/*
* call-seq:
* PKCS7.new => pkcs7
* PKCS7.new(string) => pkcs7
*
* Many methods in this class aren't documented.
*/
static VALUE
ossl_pkcs7_initialize(int argc, VALUE *argv, VALUE self)
{
PKCS7 *p7, *pkcs = DATA_PTR(self);
BIO *in;
VALUE arg;
if(rb_scan_args(argc, argv, "01", &arg) == 0)
return self;
arg = ossl_to_der_if_possible(arg);
in = ossl_obj2bio(arg);
p7 = PEM_read_bio_PKCS7(in, &pkcs, NULL, NULL);
DATA_PTR(self) = pkcs;
if (!p7) {
OSSL_BIO_reset(in);
p7 = d2i_PKCS7_bio(in, &pkcs);
if (!p7)
ossl_raise(rb_eArgError, "Could not parse the PKCS7");
DATA_PTR(self) = pkcs;
}
BIO_free(in);
ossl_pkcs7_set_data(self, Qnil);
ossl_pkcs7_set_err_string(self, Qnil);
return self;
}
void openssl_pkcs7_encrypt()
{
BIO *b;
int len;
FILE *fp;
PKCS7 *p7;
unsigned char *der, *p;
const unsigned char edata[COMM_LEN] = "pkcs7 encrypt";
p7 = PKCS7_new();
PKCS7_set_type(p7, NID_pkcs7_encrypted);
ASN1_INTEGER_set(p7->d.encrypted->version, 3);
p7->d.encrypted->enc_data->algorithm->algorithm =
OBJ_nid2obj(NID_des_ede3_cbc);
p7->d.encrypted->enc_data->enc_data = ASN1_OCTET_STRING_new();
ASN1_OCTET_STRING_set(p7->d.encrypted->enc_data->enc_data, edata, 14);
len = i2d_PKCS7(p7, NULL);
der = (unsigned char *)malloc(len);
p = der;
len = i2d_PKCS7(p7, &p);
fp = fopen("/tmp/test.cer", "wb");
fwrite(der, 1, len, fp);
fclose(fp);
PKCS7_free(p7);
free(der);
b = BIO_new_file("/tmp/test.pem", "r");
p7 = PEM_read_bio_PKCS7(b, NULL, NULL, NULL);
BIO_free(b);
PKCS7_free(p7);
}
void pki_pkcs7::fromPEM_BIO(BIO *bio, QString name)
{
PKCS7 *_p7 = PEM_read_bio_PKCS7(bio, NULL, NULL, NULL);
openssl_error(name);
if (p7)
PKCS7_free(p7);
p7 = _p7;
setIntName(rmslashdot(name));
}
static PKCS7*
get_pkcs7_from_pem(const char* enc_entity)
{
const char* p;
char* wrapped_enc_entity = NULL;
BIO* rbio = NULL;
PKCS7* p7 = NULL;
/* Check if encrypted entity is composed of raw data or if it has some
* headers. In the latter case, just skip the headers. Headers are
* separated from data by an empty line (hence sequence CRLF CRLF).*/
if (p = strstr(enc_entity, CRLF CRLF)) {
enc_entity = p+4;
} else if (p = strstr(enc_entity, LF LF)) {
enc_entity = p+2;
} else if (p = strstr(enc_entity, CR CR)) {
enc_entity = p+2;
}
/* Make sure the pem markers are there */
LOG_PRINT("get_pkcs7_from_pem: wrapping in pem markers");
if (!(wrapped_enc_entity = wrap_in_pem_markers(enc_entity, "PKCS7")))
GOTO_ERR("no memory?");
LOG_PRINT("get_pkcs7_from_pem: wrapped.");
/* Set up BIO so encrypted/signed data can be read from pem file */
if (!(rbio = set_read_BIO_from_buf(wrapped_enc_entity, -1))) goto err;
LOG_PRINT("get_pkcs7_from_pem: ready to read PKCS7 bio...");
/* Load the PKCS7 object from a pem file to internal representation.
