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- /* apps/cms.c */
- /*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project.
- */
- /* ====================================================================
- * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- */
- /* CMS utility function */
- #include <stdio.h>
- #include <string.h>
- #include "apps.h"
- #ifndef OPENSSL_NO_CMS
- # include <openssl/crypto.h>
- # include <openssl/pem.h>
- # include <openssl/err.h>
- # include <openssl/x509_vfy.h>
- # include <openssl/x509v3.h>
- # include <openssl/cms.h>
- # undef PROG
- # define PROG cms_main
- static int save_certs(char *signerfile, STACK_OF(X509) *signers);
- static int cms_cb(int ok, X509_STORE_CTX *ctx);
- static void receipt_request_print(BIO *out, CMS_ContentInfo *cms);
- static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
- *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
- *rr_from);
- # define SMIME_OP 0x10
- # define SMIME_IP 0x20
- # define SMIME_SIGNERS 0x40
- # define SMIME_ENCRYPT (1 | SMIME_OP)
- # define SMIME_DECRYPT (2 | SMIME_IP)
- # define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS)
- # define SMIME_VERIFY (4 | SMIME_IP)
- # define SMIME_CMSOUT (5 | SMIME_IP | SMIME_OP)
- # define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
- # define SMIME_DATAOUT (7 | SMIME_IP)
- # define SMIME_DATA_CREATE (8 | SMIME_OP)
- # define SMIME_DIGEST_VERIFY (9 | SMIME_IP)
- # define SMIME_DIGEST_CREATE (10 | SMIME_OP)
- # define SMIME_UNCOMPRESS (11 | SMIME_IP)
- # define SMIME_COMPRESS (12 | SMIME_OP)
- # define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
- # define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
- # define SMIME_SIGN_RECEIPT (15 | SMIME_IP | SMIME_OP)
- # define SMIME_VERIFY_RECEIPT (16 | SMIME_IP)
- int verify_err = 0;
- int MAIN(int, char **);
- int MAIN(int argc, char **argv)
- {
- ENGINE *e = NULL;
- int operation = 0;
- int ret = 0;
- char **args;
- const char *inmode = "r", *outmode = "w";
- char *infile = NULL, *outfile = NULL, *rctfile = NULL;
- char *signerfile = NULL, *recipfile = NULL;
- STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
- char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
- char *certsoutfile = NULL;
- const EVP_CIPHER *cipher = NULL;
- CMS_ContentInfo *cms = NULL, *rcms = NULL;
- X509_STORE *store = NULL;
- X509 *cert = NULL, *recip = NULL, *signer = NULL;
- EVP_PKEY *key = NULL;
- STACK_OF(X509) *encerts = NULL, *other = NULL;
- BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
- int badarg = 0;
- int flags = CMS_DETACHED, noout = 0, print = 0;
- int verify_retcode = 0;
- int rr_print = 0, rr_allorfirst = -1;
- STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
- CMS_ReceiptRequest *rr = NULL;
- char *to = NULL, *from = NULL, *subject = NULL;
- char *CAfile = NULL, *CApath = NULL;
- char *passargin = NULL, *passin = NULL;
- char *inrand = NULL;
- int need_rand = 0;
- const EVP_MD *sign_md = NULL;
- int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
- int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
- # ifndef OPENSSL_NO_ENGINE
- char *engine = NULL;
- # endif
- unsigned char *secret_key = NULL, *secret_keyid = NULL;
- size_t secret_keylen = 0, secret_keyidlen = 0;
- ASN1_OBJECT *econtent_type = NULL;
- X509_VERIFY_PARAM *vpm = NULL;
- args = argv + 1;
- ret = 1;
- apps_startup();
- if (bio_err == NULL) {
- if ((bio_err = BIO_new(BIO_s_file())) != NULL)
- BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
- }
- if (!load_config(bio_err, NULL))
- goto end;
- while (!badarg && *args && *args[0] == '-') {
- if (!strcmp(*args, "-encrypt"))
- operation = SMIME_ENCRYPT;
- else if (!strcmp(*args, "-decrypt"))
- operation = SMIME_DECRYPT;
