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openssl/apps/cms.c
Richard Levitte d303b9d85e Make the handling of output and input formats consistent 
Most of all, we needed to sort out which ones are binary and which
ones are text, and make sure they are treated accordingly and
consistently so

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-09-06 01:29:36 +02:00

1328 lines
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/*
* 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>
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(CMS_ContentInfo *cms);
static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
*rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
*rr_from);
static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
STACK_OF(OPENSSL_STRING) *param);
# 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;
typedef struct cms_key_param_st cms_key_param;
struct cms_key_param_st {
int idx;
STACK_OF(OPENSSL_STRING) *param;
cms_key_param *next;
};
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT,
OPT_DECRYPT, OPT_SIGN, OPT_SIGN_RECEIPT, OPT_RESIGN,
OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT,
OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY,
OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS,
OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT,
OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS,
OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID,
OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF,
OPT_NOINDEF, OPT_NOOLDMIME, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT,
OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE,
OPT_CAPATH, OPT_CONTENT, OPT_PRINT, OPT_SECRETKEY,
OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE, OPT_RAND,
OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP,
OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM,
OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP,
OPT_3DES_WRAP, OPT_ENGINE,
OPT_V_ENUM,
OPT_CIPHER
} OPTION_CHOICE;
OPTIONS cms_options[] = {
{OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"},
{OPT_HELP_STR, 1, '-',
" cert.pem... recipient certs for encryption\n"},
{OPT_HELP_STR, 1, '-', "Valid options are:\n"},
{"help", OPT_HELP, '-', "Display this summary"},
{"inform", OPT_INFORM, 'F', "Input format SMIME (default), PEM or DER"},
{"outform", OPT_OUTFORM, 'F',
"Output format SMIME (default), PEM or DER"},
{"in", OPT_IN, '<', "Input file"},
{"out", OPT_OUT, '>', "Output file"},
{"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
{"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
{"sign", OPT_SIGN, '-', "Sign message"},
{"sign_receipt", OPT_SIGN_RECEIPT, '-'},
{"resign", OPT_RESIGN, '-'},
{"verify", OPT_VERIFY, '-', "Verify signed message"},
{"verify_retcode", OPT_VERIFY_RETCODE, '-'},
{"verify_receipt", OPT_VERIFY_RECEIPT, '<'},
{"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
{"data_out", OPT_DATA_OUT, '-'},
{"data_create", OPT_DATA_CREATE, '-'},
{"digest_verify", OPT_DIGEST_VERIFY, '-'},
{"digest_create", OPT_DIGEST_CREATE, '-'},
{"compress", OPT_COMPRESS, '-'},
{"uncompress", OPT_UNCOMPRESS, '-'},
{"EncryptedData_decrypt", OPT_ED_DECRYPT, '-'},
{"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-'},
{"debug_decrypt", OPT_DEBUG_DECRYPT, '-'},
{"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
{"asciicrlf", OPT_ASCIICRLF, '-'},
{"nointern", OPT_NOINTERN, '-',
"Don't search certificates in message for signer"},
{"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
{"nocerts", OPT_NOCERTS, '-',
"Don't include signers certificate when signing"},
{"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
{"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
{"nosmimecap", OPT_NOSMIMECAP, '-'},
{"binary", OPT_BINARY, '-', "Don't translate message to text"},
{"keyid", OPT_KEYID, '-', "Use subject key identifier"},
{"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
{"no_content_verify", OPT_NO_CONTENT_VERIFY, '-'},
{"no_attr_verify", OPT_NO_ATTR_VERIFY, '-'},
{"stream", OPT_INDEF, '-'},
{"indef", OPT_INDEF, '-'},
{"noindef", OPT_NOINDEF, '-'},
{"nooldmime", OPT_NOOLDMIME, '-'},
{"crlfeol", OPT_CRLFEOL, '-'},
