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1.2 ! jsing 1: /* $OpenBSD: cms.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */
1.1 jsing 2: /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3: * project.
4: */
5: /* ====================================================================
6: * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: *
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: *
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in
17: * the documentation and/or other materials provided with the
18: * distribution.
19: *
20: * 3. All advertising materials mentioning features or use of this
21: * software must display the following acknowledgment:
22: * "This product includes software developed by the OpenSSL Project
23: * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24: *
25: * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26: * endorse or promote products derived from this software without
27: * prior written permission. For written permission, please contact
28: * licensing@OpenSSL.org.
29: *
30: * 5. Products derived from this software may not be called "OpenSSL"
31: * nor may "OpenSSL" appear in their names without prior written
32: * permission of the OpenSSL Project.
33: *
34: * 6. Redistributions of any form whatsoever must retain the following
35: * acknowledgment:
36: * "This product includes software developed by the OpenSSL Project
37: * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38: *
39: * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50: * OF THE POSSIBILITY OF SUCH DAMAGE.
51: * ====================================================================
52: */
53:
54: /* CMS utility function */
55:
56: #include <stdio.h>
57: #include <string.h>
58:
59: #include "apps.h"
60:
61: #ifndef OPENSSL_NO_CMS
62:
63: #include <openssl/cms.h>
64: #include <openssl/crypto.h>
65: #include <openssl/err.h>
66: #include <openssl/pem.h>
67: #include <openssl/x509_vfy.h>
68: #include <openssl/x509v3.h>
69:
70: static int save_certs(char *signerfile, STACK_OF(X509) * signers);
71: static int cms_cb(int ok, X509_STORE_CTX * ctx);
72: static void receipt_request_print(BIO * out, CMS_ContentInfo * cms);
73: static CMS_ReceiptRequest * make_receipt_request(
74: STACK_OF(OPENSSL_STRING) * rr_to, int rr_allorfirst,
75: STACK_OF(OPENSSL_STRING) * rr_from);
76:
77: #define SMIME_OP 0x10
78: #define SMIME_IP 0x20
79: #define SMIME_SIGNERS 0x40
80: #define SMIME_ENCRYPT (1 | SMIME_OP)
81: #define SMIME_DECRYPT (2 | SMIME_IP)
82: #define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS)
83: #define SMIME_VERIFY (4 | SMIME_IP)
84: #define SMIME_CMSOUT (5 | SMIME_IP | SMIME_OP)
85: #define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
86: #define SMIME_DATAOUT (7 | SMIME_IP)
87: #define SMIME_DATA_CREATE (8 | SMIME_OP)
88: #define SMIME_DIGEST_VERIFY (9 | SMIME_IP)
89: #define SMIME_DIGEST_CREATE (10 | SMIME_OP)
90: #define SMIME_UNCOMPRESS (11 | SMIME_IP)
91: #define SMIME_COMPRESS (12 | SMIME_OP)
92: #define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
93: #define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
94: #define SMIME_SIGN_RECEIPT (15 | SMIME_IP | SMIME_OP)
95: #define SMIME_VERIFY_RECEIPT (16 | SMIME_IP)
96:
97: int verify_err = 0;
98:
99: int
100: cms_main(int argc, char **argv)
101: {
102: ENGINE *e = NULL;
103: int operation = 0;
104: int ret = 0;
105: char **args;
106: const char *inmode = "r", *outmode = "w";
107: char *infile = NULL, *outfile = NULL, *rctfile = NULL;
108: char *signerfile = NULL, *recipfile = NULL;
109: STACK_OF(OPENSSL_STRING) * sksigners = NULL, *skkeys = NULL;
110: char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
111: char *certsoutfile = NULL;
112: const EVP_CIPHER *cipher = NULL;
113: CMS_ContentInfo *cms = NULL, *rcms = NULL;
114: X509_STORE *store = NULL;
115: X509 *cert = NULL, *recip = NULL, *signer = NULL;
116: EVP_PKEY *key = NULL;
117: STACK_OF(X509) * encerts = NULL, *other = NULL;
118: BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
119: int badarg = 0;
120: int flags = CMS_DETACHED, noout = 0, print = 0;
121: int verify_retcode = 0;
122: int rr_print = 0, rr_allorfirst = -1;
123: STACK_OF(OPENSSL_STRING) * rr_to = NULL, *rr_from = NULL;
124: CMS_ReceiptRequest *rr = NULL;
125: char *to = NULL, *from = NULL, *subject = NULL;
126: char *CAfile = NULL, *CApath = NULL;
127: char *passargin = NULL, *passin = NULL;