- else if (!strcmp(*args, "-sign"))
- operation = SMIME_SIGN;
- else if (!strcmp(*args, "-sign_receipt"))
- operation = SMIME_SIGN_RECEIPT;
- else if (!strcmp(*args, "-resign"))
- operation = SMIME_RESIGN;
- else if (!strcmp(*args, "-verify"))
- operation = SMIME_VERIFY;
- else if (!strcmp(*args, "-verify_retcode"))
- verify_retcode = 1;
- else if (!strcmp(*args, "-verify_receipt")) {
- operation = SMIME_VERIFY_RECEIPT;
- if (!args[1])
- goto argerr;
- args++;
- rctfile = *args;
- } else if (!strcmp(*args, "-cmsout"))
- operation = SMIME_CMSOUT;
- else if (!strcmp(*args, "-data_out"))
- operation = SMIME_DATAOUT;
- else if (!strcmp(*args, "-data_create"))
- operation = SMIME_DATA_CREATE;
- else if (!strcmp(*args, "-digest_verify"))
- operation = SMIME_DIGEST_VERIFY;
- else if (!strcmp(*args, "-digest_create"))
- operation = SMIME_DIGEST_CREATE;
- else if (!strcmp(*args, "-compress"))
- operation = SMIME_COMPRESS;
- else if (!strcmp(*args, "-uncompress"))
- operation = SMIME_UNCOMPRESS;
- else if (!strcmp(*args, "-EncryptedData_decrypt"))
- operation = SMIME_ENCRYPTED_DECRYPT;
- else if (!strcmp(*args, "-EncryptedData_encrypt"))
- operation = SMIME_ENCRYPTED_ENCRYPT;
- # ifndef OPENSSL_NO_DES
- else if (!strcmp(*args, "-des3"))
- cipher = EVP_des_ede3_cbc();
- else if (!strcmp(*args, "-des"))
- cipher = EVP_des_cbc();
- # endif
- # ifndef OPENSSL_NO_SEED
- else if (!strcmp(*args, "-seed"))
- cipher = EVP_seed_cbc();
- # endif
- # ifndef OPENSSL_NO_RC2
- else if (!strcmp(*args, "-rc2-40"))
- cipher = EVP_rc2_40_cbc();
- else if (!strcmp(*args, "-rc2-128"))
- cipher = EVP_rc2_cbc();
- else if (!strcmp(*args, "-rc2-64"))
- cipher = EVP_rc2_64_cbc();
- # endif
- # ifndef OPENSSL_NO_AES
- else if (!strcmp(*args, "-aes128"))
- cipher = EVP_aes_128_cbc();
- else if (!strcmp(*args, "-aes192"))
- cipher = EVP_aes_192_cbc();
- else if (!strcmp(*args, "-aes256"))
- cipher = EVP_aes_256_cbc();
- # endif
- # ifndef OPENSSL_NO_CAMELLIA
- else if (!strcmp(*args, "-camellia128"))
- cipher = EVP_camellia_128_cbc();
- else if (!strcmp(*args, "-camellia192"))
- cipher = EVP_camellia_192_cbc();
- else if (!strcmp(*args, "-camellia256"))
- cipher = EVP_camellia_256_cbc();
- # endif
- else if (!strcmp(*args, "-debug_decrypt"))
- flags |= CMS_DEBUG_DECRYPT;
- else if (!strcmp(*args, "-text"))
- flags |= CMS_TEXT;
- else if (!strcmp(*args, "-nointern"))
- flags |= CMS_NOINTERN;
- else if (!strcmp(*args, "-noverify")
- || !strcmp(*args, "-no_signer_cert_verify"))
- flags |= CMS_NO_SIGNER_CERT_VERIFY;
- else if (!strcmp(*args, "-nocerts"))
- flags |= CMS_NOCERTS;
- else if (!strcmp(*args, "-noattr"))
- flags |= CMS_NOATTR;
- else if (!strcmp(*args, "-nodetach"))
- flags &= ~CMS_DETACHED;
- else if (!strcmp(*args, "-nosmimecap"))
- flags |= CMS_NOSMIMECAP;
- else if (!strcmp(*args, "-binary"))
- flags |= CMS_BINARY;
- else if (!strcmp(*args, "-keyid"))
- flags |= CMS_USE_KEYID;
- else if (!strcmp(*args, "-nosigs"))
- flags |= CMS_NOSIGS;
- else if (!strcmp(*args, "-no_content_verify"))
- flags |= CMS_NO_CONTENT_VERIFY;
- else if (!strcmp(*args, "-no_attr_verify"))
- flags |= CMS_NO_ATTR_VERIFY;
- else if (!strcmp(*args, "-stream"))
- flags |= CMS_STREAM;
- else if (!strcmp(*args, "-indef"))
- flags |= CMS_STREAM;
- else if (!strcmp(*args, "-noindef"))
- flags &= ~CMS_STREAM;
- else if (!strcmp(*args, "-nooldmime"))
- flags |= CMS_NOOLDMIMETYPE;
- else if (!strcmp(*args, "-crlfeol"))
- flags |= CMS_CRLFEOL;
- else if (!strcmp(*args, "-noout"))
- noout = 1;
- else if (!strcmp(*args, "-receipt_request_print"))
- rr_print = 1;
- else if (!strcmp(*args, "-receipt_request_all"))
- rr_allorfirst = 0;
- else if (!strcmp(*args, "-receipt_request_first"))
- rr_allorfirst = 1;
- else if (!strcmp(*args, "-receipt_request_from")) {