{"noout", OPT_NOOUT, '-'},
{"receipt_request_print", OPT_RR_PRINT, '-'},
{"receipt_request_all", OPT_RR_ALL, '-'},
{"receipt_request_first", OPT_RR_FIRST, '-'},
{"rctform", OPT_RCTFORM, 'F'},
{"certfile", OPT_CERTFILE, '<', "Other certificates file"},
{"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
{"CApath", OPT_CAPATH, '/', "trusted certificates directory"},
{"content", OPT_CONTENT, '<',
"Supply or override content for detached signature"},
{"print", OPT_PRINT, '-'},
{"secretkey", OPT_SECRETKEY, 's'},
{"secretkeyid", OPT_SECRETKEYID, 's'},
{"pwri_password", OPT_PWRI_PASSWORD, 's'},
{"econtent_type", OPT_ECONTENT_TYPE, 's'},
{"rand", OPT_RAND, 's',
"Load the file(s) into the random number generator"},
{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
{"to", OPT_TO, 's', "To address"},
{"from", OPT_FROM, 's', "From address"},
{"subject", OPT_SUBJECT, 's', "Subject"},
{"signer", OPT_SIGNER, 's', "Signer certificate file"},
{"recip", OPT_RECIP, '<', "Recipient cert file for decryption"},
{"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
{"md", OPT_MD, 's'},
{"inkey", OPT_INKEY, '<',
"Input private key (if not signer or recipient)"},
{"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"},
{"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
{"receipt_request_from", OPT_RR_FROM, 's'},
{"receipt_request_to", OPT_RR_TO, 's'},
{"", OPT_CIPHER, '-', "Any supported cipher"},
OPT_V_OPTIONS,
# ifndef OPENSSL_NO_AES
{"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
{"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
{"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
# endif
# ifndef OPENSSL_NO_DES
{"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
# endif
# ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
# endif
{NULL}
};
int cms_main(int argc, char **argv)
{
ASN1_OBJECT *econtent_type = NULL;
BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
CMS_ContentInfo *cms = NULL, *rcms = NULL;
CMS_ReceiptRequest *rr = NULL;
ENGINE *e = NULL;
EVP_PKEY *key = NULL;
const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
const EVP_MD *sign_md = NULL;
STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
STACK_OF(X509) *encerts = NULL, *other = NULL;
X509 *cert = NULL, *recip = NULL, *signer = NULL;
X509_STORE *store = NULL;
X509_VERIFY_PARAM *vpm = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
char *CAfile = NULL, *CApath = NULL, *certsoutfile = NULL;
char *infile = NULL, *outfile = NULL, *rctfile = NULL, *inrand = NULL;
char *passinarg = NULL, *passin = NULL, *signerfile = NULL, *recipfile =
NULL;
char *to = NULL, *from = NULL, *subject = NULL, *prog;
cms_key_param *key_first = NULL, *key_param = NULL;
const char *inmode = "r", *outmode = "w";
int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched =
0;
int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
int need_rand = 0, operation = 0, ret = 1, rr_print = 0, rr_allorfirst =
-1;
int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
size_t secret_keylen = 0, secret_keyidlen = 0;
unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
unsigned char *secret_key = NULL, *secret_keyid = NULL;
long ltmp;
OPTION_CHOICE o;
if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
return 1;
prog = opt_init(argc, argv, cms_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(cms_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
goto opthelp;
break;
case OPT_OUTFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
goto opthelp;
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_ENCRYPT:
operation = SMIME_ENCRYPT;
break;
case OPT_DECRYPT:
operation = SMIME_DECRYPT;
break;
case OPT_SIGN:
operation = SMIME_SIGN;
break;
case OPT_SIGN_RECEIPT:
operation = SMIME_SIGN_RECEIPT;
break;
case OPT_RESIGN:
operation = SMIME_RESIGN;
break;
case OPT_VERIFY:
operation = SMIME_VERIFY;
break;
case OPT_VERIFY_RETCODE:
verify_retcode = 1;
break;
case OPT_VERIFY_RECEIPT:
operation = SMIME_VERIFY_RECEIPT;
rctfile = opt_arg();
break;
case OPT_CMSOUT:
operation = SMIME_CMSOUT;
break;
case OPT_DATA_OUT:
operation = SMIME_DATAOUT;
break;
case OPT_DATA_CREATE:
operation = SMIME_DATA_CREATE;
break;
case OPT_DIGEST_VERIFY:
