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1.2 ! doug 1: /* $OpenBSD: dgst.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */
1.1 jsing 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:
63: #include "apps.h"
64:
65: #include <openssl/bio.h>
66: #include <openssl/err.h>
67: #include <openssl/evp.h>
68: #include <openssl/hmac.h>
69: #include <openssl/objects.h>
70: #include <openssl/pem.h>
71: #include <openssl/x509.h>
72:
73: #define BUFSIZE 1024*8
74:
75: int
76: do_fp(BIO * out, unsigned char *buf, BIO * bp, int sep, int binout,
77: EVP_PKEY * key, unsigned char *sigin, int siglen,
78: const char *sig_name, const char *md_name,
79: const char *file, BIO * bmd);
80:
81: static void
82: list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg)
83: {
84: const char *mname;
85: /* Skip aliases */
86: if (!m)
87: return;
88: mname = OBJ_nid2ln(EVP_MD_type(m));
89: /* Skip shortnames */
90: if (strcmp(from, mname))
91: return;
92: /* Skip clones */
93: if (EVP_MD_flags(m) & EVP_MD_FLAG_PKEY_DIGEST)
94: return;
95: if (strchr(mname, ' '))
96: mname = EVP_MD_name(m);
97: BIO_printf(arg, "-%-14s to use the %s message digest algorithm\n",
98: mname, mname);
99: }
100:
101: int dgst_main(int, char **);
102:
103: int
104: dgst_main(int argc, char **argv)
105: {
106: ENGINE *e = NULL;
107: unsigned char *buf = NULL;
108: int i, err = 1;
109: const EVP_MD *md = NULL, *m;
110: BIO *in = NULL, *inp;
111: BIO *bmd = NULL;
112: BIO *out = NULL;
113: #define PROG_NAME_SIZE 39
114: char pname[PROG_NAME_SIZE + 1];
115: int separator = 0;
116: int debug = 0;
117: int keyform = FORMAT_PEM;
118: const char *outfile = NULL, *keyfile = NULL;
119: const char *sigfile = NULL;
120: int out_bin = -1, want_pub = 0, do_verify = 0;
121: EVP_PKEY *sigkey = NULL;
122: unsigned char *sigbuf = NULL;
123: int siglen = 0;
124: char *passargin = NULL, *passin = NULL;
125: #ifndef OPENSSL_NO_ENGINE
126: char *engine = NULL;
127: #endif
128: char *hmac_key = NULL;
129: char *mac_name = NULL;
130: STACK_OF(OPENSSL_STRING) * sigopts = NULL, *macopts = NULL;
131:
132: if ((buf = malloc(BUFSIZE)) == NULL) {
133: BIO_printf(bio_err, "out of memory\n");
134: goto end;
135: }
136:
137: /* first check the program name */
138: program_name(argv[0], pname, sizeof pname);
139:
140: md = EVP_get_digestbyname(pname);
141:
142: argc--;
143: argv++;
144: while (argc > 0) {
145: if ((*argv)[0] != '-')
146: break;
147: if (strcmp(*argv, "-c") == 0)
148: separator = 1;
149: else if (strcmp(*argv, "-r") == 0)
150: separator = 2;
151: else if (strcmp(*argv, "-out") == 0) {
152: if (--argc < 1)
153: break;
154: outfile = *(++argv);
155: } else if (strcmp(*argv, "-sign") == 0) {
156: if (--argc < 1)
157: break;
158: keyfile = *(++argv);
159: } else if (!strcmp(*argv, "-passin")) {
160: if (--argc < 1)
161: break;
162: passargin = *++argv;
163: } else if (strcmp(*argv, "-verify") == 0) {
164: if (--argc < 1)
165: break;
166: keyfile = *(++argv);
167: want_pub = 1;
168: do_verify = 1;
169: } else if (strcmp(*argv, "-prverify") == 0) {
170: if (--argc < 1)
171: break;
172: keyfile = *(++argv);
173: do_verify = 1;
174: } else if (strcmp(*argv, "-signature") == 0) {
175: if (--argc < 1)
176: break;
177: sigfile = *(++argv);
178: } else if (strcmp(*argv, "-keyform") == 0) {
179: if (--argc < 1)
180: break;
181: keyform = str2fmt(*(++argv));
182: }
