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1.8 ! jsing 1: /* $OpenBSD: cms.c,v 1.7 2016/09/04 18:05:34 beck dead $ */
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: int operation = 0;
103: int ret = 0;
104: char **args;
105: const char *inmode = "r", *outmode = "w";
106: char *infile = NULL, *outfile = NULL, *rctfile = NULL;
107: char *signerfile = NULL, *recipfile = NULL;
108: STACK_OF(OPENSSL_STRING) * sksigners = NULL, *skkeys = NULL;
109: char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
110: char *certsoutfile = NULL;
111: const EVP_CIPHER *cipher = NULL;
112: CMS_ContentInfo *cms = NULL, *rcms = NULL;
113: X509_STORE *store = NULL;
114: X509 *cert = NULL, *recip = NULL, *signer = NULL;
115: EVP_PKEY *key = NULL;
116: STACK_OF(X509) * encerts = NULL, *other = NULL;
117: BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
118: int badarg = 0;
119: int flags = CMS_DETACHED, noout = 0, print = 0;
120: int verify_retcode = 0;
121: int rr_print = 0, rr_allorfirst = -1;
122: STACK_OF(OPENSSL_STRING) * rr_to = NULL, *rr_from = NULL;
123: CMS_ReceiptRequest *rr = NULL;
124: char *to = NULL, *from = NULL, *subject = NULL;
125: char *CAfile = NULL, *CApath = NULL;
126: char *passargin = NULL, *passin = NULL;
127: const EVP_MD *sign_md = NULL;
128: int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
129: int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
130: unsigned char *secret_key = NULL, *secret_keyid = NULL;
131: unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
132: size_t secret_keylen = 0, secret_keyidlen = 0;
133:
134: ASN1_OBJECT *econtent_type = NULL;
135:
136: X509_VERIFY_PARAM *vpm = NULL;
1.4 doug 137:
138: if (single_execution) {
1.6 doug 139: if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
1.4 doug 140: perror("pledge");
1.6 doug 141: exit(1);
142: }
1.4 doug 143: }
1.1 jsing 144:
145: args = argv + 1;
146: ret = 1;
147:
148: while (!badarg && *args && *args[0] == '-') {
149: if (!strcmp(*args, "-encrypt"))
150: operation = SMIME_ENCRYPT;
151: else if (!strcmp(*args, "-decrypt"))
152: operation = SMIME_DECRYPT;
153: else if (!strcmp(*args, "-sign"))
154: operation = SMIME_SIGN;
155: else if (!strcmp(*args, "-sign_receipt"))
156: operation = SMIME_SIGN_RECEIPT;
157: else if (!strcmp(*args, "-resign"))
158: operation = SMIME_RESIGN;
159: else if (!strcmp(*args, "-verify"))
160: operation = SMIME_VERIFY;
161: else if (!strcmp(*args, "-verify_retcode"))
162: verify_retcode = 1;
163: else if (!strcmp(*args, "-verify_receipt")) {
164: operation = SMIME_VERIFY_RECEIPT;
165: if (!args[1])
166: goto argerr;
167: args++;
168: rctfile = *args;
169: } else if (!strcmp(*args, "-cmsout"))
170: operation = SMIME_CMSOUT;
171: else if (!strcmp(*args, "-data_out"))
172: operation = SMIME_DATAOUT;
173: else if (!strcmp(*args, "-data_create"))
174: operation = SMIME_DATA_CREATE;
175: else if (!strcmp(*args, "-digest_verify"))
176: operation = SMIME_DIGEST_VERIFY;
177: else if (!strcmp(*args, "-digest_create"))
178: operation = SMIME_DIGEST_CREATE;
179: else if (!strcmp(*args, "-compress"))
180: operation = SMIME_COMPRESS;
181: else if (!strcmp(*args, "-uncompress"))
182: operation = SMIME_UNCOMPRESS;
183: else if (!strcmp(*args, "-EncryptedData_decrypt"))
184: operation = SMIME_ENCRYPTED_DECRYPT;
185: else if (!strcmp(*args, "-EncryptedData_encrypt"))
186: operation = SMIME_ENCRYPTED_ENCRYPT;
187: #ifndef OPENSSL_NO_DES
188: else if (!strcmp(*args, "-des3"))
189: cipher = EVP_des_ede3_cbc();
190: else if (!strcmp(*args, "-des"))
191: cipher = EVP_des_cbc();
192: #endif
193: #ifndef OPENSSL_NO_RC2
194: else if (!strcmp(*args, "-rc2-40"))
195: cipher = EVP_rc2_40_cbc();
196: else if (!strcmp(*args, "-rc2-128"))
197: cipher = EVP_rc2_cbc();
198: else if (!strcmp(*args, "-rc2-64"))
199: cipher = EVP_rc2_64_cbc();
200: #endif
201: #ifndef OPENSSL_NO_AES
202: else if (!strcmp(*args, "-aes128"))
203: cipher = EVP_aes_128_cbc();
204: else if (!strcmp(*args, "-aes192"))
205: cipher = EVP_aes_192_cbc();