128: const EVP_MD *sign_md = NULL;
129: int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
130: int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
131: #ifndef OPENSSL_NO_ENGINE
132: char *engine = NULL;
133: #endif
134: unsigned char *secret_key = NULL, *secret_keyid = NULL;
135: unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
136: size_t secret_keylen = 0, secret_keyidlen = 0;
137:
138: ASN1_OBJECT *econtent_type = NULL;
139:
140: X509_VERIFY_PARAM *vpm = NULL;
141:
142: args = argv + 1;
143: ret = 1;
144:
145: while (!badarg && *args && *args[0] == '-') {
146: if (!strcmp(*args, "-encrypt"))
147: operation = SMIME_ENCRYPT;
148: else if (!strcmp(*args, "-decrypt"))
149: operation = SMIME_DECRYPT;
150: else if (!strcmp(*args, "-sign"))
151: operation = SMIME_SIGN;
152: else if (!strcmp(*args, "-sign_receipt"))
153: operation = SMIME_SIGN_RECEIPT;
154: else if (!strcmp(*args, "-resign"))
155: operation = SMIME_RESIGN;
156: else if (!strcmp(*args, "-verify"))
157: operation = SMIME_VERIFY;
158: else if (!strcmp(*args, "-verify_retcode"))
159: verify_retcode = 1;
160: else if (!strcmp(*args, "-verify_receipt")) {
161: operation = SMIME_VERIFY_RECEIPT;
162: if (!args[1])
163: goto argerr;
164: args++;
165: rctfile = *args;
166: } else if (!strcmp(*args, "-cmsout"))
167: operation = SMIME_CMSOUT;
168: else if (!strcmp(*args, "-data_out"))
169: operation = SMIME_DATAOUT;
170: else if (!strcmp(*args, "-data_create"))
171: operation = SMIME_DATA_CREATE;
172: else if (!strcmp(*args, "-digest_verify"))
173: operation = SMIME_DIGEST_VERIFY;
174: else if (!strcmp(*args, "-digest_create"))
175: operation = SMIME_DIGEST_CREATE;
176: else if (!strcmp(*args, "-compress"))
177: operation = SMIME_COMPRESS;
178: else if (!strcmp(*args, "-uncompress"))
179: operation = SMIME_UNCOMPRESS;
180: else if (!strcmp(*args, "-EncryptedData_decrypt"))
181: operation = SMIME_ENCRYPTED_DECRYPT;
182: else if (!strcmp(*args, "-EncryptedData_encrypt"))
183: operation = SMIME_ENCRYPTED_ENCRYPT;
184: #ifndef OPENSSL_NO_DES
185: else if (!strcmp(*args, "-des3"))
186: cipher = EVP_des_ede3_cbc();
187: else if (!strcmp(*args, "-des"))
188: cipher = EVP_des_cbc();
189: #endif
190: #ifndef OPENSSL_NO_RC2
191: else if (!strcmp(*args, "-rc2-40"))
192: cipher = EVP_rc2_40_cbc();
193: else if (!strcmp(*args, "-rc2-128"))
194: cipher = EVP_rc2_cbc();
195: else if (!strcmp(*args, "-rc2-64"))
196: cipher = EVP_rc2_64_cbc();
197: #endif
198: #ifndef OPENSSL_NO_AES
199: else if (!strcmp(*args, "-aes128"))
200: cipher = EVP_aes_128_cbc();
201: else if (!strcmp(*args, "-aes192"))
202: cipher = EVP_aes_192_cbc();
203: else if (!strcmp(*args, "-aes256"))
204: cipher = EVP_aes_256_cbc();
205: #endif
206: #ifndef OPENSSL_NO_CAMELLIA
207: else if (!strcmp(*args, "-camellia128"))
208: cipher = EVP_camellia_128_cbc();
209: else if (!strcmp(*args, "-camellia192"))
210: cipher = EVP_camellia_192_cbc();
211: else if (!strcmp(*args, "-camellia256"))
212: cipher = EVP_camellia_256_cbc();
213: #endif
214: else if (!strcmp(*args, "-debug_decrypt"))
215: flags |= CMS_DEBUG_DECRYPT;
216: else if (!strcmp(*args, "-text"))
217: flags |= CMS_TEXT;
218: else if (!strcmp(*args, "-nointern"))
219: flags |= CMS_NOINTERN;
220: else if (!strcmp(*args, "-noverify") ||
221: !strcmp(*args, "-no_signer_cert_verify"))
222: flags |= CMS_NO_SIGNER_CERT_VERIFY;
223: else if (!strcmp(*args, "-nocerts"))
224: flags |= CMS_NOCERTS;
225: else if (!strcmp(*args, "-noattr"))
226: flags |= CMS_NOATTR;
227: else if (!strcmp(*args, "-nodetach"))
228: flags &= ~CMS_DETACHED;
229: else if (!strcmp(*args, "-nosmimecap"))
230: flags |= CMS_NOSMIMECAP;
231: else if (!strcmp(*args, "-binary"))
232: flags |= CMS_BINARY;
233: else if (!strcmp(*args, "-keyid"))
234: flags |= CMS_USE_KEYID;
235: else if (!strcmp(*args, "-nosigs"))
236: flags |= CMS_NOSIGS;
237: else if (!strcmp(*args, "-no_content_verify"))
238: flags |= CMS_NO_CONTENT_VERIFY;
239: else if (!strcmp(*args, "-no_attr_verify"))
240: flags |= CMS_NO_ATTR_VERIFY;
241: else if (!strcmp(*args, "-stream"))
242: flags |= CMS_STREAM;
243: else if (!strcmp(*args, "-indef"))
244: flags |= CMS_STREAM;
245: else if (!strcmp(*args, "-noindef"))
246: flags &= ~CMS_STREAM;
247: else if (!strcmp(*args, "-nooldmime"))
248: flags |= CMS_NOOLDMIMETYPE;
249: else if (!strcmp(*args, "-crlfeol"))
250: flags |= CMS_CRLFEOL;
251: else if (!strcmp(*args, "-noout"))
252: noout = 1;
253: else if (!strcmp(*args, "-receipt_request_print"))