- if (!args[1])
- goto argerr;
- args++;
- if (!rr_from)
- rr_from = sk_OPENSSL_STRING_new_null();
- sk_OPENSSL_STRING_push(rr_from, *args);
- } else if (!strcmp(*args, "-receipt_request_to")) {
- if (!args[1])
- goto argerr;
- args++;
- if (!rr_to)
- rr_to = sk_OPENSSL_STRING_new_null();
- sk_OPENSSL_STRING_push(rr_to, *args);
- } else if (!strcmp(*args, "-print")) {
- noout = 1;
- print = 1;
- } else if (!strcmp(*args, "-secretkey")) {
- long ltmp;
- if (!args[1])
- goto argerr;
- args++;
- secret_key = string_to_hex(*args, <mp);
- if (!secret_key) {
- BIO_printf(bio_err, "Invalid key %s\n", *args);
- goto argerr;
- }
- secret_keylen = (size_t)ltmp;
- } else if (!strcmp(*args, "-secretkeyid")) {
- long ltmp;
- if (!args[1])
- goto argerr;
- args++;
- secret_keyid = string_to_hex(*args, <mp);
- if (!secret_keyid) {
- BIO_printf(bio_err, "Invalid id %s\n", *args);
- goto argerr;
- }
- secret_keyidlen = (size_t)ltmp;
- } else if (!strcmp(*args, "-econtent_type")) {
- if (!args[1])
- goto argerr;
- args++;
- econtent_type = OBJ_txt2obj(*args, 0);
- if (!econtent_type) {
- BIO_printf(bio_err, "Invalid OID %s\n", *args);
- goto argerr;
- }
- } else if (!strcmp(*args, "-rand")) {
- if (!args[1])
- goto argerr;
- args++;
- inrand = *args;
- need_rand = 1;
- }
- # ifndef OPENSSL_NO_ENGINE
- else if (!strcmp(*args, "-engine")) {
- if (!args[1])
- goto argerr;
- engine = *++args;
- }
- # endif
- else if (!strcmp(*args, "-passin")) {
- if (!args[1])
- goto argerr;
- passargin = *++args;
- } else if (!strcmp(*args, "-to")) {
- if (!args[1])
- goto argerr;
- to = *++args;
- } else if (!strcmp(*args, "-from")) {
- if (!args[1])
- goto argerr;
- from = *++args;
- } else if (!strcmp(*args, "-subject")) {
- if (!args[1])
- goto argerr;
- subject = *++args;
- } else if (!strcmp(*args, "-signer")) {
- if (!args[1])
- goto argerr;
- /* If previous -signer argument add signer to list */
- if (signerfile) {
- if (!sksigners)
- sksigners = sk_OPENSSL_STRING_new_null();
- sk_OPENSSL_STRING_push(sksigners, signerfile);
- if (!keyfile)
- keyfile = signerfile;
- if (!skkeys)
- skkeys = sk_OPENSSL_STRING_new_null();
- sk_OPENSSL_STRING_push(skkeys, keyfile);
- keyfile = NULL;
- }
- signerfile = *++args;
- } else if (!strcmp(*args, "-recip")) {
- if (!args[1])
- goto argerr;
- recipfile = *++args;
- } else if (!strcmp(*args, "-certsout")) {
- if (!args[1])
- goto argerr;
- certsoutfile = *++args;
- } else if (!strcmp(*args, "-md")) {
- if (!args[1])
- goto argerr;
- sign_md = EVP_get_digestbyname(*++args);
- if (sign_md == NULL) {
- BIO_printf(bio_err, "Unknown digest %s\n", *args);
- goto argerr;
- }
- } else if (!strcmp(*args, "-inkey")) {
- if (!args[1])
- goto argerr;
- /* If previous -inkey arument add signer to list */
- if (keyfile) {
- if (!signerfile) {
- BIO_puts(bio_err, "Illegal -inkey without -signer\n");
- goto argerr;
- }
- if (!sksigners)
- sksigners = sk_OPENSSL_STRING_new_null();
- sk_OPENSSL_STRING_push(sksigners, signerfile);
- signerfile = NULL;
- if (!skkeys)
- skkeys = sk_OPENSSL_STRING_new_null();
- sk_OPENSSL_STRING_push(skkeys, keyfile);
- }
- keyfile = *++args;
- } else if (!strcmp(*args, "-keyform")) {
- if (!args[1])
- goto argerr;
- keyform = str2fmt(*++args);
- } else if (!strcmp(*args, "-rctform")) {
- if (!args[1])
- goto argerr;
- rctformat = str2fmt(*++args);
- } else if (!strcmp(*args, "-certfile")) {
- if (!args[1])
- goto argerr;
- certfile = *++args;
- } else if (!strcmp(*args, "-CAfile")) {
- if (!args[1])
- goto argerr;
- CAfile = *++args;
- } else if (!strcmp(*args, "-CApath")) {
- if (!args[1])
- goto argerr;
- CApath = *++args;
- } else if (!strcmp(*args, "-in")) {
- if (!args[1])
- goto argerr;
- infile = *++args;
- } else if (!strcmp(*args, "-inform")) {
- if (!args[1])
- goto argerr;