operation = SMIME_DIGEST_VERIFY;
break;
case OPT_DIGEST_CREATE:
operation = SMIME_DIGEST_CREATE;
break;
case OPT_COMPRESS:
operation = SMIME_COMPRESS;
break;
case OPT_UNCOMPRESS:
operation = SMIME_UNCOMPRESS;
break;
case OPT_ED_DECRYPT:
operation = SMIME_ENCRYPTED_DECRYPT;
break;
case OPT_ED_ENCRYPT:
operation = SMIME_ENCRYPTED_ENCRYPT;
break;
case OPT_DEBUG_DECRYPT:
flags |= CMS_DEBUG_DECRYPT;
break;
case OPT_TEXT:
flags |= CMS_TEXT;
break;
case OPT_ASCIICRLF:
flags |= CMS_ASCIICRLF;
break;
case OPT_NOINTERN:
flags |= CMS_NOINTERN;
break;
case OPT_NOVERIFY:
flags |= CMS_NO_SIGNER_CERT_VERIFY;
break;
case OPT_NOCERTS:
flags |= CMS_NOCERTS;
break;
case OPT_NOATTR:
flags |= CMS_NOATTR;
break;
case OPT_NODETACH:
flags &= ~CMS_DETACHED;
break;
case OPT_NOSMIMECAP:
flags |= CMS_NOSMIMECAP;
break;
case OPT_BINARY:
flags |= CMS_BINARY;
break;
case OPT_KEYID:
flags |= CMS_USE_KEYID;
break;
case OPT_NOSIGS:
flags |= CMS_NOSIGS;
break;
case OPT_NO_CONTENT_VERIFY:
flags |= CMS_NO_CONTENT_VERIFY;
break;
case OPT_NO_ATTR_VERIFY:
flags |= CMS_NO_ATTR_VERIFY;
break;
case OPT_INDEF:
flags |= CMS_STREAM;
break;
case OPT_NOINDEF:
flags &= ~CMS_STREAM;
break;
case OPT_NOOLDMIME:
flags |= CMS_NOOLDMIMETYPE;
break;
case OPT_CRLFEOL:
flags |= CMS_CRLFEOL;
break;
case OPT_NOOUT:
noout = 1;
break;
case OPT_RR_PRINT:
rr_print = 1;
break;
case OPT_RR_ALL:
rr_allorfirst = 0;
break;
case OPT_RR_FIRST:
rr_allorfirst = 1;
break;
case OPT_RCTFORM:
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)
if (!opt_format(opt_arg(),
OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
goto opthelp;
break;
case OPT_CERTFILE:
certfile = opt_arg();
break;
case OPT_CAFILE:
CAfile = opt_arg();
break;
case OPT_CAPATH:
CApath = opt_arg();
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_CONTENT:
contfile = opt_arg();
break;
case OPT_RR_FROM:
if (rr_from == NULL
&& (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(rr_from, opt_arg());
break;
case OPT_RR_TO:
if (rr_to == NULL
&& (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(rr_to, opt_arg());
break;
case OPT_PRINT:
noout = print = 1;
break;
case OPT_SECRETKEY:
secret_key = string_to_hex(opt_arg(), &ltmp);
if (secret_key == NULL) {
BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
goto end;
}
secret_keylen = (size_t)ltmp;
break;
case OPT_SECRETKEYID:
secret_keyid = string_to_hex(opt_arg(), &ltmp);
if (secret_keyid == NULL) {
BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
goto opthelp;
}
secret_keyidlen = (size_t)ltmp;
break;
case OPT_PWRI_PASSWORD:
pwri_pass = (unsigned char *)opt_arg();
break;
case OPT_ECONTENT_TYPE:
econtent_type = OBJ_txt2obj(opt_arg(), 0);
if (econtent_type == NULL) {
BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
goto opthelp;
}
break;
case OPT_RAND:
inrand = opt_arg();
need_rand = 1;
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_TO:
to = opt_arg();
break;
case OPT_FROM:
from = opt_arg();
break;
case OPT_SUBJECT:
subject = opt_arg();
break;
case OPT_CERTSOUT:
certsoutfile = opt_arg();
break;
case OPT_MD:
if (!opt_md(opt_arg(), &sign_md))
goto end;
break;
case OPT_SIGNER:
/* If previous -signer argument add signer to list */
if (signerfile) {
if (sksigners == NULL
&& (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(sksigners, signerfile);
if (keyfile == NULL)
keyfile = signerfile;
if (skkeys == NULL
&& (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(skkeys, keyfile);
keyfile = NULL;
}
signerfile = opt_arg();
break;
case OPT_INKEY:
/* If previous -inkey arument add signer to list */
if (keyfile) {
if (signerfile == NULL) {
BIO_puts(bio_err, "Illegal -inkey without -signer\n");
goto end;
}
if (sksigners == NULL
&& (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(sksigners, signerfile);
signerfile = NULL;
if (skkeys == NULL
&& (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(skkeys, keyfile);
}
keyfile = opt_arg();
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
goto opthelp;
break;
case OPT_RECIP:
if (operation == SMIME_ENCRYPT) {
if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL)
goto end;
cert = load_cert(opt_arg(), FORMAT_PEM, NULL, e,
"recipient certificate file");
if (cert == NULL)
goto end;