* this reads all of the data file. */
if (!(p7=PEM_read_bio_PKCS7(rbio,NULL/*&x*/,NULL/*callback*/,NULL/*arg*/)))
GOTO_ERR("11 corrupt PEM PKCS7 file? (PEM_read_bio_PKCS7)");
LOG_PRINT("get_pkcs7_from_pem: bio read");
BIO_free_all(rbio);
Free(wrapped_enc_entity);
return p7;
err:
if (rbio) BIO_free_all(rbio);
if (wrapped_enc_entity) Free(wrapped_enc_entity);
return NULL;
}
static LUA_FUNCTION(openssl_pkcs7_read)
{
BIO* bio = load_bio_object(L, 1);
int fmt = luaL_checkoption(L, 2, "auto", format);
PKCS7 *p7 = NULL;
BIO* ctx = NULL;
if (fmt == FORMAT_AUTO)
{
fmt = bio_is_der(bio) ? FORMAT_DER : FORMAT_PEM;
}
if (fmt == FORMAT_DER)
{
p7 = d2i_PKCS7_bio(bio, NULL);
BIO_reset(bio);
}
else if (fmt == FORMAT_PEM)
{
p7 = PEM_read_bio_PKCS7(bio, NULL, NULL, NULL);
BIO_reset(bio);
}
else if (fmt == FORMAT_SMIME)
{
p7 = SMIME_read_PKCS7(bio, &ctx);
}
BIO_free(bio);
if (p7)
{
PUSH_OBJECT(p7, "openssl.pkcs7");
if (ctx)
{
BUF_MEM* mem;
BIO_get_mem_ptr(ctx, &mem);
lua_pushlstring(L, mem->data, mem->length);
BIO_free(ctx);
return 2;
}
return 1;
}
return openssl_pushresult(L, 0);
}
/*
* call-seq:
* PKCS7.new => pkcs7
* PKCS7.new(string) => pkcs7
*
* Many methods in this class aren't documented.
*/
static VALUE
ossl_pkcs7_initialize(int argc, VALUE *argv, VALUE self)
{
PKCS7 *p7;
BIO *in;
VALUE arg;
if(rb_scan_args(argc, argv, "01", &arg) == 0)
return self;
arg = ossl_to_der_if_possible(arg);
in = ossl_obj2bio(arg);
p7 = PEM_read_bio_PKCS7(in, (PKCS7 **)&DATA_PTR(self), NULL, NULL);
if (!p7) {
BIO_reset(in);
p7 = d2i_PKCS7_bio(in, (PKCS7 **)&DATA_PTR(self));
}
BIO_free(in);
ossl_pkcs7_set_data(self, Qnil);
ossl_pkcs7_set_err_string(self, Qnil);
return self;
}
static PKCS7 *pkcs7_get_signed_file(const char *filename, BIO **content, int format)
{
PKCS7 *pkcs7;
BIO *input;
input = BIO_new_file(filename, "rb");
if (!input) {
return NULL;
}
*content = NULL;
switch (format) {
case PKCS7_INPUT_FORMAT_SMIME:
pkcs7 = SMIME_read_PKCS7(input, content);
break;
case PKCS7_INPUT_FORMAT_PEM:
pkcs7 = PEM_read_bio_PKCS7(input, NULL, NULL, "");
break;
case PKCS7_INPUT_FORMAT_DER:
pkcs7 = d2i_PKCS7_bio(input, NULL);
break;
default:
abort(); /* Should never reach here. */
return NULL;
};
if (!pkcs7) {
BIO_free(input);
return NULL;
}
BIO_free(input);
return pkcs7;
}
DVT_STATUS CERTIFICATE_FILE_CLASS::importPkcs7(const char* filename, bool, const char*)
// DESCRIPTION : Import certificates from a PKCS#7 formated file.
// PRECONDITIONS :
// POSTCONDITIONS :
// EXCEPTIONS :
// NOTES : Returns MSG_OK, MSG_ERROR, MSG_FILE_NOT_EXIST, MSG_NO_VALUE, MSG_INVALID_PASSWORD
//<<===========================================================================
{
DVT_STATUS status = MSG_ERROR;
BIO* bio_ptr;
unsigned long err;
PKCS7 *p7_ptr = NULL;
STACK_OF(X509) *certStack_ptr = NULL;
int count = 0;
// clear the error queue
ERR_clear_error();
// open the file
bio_ptr = BIO_new(BIO_s_file_internal());
if (bio_ptr == NULL)
{
openSslM_ptr->printError(loggerM_ptr, LOG_ERROR, "setting up to read PKCS #7 file");
status = MSG_ERROR;
goto end;
}
if (BIO_read_filename(bio_ptr, filename) <= 0)
{
err = ERR_peek_error();
if ((ERR_GET_LIB(err) == ERR_LIB_SYS) && (ERR_GET_REASON(err) == ERROR_FILE_NOT_FOUND))
{
// file does not exist
ERR_clear_error(); // eat any errors
status = MSG_FILE_NOT_EXIST;
}
else
{
openSslM_ptr->printError(loggerM_ptr, LOG_ERROR, "opening PKCS #7 file for reading");
status = MSG_ERROR;
}
goto end;
}
// try reading the file as a PEM file
p7_ptr = PEM_read_bio_PKCS7(bio_ptr, NULL, NULL, NULL);
if (p7_ptr == NULL)
{
err = ERR_peek_error();
if ((ERR_GET_LIB(err) == ERR_LIB_PEM) && (ERR_GET_REASON(err) == PEM_R_NO_START_LINE))
{