- informat = str2fmt(*++args);
- } else if (!strcmp(*args, "-outform")) {
- if (!args[1])
- goto argerr;
- outformat = str2fmt(*++args);
- } else if (!strcmp(*args, "-out")) {
- if (!args[1])
- goto argerr;
- outfile = *++args;
- } else if (!strcmp(*args, "-content")) {
- if (!args[1])
- goto argerr;
- contfile = *++args;
- } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
- continue;
- else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
- badarg = 1;
- args++;
- }
- if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
- BIO_puts(bio_err, "No Signed Receipts Recipients\n");
- goto argerr;
- }
- if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
- BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
- goto argerr;
- }
- if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
- BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
- goto argerr;
- }
- if (operation & SMIME_SIGNERS) {
- if (keyfile && !signerfile) {
- BIO_puts(bio_err, "Illegal -inkey without -signer\n");
- goto argerr;
- }
- /* Check to see if any final signer needs to be appended */
- if (signerfile) {
- if (!sksigners)
- sksigners = sk_OPENSSL_STRING_new_null();
- sk_OPENSSL_STRING_push(sksigners, signerfile);
- if (!skkeys)
- skkeys = sk_OPENSSL_STRING_new_null();
- if (!keyfile)
- keyfile = signerfile;
- sk_OPENSSL_STRING_push(skkeys, keyfile);
- }
- if (!sksigners) {
- BIO_printf(bio_err, "No signer certificate specified\n");
- badarg = 1;
- }
- signerfile = NULL;
- keyfile = NULL;
- need_rand = 1;
- }
- else if (operation == SMIME_DECRYPT) {
- if (!recipfile && !keyfile && !secret_key) {
- BIO_printf(bio_err,
- "No recipient certificate or key specified\n");
- badarg = 1;
- }
- } else if (operation == SMIME_ENCRYPT) {
- if (!*args && !secret_key) {
- BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
- badarg = 1;
- }
- need_rand = 1;
- } else if (!operation)
- badarg = 1;
- if (badarg) {
- argerr:
- BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n");
- BIO_printf(bio_err, "where options are\n");
- BIO_printf(bio_err, "-encrypt encrypt message\n");
- BIO_printf(bio_err, "-decrypt decrypt encrypted message\n");
- BIO_printf(bio_err, "-sign sign message\n");
- BIO_printf(bio_err, "-verify verify signed message\n");
- BIO_printf(bio_err, "-cmsout output CMS structure\n");
- # ifndef OPENSSL_NO_DES
- BIO_printf(bio_err, "-des3 encrypt with triple DES\n");
- BIO_printf(bio_err, "-des encrypt with DES\n");
- # endif
- # ifndef OPENSSL_NO_SEED
- BIO_printf(bio_err, "-seed encrypt with SEED\n");
- # endif
- # ifndef OPENSSL_NO_RC2
- BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n");
- BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n");
- BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n");
- # endif
- # ifndef OPENSSL_NO_AES
- BIO_printf(bio_err, "-aes128, -aes192, -aes256\n");
- BIO_printf(bio_err,
- " encrypt PEM output with cbc aes\n");
- # endif
- # ifndef OPENSSL_NO_CAMELLIA
- BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n");
- BIO_printf(bio_err,
- " encrypt PEM output with cbc camellia\n");
- # endif
- BIO_printf(bio_err,
- "-nointern don't search certificates in message for signer\n");
- BIO_printf(bio_err,
- "-nosigs don't verify message signature\n");
- BIO_printf(bio_err,
- "-noverify don't verify signers certificate\n");
- BIO_printf(bio_err,
- "-nocerts don't include signers certificate when signing\n");
- BIO_printf(bio_err, "-nodetach use opaque signing\n");
- BIO_printf(bio_err,
- "-noattr don't include any signed attributes\n");
- BIO_printf(bio_err,
- "-binary don't translate message to text\n");
- BIO_printf(bio_err, "-certfile file other certificates file\n");
- BIO_printf(bio_err, "-certsout file certificate output file\n");