206: else if (!strcmp(*args, "-aes256"))
207: cipher = EVP_aes_256_cbc();
208: #endif
209: #ifndef OPENSSL_NO_CAMELLIA
210: else if (!strcmp(*args, "-camellia128"))
211: cipher = EVP_camellia_128_cbc();
212: else if (!strcmp(*args, "-camellia192"))
213: cipher = EVP_camellia_192_cbc();
214: else if (!strcmp(*args, "-camellia256"))
215: cipher = EVP_camellia_256_cbc();
216: #endif
217: else if (!strcmp(*args, "-debug_decrypt"))
218: flags |= CMS_DEBUG_DECRYPT;
219: else if (!strcmp(*args, "-text"))
220: flags |= CMS_TEXT;
221: else if (!strcmp(*args, "-nointern"))
222: flags |= CMS_NOINTERN;
223: else if (!strcmp(*args, "-noverify") ||
224: !strcmp(*args, "-no_signer_cert_verify"))
225: flags |= CMS_NO_SIGNER_CERT_VERIFY;
226: else if (!strcmp(*args, "-nocerts"))
227: flags |= CMS_NOCERTS;
228: else if (!strcmp(*args, "-noattr"))
229: flags |= CMS_NOATTR;
230: else if (!strcmp(*args, "-nodetach"))
231: flags &= ~CMS_DETACHED;
232: else if (!strcmp(*args, "-nosmimecap"))
233: flags |= CMS_NOSMIMECAP;
234: else if (!strcmp(*args, "-binary"))
235: flags |= CMS_BINARY;
236: else if (!strcmp(*args, "-keyid"))
237: flags |= CMS_USE_KEYID;
238: else if (!strcmp(*args, "-nosigs"))
239: flags |= CMS_NOSIGS;
240: else if (!strcmp(*args, "-no_content_verify"))
241: flags |= CMS_NO_CONTENT_VERIFY;
242: else if (!strcmp(*args, "-no_attr_verify"))
243: flags |= CMS_NO_ATTR_VERIFY;
244: else if (!strcmp(*args, "-stream"))
245: flags |= CMS_STREAM;
246: else if (!strcmp(*args, "-indef"))
247: flags |= CMS_STREAM;
248: else if (!strcmp(*args, "-noindef"))
249: flags &= ~CMS_STREAM;
250: else if (!strcmp(*args, "-nooldmime"))
251: flags |= CMS_NOOLDMIMETYPE;
252: else if (!strcmp(*args, "-crlfeol"))
253: flags |= CMS_CRLFEOL;
254: else if (!strcmp(*args, "-noout"))
255: noout = 1;
256: else if (!strcmp(*args, "-receipt_request_print"))
257: rr_print = 1;
258: else if (!strcmp(*args, "-receipt_request_all"))
259: rr_allorfirst = 0;
260: else if (!strcmp(*args, "-receipt_request_first"))
261: rr_allorfirst = 1;
262: else if (!strcmp(*args, "-receipt_request_from")) {
263: if (!args[1])
264: goto argerr;
265: args++;
266: if (!rr_from)
267: rr_from = sk_OPENSSL_STRING_new_null();
268: sk_OPENSSL_STRING_push(rr_from, *args);
269: } else if (!strcmp(*args, "-receipt_request_to")) {
270: if (!args[1])
271: goto argerr;
272: args++;
273: if (!rr_to)
274: rr_to = sk_OPENSSL_STRING_new_null();
275: sk_OPENSSL_STRING_push(rr_to, *args);
276: } else if (!strcmp(*args, "-print")) {
277: noout = 1;
278: print = 1;
279: } else if (!strcmp(*args, "-secretkey")) {
280: long ltmp;
281: if (!args[1])
282: goto argerr;
283: args++;
284: secret_key = string_to_hex(*args, <mp);
285: if (!secret_key) {
286: BIO_printf(bio_err, "Invalid key %s\n", *args);
287: goto argerr;
288: }
289: secret_keylen = (size_t) ltmp;
290: } else if (!strcmp(*args, "-secretkeyid")) {
291: long ltmp;
292: if (!args[1])
293: goto argerr;
294: args++;
295: secret_keyid = string_to_hex(*args, <mp);
296: if (!secret_keyid) {
297: BIO_printf(bio_err, "Invalid id %s\n", *args);
298: goto argerr;
299: }
300: secret_keyidlen = (size_t) ltmp;
301: } else if (!strcmp(*args, "-pwri_password")) {
302: if (!args[1])
303: goto argerr;
304: args++;
305: pwri_pass = (unsigned char *) *args;
306: } else if (!strcmp(*args, "-econtent_type")) {
307: if (!args[1])
308: goto argerr;
309: args++;
310: econtent_type = OBJ_txt2obj(*args, 0);
311: if (!econtent_type) {
312: BIO_printf(bio_err, "Invalid OID %s\n", *args);
313: goto argerr;
314: }
315: }
316: else if (!strcmp(*args, "-passin")) {
317: if (!args[1])
318: goto argerr;
319: passargin = *++args;
320: } else if (!strcmp(*args, "-to")) {
321: if (!args[1])
322: goto argerr;
323: to = *++args;
324: } else if (!strcmp(*args, "-from")) {
325: if (!args[1])
326: goto argerr;
327: from = *++args;
328: } else if (!strcmp(*args, "-subject")) {
329: if (!args[1])
330: goto argerr;
331: subject = *++args;
332: } else if (!strcmp(*args, "-signer")) {
333: if (!args[1])
334: goto argerr;
