diff options
Diffstat (limited to 'openssl/apps/cms.c')
| -rw-r--r-- | openssl/apps/cms.c | 1347 |
1 files changed, 1347 insertions, 0 deletions
diff --git a/openssl/apps/cms.c b/openssl/apps/cms.c new file mode 100644 index 000000000..6d227acab --- /dev/null +++ b/openssl/apps/cms.c @@ -0,0 +1,1347 @@ +/* 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, <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_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 |