254: rr_print = 1;
255: else if (!strcmp(*args, "-receipt_request_all"))
256: rr_allorfirst = 0;
257: else if (!strcmp(*args, "-receipt_request_first"))
258: rr_allorfirst = 1;
259: else if (!strcmp(*args, "-receipt_request_from")) {
260: if (!args[1])
261: goto argerr;
262: args++;
263: if (!rr_from)
264: rr_from = sk_OPENSSL_STRING_new_null();
265: sk_OPENSSL_STRING_push(rr_from, *args);
266: } else if (!strcmp(*args, "-receipt_request_to")) {
267: if (!args[1])
268: goto argerr;
269: args++;
270: if (!rr_to)
271: rr_to = sk_OPENSSL_STRING_new_null();
272: sk_OPENSSL_STRING_push(rr_to, *args);
273: } else if (!strcmp(*args, "-print")) {
274: noout = 1;
275: print = 1;
276: } else if (!strcmp(*args, "-secretkey")) {
277: long ltmp;
278: if (!args[1])
279: goto argerr;
280: args++;
281: secret_key = string_to_hex(*args, <mp);
282: if (!secret_key) {
283: BIO_printf(bio_err, "Invalid key %s\n", *args);
284: goto argerr;
285: }
286: secret_keylen = (size_t) ltmp;
287: } else if (!strcmp(*args, "-secretkeyid")) {
288: long ltmp;
289: if (!args[1])
290: goto argerr;
291: args++;
292: secret_keyid = string_to_hex(*args, <mp);
293: if (!secret_keyid) {
294: BIO_printf(bio_err, "Invalid id %s\n", *args);
295: goto argerr;
296: }
297: secret_keyidlen = (size_t) ltmp;
298: } else if (!strcmp(*args, "-pwri_password")) {
299: if (!args[1])
300: goto argerr;
301: args++;
302: pwri_pass = (unsigned char *) *args;
303: } else if (!strcmp(*args, "-econtent_type")) {
304: if (!args[1])
305: goto argerr;
306: args++;
307: econtent_type = OBJ_txt2obj(*args, 0);
308: if (!econtent_type) {
309: BIO_printf(bio_err, "Invalid OID %s\n", *args);
310: goto argerr;
311: }
312: }
313: #ifndef OPENSSL_NO_ENGINE
314: else if (!strcmp(*args, "-engine")) {
315: if (!args[1])
316: goto argerr;
317: engine = *++args;
318: }
319: #endif
320: else if (!strcmp(*args, "-passin")) {
321: if (!args[1])
322: goto argerr;
323: passargin = *++args;
324: } else if (!strcmp(*args, "-to")) {
325: if (!args[1])
326: goto argerr;
327: to = *++args;
328: } else if (!strcmp(*args, "-from")) {
329: if (!args[1])
330: goto argerr;
331: from = *++args;
332: } else if (!strcmp(*args, "-subject")) {
333: if (!args[1])
334: goto argerr;
335: subject = *++args;
336: } else if (!strcmp(*args, "-signer")) {
337: if (!args[1])
338: goto argerr;
339: /* If previous -signer argument add signer to list */
340:
341: if (signerfile) {
342: if (!sksigners)
343: sksigners =
344: sk_OPENSSL_STRING_new_null();
345: sk_OPENSSL_STRING_push(sksigners, signerfile);
346: if (!keyfile)
347: keyfile = signerfile;
348: if (!skkeys)
349: skkeys = sk_OPENSSL_STRING_new_null();
350: sk_OPENSSL_STRING_push(skkeys, keyfile);
351: keyfile = NULL;
352: }
353: signerfile = *++args;
354: } else if (!strcmp(*args, "-recip")) {
355: if (!args[1])
356: goto argerr;
357: recipfile = *++args;
358: } else if (!strcmp(*args, "-certsout")) {
359: if (!args[1])
360: goto argerr;
361: certsoutfile = *++args;
362: } else if (!strcmp(*args, "-md")) {
363: if (!args[1])
364: goto argerr;
365: sign_md = EVP_get_digestbyname(*++args);
366: if (sign_md == NULL) {
367: BIO_printf(bio_err, "Unknown digest %s\n",
368: *args);
369: goto argerr;
370: }
371: } else if (!strcmp(*args, "-inkey")) {
372: if (!args[1])
373: goto argerr;
374: /* If previous -inkey arument add signer to list */
375: if (keyfile) {
376: if (!signerfile) {
377: BIO_puts(bio_err,
378: "Illegal -inkey without -signer\n");
379: goto argerr;
380: }
381: if (!sksigners)
382: sksigners =
383: sk_OPENSSL_STRING_new_null();
384: sk_OPENSSL_STRING_push(sksigners, signerfile);
385: signerfile = NULL;
386: if (!skkeys)
387: skkeys = sk_OPENSSL_STRING_new_null();
388: sk_OPENSSL_STRING_push(skkeys, keyfile);
389: }
390: keyfile = *++args;
391: } else if (!strcmp(*args, "-keyform")) {
392: if (!args[1])
393: goto argerr;
394: keyform = str2fmt(*++args);
395: } else if (!strcmp(*args, "-rctform")) {
396: if (!args[1])
397: goto argerr;
398: rctformat = str2fmt(*++args);
399: } else if (!strcmp(*args, "-certfile")) {
400: if (!args[1])
401: goto argerr;
402: certfile = *++args;
403: } else if (!strcmp(*args, "-CAfile")) {
404: if (!args[1])
405: goto argerr;
406: CAfile = *++args;
407: } else if (!strcmp(*args, "-CApath")) {
408: if (!args[1])
409: goto argerr;
410: CApath = *++args;
411: } else if (!strcmp(*args, "-in")) {
412: if (!args[1])
413: goto argerr;
414: infile = *++args;