335: /* If previous -signer argument add signer to list */
336:
337: if (signerfile) {
338: if (!sksigners)
339: sksigners =
340: sk_OPENSSL_STRING_new_null();
341: sk_OPENSSL_STRING_push(sksigners, signerfile);
342: if (!keyfile)
343: keyfile = signerfile;
344: if (!skkeys)
345: skkeys = sk_OPENSSL_STRING_new_null();
346: sk_OPENSSL_STRING_push(skkeys, keyfile);
347: keyfile = NULL;
348: }
349: signerfile = *++args;
350: } else if (!strcmp(*args, "-recip")) {
351: if (!args[1])
352: goto argerr;
353: recipfile = *++args;
354: } else if (!strcmp(*args, "-certsout")) {
355: if (!args[1])
356: goto argerr;
357: certsoutfile = *++args;
358: } else if (!strcmp(*args, "-md")) {
359: if (!args[1])
360: goto argerr;
361: sign_md = EVP_get_digestbyname(*++args);
362: if (sign_md == NULL) {
363: BIO_printf(bio_err, "Unknown digest %s\n",
364: *args);
365: goto argerr;
366: }
367: } else if (!strcmp(*args, "-inkey")) {
368: if (!args[1])
369: goto argerr;
370: /* If previous -inkey arument add signer to list */
371: if (keyfile) {
372: if (!signerfile) {
373: BIO_puts(bio_err,
374: "Illegal -inkey without -signer\n");
375: goto argerr;
376: }
377: if (!sksigners)
378: sksigners =
379: sk_OPENSSL_STRING_new_null();
380: sk_OPENSSL_STRING_push(sksigners, signerfile);
381: signerfile = NULL;
382: if (!skkeys)
383: skkeys = sk_OPENSSL_STRING_new_null();
384: sk_OPENSSL_STRING_push(skkeys, keyfile);
385: }
386: keyfile = *++args;
387: } else if (!strcmp(*args, "-keyform")) {
388: if (!args[1])
389: goto argerr;
390: keyform = str2fmt(*++args);
391: } else if (!strcmp(*args, "-rctform")) {
392: if (!args[1])
393: goto argerr;
394: rctformat = str2fmt(*++args);
395: } else if (!strcmp(*args, "-certfile")) {
396: if (!args[1])
397: goto argerr;
398: certfile = *++args;
399: } else if (!strcmp(*args, "-CAfile")) {
400: if (!args[1])
401: goto argerr;
402: CAfile = *++args;
403: } else if (!strcmp(*args, "-CApath")) {
404: if (!args[1])
405: goto argerr;
406: CApath = *++args;
407: } else if (!strcmp(*args, "-in")) {
408: if (!args[1])
409: goto argerr;
410: infile = *++args;
411: } else if (!strcmp(*args, "-inform")) {
412: if (!args[1])
413: goto argerr;
414: informat = str2fmt(*++args);
415: } else if (!strcmp(*args, "-outform")) {
416: if (!args[1])
417: goto argerr;
418: outformat = str2fmt(*++args);
419: } else if (!strcmp(*args, "-out")) {
420: if (!args[1])
421: goto argerr;
422: outfile = *++args;
423: } else if (!strcmp(*args, "-content")) {
424: if (!args[1])
425: goto argerr;
426: contfile = *++args;
427: } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
428: continue;
429: else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
430: badarg = 1;
431: args++;
432: }
433:
434: if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
435: BIO_puts(bio_err, "No Signed Receipts Recipients\n");
436: goto argerr;
437: }
438: if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
439: BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
440: goto argerr;
441: }
442: if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
443: BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
444: goto argerr;
445: }
446: if (operation & SMIME_SIGNERS) {
447: if (keyfile && !signerfile) {
448: BIO_puts(bio_err, "Illegal -inkey without -signer\n");
449: goto argerr;
450: }
451: /* Check to see if any final signer needs to be appended */
452: if (signerfile) {
453: if (!sksigners)
454: sksigners = sk_OPENSSL_STRING_new_null();
455: sk_OPENSSL_STRING_push(sksigners, signerfile);
456: if (!skkeys)
457: skkeys = sk_OPENSSL_STRING_new_null();
458: if (!keyfile)
459: keyfile = signerfile;
460: sk_OPENSSL_STRING_push(skkeys, keyfile);
461: }
462: if (!sksigners) {
463: BIO_printf(bio_err,
464: "No signer certificate specified\n");
465: badarg = 1;
466: }
467: signerfile = NULL;
468: keyfile = NULL;
469: } else if (operation == SMIME_DECRYPT) {
470: if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
471: BIO_printf(bio_err,
472: "No recipient certificate or key specified\n");
