_err
,"%-14s disable standard block padding\n","-nopad");
311 #ifndef OPENSSL_NO_ENGINE
312 BIO_printf(bio_err
,"%-14s use engine e, possibly a hardware device.\n","-engine e");
315 BIO_printf(bio_err
,"Cipher Types\n");
316 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH
,
319 BIO_printf(bio_err
,"\n");
327 #ifndef OPENSSL_NO_ENGINE
328 setup_engine(bio_err
, engine
, 0);
331 if (md
&& (dgst
=EVP_get_digestbyname(md
)) == NULL
)
333 BIO_printf(bio_err
,"%s is an unsupported message digest type\n",md
);
346 for (n
=0; *bufsize
; bufsize
++)
349 if ((i
<= '9') && (i
>= '0'))
358 if (*bufsize
!= '\0')
360 BIO_printf(bio_err
,"invalid 'bufsize' specified.\n");
364 /* It must be large enough for a base64 encoded line */
365 if (base64
&& n
< 80) n
=80;
368 if (verbose
) BIO_printf(bio_err
,"bufsize=%d\n",bsize
);
371 strbuf
=OPENSSL_malloc(SIZE
);
372 buff
=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize
));
373 if ((buff
== NULL
) || (strbuf
== NULL
))
375 BIO_printf(bio_err
,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize
));
379 in
=BIO_new(BIO_s_file());
380 out
=BIO_new(BIO_s_file());
381 if ((in
== NULL
) || (out
== NULL
))
383 ERR_print_errors(bio_err
);
388 BIO_set_callback(in
,BIO_debug_callback
);
389 BIO_set_callback(out
,BIO_debug_callback
);
390 BIO_set_callback_arg(in
,(char *)bio_err
);
391 BIO_set_callback_arg(out
,(char *)bio_err
);
396 #ifndef OPENSSL_NO_SETVBUF_IONBF
398 setvbuf(stdin
, (char *)NULL
, _IONBF
, 0);
399 #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
400 BIO_set_fp(in
,stdin
,BIO_NOCLOSE
);
404 if (BIO_read_filename(in
,inf
) <= 0)
411 if(!str
&& passarg
) {
412 if(!app_passwd(bio_err
, passarg
, NULL
, &pass
, NULL
)) {
413 BIO_printf(bio_err
, "Error getting password\n");
419 if ((str
== NULL
) && (cipher
!= NULL
) && (hkey
== NULL
))
425 BIO_snprintf(buf
,sizeof buf
,"enter %s %s password:",
426 OBJ_nid2ln(EVP_CIPHER_nid(cipher
)),
427 (enc
)?"encryption":"decryption");
429 i
=EVP_read_pw_string((char *)strbuf
,SIZE
,buf
,enc
);
432 if (strbuf
[0] == '\0')
442 BIO_printf(bio_err
,"bad password read\n");
451 BIO_set_fp(out
,stdout
,BIO_NOCLOSE
);
452 #ifndef OPENSSL_NO_SETVBUF_IONBF
454 setvbuf(stdout
, (char *)NULL
, _IONBF
, 0);
455 #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
456 #ifdef OPENSSL_SYS_VMS
458 BIO
*tmpbio
= BIO_new(BIO_f_linebuffer());
459 out
= BIO_push(tmpbio
, out
);
465 if (BIO_write_filename(out
,outf
) <= 0)
479 if ((bzl
=BIO_new(BIO_f_zlib())) == NULL
)
482 wbio
=BIO_push(bzl
,wbio
);
484 rbio
=BIO_push(bzl
,rbio
);
490 if ((b64
=BIO_new(BIO_f_base64())) == NULL
)
494 BIO_set_callback(b64
,BIO_debug_callback
);
495 BIO_set_callback_arg(b64
,(char *)bio_err
);
498 BIO_set_flags(b64
,BIO_FLAGS_BASE64_NO_NL
);
500 wbio
=BIO_push(b64
,wbio
);
502 rbio
=BIO_push(b64
,rbio
);
507 /* Note that str is NULL if a key was passed on the command
508 * line, so we get no salt in that case. Is this a bug?