sk_X509_push(encerts, cert);
cert = NULL;
} else
recipfile = opt_arg();
break;
case OPT_CIPHER:
if (!opt_cipher(opt_unknown(), &cipher))
goto end;
break;
case OPT_KEYOPT:
keyidx = -1;
if (operation == SMIME_ENCRYPT) {
if (encerts)
keyidx += sk_X509_num(encerts);
} else {
if (keyfile || signerfile)
keyidx++;
if (skkeys)
keyidx += sk_OPENSSL_STRING_num(skkeys);
}
if (keyidx < 0) {
BIO_printf(bio_err, "No key specified\n");
goto opthelp;
}
if (key_param == NULL || key_param->idx != keyidx) {
cms_key_param *nparam;
nparam = app_malloc(sizeof(*nparam), "key param buffer");
nparam->idx = keyidx;
if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
nparam->next = NULL;
if (key_first == NULL)
key_first = nparam;
else
key_param->next = nparam;
key_param = nparam;
}
sk_OPENSSL_STRING_push(key_param->param, opt_arg());
break;
case OPT_V_CASES:
if (!opt_verify(o, vpm))
goto end;
vpmtouched++;
break;
case OPT_3DES_WRAP:
# ifndef OPENSSL_NO_DES
wrap_cipher = EVP_des_ede3_wrap();
# endif
break;
# ifndef OPENSSL_NO_AES
case OPT_AES128_WRAP:
wrap_cipher = EVP_aes_128_wrap();
break;
case OPT_AES192_WRAP:
wrap_cipher = EVP_aes_192_wrap();
break;
case OPT_AES256_WRAP:
wrap_cipher = EVP_aes_256_wrap();
break;
# else
case OPT_AES128_WRAP:
case OPT_AES192_WRAP:
case OPT_AES256_WRAP:
break;
# endif
}
}
argc = opt_num_rest();
argv = opt_rest();
if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
BIO_puts(bio_err, "No Signed Receipts Recipients\n");
goto opthelp;
}
if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
goto opthelp;
}
if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
goto opthelp;
}
if (operation & SMIME_SIGNERS) {
if (keyfile && !signerfile) {
BIO_puts(bio_err, "Illegal -inkey without -signer\n");
goto opthelp;
}
/* Check to see if any final signer needs to be appended */
if (signerfile) {
if (!sksigners
&& (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(sksigners, signerfile);
if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
if (!keyfile)
keyfile = signerfile;
sk_OPENSSL_STRING_push(skkeys, keyfile);
}
if (!sksigners) {
BIO_printf(bio_err, "No signer certificate specified\n");
goto opthelp;
}
signerfile = NULL;
keyfile = NULL;
need_rand = 1;
}
else if (operation == SMIME_DECRYPT) {
if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
BIO_printf(bio_err,
"No recipient certificate or key specified\n");
goto opthelp;
}
} else if (operation == SMIME_ENCRYPT) {
if (*argv == NULL && !secret_key && !pwri_pass && !encerts) {
BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
goto opthelp;
}
need_rand = 1;
} else if (!operation)
goto opthelp;
if (!app_passwd(passinarg, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (!app_load_modules(NULL))
goto end;
if (need_rand) {
app_RAND_load_file(NULL, (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) {
outmode = WB(outformat);
} else {
if (flags & CMS_BINARY)
outmode = "wb";
}
if (operation & SMIME_IP) {
inmode = RB(informat);
} 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 (*argv && !encerts)
if ((encerts = sk_X509_new_null()) == NULL)
goto end;
while (*argv) {
if ((cert = load_cert(*argv, FORMAT_PEM, NULL, e,
"recipient certificate file")) == NULL)
goto end;
sk_X509_push(encerts, cert);
cert = NULL;
argv++;
}
}
if (certfile) {
if ((other = load_certs(certfile, FORMAT_PEM, NULL, e,
"certificate file")) == NULL) {
ERR_print_errors(bio_err);
goto end;
}
}
if (recipfile && (operation == SMIME_DECRYPT)) {
if ((recip = load_cert(recipfile, FORMAT_PEM, NULL, e,
"recipient certificate file")) == NULL) {
ERR_print_errors(bio_err);
goto end;
}
}
if (operation == SMIME_SIGN_RECEIPT) {
if ((signer = load_cert(signerfile, FORMAT_PEM, NULL, e,
"receipt signer certificate file")) == NULL) {
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(keyfile, keyform, 0, passin, e, "signing key file");
if (!key)
goto end;
}
in = bio_open_default(infile, inmode);
if (in == NULL)
goto end;
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")) == NULL) {
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)) == NULL) {
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;
}
}
out = bio_open_default(outfile, outmode);
if (out == NULL)
goto end;