473: badarg = 1;
474: }
475: } else if (operation == SMIME_ENCRYPT) {
476: if (!*args && !secret_key && !pwri_pass) {
477: BIO_printf(bio_err,
478: "No recipient(s) certificate(s) specified\n");
479: badarg = 1;
480: }
481: } else if (!operation)
482: badarg = 1;
483:
484: if (badarg) {
485: argerr:
486: BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n");
487: BIO_printf(bio_err, "where options are\n");
488: BIO_printf(bio_err, "-encrypt encrypt message\n");
489: BIO_printf(bio_err, "-decrypt decrypt encrypted message\n");
490: BIO_printf(bio_err, "-sign sign message\n");
491: BIO_printf(bio_err, "-verify verify signed message\n");
492: BIO_printf(bio_err, "-cmsout output CMS structure\n");
493: #ifndef OPENSSL_NO_DES
494: BIO_printf(bio_err, "-des3 encrypt with triple DES\n");
495: BIO_printf(bio_err, "-des encrypt with DES\n");
496: #endif
497: #ifndef OPENSSL_NO_RC2
498: BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n");
499: BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n");
500: BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n");
501: #endif
502: #ifndef OPENSSL_NO_AES
503: BIO_printf(bio_err, "-aes128, -aes192, -aes256\n");
504: BIO_printf(bio_err, " encrypt PEM output with cbc aes\n");
505: #endif
506: #ifndef OPENSSL_NO_CAMELLIA
507: BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n");
508: BIO_printf(bio_err, " encrypt PEM output with cbc camellia\n");
509: #endif
510: BIO_printf(bio_err, "-nointern don't search certificates in message for signer\n");
511: BIO_printf(bio_err, "-nosigs don't verify message signature\n");
512: BIO_printf(bio_err, "-noverify don't verify signers certificate\n");
513: BIO_printf(bio_err, "-nocerts don't include signers certificate when signing\n");
514: BIO_printf(bio_err, "-nodetach use opaque signing\n");
515: BIO_printf(bio_err, "-noattr don't include any signed attributes\n");
516: BIO_printf(bio_err, "-binary don't translate message to text\n");
517: BIO_printf(bio_err, "-certfile file other certificates file\n");
518: BIO_printf(bio_err, "-certsout file certificate output file\n");
519: BIO_printf(bio_err, "-signer file signer certificate file\n");
520: BIO_printf(bio_err, "-recip file recipient certificate file for decryption\n");
521: BIO_printf(bio_err, "-keyid use subject key identifier\n");
522: BIO_printf(bio_err, "-in file input file\n");
523: BIO_printf(bio_err, "-inform arg input format SMIME (default), PEM or DER\n");
524: BIO_printf(bio_err, "-inkey file input private key (if not signer or recipient)\n");
1.3 bcook 525: BIO_printf(bio_err, "-keyform arg input private key format (PEM)\n");
1.1 jsing 526: BIO_printf(bio_err, "-out file output file\n");
527: BIO_printf(bio_err, "-outform arg output format SMIME (default), PEM or DER\n");
528: BIO_printf(bio_err, "-content file supply or override content for detached signature\n");
529: BIO_printf(bio_err, "-to addr to address\n");
530: BIO_printf(bio_err, "-from ad from address\n");
531: BIO_printf(bio_err, "-subject s subject\n");
532: BIO_printf(bio_err, "-text include or delete text MIME headers\n");
533: BIO_printf(bio_err, "-CApath dir trusted certificates directory\n");
534: BIO_printf(bio_err, "-CAfile file trusted certificates file\n");
535: BIO_printf(bio_err, "-crl_check check revocation status of signer's certificate using CRLs\n");
536: BIO_printf(bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
537: BIO_printf(bio_err, "-passin arg input file pass phrase source\n");
538: BIO_printf(bio_err, "cert.pem recipient certificate(s) for encryption\n");
539: goto end;
540: }
541:
542: if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
543: BIO_printf(bio_err, "Error getting password\n");
544: goto end;
545: }
546: ret = 2;
547:
548: if (!(operation & SMIME_SIGNERS))
549: flags &= ~CMS_DETACHED;
550:
551: if (operation & SMIME_OP) {
552: if (outformat == FORMAT_ASN1)
553: outmode = "wb";
554: } else {
555: if (flags & CMS_BINARY)
556: outmode = "wb";
557: }
558:
559: if (operation & SMIME_IP) {