- BIO_printf(bio_err, "-signer file signer certificate file\n");
- BIO_printf(bio_err,
- "-recip file recipient certificate file for decryption\n");
- BIO_printf(bio_err, "-keyid use subject key identifier\n");
- BIO_printf(bio_err, "-in file input file\n");
- BIO_printf(bio_err,
- "-inform arg input format SMIME (default), PEM or DER\n");
- BIO_printf(bio_err,
- "-inkey file input private key (if not signer or recipient)\n");
- BIO_printf(bio_err,
- "-keyform arg input private key format (PEM or ENGINE)\n");
- BIO_printf(bio_err, "-out file output file\n");
- BIO_printf(bio_err,
- "-outform arg output format SMIME (default), PEM or DER\n");
- BIO_printf(bio_err,
- "-content file supply or override content for detached signature\n");
- BIO_printf(bio_err, "-to addr to address\n");
- BIO_printf(bio_err, "-from ad from address\n");
- BIO_printf(bio_err, "-subject s subject\n");
- BIO_printf(bio_err,
- "-text include or delete text MIME headers\n");
- BIO_printf(bio_err,
- "-CApath dir trusted certificates directory\n");
- BIO_printf(bio_err, "-CAfile file trusted certificates file\n");
- BIO_printf(bio_err,
- "-crl_check check revocation status of signer's certificate using CRLs\n");
- BIO_printf(bio_err,
- "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
- # ifndef OPENSSL_NO_ENGINE
- BIO_printf(bio_err,
- "-engine e use engine e, possibly a hardware device.\n");
- # endif
- BIO_printf(bio_err, "-passin arg input file pass phrase source\n");
- BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
- LIST_SEPARATOR_CHAR);
- BIO_printf(bio_err,
- " load the file (or the files in the directory) into\n");
- BIO_printf(bio_err, " the random number generator\n");
- BIO_printf(bio_err,
- "cert.pem recipient certificate(s) for encryption\n");
- goto end;
- }
- # ifndef OPENSSL_NO_ENGINE
- e = setup_engine(bio_err, engine, 0);
- # endif
- if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
- BIO_printf(bio_err, "Error getting password\n");
- goto end;
- }
- if (need_rand) {
- app_RAND_load_file(NULL, bio_err, (inrand != NULL));
- if (inrand != NULL)
- BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
- app_RAND_load_files(inrand));
- }
- ret = 2;
- if (!(operation & SMIME_SIGNERS))
- flags &= ~CMS_DETACHED;
- if (operation & SMIME_OP) {
- if (outformat == FORMAT_ASN1)
- outmode = "wb";
- } else {
- if (flags & CMS_BINARY)
- outmode = "wb";
- }
- if (operation & SMIME_IP) {
- if (informat == FORMAT_ASN1)
- inmode = "rb";
- } else {
- if (flags & CMS_BINARY)
- inmode = "rb";
- }
- if (operation == SMIME_ENCRYPT) {
- if (!cipher) {
- # ifndef OPENSSL_NO_DES
- cipher = EVP_des_ede3_cbc();
- # else
- BIO_printf(bio_err, "No cipher selected\n");
- goto end;
- # endif
- }
- if (secret_key && !secret_keyid) {
- BIO_printf(bio_err, "No secret key id\n");
- goto end;
- }
- if (*args)
- encerts = sk_X509_new_null();
- while (*args) {
- if (!(cert = load_cert(bio_err, *args, FORMAT_PEM,
- NULL, e, "recipient certificate file")))
- goto end;
- sk_X509_push(encerts, cert);
- cert = NULL;
- args++;
- }
- }
- if (certfile) {
- if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL,
- e, "certificate file"))) {
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- if (recipfile && (operation == SMIME_DECRYPT)) {
- if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL,
- e, "recipient certificate file"))) {
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- if (operation == SMIME_SIGN_RECEIPT) {
- if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
- e, "receipt signer certificate file"))) {
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- if (operation == SMIME_DECRYPT) {
- if (!keyfile)
- keyfile = recipfile;
- } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
- if (!keyfile)