183: #ifndef OPENSSL_NO_ENGINE
184: else if (strcmp(*argv, "-engine") == 0) {
185: if (--argc < 1)
186: break;
187: engine = *(++argv);
188: e = setup_engine(bio_err, engine, 0);
189: }
190: #endif
191: else if (strcmp(*argv, "-hex") == 0)
192: out_bin = 0;
193: else if (strcmp(*argv, "-binary") == 0)
194: out_bin = 1;
195: else if (strcmp(*argv, "-d") == 0)
196: debug = 1;
197: else if (!strcmp(*argv, "-hmac")) {
198: if (--argc < 1)
199: break;
200: hmac_key = *++argv;
201: } else if (!strcmp(*argv, "-mac")) {
202: if (--argc < 1)
203: break;
204: mac_name = *++argv;
205: } else if (strcmp(*argv, "-sigopt") == 0) {
206: if (--argc < 1)
207: break;
208: if (!sigopts)
209: sigopts = sk_OPENSSL_STRING_new_null();
210: if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
211: break;
212: } else if (strcmp(*argv, "-macopt") == 0) {
213: if (--argc < 1)
214: break;
215: if (!macopts)
216: macopts = sk_OPENSSL_STRING_new_null();
217: if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv)))
218: break;
219: } else if ((m = EVP_get_digestbyname(&((*argv)[1]))) != NULL)
220: md = m;
221: else
222: break;
223: argc--;
224: argv++;
225: }
226:
227:
228: if (do_verify && !sigfile) {
229: BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
230: goto end;
231: }
232: if ((argc > 0) && (argv[0][0] == '-')) { /* bad option */
233: BIO_printf(bio_err, "unknown option '%s'\n", *argv);
234: BIO_printf(bio_err, "options are\n");
235: BIO_printf(bio_err, "-c to output the digest with separating colons\n");
236: BIO_printf(bio_err, "-r to output the digest in coreutils format\n");
237: BIO_printf(bio_err, "-d to output debug info\n");
238: BIO_printf(bio_err, "-hex output as hex dump\n");
239: BIO_printf(bio_err, "-binary output in binary form\n");
240: BIO_printf(bio_err, "-sign file sign digest using private key in file\n");
241: BIO_printf(bio_err, "-verify file verify a signature using public key in file\n");
242: BIO_printf(bio_err, "-prverify file verify a signature using private key in file\n");
243: BIO_printf(bio_err, "-keyform arg key file format (PEM or ENGINE)\n");
244: BIO_printf(bio_err, "-out filename output to filename rather than stdout\n");
245: BIO_printf(bio_err, "-signature file signature to verify\n");
246: BIO_printf(bio_err, "-sigopt nm:v signature parameter\n");
247: BIO_printf(bio_err, "-hmac key create hashed MAC with key\n");
248: BIO_printf(bio_err, "-mac algorithm create MAC (not neccessarily HMAC)\n");
249: BIO_printf(bio_err, "-macopt nm:v MAC algorithm parameters or key\n");
250: #ifndef OPENSSL_NO_ENGINE
251: BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
252: #endif
253:
254: EVP_MD_do_all_sorted(list_md_fn, bio_err);
255: goto end;
256: }
1.2 ! doug 257:
1.1 jsing 258: in = BIO_new(BIO_s_file());
259: bmd = BIO_new(BIO_f_md());
1.2 ! doug 260: if (in == NULL || bmd == NULL) {
! 261: ERR_print_errors(bio_err);
! 262: goto end;
! 263: }
! 264:
1.1 jsing 265: if (debug) {
266: BIO_set_callback(in, BIO_debug_callback);
267: /* needed for windows 3.1 */
268: BIO_set_callback_arg(in, (char *) bio_err);
269: }
270: if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
271: BIO_printf(bio_err, "Error getting password\n");
272: goto end;
273: }
274: if (out_bin == -1) {
275: if (keyfile)
276: out_bin = 1;
277: else
278: out_bin = 0;
279: }
280:
281: if (outfile) {
282: if (out_bin)
283: out = BIO_new_file(outfile, "wb");