if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
if ((store = setup_verify(CAfile, CApath)) == NULL)
goto end;
X509_STORE_set_verify_cb(store, cms_cb);
if (vpmtouched)
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) {
int i;
flags |= CMS_PARTIAL;
cms = CMS_encrypt(NULL, in, cipher, flags);
if (!cms)
goto end;
for (i = 0; i < sk_X509_num(encerts); i++) {
CMS_RecipientInfo *ri;
cms_key_param *kparam;
int tflags = flags;
X509 *x = sk_X509_value(encerts, i);
for (kparam = key_first; kparam; kparam = kparam->next) {
if (kparam->idx == i) {
tflags |= CMS_KEY_PARAM;
break;
}
}
ri = CMS_add1_recipient_cert(cms, x, tflags);
if (!ri)
goto end;
if (kparam) {
EVP_PKEY_CTX *pctx;
pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
&& wrap_cipher) {
EVP_CIPHER_CTX *wctx;
wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
}
}
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 (pwri_pass) {
pwri_tmp = (unsigned char *)BUF_strdup((char *)pwri_pass);
if (!pwri_tmp)
goto end;
if (!CMS_add0_recipient_password(cms,
-1, NID_undef, NID_undef,
pwri_tmp, -1, NULL))
goto end;
pwri_tmp = 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;
cms_key_param *kparam;
int tflags = flags;
signerfile = sk_OPENSSL_STRING_value(sksigners, i);
keyfile = sk_OPENSSL_STRING_value(skkeys, i);
signer = load_cert(signerfile, FORMAT_PEM, NULL,
e, "signer certificate");
if (!signer)
goto end;
key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
if (!key)
goto end;
for (kparam = key_first; kparam; kparam = kparam->next) {
if (kparam->idx == i) {
tflags |= CMS_KEY_PARAM;
break;
}
}
si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
if (!si)
goto end;
if (kparam) {
EVP_PKEY_CTX *pctx;
pctx = CMS_SignerInfo_get0_pkey_ctx(si);
if (!cms_set_pkey_param(pctx, kparam->param))
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 (pwri_pass) {
if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
BIO_puts(bio_err, "Error decrypting CMS using password\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(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);
sk_X509_pop_free(encerts, X509_free);
sk_X509_pop_free(other, X509_free);
X509_VERIFY_PARAM_free(vpm);
sk_OPENSSL_STRING_free(sksigners);
sk_OPENSSL_STRING_free(skkeys);
OPENSSL_free(secret_key);
OPENSSL_free(secret_keyid);
OPENSSL_free(pwri_tmp);
ASN1_OBJECT_free(econtent_type);
CMS_ReceiptRequest_free(rr);
sk_OPENSSL_STRING_free(rr_to);
sk_OPENSSL_STRING_free(rr_from);
for (key_param = key_first; key_param;) {
cms_key_param *tparam;
sk_OPENSSL_STRING_free(key_param->param);
tparam = key_param->next;
OPENSSL_free(key_param);
key_param = tparam;
}
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);
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(ctx);
return ok;
}
static void gnames_stack_print(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(bio_err, " ");
GENERAL_NAME_print(bio_err, gen);
BIO_puts(bio_err, "\n");
}
}
return;
}
static void receipt_request_print(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(bio_err, " Signed Content ID:\n");
idlen = ASN1_STRING_length(scid);
id = (char *)ASN1_STRING_data(scid);
BIO_dump_indent(bio_err, id, idlen, 4);
BIO_puts(bio_err, " Receipts From");
if (rlist) {
BIO_puts(bio_err, " List:\n");
gnames_stack_print(rlist);
} else if (allorfirst == 1)
BIO_puts(bio_err, ": First Tier\n");
else if (allorfirst == 0)
BIO_puts(bio_err, ": All\n");
else
BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
BIO_puts(bio_err, " Receipts To:\n");
gnames_stack_print(rto);
}
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:
sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
GENERAL_NAMES_free(gens);
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;
}
static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
STACK_OF(OPENSSL_STRING) *param)
{
char *keyopt;
int i;
if (sk_OPENSSL_STRING_num(param) <= 0)
return 1;
for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
keyopt = sk_OPENSSL_STRING_value(param, i);
if (pkey_ctrl_string(pctx, keyopt) <= 0) {
BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
ERR_print_errors(bio_err);
return 0;
}
}
return 1;
}
#endif
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