512 /* Salt handling: if encrypting generate a salt and
513 * write to output BIO. If decrypting read salt from
517 if(nosalt
) sptr
= NULL
;
521 if(!set_hex(hsalt
,salt
,sizeof salt
)) {
523 "invalid hex salt value\n");
526 } else if (RAND_pseudo_bytes(salt
, sizeof salt
) < 0)
528 /* If -P option then don't bother writing */
530 && (BIO_write(wbio
,magic
,
531 sizeof magic
-1) != sizeof magic
-1
534 sizeof salt
) != sizeof salt
)) {
535 BIO_printf(bio_err
,"error writing output file\n");
538 } else if(BIO_read(rbio
,mbuf
,sizeof mbuf
) != sizeof mbuf
540 (unsigned char *)salt
,
541 sizeof salt
) != sizeof salt
) {
542 BIO_printf(bio_err
,"error reading input file\n");
544 } else if(memcmp(mbuf
,magic
,sizeof magic
-1)) {
545 BIO_printf(bio_err
,"bad magic number\n");
552 EVP_BytesToKey(cipher
,dgst
,sptr
,
553 (unsigned char *)str
,
554 strlen(str
),1,key
,iv
);
555 /* zero the complete buffer or the string
556 * passed from the command line
558 * Larry J. Hughes Jr. <hughes@indiana.edu> */
560 OPENSSL_cleanse(str
,SIZE
);
562 OPENSSL_cleanse(str
,strlen(str
));
564 if ((hiv
!= NULL
) && !set_hex(hiv
,iv
,sizeof iv
))
566 BIO_printf(bio_err
,"invalid hex iv value\n");
569 if ((hiv
== NULL
) && (str
== NULL
)
570 && EVP_CIPHER_iv_length(cipher
) != 0)
572 /* No IV was explicitly set and no IV was generated
573 * during EVP_BytesToKey. Hence the IV is undefined,
574 * making correct decryption impossible. */
575 BIO_printf(bio_err
, "iv undefined\n");
578 if ((hkey
!= NULL
) && !set_hex(hkey
,key
,sizeof key
))
580 BIO_printf(bio_err
,"invalid hex key value\n");
584 if ((benc
=BIO_new(BIO_f_cipher())) == NULL
)
587 /* Since we may be changing parameters work on the encryption
588 * context rather than calling BIO_set_cipher().
591 BIO_get_cipher_ctx(benc
, &ctx
);
592 if (!EVP_CipherInit_ex(ctx
, cipher
, NULL
, NULL
, NULL
, enc
))
594 BIO_printf(bio_err
, "Error setting cipher %s\n",
595 EVP_CIPHER_name(cipher
));
596 ERR_print_errors(bio_err
);
601 EVP_CIPHER_CTX_set_padding(ctx
, 0);
603 if (!EVP_CipherInit_ex(ctx
, NULL
, NULL
, key
, iv
, enc
))
605 BIO_printf(bio_err
, "Error setting cipher %s\n",
606 EVP_CIPHER_name(cipher
));
607 ERR_print_errors(bio_err
);
613 BIO_set_callback(benc
,BIO_debug_callback
);
614 BIO_set_callback_arg(benc
,(char *)bio_err
);
622 for (i
=0; i
<(int)sizeof(salt
); i
++)
623 printf("%02X",salt
[i
]);
626 if (cipher
->key_len
> 0)
629 for (i
=0; i
<cipher
->key_len
; i
++)
630 printf("%02X",key
[i
]);
633 if (cipher
->iv_len
> 0)
636 for (i
=0; i
<cipher
->iv_len
; i
++)
637 printf("%02X",iv
[i
]);
648 /* Only encrypt/decrypt as we write the file */
650 wbio
=BIO_push(benc
,wbio
);
654 inl
=BIO_read(rbio
,(char *)buff
,bsize
);
656 if (BIO_write(wbio
,(char *)buff
,inl
) != inl
)
658 BIO_printf(bio_err
,"error writing output file\n");
662 if (!BIO_flush(wbio
))
664 BIO_printf(bio_err
,"bad decrypt\n");
671 BIO_printf(bio_err
,"bytes read :%8ld\n",BIO_number_read(in
));
672 BIO_printf(bio_err
,"bytes written:%8ld\n",BIO_number_written(out
));
675 ERR_print_errors(bio_err
);
676 if (strbuf
!= NULL
) OPENSSL_free(strbuf
);
677 if (buff
!= NULL
) OPENSSL_free(buff
);
678 if (in
!= NULL
) BIO_free(in
);
679 if (out
!= NULL
) BIO_free_all(out
);
680 if (benc
!= NULL
) BIO_free(benc
);
681 if (b64
!= NULL
) BIO_free(b64
);
683 if (bzl
!= NULL
) BIO_free(bzl
);
685 if(pass
) OPENSSL_free(pass
);
690 int set_hex(char *in
, unsigned char *out
, int size
)
698 BIO_printf(bio_err
,"hex string is too long\n");
704 j
=(unsigned char)*in
;
707 if ((j
>= '0') && (j
<= '9'))
709 else if ((j
>= 'A') && (j
<= 'F'))
711 else if ((j
>= 'a') && (j
<= 'f'))
715 BIO_printf(bio_err
,"non-hex digit\n");