// no PEM start line
ERR_clear_error(); // eat any errors
BIO_reset(bio_ptr); // reset the file to the beginning
// try reading the file as DER
p7_ptr = d2i_PKCS7_bio(bio_ptr, NULL);
}
}
if (p7_ptr == NULL)
{
openSslM_ptr->printError(loggerM_ptr, LOG_ERROR, "reading PKCS #7 file");
status = MSG_ERROR;
}
else
{
// get the certificates from the p7 structure
int p7Type = OBJ_obj2nid(p7_ptr->type);
switch (p7Type)
{
case NID_pkcs7_signed:
certStack_ptr = p7_ptr->d.sign->cert;
break;
case NID_pkcs7_signedAndEnveloped:
certStack_ptr = p7_ptr->d.signed_and_enveloped->cert;
break;
default:
openSslM_ptr->printError(loggerM_ptr, LOG_ERROR, "unsupported PKCS #7 file type");
status = MSG_ERROR;
goto end;
}
if ((certStack_ptr != NULL) && (sk_X509_num(certStack_ptr) > 0))
{
X509* x509_ptr;
// save each of the certificates
while ((x509_ptr = sk_X509_shift(certStack_ptr)) != NULL)
{
if (!push(x509_ptr))
{
status = MSG_ERROR;
goto end;
}
count++;
}
}
if (count == 0)
{
status = MSG_NO_VALUE;
}
else
{
status = MSG_OK;
}
}
end:
// certStack_ptr freed by the PKCS7_free() below
if (p7_ptr != NULL) PKCS7_free(p7_ptr);
if (bio_ptr != NULL) BIO_free(bio_ptr);
return status;
}
int smime_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL, *indata = NULL;
EVP_PKEY *key = NULL;
PKCS7 *p7 = 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;
const EVP_CIPHER *cipher = NULL;
const EVP_MD *sign_md = NULL;
const char *CAfile = NULL, *CApath = NULL, *prog = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile = NULL, *inrand = NULL;
char *infile = NULL, *outfile = NULL, *signerfile = NULL, *recipfile =
NULL;
char *passinarg = NULL, *passin = NULL, *to = NULL, *from =
NULL, *subject = NULL;
OPTION_CHOICE o;
int noCApath = 0, noCAfile = 0;
int flags = PKCS7_DETACHED, operation = 0, ret = 0, need_rand = 0, indef =
0;
int informat = FORMAT_SMIME, outformat = FORMAT_SMIME, keyform =
FORMAT_PEM;
int vpmtouched = 0, rv = 0;
ENGINE *e = NULL;
const char *mime_eol = "\n";
if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
return 1;
prog = opt_init(argc, argv, smime_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(smime_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUTFORM:
if (!opt_format(opt_arg(), OPT_FMT_PDS, &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_RESIGN:
operation = SMIME_RESIGN;
break;
case OPT_VERIFY:
operation = SMIME_VERIFY;
break;
case OPT_PK7OUT:
operation = SMIME_PK7OUT;
break;
case OPT_TEXT:
flags |= PKCS7_TEXT;
break;
case OPT_NOINTERN:
flags |= PKCS7_NOINTERN;
break;
case OPT_NOVERIFY:
flags |= PKCS7_NOVERIFY;
break;
case OPT_NOCHAIN:
flags |= PKCS7_NOCHAIN;
break;
case OPT_NOCERTS:
flags |= PKCS7_NOCERTS;
break;
case OPT_NOATTR:
flags |= PKCS7_NOATTR;
break;
case OPT_NODETACH:
flags &= ~PKCS7_DETACHED;
break;
case OPT_NOSMIMECAP:
flags |= PKCS7_NOSMIMECAP;
break;
case OPT_BINARY:
flags |= PKCS7_BINARY;
break;
case OPT_NOSIGS:
flags |= PKCS7_NOSIGS;
break;
case OPT_STREAM:
case OPT_INDEF:
indef = 1;
break;
case OPT_NOINDEF:
indef = 0;
break;
case OPT_CRLFEOL:
flags |= PKCS7_CRLFEOL;
mime_eol = "\r\n";
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_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_RECIP:
recipfile = opt_arg();
break;
case OPT_MD:
if (!opt_md(opt_arg(), &sign_md))
goto opthelp;
break;
case OPT_CIPHER:
if (!opt_cipher(opt_unknown(), &cipher))
goto opthelp;
break;
case OPT_INKEY:
/* If previous -inkey argument add signer to list */
if (keyfile) {
if (signerfile == NULL) {
BIO_printf(bio_err,
"%s: Must have -signer before -inkey\n", prog);
goto opthelp;
}
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_CERTFILE:
certfile = opt_arg();
break;