415: } else if (!strcmp(*args, "-inform")) {
416: if (!args[1])
417: goto argerr;
418: informat = str2fmt(*++args);
419: } else if (!strcmp(*args, "-outform")) {
420: if (!args[1])
421: goto argerr;
422: outformat = str2fmt(*++args);
423: } else if (!strcmp(*args, "-out")) {
424: if (!args[1])
425: goto argerr;
426: outfile = *++args;
427: } else if (!strcmp(*args, "-content")) {
428: if (!args[1])
429: goto argerr;
430: contfile = *++args;
431: } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
432: continue;
433: else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
434: badarg = 1;
435: args++;
436: }
437:
438: if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
439: BIO_puts(bio_err, "No Signed Receipts Recipients\n");
440: goto argerr;
441: }
442: if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
443: BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
444: goto argerr;
445: }
446: if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
447: BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
448: goto argerr;
449: }
450: if (operation & SMIME_SIGNERS) {
451: if (keyfile && !signerfile) {
452: BIO_puts(bio_err, "Illegal -inkey without -signer\n");
453: goto argerr;
454: }
455: /* Check to see if any final signer needs to be appended */
456: if (signerfile) {
457: if (!sksigners)
458: sksigners = sk_OPENSSL_STRING_new_null();
459: sk_OPENSSL_STRING_push(sksigners, signerfile);
460: if (!skkeys)
461: skkeys = sk_OPENSSL_STRING_new_null();
462: if (!keyfile)
463: keyfile = signerfile;
464: sk_OPENSSL_STRING_push(skkeys, keyfile);
465: }
466: if (!sksigners) {
467: BIO_printf(bio_err,
468: "No signer certificate specified\n");
469: badarg = 1;
470: }
471: signerfile = NULL;
472: keyfile = NULL;
473: } else if (operation == SMIME_DECRYPT) {
474: if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
475: BIO_printf(bio_err,
476: "No recipient certificate or key specified\n");
477: badarg = 1;
478: }
479: } else if (operation == SMIME_ENCRYPT) {
480: if (!*args && !secret_key && !pwri_pass) {
481: BIO_printf(bio_err,
482: "No recipient(s) certificate(s) specified\n");
483: badarg = 1;
484: }
485: } else if (!operation)
486: badarg = 1;
487:
488: if (badarg) {
489: argerr:
490: BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n");
491: BIO_printf(bio_err, "where options are\n");
492: BIO_printf(bio_err, "-encrypt encrypt message\n");
493: BIO_printf(bio_err, "-decrypt decrypt encrypted message\n");
494: BIO_printf(bio_err, "-sign sign message\n");
495: BIO_printf(bio_err, "-verify verify signed message\n");
496: BIO_printf(bio_err, "-cmsout output CMS structure\n");
497: #ifndef OPENSSL_NO_DES
498: BIO_printf(bio_err, "-des3 encrypt with triple DES\n");
499: BIO_printf(bio_err, "-des encrypt with DES\n");
500: #endif
501: #ifndef OPENSSL_NO_RC2
502: BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n");
503: BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n");
504: BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n");
505: #endif
506: #ifndef OPENSSL_NO_AES
507: BIO_printf(bio_err, "-aes128, -aes192, -aes256\n");
508: BIO_printf(bio_err, " encrypt PEM output with cbc aes\n");
509: #endif
510: #ifndef OPENSSL_NO_CAMELLIA
511: BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n");
512: BIO_printf(bio_err, " encrypt PEM output with cbc camellia\n");
513: #endif
514: BIO_printf(bio_err, "-nointern don't search certificates in message for signer\n");
515: BIO_printf(bio_err, "-nosigs don't verify message signature\n");
516: BIO_printf(bio_err, "-noverify don't verify signers certificate\n");
517: BIO_printf(bio_err, "-nocerts don't include signers certificate when signing\n");
518: BIO_printf(bio_err, "-nodetach use opaque signing\n");
519: BIO_printf(bio_err, "-noattr don't include any signed attributes\n");
520: BIO_printf(bio_err, "-binary don't translate message to text\n");
521: BIO_printf(bio_err, "-certfile file other certificates file\n");
522: BIO_printf(bio_err, "-certsout file certificate output file\n");
523: BIO_printf(bio_err, "-signer file signer certificate file\n");
524: BIO_printf(bio_err, "-recip file recipient certificate file for decryption\n");
525: BIO_printf(bio_err, "-keyid use subject key identifier\n");
526: BIO_printf(bio_err, "-in file input file\n");
527: BIO_printf(bio_err, "-inform arg input format SMIME (default), PEM or DER\n");
528: BIO_printf(bio_err, "-inkey file input private key (if not signer or recipient)\n");