560: if (informat == FORMAT_ASN1)
561: inmode = "rb";
562: } else {
563: if (flags & CMS_BINARY)
564: inmode = "rb";
565: }
566:
567: if (operation == SMIME_ENCRYPT) {
568: if (!cipher) {
569: #ifndef OPENSSL_NO_DES
570: cipher = EVP_des_ede3_cbc();
571: #else
572: BIO_printf(bio_err, "No cipher selected\n");
573: goto end;
574: #endif
575: }
576: if (secret_key && !secret_keyid) {
577: BIO_printf(bio_err, "No secret key id\n");
578: goto end;
579: }
580: if (*args)
581: encerts = sk_X509_new_null();
582: while (*args) {
583: if (!(cert = load_cert(bio_err, *args, FORMAT_PEM,
584: NULL, e, "recipient certificate file")))
585: goto end;
586: sk_X509_push(encerts, cert);
587: cert = NULL;
588: args++;
589: }
590: }
591: if (certfile) {
592: if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL,
593: e, "certificate file"))) {
594: ERR_print_errors(bio_err);
595: goto end;
596: }
597: }
598: if (recipfile && (operation == SMIME_DECRYPT)) {
599: if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL,
600: e, "recipient certificate file"))) {
601: ERR_print_errors(bio_err);
602: goto end;
603: }
604: }
605: if (operation == SMIME_SIGN_RECEIPT) {
606: if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
607: e, "receipt signer certificate file"))) {
608: ERR_print_errors(bio_err);
609: goto end;
610: }
611: }
612: if (operation == SMIME_DECRYPT) {
613: if (!keyfile)
614: keyfile = recipfile;
615: } else if ((operation == SMIME_SIGN) ||
616: (operation == SMIME_SIGN_RECEIPT)) {
617: if (!keyfile)
618: keyfile = signerfile;
619: } else
620: keyfile = NULL;
621:
622: if (keyfile) {
623: key = load_key(bio_err, keyfile, keyform, 0, passin, e,
624: "signing key file");
625: if (!key)
626: goto end;
627: }
628: if (infile) {
629: if (!(in = BIO_new_file(infile, inmode))) {
630: BIO_printf(bio_err,
631: "Can't open input file %s\n", infile);
632: goto end;
633: }
634: } else
635: in = BIO_new_fp(stdin, BIO_NOCLOSE);
636:
637: if (operation & SMIME_IP) {
638: if (informat == FORMAT_SMIME)
639: cms = SMIME_read_CMS(in, &indata);
640: else if (informat == FORMAT_PEM)
641: cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
642: else if (informat == FORMAT_ASN1)
643: cms = d2i_CMS_bio(in, NULL);
644: else {
645: BIO_printf(bio_err, "Bad input format for CMS file\n");
646: goto end;
647: }
648:
649: if (!cms) {
650: BIO_printf(bio_err, "Error reading S/MIME message\n");
651: goto end;
652: }
653: if (contfile) {
654: BIO_free(indata);
655: if (!(indata = BIO_new_file(contfile, "rb"))) {
656: BIO_printf(bio_err,
657: "Can't read content file %s\n", contfile);
658: goto end;
659: }
660: }
661: if (certsoutfile) {
662: STACK_OF(X509) * allcerts;
663: allcerts = CMS_get1_certs(cms);
664: if (!save_certs(certsoutfile, allcerts)) {
665: BIO_printf(bio_err,
666: "Error writing certs to %s\n",
667: certsoutfile);
668: ret = 5;
669: goto end;
670: }
671: sk_X509_pop_free(allcerts, X509_free);
672: }
673: }
674: if (rctfile) {
675: char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
676: if (!(rctin = BIO_new_file(rctfile, rctmode))) {
677: BIO_printf(bio_err,
678: "Can't open receipt file %s\n", rctfile);
679: goto end;
680: }
681: if (rctformat == FORMAT_SMIME)
682: rcms = SMIME_read_CMS(rctin, NULL);
683: else if (rctformat == FORMAT_PEM)
684: rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
685: else if (rctformat == FORMAT_ASN1)
686: rcms = d2i_CMS_bio(rctin, NULL);
687: else {
688: BIO_printf(bio_err, "Bad input format for receipt\n");
689: goto end;
690: }
691:
692: if (!rcms) {
693: BIO_printf(bio_err, "Error reading receipt\n");
694: goto end;
695: }
696: }
697: if (outfile) {
698: if (!(out = BIO_new_file(outfile, outmode))) {
699: BIO_printf(bio_err,
700: "Can't open output file %s\n", outfile);
701: goto end;
702: }
703: } else {
704: out = BIO_new_fp(stdout, BIO_NOCLOSE);
705: }
706:
707: if ((operation == SMIME_VERIFY) ||
708: (operation == SMIME_VERIFY_RECEIPT)) {
709: if (!(store = setup_verify(bio_err, CAfile, CApath)))
710: goto end;
