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>
72 int set_hex(char *in,unsigned char *out,int size);
78 #define BSIZE (8*1024)
81 static void show_ciphers(const OBJ_NAME *name,void *bio_)
86 if(!islower((unsigned char)*name->name))
89 BIO_printf(bio,"-%-25s",name->name);
99 int MAIN(int, char **);
101 int MAIN(int argc, char **argv)
103 #ifndef OPENSSL_NO_ENGINE
106 static const char magic[]="Salted__";
107 char mbuf[sizeof magic-1];
109 unsigned char *buff=NULL,*bufsize=NULL;
110 int bsize=BSIZE,verbose=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;
118 int enc=1,printkey=0,i,base64=0;
119 int debug=0,olb64=0,nosalt=0;
120 const EVP_CIPHER *cipher=NULL,*c;
121 EVP_CIPHER_CTX *ctx = NULL;
122 char *inf=NULL,*outf=NULL;
123 BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
124 #define PROG_NAME_SIZE 39
125 char pname[PROG_NAME_SIZE+1];
126 #ifndef OPENSSL_NO_ENGINE
129 const EVP_MD *dgst=NULL;
134 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
135 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
137 if (!load_config(bio_err, NULL))
140 /* first check the program name */
141 program_name(argv[0],pname,sizeof pname);
142 if (strcmp(pname,"base64") == 0)
145 cipher=EVP_get_cipherbyname(pname);
146 if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
148 BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
156 if (strcmp(*argv,"-e") == 0)
158 else if (strcmp(*argv,"-in") == 0)
160 if (--argc < 1) goto bad;
163 else if (strcmp(*argv,"-out") == 0)
165 if (--argc < 1) goto bad;
168 else if (strcmp(*argv,"-pass") == 0)
170 if (--argc < 1) goto bad;
173 #ifndef OPENSSL_NO_ENGINE
174 else if (strcmp(*argv,"-engine") == 0)
176 if (--argc < 1) goto bad;
180 else if (strcmp(*argv,"-d") == 0)
182 else if (strcmp(*argv,"-p") == 0)
184 else if (strcmp(*argv,"-v") == 0)
186 else if (strcmp(*argv,"-nopad") == 0)
188 else if (strcmp(*argv,"-salt") == 0)
190 else if (strcmp(*argv,"-nosalt") == 0)
192 else if (strcmp(*argv,"-debug") == 0)
194 else if (strcmp(*argv,"-P") == 0)
196 else if (strcmp(*argv,"-A") == 0)
198 else if (strcmp(*argv,"-a") == 0)
200 else if (strcmp(*argv,"-base64") == 0)
202 else if (strcmp(*argv,"-bufsize") == 0)
204 if (--argc < 1) goto bad;
205 bufsize=(unsigned char *)*(++argv);
207 else if (strcmp(*argv,"-k") == 0)
209 if (--argc < 1) goto bad;
212 else if (strcmp(*argv,"-kfile") == 0)
214 static char buf[128];
218 if (--argc < 1) goto bad;
220 infile=fopen(file,"r");
223 BIO_printf(bio_err,"unable to read key from '%s'\n",
228 fgets(buf,sizeof buf,infile);
232 ((buf[i-1] == '\n') || (buf[i-1] == '\r')))
235 ((buf[i-1] == '\n') || (buf[i-1] == '\r')))
239 BIO_printf(bio_err,"zero length password\n");
244 else if (strcmp(*argv,"-K") == 0)
246 if (--argc < 1) goto bad;
249 else if (strcmp(*argv,"-S") == 0)
251 if (--argc < 1) goto bad;
254 else if (strcmp(*argv,"-iv") == 0)
256 if (--argc < 1) goto bad;
259 else if (strcmp(*argv,"-md") == 0)
261 if (--argc < 1) goto bad;
264 else if ((argv[0][0] == '-') &&
265 ((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
269 else if (strcmp(*argv,"-none") == 0)
273 BIO_printf(bio_err,"unknown option '%s'\n",*argv);
275 BIO_printf(bio_err,"options are\n");
276 BIO_printf(bio_err,"%-14s input file\n","-in <file>");
277 BIO_printf(bio_err,"%-14s output file\n","-out <file>");
278 BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>");
279 BIO_printf(bio_err,"%-14s encrypt\n","-e");
280 BIO_printf(bio_err,"%-14s decrypt\n","-d");
281 BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
282 BIO_printf(bio_err,"%-14s passphrase is the next argument\n","-k");
283 BIO_printf(bio_err,"%-14s passphrase is the first line of the file argument\n","-kfile");
284 BIO_printf(bio_err,"%-14s the next argument is the md to use to create a key\n","-md");
285 BIO_printf(bio_err,"%-14s from a passphrase. One of md2, md5, sha or sha1\n","");
286 BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
287 BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
288 BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
289 #ifndef OPENSSL_NO_ENGINE
290 BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e");
293 BIO_printf(bio_err,"Cipher Types\n");
294 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
297 BIO_printf(bio_err,"\n");
305 #ifndef OPENSSL_NO_ENGINE
306 e = setup_engine(bio_err, engine, 0);
309 if (md && (dgst=EVP_get_digestbyname(md)) == NULL)
311 BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
324 for (n=0; *bufsize; bufsize++)
327 if ((i <= '9') && (i >= '0'))
336 if (*bufsize != '\0')
338 BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
342 /* It must be large enough for a base64 encoded line */
346 if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
349 strbuf=OPENSSL_malloc(SIZE);
350 buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
351 if ((buff == NULL) || (strbuf == NULL))
353 BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
357 in=BIO_new(BIO_s_file());
358 out=BIO_new(BIO_s_file());
359 if ((in == NULL) || (out == NULL))
361 ERR_print_errors(bio_err);
366 BIO_set_callback(in,BIO_debug_callback);
367 BIO_set_callback(out,BIO_debug_callback);
368 BIO_set_callback_arg(in,bio_err);
369 BIO_set_callback_arg(out,bio_err);
373 BIO_set_fp(in,stdin,BIO_NOCLOSE);
376 if (BIO_read_filename(in,inf) <= 0)
383 if(!str && passarg) {
384 if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
385 BIO_printf(bio_err, "Error getting password\n");
391 if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
397 BIO_snprintf(buf,sizeof buf,"enter %s %s password:",
398 OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
399 (enc)?"encryption":"decryption");
401 i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
404 if (strbuf[0] == '\0')
414 BIO_printf(bio_err,"bad password read\n");
423 BIO_set_fp(out,stdout,BIO_NOCLOSE);
424 #ifdef OPENSSL_SYS_VMS
426 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
427 out = BIO_push(tmpbio, out);
433 if (BIO_write_filename(out,outf) <= 0)
445 if ((b64=BIO_new(BIO_f_base64())) == NULL)
449 BIO_set_callback(b64,BIO_debug_callback);
450 BIO_set_callback_arg(b64,bio_err);
453 BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
455 wbio=BIO_push(b64,wbio);
457 rbio=BIO_push(b64,rbio);
462 /* Note that str is NULL if a key was passed on the command
463 * line, so we get no salt in that case. Is this a bug?