529: BIO_printf(bio_err, "-keyform arg input private key format (PEM or ENGINE)\n");
530: BIO_printf(bio_err, "-out file output file\n");
531: BIO_printf(bio_err, "-outform arg output format SMIME (default), PEM or DER\n");
532: BIO_printf(bio_err, "-content file supply or override content for detached signature\n");
533: BIO_printf(bio_err, "-to addr to address\n");
534: BIO_printf(bio_err, "-from ad from address\n");
535: BIO_printf(bio_err, "-subject s subject\n");
536: BIO_printf(bio_err, "-text include or delete text MIME headers\n");
537: BIO_printf(bio_err, "-CApath dir trusted certificates directory\n");
538: BIO_printf(bio_err, "-CAfile file trusted certificates file\n");
539: BIO_printf(bio_err, "-crl_check check revocation status of signer's certificate using CRLs\n");
540: BIO_printf(bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
541: #ifndef OPENSSL_NO_ENGINE
542: BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
543: #endif
544: BIO_printf(bio_err, "-passin arg input file pass phrase source\n");
545: BIO_printf(bio_err, "cert.pem recipient certificate(s) for encryption\n");
546: goto end;
547: }
548: #ifndef OPENSSL_NO_ENGINE
549: e = setup_engine(bio_err, engine, 0);
550: #endif
551:
552: if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
553: BIO_printf(bio_err, "Error getting password\n");
554: goto end;
555: }
556: ret = 2;
557:
558: if (!(operation & SMIME_SIGNERS))
559: flags &= ~CMS_DETACHED;
560:
561: if (operation & SMIME_OP) {
562: if (outformat == FORMAT_ASN1)
563: outmode = "wb";
564: } else {
565: if (flags & CMS_BINARY)
566: outmode = "wb";
567: }
568:
569: if (operation & SMIME_IP) {
570: if (informat == FORMAT_ASN1)
571: inmode = "rb";
572: } else {
573: if (flags & CMS_BINARY)
574: inmode = "rb";
575: }
576:
577: if (operation == SMIME_ENCRYPT) {
578: if (!cipher) {
579: #ifndef OPENSSL_NO_DES
580: cipher = EVP_des_ede3_cbc();
581: #else
582: BIO_printf(bio_err, "No cipher selected\n");
583: goto end;
584: #endif
585: }
586: if (secret_key && !secret_keyid) {
587: BIO_printf(bio_err, "No secret key id\n");
588: goto end;
589: }
590: if (*args)
591: encerts = sk_X509_new_null();
592: while (*args) {
593: if (!(cert = load_cert(bio_err, *args, FORMAT_PEM,
594: NULL, e, "recipient certificate file")))
595: goto end;
596: sk_X509_push(encerts, cert);
597: cert = NULL;
598: args++;
599: }
600: }
601: if (certfile) {
602: if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL,
603: e, "certificate file"))) {
604: ERR_print_errors(bio_err);
605: goto end;
606: }
607: }
608: if (recipfile && (operation == SMIME_DECRYPT)) {
609: if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL,
610: e, "recipient certificate file"))) {
611: ERR_print_errors(bio_err);
612: goto end;
613: }
614: }
615: if (operation == SMIME_SIGN_RECEIPT) {
616: if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
617: e, "receipt signer certificate file"))) {
618: ERR_print_errors(bio_err);
619: goto end;
620: }
621: }
622: if (operation == SMIME_DECRYPT) {
623: if (!keyfile)
624: keyfile = recipfile;
625: } else if ((operation == SMIME_SIGN) ||
626: (operation == SMIME_SIGN_RECEIPT)) {
627: if (!keyfile)
628: keyfile = signerfile;
629: } else
630: keyfile = NULL;
631:
632: if (keyfile) {
633: key = load_key(bio_err, keyfile, keyform, 0, passin, e,
634: "signing key file");
635: if (!key)
636: goto end;
637: }
638: if (infile) {
639: if (!(in = BIO_new_file(infile, inmode))) {
640: BIO_printf(bio_err,
641: "Can't open input file %s\n", infile);
642: goto end;
643: }
644: } else
645: in = BIO_new_fp(stdin, BIO_NOCLOSE);
646:
647: if (operation & SMIME_IP) {
648: if (informat == FORMAT_SMIME)
649: cms = SMIME_read_CMS(in, &indata);
650: else if (informat == FORMAT_PEM)
651: cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
652: else if (informat == FORMAT_ASN1)
653: cms = d2i_CMS_bio(in, NULL);
654: else {
655: BIO_printf(bio_err, "Bad input format for CMS file\n");
656: goto end;
657: }
658:
659: if (!cms) {
660: BIO_printf(bio_err, "Error reading S/MIME message\n");
661: goto end;
662: }
663: if (contfile) {
664: BIO_free(indata);
665: if (!(indata = BIO_new_file(contfile, "rb"))) {
666: BIO_printf(bio_err,
667: "Can't read content file %s\n", contfile);
668: goto end;
669: }
670: }
671: if (certsoutfile) {
672: STACK_OF(X509) * allcerts;
673: allcerts = CMS_get1_certs(cms);
674: if (!save_certs(certsoutfile, allcerts)) {