- keyfile = signerfile;
- } else
- keyfile = NULL;
- if (keyfile) {
- key = load_key(bio_err, keyfile, keyform, 0, passin, e,
- "signing key file");
- if (!key)
- goto end;
- }
- if (infile) {
- if (!(in = BIO_new_file(infile, inmode))) {
- BIO_printf(bio_err, "Can't open input file %s\n", infile);
- goto end;
- }
- } else
- in = BIO_new_fp(stdin, BIO_NOCLOSE);
- if (operation & SMIME_IP) {
- if (informat == FORMAT_SMIME)
- cms = SMIME_read_CMS(in, &indata);
- else if (informat == FORMAT_PEM)
- cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
- else if (informat == FORMAT_ASN1)
- cms = d2i_CMS_bio(in, NULL);
- else {
- BIO_printf(bio_err, "Bad input format for CMS file\n");
- goto end;
- }
- if (!cms) {
- BIO_printf(bio_err, "Error reading S/MIME message\n");
- goto end;
- }
- if (contfile) {
- BIO_free(indata);
- if (!(indata = BIO_new_file(contfile, "rb"))) {
- BIO_printf(bio_err, "Can't read content file %s\n", contfile);
- goto end;
- }
- }
- if (certsoutfile) {
- STACK_OF(X509) *allcerts;
- allcerts = CMS_get1_certs(cms);
- if (!save_certs(certsoutfile, allcerts)) {
- BIO_printf(bio_err,
- "Error writing certs to %s\n", certsoutfile);
- ret = 5;
- goto end;
- }
- sk_X509_pop_free(allcerts, X509_free);
- }
- }
- if (rctfile) {
- char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
- if (!(rctin = BIO_new_file(rctfile, rctmode))) {
- BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
- goto end;
- }
- if (rctformat == FORMAT_SMIME)
- rcms = SMIME_read_CMS(rctin, NULL);
- else if (rctformat == FORMAT_PEM)
- rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
- else if (rctformat == FORMAT_ASN1)
- rcms = d2i_CMS_bio(rctin, NULL);
- else {
- BIO_printf(bio_err, "Bad input format for receipt\n");
- goto end;
- }
- if (!rcms) {
- BIO_printf(bio_err, "Error reading receipt\n");
- goto end;
- }
- }
- if (outfile) {
- if (!(out = BIO_new_file(outfile, outmode))) {
- BIO_printf(bio_err, "Can't open output file %s\n", outfile);
- goto end;
- }
- } else {
- out = BIO_new_fp(stdout, BIO_NOCLOSE);
- # ifdef OPENSSL_SYS_VMS
- {
- BIO *tmpbio = BIO_new(BIO_f_linebuffer());
- out = BIO_push(tmpbio, out);
- }
- # endif
- }
- if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
- if (!(store = setup_verify(bio_err, CAfile, CApath)))
- goto end;
- X509_STORE_set_verify_cb(store, cms_cb);
- if (vpm)
- X509_STORE_set1_param(store, vpm);
- }
- ret = 3;
- if (operation == SMIME_DATA_CREATE) {
- cms = CMS_data_create(in, flags);
- } else if (operation == SMIME_DIGEST_CREATE) {
- cms = CMS_digest_create(in, sign_md, flags);
- } else if (operation == SMIME_COMPRESS) {
- cms = CMS_compress(in, -1, flags);
- } else if (operation == SMIME_ENCRYPT) {
- flags |= CMS_PARTIAL;
- cms = CMS_encrypt(encerts, in, cipher, flags);
- if (!cms)
- goto end;
- if (secret_key) {
- if (!CMS_add0_recipient_key(cms, NID_undef,
- secret_key, secret_keylen,
- secret_keyid, secret_keyidlen,
- NULL, NULL, NULL))
- goto end;
- /* NULL these because call absorbs them */
- secret_key = NULL;
- secret_keyid = NULL;
- }
- if (!(flags & CMS_STREAM)) {
- if (!CMS_final(cms, in, NULL, flags))
- goto end;
- }
- } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
- cms = CMS_EncryptedData_encrypt(in, cipher,
- secret_key, secret_keylen, flags);
- } else if (operation == SMIME_SIGN_RECEIPT) {
- CMS_ContentInfo *srcms = NULL;
- STACK_OF(CMS_SignerInfo) *sis;
- CMS_SignerInfo *si;
- sis = CMS_get0_SignerInfos(cms);
- if (!sis)
- goto end;
- si = sk_CMS_SignerInfo_value(sis, 0);
- srcms = CMS_sign_receipt(si, signer, key, other, flags);
- if (!srcms)
- goto end;
- CMS_ContentInfo_free(cms);
- cms = srcms;
- } else if (operation & SMIME_SIGNERS) {
- int i;
- /*
- * If detached data content we enable streaming if S/MIME output
- * format.