711: X509_STORE_set_verify_cb(store, cms_cb);
712: if (vpm)
713: X509_STORE_set1_param(store, vpm);
714: }
715: ret = 3;
716:
717: if (operation == SMIME_DATA_CREATE) {
718: cms = CMS_data_create(in, flags);
719: } else if (operation == SMIME_DIGEST_CREATE) {
720: cms = CMS_digest_create(in, sign_md, flags);
721: } else if (operation == SMIME_COMPRESS) {
722: cms = CMS_compress(in, -1, flags);
723: } else if (operation == SMIME_ENCRYPT) {
724: flags |= CMS_PARTIAL;
725: cms = CMS_encrypt(encerts, in, cipher, flags);
726: if (!cms)
727: goto end;
728: if (secret_key) {
729: if (!CMS_add0_recipient_key(cms, NID_undef, secret_key,
730: secret_keylen, secret_keyid, secret_keyidlen,
731: NULL, NULL, NULL))
732: goto end;
733: /* NULL these because call absorbs them */
734: secret_key = NULL;
735: secret_keyid = NULL;
736: }
737: if (pwri_pass) {
738: pwri_tmp = strdup(pwri_pass);
739: if (!pwri_tmp)
740: goto end;
741: if (!CMS_add0_recipient_password(cms, -1, NID_undef,
742: NID_undef, pwri_tmp, -1, NULL))
743: goto end;
744: pwri_tmp = NULL;
745: }
746: if (!(flags & CMS_STREAM)) {
747: if (!CMS_final(cms, in, NULL, flags))
748: goto end;
749: }
750: } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
751: cms = CMS_EncryptedData_encrypt(in, cipher, secret_key,
752: secret_keylen, flags);
753:
754: } else if (operation == SMIME_SIGN_RECEIPT) {
755: CMS_ContentInfo *srcms = NULL;
756: STACK_OF(CMS_SignerInfo) * sis;
757: CMS_SignerInfo *si;
758: sis = CMS_get0_SignerInfos(cms);
759: if (!sis)
760: goto end;
761: si = sk_CMS_SignerInfo_value(sis, 0);
762: srcms = CMS_sign_receipt(si, signer, key, other, flags);
763: if (!srcms)
764: goto end;
765: CMS_ContentInfo_free(cms);
766: cms = srcms;
767: } else if (operation & SMIME_SIGNERS) {
768: int i;
769: /*
770: * If detached data content we enable streaming if S/MIME
771: * output format.
772: */
773: if (operation == SMIME_SIGN) {
774:
775: if (flags & CMS_DETACHED) {
776: if (outformat == FORMAT_SMIME)
777: flags |= CMS_STREAM;
778: }
779: flags |= CMS_PARTIAL;
780: cms = CMS_sign(NULL, NULL, other, in, flags);
781: if (!cms)
782: goto end;
783: if (econtent_type)
784: CMS_set1_eContentType(cms, econtent_type);
785:
786: if (rr_to) {
787: rr = make_receipt_request(rr_to, rr_allorfirst,
788: rr_from);
789: if (!rr) {
790: BIO_puts(bio_err,
791: "Signed Receipt Request Creation Error\n");
792: goto end;
793: }
794: }
795: } else
796: flags |= CMS_REUSE_DIGEST;
797: for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
798: CMS_SignerInfo *si;
799: signerfile = sk_OPENSSL_STRING_value(sksigners, i);
800: keyfile = sk_OPENSSL_STRING_value(skkeys, i);
801: signer = load_cert(bio_err, signerfile, FORMAT_PEM,
802: NULL, e, "signer certificate");
803: if (!signer)
804: goto end;
805: key = load_key(bio_err, keyfile, keyform, 0, passin, e,
806: "signing key file");
807: if (!key)
808: goto end;
809: si = CMS_add1_signer(cms, signer, key, sign_md, flags);
810: if (!si)
811: goto end;
812: if (rr && !CMS_add1_ReceiptRequest(si, rr))
813: goto end;
814: X509_free(signer);
815: signer = NULL;
816: EVP_PKEY_free(key);
817: key = NULL;
818: }
819: /* If not streaming or resigning finalize structure */
820: if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
821: if (!CMS_final(cms, in, NULL, flags))
822: goto end;
823: }
824: }
825: if (!cms) {
826: BIO_printf(bio_err, "Error creating CMS structure\n");
827: goto end;
828: }
829: ret = 4;
830: if (operation == SMIME_DECRYPT) {
831: if (flags & CMS_DEBUG_DECRYPT)
832: CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
833:
834: if (secret_key) {
835: if (!CMS_decrypt_set1_key(cms, secret_key,
836: secret_keylen, secret_keyid, secret_keyidlen)) {
837: BIO_puts(bio_err,
838: "Error decrypting CMS using secret key\n");
839: goto end;
840: }
841: }
842: if (key) {
843: if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
844: BIO_puts(bio_err,
845: "Error decrypting CMS using private key\n");
846: goto end;
847: }
848: }
849: if (pwri_pass) {