675: BIO_printf(bio_err,
676: "Error writing certs to %s\n",
677: certsoutfile);
678: ret = 5;
679: goto end;
680: }
681: sk_X509_pop_free(allcerts, X509_free);
682: }
683: }
684: if (rctfile) {
685: char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
686: if (!(rctin = BIO_new_file(rctfile, rctmode))) {
687: BIO_printf(bio_err,
688: "Can't open receipt file %s\n", rctfile);
689: goto end;
690: }
691: if (rctformat == FORMAT_SMIME)
692: rcms = SMIME_read_CMS(rctin, NULL);
693: else if (rctformat == FORMAT_PEM)
694: rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
695: else if (rctformat == FORMAT_ASN1)
696: rcms = d2i_CMS_bio(rctin, NULL);
697: else {
698: BIO_printf(bio_err, "Bad input format for receipt\n");
699: goto end;
700: }
701:
702: if (!rcms) {
703: BIO_printf(bio_err, "Error reading receipt\n");
704: goto end;
705: }
706: }
707: if (outfile) {
708: if (!(out = BIO_new_file(outfile, outmode))) {
709: BIO_printf(bio_err,
710: "Can't open output file %s\n", outfile);
711: goto end;
712: }
713: } else {
714: out = BIO_new_fp(stdout, BIO_NOCLOSE);
715: }
716:
717: if ((operation == SMIME_VERIFY) ||
718: (operation == SMIME_VERIFY_RECEIPT)) {
719: if (!(store = setup_verify(bio_err, CAfile, CApath)))
720: goto end;
721: X509_STORE_set_verify_cb(store, cms_cb);
722: if (vpm)
723: X509_STORE_set1_param(store, vpm);
724: }
725: ret = 3;
726:
727: if (operation == SMIME_DATA_CREATE) {
728: cms = CMS_data_create(in, flags);
729: } else if (operation == SMIME_DIGEST_CREATE) {
730: cms = CMS_digest_create(in, sign_md, flags);
731: } else if (operation == SMIME_COMPRESS) {
732: cms = CMS_compress(in, -1, flags);
733: } else if (operation == SMIME_ENCRYPT) {
734: flags |= CMS_PARTIAL;
735: cms = CMS_encrypt(encerts, in, cipher, flags);
736: if (!cms)
737: goto end;
738: if (secret_key) {
739: if (!CMS_add0_recipient_key(cms, NID_undef, secret_key,
740: secret_keylen, secret_keyid, secret_keyidlen,
741: NULL, NULL, NULL))
742: goto end;
743: /* NULL these because call absorbs them */
744: secret_key = NULL;
745: secret_keyid = NULL;
746: }
747: if (pwri_pass) {
748: pwri_tmp = strdup(pwri_pass);
749: if (!pwri_tmp)
750: goto end;
751: if (!CMS_add0_recipient_password(cms, -1, NID_undef,
752: NID_undef, pwri_tmp, -1, NULL))
753: goto end;
754: pwri_tmp = NULL;
755: }
756: if (!(flags & CMS_STREAM)) {
757: if (!CMS_final(cms, in, NULL, flags))
758: goto end;
759: }
760: } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
761: cms = CMS_EncryptedData_encrypt(in, cipher, secret_key,
762: secret_keylen, flags);
763:
764: } else if (operation == SMIME_SIGN_RECEIPT) {
765: CMS_ContentInfo *srcms = NULL;
766: STACK_OF(CMS_SignerInfo) * sis;
767: CMS_SignerInfo *si;
768: sis = CMS_get0_SignerInfos(cms);
769: if (!sis)
770: goto end;
771: si = sk_CMS_SignerInfo_value(sis, 0);
772: srcms = CMS_sign_receipt(si, signer, key, other, flags);
773: if (!srcms)
774: goto end;
775: CMS_ContentInfo_free(cms);
776: cms = srcms;
777: } else if (operation & SMIME_SIGNERS) {
778: int i;
779: /*
780: * If detached data content we enable streaming if S/MIME
781: * output format.
782: */
783: if (operation == SMIME_SIGN) {
784:
785: if (flags & CMS_DETACHED) {
786: if (outformat == FORMAT_SMIME)
787: flags |= CMS_STREAM;
788: }
789: flags |= CMS_PARTIAL;
790: cms = CMS_sign(NULL, NULL, other, in, flags);
791: if (!cms)
792: goto end;
793: if (econtent_type)
794: CMS_set1_eContentType(cms, econtent_type);
795:
796: if (rr_to) {
797: rr = make_receipt_request(rr_to, rr_allorfirst,
798: rr_from);
799: if (!rr) {
800: BIO_puts(bio_err,
801: "Signed Receipt Request Creation Error\n");
802: goto end;
803: }
804: }
805: } else
806: flags |= CMS_REUSE_DIGEST;
807: for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
808: CMS_SignerInfo *si;
809: signerfile = sk_OPENSSL_STRING_value(sksigners, i);
810: keyfile = sk_OPENSSL_STRING_value(skkeys, i);
811: signer = load_cert(bio_err, signerfile, FORMAT_PEM,
812: NULL, e, "signer certificate");
813: if (!signer)
814: goto end;
815: key = load_key(bio_err, keyfile, keyform, 0, passin, e,
816: "signing key file");
817: if (!key)
818: goto end;
819: si = CMS_add1_signer(cms, signer, key, sign_md, flags);
820: if (!si)
821: goto end;
822: if (rr && !CMS_add1_ReceiptRequest(si, rr))
823: goto end;
824: X509_free(signer);
825: signer = NULL;
826: EVP_PKEY_free(key);
827: key = NULL;
828: }
829: /* If not streaming or resigning finalize structure */