- */
- if (operation == SMIME_SIGN) {
- if (flags & CMS_DETACHED) {
- if (outformat == FORMAT_SMIME)
- flags |= CMS_STREAM;
- }
- flags |= CMS_PARTIAL;
- cms = CMS_sign(NULL, NULL, other, in, flags);
- if (!cms)
- goto end;
- if (econtent_type)
- CMS_set1_eContentType(cms, econtent_type);
- if (rr_to) {
- rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
- if (!rr) {
- BIO_puts(bio_err,
- "Signed Receipt Request Creation Error\n");
- goto end;
- }
- }
- } else
- flags |= CMS_REUSE_DIGEST;
- for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
- CMS_SignerInfo *si;
- signerfile = sk_OPENSSL_STRING_value(sksigners, i);
- keyfile = sk_OPENSSL_STRING_value(skkeys, i);
- signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
- e, "signer certificate");
- if (!signer)
- goto end;
- key = load_key(bio_err, keyfile, keyform, 0, passin, e,
- "signing key file");
- if (!key)
- goto end;
- si = CMS_add1_signer(cms, signer, key, sign_md, flags);
- if (!si)
- goto end;
- if (rr && !CMS_add1_ReceiptRequest(si, rr))
- goto end;
- X509_free(signer);
- signer = NULL;
- EVP_PKEY_free(key);
- key = NULL;
- }
- /* If not streaming or resigning finalize structure */
- if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
- if (!CMS_final(cms, in, NULL, flags))
- goto end;
- }
- }
- if (!cms) {
- BIO_printf(bio_err, "Error creating CMS structure\n");
- goto end;
- }
- ret = 4;
- if (operation == SMIME_DECRYPT) {
- if (flags & CMS_DEBUG_DECRYPT)
- CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
- if (secret_key) {
- if (!CMS_decrypt_set1_key(cms,
- secret_key, secret_keylen,
- secret_keyid, secret_keyidlen)) {
- BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
- goto end;
- }
- }
- if (key) {
- if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
- BIO_puts(bio_err, "Error decrypting CMS using private key\n");
- goto end;
- }
- }
- if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
- BIO_printf(bio_err, "Error decrypting CMS structure\n");
- goto end;
- }
- } else if (operation == SMIME_DATAOUT) {
- if (!CMS_data(cms, out, flags))
- goto end;
- } else if (operation == SMIME_UNCOMPRESS) {
- if (!CMS_uncompress(cms, indata, out, flags))
- goto end;
- } else if (operation == SMIME_DIGEST_VERIFY) {
- if (CMS_digest_verify(cms, indata, out, flags) > 0)
- BIO_printf(bio_err, "Verification successful\n");
- else {
- BIO_printf(bio_err, "Verification failure\n");
- goto end;
- }
- } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
- if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
- indata, out, flags))
- goto end;
- } else if (operation == SMIME_VERIFY) {
- if (CMS_verify(cms, other, store, indata, out, flags) > 0)
- BIO_printf(bio_err, "Verification successful\n");
- else {
- BIO_printf(bio_err, "Verification failure\n");
- if (verify_retcode)
- ret = verify_err + 32;
- goto end;
- }
- if (signerfile) {
- STACK_OF(X509) *signers;
- signers = CMS_get0_signers(cms);
- if (!save_certs(signerfile, signers)) {
- BIO_printf(bio_err,
- "Error writing signers to %s\n", signerfile);
- ret = 5;
- goto end;
- }
- sk_X509_free(signers);
- }
- if (rr_print)
- receipt_request_print(bio_err, cms);
- } else if (operation == SMIME_VERIFY_RECEIPT) {
- if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
- BIO_printf(bio_err, "Verification successful\n");
- else {
- BIO_printf(bio_err, "Verification failure\n");
- goto end;
- }
- } else {
- if (noout) {
- if (print)
- CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
- } else if (outformat == FORMAT_SMIME) {
- if (to)
- BIO_printf(out, "To: %s\n", to);
- if (from)
- BIO_printf(out, "From: %s\n", from);
- if (subject)
- BIO_printf(out, "Subject: %s\n", subject);
- if (operation == SMIME_RESIGN)
- ret = SMIME_write_CMS(out, cms, indata, flags);
- else
- ret = SMIME_write_CMS(out, cms, in, flags);
- } else if (outformat == FORMAT_PEM)
- ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
- else if (outformat == FORMAT_ASN1)
- ret = i2d_CMS_bio_stream(out, cms, in, flags);
- else {
- BIO_printf(bio_err, "Bad output format for CMS file\n");
- goto end;
- }
- if (ret <= 0) {
- ret = 6;
- goto end;
- }
- }
- ret = 0;
- end:
- if (ret)
- ERR_print_errors(bio_err);
- if (need_rand)
- app_RAND_write_file(NULL, bio_err);
- sk_X509_pop_free(encerts, X509_free);
- sk_X509_pop_free(other, X509_free);
- if (vpm)
- X509_VERIFY_PARAM_free(vpm);
- if (sksigners)
- sk_OPENSSL_STRING_free(sksigners);
