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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 *rr_to, int rr_allorfirst,
+ STACK *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 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 *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;
+ int rr_print = 0, rr_allorfirst = -1;
+ STACK *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_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, "-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"))
+ {
+ args++;
+ continue;
+ }
+ else if (!strcmp (*args, "-indef"))
+ {
+ args++;
+ continue;
+ }
+ 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, "-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_new_null();
+ sk_push(rr_from, *args);
+ }
+ else if (!strcmp(*args,"-receipt_request_to"))
+ {
+ if (!args[1])
+ goto argerr;
+ args++;
+ if (!rr_to)
+ rr_to = sk_new_null();
+ sk_push(rr_to, *args);
+ }
+ else if (!strcmp(*args,"-secretkey"))
+ {
+ long ltmp;
+ if (!args[1])
+ goto argerr;
+ args++;
+ secret_key = string_to_hex(*args, &ltmp);
+ 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, &ltmp);
+ 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_new_null();
+ sk_push(sksigners, signerfile);
+ if (!keyfile)
+ keyfile = signerfile;
+ if (!skkeys)
+ skkeys = sk_new_null();
+ sk_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_new_null();
+ sk_push(sksigners, signerfile);
+ signerfile = NULL;
+ if (!skkeys)
+ skkeys = sk_new_null();
+ sk_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_new_null();
+ sk_push(sksigners, signerfile);
+ if (!skkeys)
+ skkeys = sk_new_null();
+ if (!keyfile)
+ keyfile = signerfile;
+ sk_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, "-skeyid 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 sectre 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_func(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_num(sksigners); i++)
+ {
+ CMS_SignerInfo *si;
+ signerfile = sk_value(sksigners, i);
+ keyfile = sk_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 (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");
+ 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 (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(out, cms);
+ else if (outformat == FORMAT_ASN1)
+ ret = i2d_CMS_bio(out,cms);
+ 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_free(sksigners);
+ if (skkeys)
+ sk_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_free(rr_to);
+ if (rr_from)
+ sk_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);
+
+ 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 *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_num(ns); i++)
+ {
+ CONF_VALUE cnf;
+ cnf.name = "email";
+ cnf.value = sk_value(ns, i);
+ gen = v2i_GENERAL_NAME(NULL, NULL, &cnf);
+ 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 *rr_to, int rr_allorfirst,
+ STACK *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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