830: if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
831: if (!CMS_final(cms, in, NULL, flags))
832: goto end;
833: }
834: }
835: if (!cms) {
836: BIO_printf(bio_err, "Error creating CMS structure\n");
837: goto end;
838: }
839: ret = 4;
840: if (operation == SMIME_DECRYPT) {
841: if (flags & CMS_DEBUG_DECRYPT)
842: CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
843:
844: if (secret_key) {
845: if (!CMS_decrypt_set1_key(cms, secret_key,
846: secret_keylen, secret_keyid, secret_keyidlen)) {
847: BIO_puts(bio_err,
848: "Error decrypting CMS using secret key\n");
849: goto end;
850: }
851: }
852: if (key) {
853: if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
854: BIO_puts(bio_err,
855: "Error decrypting CMS using private key\n");
856: goto end;
857: }
858: }
859: if (pwri_pass) {
860: if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
861: BIO_puts(bio_err,
862: "Error decrypting CMS using password\n");
863: goto end;
864: }
865: }
866: if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
867: BIO_printf(bio_err, "Error decrypting CMS structure\n");
868: goto end;
869: }
870: } else if (operation == SMIME_DATAOUT) {
871: if (!CMS_data(cms, out, flags))
872: goto end;
873: } else if (operation == SMIME_UNCOMPRESS) {
874: if (!CMS_uncompress(cms, indata, out, flags))
875: goto end;
876: } else if (operation == SMIME_DIGEST_VERIFY) {
877: if (CMS_digest_verify(cms, indata, out, flags) > 0)
878: BIO_printf(bio_err, "Verification successful\n");
879: else {
880: BIO_printf(bio_err, "Verification failure\n");
881: goto end;
882: }
883: } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
884: if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
885: indata, out, flags))
886: goto end;
887: } else if (operation == SMIME_VERIFY) {
888: if (CMS_verify(cms, other, store, indata, out, flags) > 0)
889: BIO_printf(bio_err, "Verification successful\n");
890: else {
891: BIO_printf(bio_err, "Verification failure\n");
892: if (verify_retcode)
893: ret = verify_err + 32;
894: goto end;
895: }
896: if (signerfile) {
897: STACK_OF(X509) * signers;
898: signers = CMS_get0_signers(cms);
899: if (!save_certs(signerfile, signers)) {
900: BIO_printf(bio_err,
901: "Error writing signers to %s\n",
902: signerfile);
903: ret = 5;
904: goto end;
905: }
906: sk_X509_free(signers);
907: }
908: if (rr_print)
909: receipt_request_print(bio_err, cms);
910:
911: } else if (operation == SMIME_VERIFY_RECEIPT) {
912: if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
913: BIO_printf(bio_err, "Verification successful\n");
914: else {
915: BIO_printf(bio_err, "Verification failure\n");
916: goto end;
917: }
918: } else {
919: if (noout) {
920: if (print)
921: CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
922: } else if (outformat == FORMAT_SMIME) {
923: if (to)
924: BIO_printf(out, "To: %s\n", to);
925: if (from)
926: BIO_printf(out, "From: %s\n", from);
927: if (subject)
928: BIO_printf(out, "Subject: %s\n", subject);
929: if (operation == SMIME_RESIGN)
930: ret = SMIME_write_CMS(out, cms, indata, flags);
931: else
932: ret = SMIME_write_CMS(out, cms, in, flags);
933: } else if (outformat == FORMAT_PEM)
934: ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
935: else if (outformat == FORMAT_ASN1)
936: ret = i2d_CMS_bio_stream(out, cms, in, flags);
937: else {
938: BIO_printf(bio_err, "Bad output format for CMS file\n");
939: goto end;
940: }
941: if (ret <= 0) {
942: ret = 6;
943: goto end;
944: }
945: }
946: ret = 0;
947:
948: end:
949: if (ret)
950: ERR_print_errors(bio_err);
951: sk_X509_pop_free(encerts, X509_free);
952: sk_X509_pop_free(other, X509_free);
953: if (vpm)
954: X509_VERIFY_PARAM_free(vpm);
955: if (sksigners)
956: sk_OPENSSL_STRING_free(sksigners);
957: if (skkeys)
958: sk_OPENSSL_STRING_free(skkeys);
959: free(secret_key);
960: free(secret_keyid);
961: free(pwri_tmp);
962: if (econtent_type)
963: ASN1_OBJECT_free(econtent_type);
964: if (rr)
965: CMS_ReceiptRequest_free(rr);
966: if (rr_to)
967: sk_OPENSSL_STRING_free(rr_to);
968: if (rr_from)
969: sk_OPENSSL_STRING_free(rr_from);
970: X509_STORE_free(store);
971: X509_free(cert);
972: X509_free(recip);
973: X509_free(signer);
974: EVP_PKEY_free(key);
975: CMS_ContentInfo_free(cms);
976: CMS_ContentInfo_free(rcms);
977: BIO_free(rctin);
978: BIO_free(in);
979: BIO_free(indata);
980: BIO_free_all(out);
981: free(passin);
982: return (ret);
983: }
984:
985: static int