- if (skkeys)
- sk_OPENSSL_STRING_free(skkeys);
- if (secret_key)
- OPENSSL_free(secret_key);
- if (secret_keyid)
- OPENSSL_free(secret_keyid);
- if (econtent_type)
- ASN1_OBJECT_free(econtent_type);
- if (rr)
- CMS_ReceiptRequest_free(rr);
- if (rr_to)
- sk_OPENSSL_STRING_free(rr_to);
- if (rr_from)
- sk_OPENSSL_STRING_free(rr_from);
- X509_STORE_free(store);
- X509_free(cert);
- X509_free(recip);
- X509_free(signer);
- EVP_PKEY_free(key);
- CMS_ContentInfo_free(cms);
- CMS_ContentInfo_free(rcms);
- BIO_free(rctin);
- BIO_free(in);
- BIO_free(indata);
- BIO_free_all(out);
- if (passin)
- OPENSSL_free(passin);
- return (ret);
- }
- static int save_certs(char *signerfile, STACK_OF(X509) *signers)
- {
- int i;
- BIO *tmp;
- if (!signerfile)
- return 1;
- tmp = BIO_new_file(signerfile, "w");
- if (!tmp)
- return 0;
- for (i = 0; i < sk_X509_num(signers); i++)
- PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
- BIO_free(tmp);
- return 1;
- }
- /* Minimal callback just to output policy info (if any) */
- static int cms_cb(int ok, X509_STORE_CTX *ctx)
- {
- int error;
- error = X509_STORE_CTX_get_error(ctx);
- verify_err = error;
- if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
- && ((error != X509_V_OK) || (ok != 2)))
- return ok;
- policies_print(NULL, ctx);
- return ok;
- }
- static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns)
- {
- STACK_OF(GENERAL_NAME) *gens;
- GENERAL_NAME *gen;
- int i, j;
- for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
- gens = sk_GENERAL_NAMES_value(gns, i);
- for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
- gen = sk_GENERAL_NAME_value(gens, j);
- BIO_puts(out, " ");
- GENERAL_NAME_print(out, gen);
- BIO_puts(out, "\n");
- }
- }
- return;
- }
- static void receipt_request_print(BIO *out, CMS_ContentInfo *cms)
- {
- STACK_OF(CMS_SignerInfo) *sis;
- CMS_SignerInfo *si;
- CMS_ReceiptRequest *rr;
- int allorfirst;
- STACK_OF(GENERAL_NAMES) *rto, *rlist;
- ASN1_STRING *scid;
- int i, rv;
- sis = CMS_get0_SignerInfos(cms);
- for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
- si = sk_CMS_SignerInfo_value(sis, i);
- rv = CMS_get1_ReceiptRequest(si, &rr);
- BIO_printf(bio_err, "Signer %d:\n", i + 1);
- if (rv == 0)
- BIO_puts(bio_err, " No Receipt Request\n");
- else if (rv < 0) {
- BIO_puts(bio_err, " Receipt Request Parse Error\n");
- ERR_print_errors(bio_err);
- } else {
- char *id;
- int idlen;
- CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
- &rlist, &rto);
- BIO_puts(out, " Signed Content ID:\n");
- idlen = ASN1_STRING_length(scid);
- id = (char *)ASN1_STRING_data(scid);
- BIO_dump_indent(out, id, idlen, 4);
- BIO_puts(out, " Receipts From");
- if (rlist) {
- BIO_puts(out, " List:\n");
- gnames_stack_print(out, rlist);
- } else if (allorfirst == 1)
- BIO_puts(out, ": First Tier\n");
- else if (allorfirst == 0)
- BIO_puts(out, ": All\n");
- else
- BIO_printf(out, " Unknown (%d)\n", allorfirst);
- BIO_puts(out, " Receipts To:\n");
- gnames_stack_print(out, rto);
- }
- if (rr)
- CMS_ReceiptRequest_free(rr);
- }
- }
- static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
- {
- int i;
- STACK_OF(GENERAL_NAMES) *ret;
- GENERAL_NAMES *gens = NULL;
- GENERAL_NAME *gen = NULL;
- ret = sk_GENERAL_NAMES_new_null();
- if (!ret)
- goto err;
- for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
- char *str = sk_OPENSSL_STRING_value(ns, i);
- gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
- if (!gen)
- goto err;
- gens = GENERAL_NAMES_new();
- if (!gens)
- goto err;
- if (!sk_GENERAL_NAME_push(gens, gen))
- goto err;
- gen = NULL;
- if (!sk_GENERAL_NAMES_push(ret, gens))
- goto err;
- gens = NULL;
- }
- return ret;
- err:
- if (ret)
- sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
- if (gens)
- GENERAL_NAMES_free(gens);
- if (gen)
- GENERAL_NAME_free(gen);
- return NULL;
- }
- static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
- *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
- *rr_from)
- {
- STACK_OF(GENERAL_NAMES) *rct_to, *rct_from;
- CMS_ReceiptRequest *rr;
- rct_to = make_names_stack(rr_to);
- if (!rct_to)
- goto err;
- if (rr_from) {
- rct_from = make_names_stack(rr_from);
- if (!rct_from)
- goto err;
- } else
- rct_from = NULL;
- rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
- rct_to);
- return rr;
- err:
- return NULL;
- }
- #endif
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