284: else
285: out = BIO_new_file(outfile, "w");
286: } else {
287: out = BIO_new_fp(stdout, BIO_NOCLOSE);
288: }
289:
290: if (!out) {
291: BIO_printf(bio_err, "Error opening output file %s\n",
292: outfile ? outfile : "(stdout)");
293: ERR_print_errors(bio_err);
294: goto end;
295: }
296: if ((!!mac_name + !!keyfile + !!hmac_key) > 1) {
297: BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
298: goto end;
299: }
300: if (keyfile) {
301: if (want_pub)
302: sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
303: e, "key file");
304: else
305: sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
306: e, "key file");
307: if (!sigkey) {
308: /*
309: * load_[pub]key() has already printed an appropriate
310: * message
311: */
312: goto end;
313: }
314: }
315: if (mac_name) {
316: EVP_PKEY_CTX *mac_ctx = NULL;
317: int r = 0;
318: if (!init_gen_str(bio_err, &mac_ctx, mac_name, e, 0))
319: goto mac_end;
320: if (macopts) {
321: char *macopt;
322: for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
323: macopt = sk_OPENSSL_STRING_value(macopts, i);
324: if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
325: BIO_printf(bio_err,
326: "MAC parameter error \"%s\"\n",
327: macopt);
328: ERR_print_errors(bio_err);
329: goto mac_end;
330: }
331: }
332: }
333: if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) {
334: BIO_puts(bio_err, "Error generating key\n");
335: ERR_print_errors(bio_err);
336: goto mac_end;
337: }
338: r = 1;
339: mac_end:
340: if (mac_ctx)
341: EVP_PKEY_CTX_free(mac_ctx);
342: if (r == 0)
343: goto end;
344: }
345: if (hmac_key) {
346: sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, e,
347: (unsigned char *) hmac_key, -1);
348: if (!sigkey)
349: goto end;
350: }
351: if (sigkey) {
352: EVP_MD_CTX *mctx = NULL;
353: EVP_PKEY_CTX *pctx = NULL;
354: int r;
355: if (!BIO_get_md_ctx(bmd, &mctx)) {
356: BIO_printf(bio_err, "Error getting context\n");
357: ERR_print_errors(bio_err);
358: goto end;
359: }
360: if (do_verify)
361: r = EVP_DigestVerifyInit(mctx, &pctx, md, NULL, sigkey);
362: else
363: r = EVP_DigestSignInit(mctx, &pctx, md, NULL, sigkey);
364: if (!r) {
365: BIO_printf(bio_err, "Error setting context\n");
366: ERR_print_errors(bio_err);
367: goto end;
368: }
369: if (sigopts) {
370: char *sigopt;
371: for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
372: sigopt = sk_OPENSSL_STRING_value(sigopts, i);
373: if (pkey_ctrl_string(pctx, sigopt) <= 0) {
374: BIO_printf(bio_err,
375: "parameter error \"%s\"\n",
376: sigopt);
377: ERR_print_errors(bio_err);
378: goto end;
379: }
380: }
381: }
382: }
383: /* we use md as a filter, reading from 'in' */
384: else {
385: if (md == NULL)
386: md = EVP_md5();
387: if (!BIO_set_md(bmd, md)) {
388: BIO_printf(bio_err, "Error setting digest %s\n", pname);
389: ERR_print_errors(bio_err);
390: goto end;
391: }
392: }
393:
394: if (sigfile && sigkey) {
395: BIO *sigbio;
396: sigbio = BIO_new_file(sigfile, "rb");
397: siglen = EVP_PKEY_size(sigkey);
398: sigbuf = malloc(siglen);
399: if (!sigbio) {
400: BIO_printf(bio_err, "Error opening signature file %s\n",
401: sigfile);
402: ERR_print_errors(bio_err);
403: goto end;
404: }
405: siglen = BIO_read(sigbio, sigbuf, siglen);
406: BIO_free(sigbio);
407: if (siglen <= 0) {
408: BIO_printf(bio_err, "Error reading signature file %s\n",
409: sigfile);
410: ERR_print_errors(bio_err);