986: save_certs(char *signerfile, STACK_OF(X509) * signers)
987: {
988: int i;
989: BIO *tmp;
990:
991: if (!signerfile)
992: return 1;
993: tmp = BIO_new_file(signerfile, "w");
994: if (!tmp)
995: return 0;
996: for (i = 0; i < sk_X509_num(signers); i++)
997: PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
998: BIO_free(tmp);
999: return 1;
1000: }
1001:
1002: /* Minimal callback just to output policy info (if any) */
1003:
1004: static int
1005: cms_cb(int ok, X509_STORE_CTX * ctx)
1006: {
1007: int error;
1008:
1009: error = X509_STORE_CTX_get_error(ctx);
1010:
1011: verify_err = error;
1012:
1013: if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) &&
1014: ((error != X509_V_OK) || (ok != 2)))
1015: return ok;
1016:
1017: policies_print(NULL, ctx);
1018:
1019: return ok;
1020: }
1021:
1022: static void
1023: gnames_stack_print(BIO * out, STACK_OF(GENERAL_NAMES) * gns)
1024: {
1025: STACK_OF(GENERAL_NAME) * gens;
1026: GENERAL_NAME *gen;
1027: int i, j;
1028:
1029: for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1030: gens = sk_GENERAL_NAMES_value(gns, i);
1031: for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1032: gen = sk_GENERAL_NAME_value(gens, j);
1033: BIO_puts(out, " ");
1034: GENERAL_NAME_print(out, gen);
1035: BIO_puts(out, "\n");
1036: }
1037: }
1038: return;
1039: }
1040:
1041: static void
1042: receipt_request_print(BIO * out, CMS_ContentInfo * cms)
1043: {
1044: STACK_OF(CMS_SignerInfo) * sis;
1045: CMS_SignerInfo *si;
1046: CMS_ReceiptRequest *rr;
1047: int allorfirst;
1048: STACK_OF(GENERAL_NAMES) * rto, *rlist;
1049: ASN1_STRING *scid;
1050: int i, rv;
1051:
1052: sis = CMS_get0_SignerInfos(cms);
1053: for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1054: si = sk_CMS_SignerInfo_value(sis, i);
1055: rv = CMS_get1_ReceiptRequest(si, &rr);
1056: BIO_printf(bio_err, "Signer %d:\n", i + 1);
1057: if (rv == 0)
1058: BIO_puts(bio_err, " No Receipt Request\n");
1059: else if (rv < 0) {
1060: BIO_puts(bio_err, " Receipt Request Parse Error\n");
1061: ERR_print_errors(bio_err);
1062: } else {
1063: char *id;
1064: int idlen;
1065: CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1066: &rlist, &rto);
1067: BIO_puts(out, " Signed Content ID:\n");
1068: idlen = ASN1_STRING_length(scid);
1069: id = (char *) ASN1_STRING_data(scid);
1070: BIO_dump_indent(out, id, idlen, 4);
1071: BIO_puts(out, " Receipts From");
1072: if (rlist) {
1073: BIO_puts(out, " List:\n");
1074: gnames_stack_print(out, rlist);
1075: } else if (allorfirst == 1)
1076: BIO_puts(out, ": First Tier\n");
1077: else if (allorfirst == 0)
1078: BIO_puts(out, ": All\n");
1079: else
1080: BIO_printf(out, " Unknown (%d)\n", allorfirst);
1081: BIO_puts(out, " Receipts To:\n");
1082: gnames_stack_print(out, rto);
1083: }
1084: if (rr)
1085: CMS_ReceiptRequest_free(rr);
1086: }
1087: }
1088:
1089: static STACK_OF(GENERAL_NAMES) *
1090: make_names_stack(STACK_OF(OPENSSL_STRING) * ns)
1091: {
1092: int i;
1093: STACK_OF(GENERAL_NAMES) * ret;
1094: GENERAL_NAMES *gens = NULL;
1095: GENERAL_NAME *gen = NULL;
1096: ret = sk_GENERAL_NAMES_new_null();
1097: if (!ret)
1098: goto err;
1099: for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1100: char *str = sk_OPENSSL_STRING_value(ns, i);
1101: gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1102: if (!gen)
1103: goto err;
1104: gens = GENERAL_NAMES_new();
1105: if (!gens)
1106: goto err;
1107: if (!sk_GENERAL_NAME_push(gens, gen))
1108: goto err;
1109: gen = NULL;
1110: if (!sk_GENERAL_NAMES_push(ret, gens))
1111: goto err;
1112: gens = NULL;
1113: }
1114:
1115: return ret;
1116:
1117: err:
1118: if (ret)
1119: sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1120: if (gens)
1121: GENERAL_NAMES_free(gens);
1122: if (gen)
1123: GENERAL_NAME_free(gen);
1124: return NULL;
1125: }
1126:
1127:
1128: static CMS_ReceiptRequest *
1129: make_receipt_request(STACK_OF(OPENSSL_STRING) * rr_to, int rr_allorfirst,
1130: STACK_OF(OPENSSL_STRING) * rr_from)
1131: {
1132: STACK_OF(GENERAL_NAMES) * rct_to, *rct_from;
1133: CMS_ReceiptRequest *rr;
1134:
1135: rct_to = make_names_stack(rr_to);
1136: if (!rct_to)
1137: goto err;
1138: if (rr_from) {
1139: rct_from = make_names_stack(rr_from);
1140: if (!rct_from)
1141: goto err;
1142: } else
1143: rct_from = NULL;
1144: rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1145: rct_to);
1146: return rr;
1147:
1148: err:
1149: return NULL;
1150: }
1151:
1152: #endif