850: if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
851: BIO_puts(bio_err,
852: "Error decrypting CMS using password\n");
853: goto end;
854: }
855: }
856: if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
857: BIO_printf(bio_err, "Error decrypting CMS structure\n");
858: goto end;
859: }
860: } else if (operation == SMIME_DATAOUT) {
861: if (!CMS_data(cms, out, flags))
862: goto end;
863: } else if (operation == SMIME_UNCOMPRESS) {
864: if (!CMS_uncompress(cms, indata, out, flags))
865: goto end;
866: } else if (operation == SMIME_DIGEST_VERIFY) {
867: if (CMS_digest_verify(cms, indata, out, flags) > 0)
868: BIO_printf(bio_err, "Verification successful\n");
869: else {
870: BIO_printf(bio_err, "Verification failure\n");
871: goto end;
872: }
873: } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
874: if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
875: indata, out, flags))
876: goto end;
877: } else if (operation == SMIME_VERIFY) {
878: if (CMS_verify(cms, other, store, indata, out, flags) > 0)
879: BIO_printf(bio_err, "Verification successful\n");
880: else {
881: BIO_printf(bio_err, "Verification failure\n");
882: if (verify_retcode)
883: ret = verify_err + 32;
884: goto end;
885: }
886: if (signerfile) {
887: STACK_OF(X509) * signers;
888: signers = CMS_get0_signers(cms);
889: if (!save_certs(signerfile, signers)) {
890: BIO_printf(bio_err,
891: "Error writing signers to %s\n",
892: signerfile);
893: ret = 5;
894: goto end;
895: }
896: sk_X509_free(signers);
897: }
898: if (rr_print)
899: receipt_request_print(bio_err, cms);
900:
901: } else if (operation == SMIME_VERIFY_RECEIPT) {
902: if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
903: BIO_printf(bio_err, "Verification successful\n");
904: else {
905: BIO_printf(bio_err, "Verification failure\n");
906: goto end;
907: }
908: } else {
909: if (noout) {
910: if (print)
911: CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
912: } else if (outformat == FORMAT_SMIME) {
913: if (to)
914: BIO_printf(out, "To: %s\n", to);
915: if (from)
916: BIO_printf(out, "From: %s\n", from);
917: if (subject)
918: BIO_printf(out, "Subject: %s\n", subject);
919: if (operation == SMIME_RESIGN)
920: ret = SMIME_write_CMS(out, cms, indata, flags);
921: else
922: ret = SMIME_write_CMS(out, cms, in, flags);
923: } else if (outformat == FORMAT_PEM)
924: ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
925: else if (outformat == FORMAT_ASN1)
926: ret = i2d_CMS_bio_stream(out, cms, in, flags);
927: else {
928: BIO_printf(bio_err, "Bad output format for CMS file\n");
929: goto end;
930: }
931: if (ret <= 0) {
932: ret = 6;
933: goto end;
934: }
935: }
936: ret = 0;
937:
938: end:
939: if (ret)
940: ERR_print_errors(bio_err);
941: sk_X509_pop_free(encerts, X509_free);
942: sk_X509_pop_free(other, X509_free);
943: if (vpm)
944: X509_VERIFY_PARAM_free(vpm);
945: if (sksigners)
946: sk_OPENSSL_STRING_free(sksigners);
947: if (skkeys)
948: sk_OPENSSL_STRING_free(skkeys);
949: free(secret_key);
950: free(secret_keyid);
951: free(pwri_tmp);
952: if (econtent_type)
953: ASN1_OBJECT_free(econtent_type);
954: if (rr)
955: CMS_ReceiptRequest_free(rr);
956: if (rr_to)
957: sk_OPENSSL_STRING_free(rr_to);
958: if (rr_from)
959: sk_OPENSSL_STRING_free(rr_from);
960: X509_STORE_free(store);
961: X509_free(cert);
962: X509_free(recip);
963: X509_free(signer);
964: EVP_PKEY_free(key);
965: CMS_ContentInfo_free(cms);
966: CMS_ContentInfo_free(rcms);
967: BIO_free(rctin);
968: BIO_free(in);
969: BIO_free(indata);
970: BIO_free_all(out);
971: free(passin);
972: return (ret);
973: }
974:
975: static int
976: save_certs(char *signerfile, STACK_OF(X509) * signers)
977: {
978: int i;
979: BIO *tmp;
980:
981: if (!signerfile)
982: return 1;
983: tmp = BIO_new_file(signerfile, "w");
984: if (!tmp)
985: return 0;
986: for (i = 0; i < sk_X509_num(signers); i++)
987: PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
988: BIO_free(tmp);
989: return 1;
990: }
991:
992: /* Minimal callback just to output policy info (if any) */