411: goto end;
412: }
413: }
414: inp = BIO_push(bmd, in);
415:
416: if (md == NULL) {
417: EVP_MD_CTX *tctx;
418: BIO_get_md_ctx(bmd, &tctx);
419: md = EVP_MD_CTX_md(tctx);
420: }
421: if (argc == 0) {
422: BIO_set_fp(in, stdin, BIO_NOCLOSE);
423: err = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
424: siglen, NULL, NULL, "stdin", bmd);
425: } else {
426: const char *md_name = NULL, *sig_name = NULL;
427: if (!out_bin) {
428: if (sigkey) {
429: const EVP_PKEY_ASN1_METHOD *ameth;
430: ameth = EVP_PKEY_get0_asn1(sigkey);
431: if (ameth)
432: EVP_PKEY_asn1_get0_info(NULL, NULL,
433: NULL, NULL, &sig_name, ameth);
434: }
435: md_name = EVP_MD_name(md);
436: }
437: err = 0;
438: for (i = 0; i < argc; i++) {
439: int r;
440: if (BIO_read_filename(in, argv[i]) <= 0) {
441: perror(argv[i]);
442: err++;
443: continue;
444: } else {
445: r = do_fp(out, buf, inp, separator, out_bin,
446: sigkey, sigbuf, siglen, sig_name, md_name,
447: argv[i], bmd);
448: }
449: if (r)
450: err = r;
451: (void) BIO_reset(bmd);
452: }
453: }
454:
455: end:
456: if (buf != NULL) {
457: OPENSSL_cleanse(buf, BUFSIZE);
458: free(buf);
459: }
460: if (in != NULL)
461: BIO_free(in);
462: free(passin);
463: BIO_free_all(out);
464: EVP_PKEY_free(sigkey);
465: if (sigopts)
466: sk_OPENSSL_STRING_free(sigopts);
467: if (macopts)
468: sk_OPENSSL_STRING_free(macopts);
469: free(sigbuf);
470: if (bmd != NULL)
471: BIO_free(bmd);
472:
473: return (err);
474: }
475:
476: int
477: do_fp(BIO * out, unsigned char *buf, BIO * bp, int sep, int binout,
478: EVP_PKEY * key, unsigned char *sigin, int siglen,
479: const char *sig_name, const char *md_name,
480: const char *file, BIO * bmd)
481: {
482: size_t len;
483: int i;
484:
485: for (;;) {
486: i = BIO_read(bp, (char *) buf, BUFSIZE);
487: if (i < 0) {
488: BIO_printf(bio_err, "Read Error in %s\n", file);
489: ERR_print_errors(bio_err);
490: return 1;
491: }
492: if (i == 0)
493: break;
494: }
495: if (sigin) {
496: EVP_MD_CTX *ctx;
497: BIO_get_md_ctx(bp, &ctx);
498: i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int) siglen);
499: if (i > 0)
500: BIO_printf(out, "Verified OK\n");
501: else if (i == 0) {
502: BIO_printf(out, "Verification Failure\n");
503: return 1;
504: } else {
505: BIO_printf(bio_err, "Error Verifying Data\n");
506: ERR_print_errors(bio_err);
507: return 1;
508: }
509: return 0;
510: }
511: if (key) {
512: EVP_MD_CTX *ctx;
513: BIO_get_md_ctx(bp, &ctx);
514: len = BUFSIZE;
515: if (!EVP_DigestSignFinal(ctx, buf, &len)) {
516: BIO_printf(bio_err, "Error Signing Data\n");
517: ERR_print_errors(bio_err);
518: return 1;
519: }
520: } else {
521: len = BIO_gets(bp, (char *) buf, BUFSIZE);
522: if ((int) len < 0) {
523: ERR_print_errors(bio_err);
524: return 1;
525: }
526: }
527:
528: if (binout)
529: BIO_write(out, buf, len);
530: else if (sep == 2) {
531: for (i = 0; i < (int) len; i++)
532: BIO_printf(out, "%02x", buf[i]);
533: BIO_printf(out, " *%s\n", file);
534: } else {
535: if (sig_name)
536: BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file);
537: else if (md_name)
538: BIO_printf(out, "%s(%s)= ", md_name, file);
539: else
540: BIO_printf(out, "(%s)= ", file);
541: for (i = 0; i < (int) len; i++) {
542: if (sep && (i != 0))
543: BIO_printf(out, ":");
544: BIO_printf(out, "%02x", buf[i]);
545: }
546: BIO_printf(out, "\n");
547: }
548: return 0;
549: }