467 /* Salt handling: if encrypting generate a salt and
468 * write to output BIO. If decrypting read salt from
472 if(nosalt) sptr = NULL;
476 if(!set_hex(hsalt,salt,sizeof salt)) {
478 "invalid hex salt value\n");
481 } else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
483 /* If -P option then don't bother writing */
485 && (BIO_write(wbio,magic,
486 sizeof magic-1) != sizeof magic-1
489 sizeof salt) != sizeof salt)) {
490 BIO_printf(bio_err,"error writing output file\n");
493 } else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf
495 (unsigned char *)salt,
496 sizeof salt) != sizeof salt) {
497 BIO_printf(bio_err,"error reading input file\n");
499 } else if(memcmp(mbuf,magic,sizeof magic-1)) {
500 BIO_printf(bio_err,"bad magic number\n");
507 EVP_BytesToKey(cipher,dgst,sptr,
508 (unsigned char *)str,
509 strlen(str),1,key,iv);
510 /* zero the complete buffer or the string
511 * passed from the command line
513 * Larry J. Hughes Jr. <hughes@indiana.edu> */
515 OPENSSL_cleanse(str,SIZE);
517 OPENSSL_cleanse(str,strlen(str));
519 if ((hiv != NULL) && !set_hex(hiv,iv,sizeof iv))
521 BIO_printf(bio_err,"invalid hex iv value\n");
524 if ((hiv == NULL) && (str == NULL))
526 /* No IV was explicitly set and no IV was generated
527 * during EVP_BytesToKey. Hence the IV is undefined,
528 * making correct decryption impossible. */
529 BIO_printf(bio_err, "iv undefined\n");
532 if ((hkey != NULL) && !set_hex(hkey,key,sizeof key))
534 BIO_printf(bio_err,"invalid hex key value\n");
538 if ((benc=BIO_new(BIO_f_cipher())) == NULL)
541 /* Since we may be changing parameters work on the encryption
542 * context rather than calling BIO_set_cipher().
545 BIO_get_cipher_ctx(benc, &ctx);
546 if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc))
548 BIO_printf(bio_err, "Error setting cipher %s\n",
549 EVP_CIPHER_name(cipher));
550 ERR_print_errors(bio_err);
555 EVP_CIPHER_CTX_set_padding(ctx, 0);
557 if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc))
559 BIO_printf(bio_err, "Error setting cipher %s\n",
560 EVP_CIPHER_name(cipher));
561 ERR_print_errors(bio_err);
567 BIO_set_callback(benc,BIO_debug_callback);
568 BIO_set_callback_arg(benc,bio_err);
576 for (i=0; i<(int)sizeof(salt); i++)
577 printf("%02X",salt[i]);
580 if (cipher->key_len > 0)
583 for (i=0; i<cipher->key_len; i++)
584 printf("%02X",key[i]);
587 if (cipher->iv_len > 0)
590 for (i=0; i<cipher->iv_len; i++)
591 printf("%02X",iv[i]);
602 /* Only encrypt/decrypt as we write the file */
604 wbio=BIO_push(benc,wbio);
608 inl=BIO_read(rbio,(char *)buff,bsize);
610 if (BIO_write(wbio,(char *)buff,inl) != inl)
612 BIO_printf(bio_err,"error writing output file\n");
616 if (!BIO_flush(wbio))
618 BIO_printf(bio_err,"bad decrypt\n");
625 BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in));
626 BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
629 ERR_print_errors(bio_err);
630 if (strbuf != NULL) OPENSSL_free(strbuf);
631 if (buff != NULL) OPENSSL_free(buff);
632 if (in != NULL) BIO_free(in);
633 if (out != NULL) BIO_free_all(out);
634 if (benc != NULL) BIO_free(benc);
635 if (b64 != NULL) BIO_free(b64);
636 if(pass) OPENSSL_free(pass);
641 int set_hex(char *in, unsigned char *out, int size)
649 BIO_printf(bio_err,"hex string is too long\n");
655 j=(unsigned char)*in;
658 if ((j >= '0') && (j <= '9'))
660 else if ((j >= 'A') && (j <= 'F'))
662 else if ((j >= 'a') && (j <= 'f'))
666 BIO_printf(bio_err,"non-hex digit\n");