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openssl/apps/cms.c
Dr. Stephen Henson db50661fce X509 verification fixes. 
Ignore self issued certificates when checking path length constraints.

Duplicate OIDs in policy tree in case they are allocated.

Use anyPolicy from certificate cache and not current tree level.
2008-07-13 14:25:36 +00:00

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