993:
994: static int
995: cms_cb(int ok, X509_STORE_CTX * ctx)
996: {
997: int error;
998:
999: error = X509_STORE_CTX_get_error(ctx);
1000:
1001: verify_err = error;
1002:
1003: if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) &&
1004: ((error != X509_V_OK) || (ok != 2)))
1005: return ok;
1006:
1007: policies_print(NULL, ctx);
1008:
1009: return ok;
1010: }
1011:
1012: static void
1013: gnames_stack_print(BIO * out, STACK_OF(GENERAL_NAMES) * gns)
1014: {
1015: STACK_OF(GENERAL_NAME) * gens;
1016: GENERAL_NAME *gen;
1017: int i, j;
1018:
1019: for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1020: gens = sk_GENERAL_NAMES_value(gns, i);
1021: for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1022: gen = sk_GENERAL_NAME_value(gens, j);
1023: BIO_puts(out, " ");
1024: GENERAL_NAME_print(out, gen);
1025: BIO_puts(out, "\n");
1026: }
1027: }
1028: return;
1029: }
1030:
1031: static void
1032: receipt_request_print(BIO * out, CMS_ContentInfo * cms)
1033: {
1034: STACK_OF(CMS_SignerInfo) * sis;
1035: CMS_SignerInfo *si;
1036: CMS_ReceiptRequest *rr;
1037: int allorfirst;
1038: STACK_OF(GENERAL_NAMES) * rto, *rlist;
1039: ASN1_STRING *scid;
1040: int i, rv;
1041:
1042: sis = CMS_get0_SignerInfos(cms);
1043: for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1044: si = sk_CMS_SignerInfo_value(sis, i);
1045: rv = CMS_get1_ReceiptRequest(si, &rr);
1046: BIO_printf(bio_err, "Signer %d:\n", i + 1);
1047: if (rv == 0)
1048: BIO_puts(bio_err, " No Receipt Request\n");
1049: else if (rv < 0) {
1050: BIO_puts(bio_err, " Receipt Request Parse Error\n");
1051: ERR_print_errors(bio_err);
1052: } else {
1053: char *id;
1054: int idlen;
1055: CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1056: &rlist, &rto);
1057: BIO_puts(out, " Signed Content ID:\n");
1058: idlen = ASN1_STRING_length(scid);
1059: id = (char *) ASN1_STRING_data(scid);
1060: BIO_dump_indent(out, id, idlen, 4);
1061: BIO_puts(out, " Receipts From");
1062: if (rlist) {
1063: BIO_puts(out, " List:\n");
1064: gnames_stack_print(out, rlist);
1065: } else if (allorfirst == 1)
1066: BIO_puts(out, ": First Tier\n");
1067: else if (allorfirst == 0)
1068: BIO_puts(out, ": All\n");
1069: else
1070: BIO_printf(out, " Unknown (%d)\n", allorfirst);
1071: BIO_puts(out, " Receipts To:\n");
1072: gnames_stack_print(out, rto);
1073: }
1074: if (rr)
1075: CMS_ReceiptRequest_free(rr);
1076: }
1077: }
1078:
1079: static STACK_OF(GENERAL_NAMES) *
1080: make_names_stack(STACK_OF(OPENSSL_STRING) * ns)
1081: {
1082: int i;
1083: STACK_OF(GENERAL_NAMES) * ret;
1084: GENERAL_NAMES *gens = NULL;
1085: GENERAL_NAME *gen = NULL;
1086: ret = sk_GENERAL_NAMES_new_null();
1087: if (!ret)
1088: goto err;
1089: for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1090: char *str = sk_OPENSSL_STRING_value(ns, i);
1091: gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1092: if (!gen)
1093: goto err;
1094: gens = GENERAL_NAMES_new();
1095: if (!gens)
1096: goto err;
1097: if (!sk_GENERAL_NAME_push(gens, gen))
1098: goto err;
1099: gen = NULL;
1100: if (!sk_GENERAL_NAMES_push(ret, gens))
1101: goto err;
1102: gens = NULL;
1103: }
1104:
1105: return ret;
1106:
1107: err:
1108: if (ret)
1109: sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1110: if (gens)
1111: GENERAL_NAMES_free(gens);
1112: if (gen)
1113: GENERAL_NAME_free(gen);
1114: return NULL;
1115: }
1116:
1117:
1118: static CMS_ReceiptRequest *
1119: make_receipt_request(STACK_OF(OPENSSL_STRING) * rr_to, int rr_allorfirst,
1120: STACK_OF(OPENSSL_STRING) * rr_from)
1121: {
1122: STACK_OF(GENERAL_NAMES) * rct_to, *rct_from;
1123: CMS_ReceiptRequest *rr;
1124:
1125: rct_to = make_names_stack(rr_to);
1126: if (!rct_to)
1127: goto err;
1128: if (rr_from) {
1129: rct_from = make_names_stack(rr_from);
1130: if (!rct_from)
1131: goto err;
1132: } else
1133: rct_from = NULL;
1134: rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1135: rct_to);
1136: return rr;
1137:
1138: err:
1139: return NULL;
1140: }
1141:
1142: #endif