case OPT_CAFILE:
CAfile = opt_arg();
break;
case OPT_CAPATH:
CApath = opt_arg();
break;
case OPT_NOCAFILE:
noCAfile = 1;
break;
case OPT_NOCAPATH:
noCApath = 1;
break;
case OPT_CONTENT:
contfile = opt_arg();
break;
case OPT_V_CASES:
if (!opt_verify(o, vpm))
goto opthelp;
vpmtouched++;
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
goto opthelp;
}
if (operation & SMIME_SIGNERS) {
/* Check to see if any final signer needs to be appended */
if (keyfile && !signerfile) {
BIO_puts(bio_err, "Illegal -inkey without -signer\n");
goto opthelp;
}
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) {
BIO_printf(bio_err,
"No recipient certificate or key specified\n");
goto opthelp;
}
} else if (operation == SMIME_ENCRYPT) {
if (argc == 0) {
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 (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 &= ~PKCS7_DETACHED;
if (!(operation & SMIME_OP)) {
if (flags & PKCS7_BINARY)
outformat = FORMAT_BINARY;
}
if (!(operation & SMIME_IP)) {
if (flags & PKCS7_BINARY)
informat = FORMAT_BINARY;
}
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
}
encerts = sk_X509_new_null();
if (!encerts)
goto end;
while (*argv) {
cert = load_cert(*argv, FORMAT_PEM,
"recipient certificate file");
if (cert == NULL)
goto end;
sk_X509_push(encerts, cert);
cert = NULL;
argv++;
}
}
if (certfile) {
if (!load_certs(certfile, &other, FORMAT_PEM, NULL,
"certificate file")) {
ERR_print_errors(bio_err);
goto end;
}
}
if (recipfile && (operation == SMIME_DECRYPT)) {
if ((recip = load_cert(recipfile, FORMAT_PEM,
"recipient certificate file")) == NULL) {
ERR_print_errors(bio_err);
goto end;
}
}
if (operation == SMIME_DECRYPT) {
if (!keyfile)
keyfile = recipfile;
} else if (operation == SMIME_SIGN) {
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, 'r', informat);
if (in == NULL)
goto end;
if (operation & SMIME_IP) {
if (informat == FORMAT_SMIME)
p7 = SMIME_read_PKCS7(in, &indata);
else if (informat == FORMAT_PEM)
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
else if (informat == FORMAT_ASN1)
p7 = d2i_PKCS7_bio(in, NULL);
else {
BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
goto end;
}
if (!p7) {
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;
}
}
}
out = bio_open_default(outfile, 'w', outformat);
if (out == NULL)
goto end;
if (operation == SMIME_VERIFY) {
if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
goto end;
X509_STORE_set_verify_cb(store, smime_cb);
if (vpmtouched)
X509_STORE_set1_param(store, vpm);
}
ret = 3;
if (operation == SMIME_ENCRYPT) {
if (indef)
flags |= PKCS7_STREAM;
p7 = PKCS7_encrypt(encerts, in, cipher, flags);
} else if (operation & SMIME_SIGNERS) {
int i;
/*
* If detached data content we only enable streaming if S/MIME output
* format.
*/
if (operation == SMIME_SIGN) {
if (flags & PKCS7_DETACHED) {
if (outformat == FORMAT_SMIME)
flags |= PKCS7_STREAM;
} else if (indef)
flags |= PKCS7_STREAM;
flags |= PKCS7_PARTIAL;
p7 = PKCS7_sign(NULL, NULL, other, in, flags);
if (!p7)
goto end;
if (flags & PKCS7_NOCERTS) {
for (i = 0; i < sk_X509_num(other); i++) {
X509 *x = sk_X509_value(other, i);
PKCS7_add_certificate(p7, x);
}
}
} else
flags |= PKCS7_REUSE_DIGEST;
for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
signerfile = sk_OPENSSL_STRING_value(sksigners, i);
keyfile = sk_OPENSSL_STRING_value(skkeys, i);
signer = load_cert(signerfile, FORMAT_PEM,
"signer certificate");
if (!signer)
goto end;
key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
if (!key)
goto end;
if (!PKCS7_sign_add_signer(p7, signer, key, sign_md, flags))
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 & PKCS7_STREAM)) {
if (!PKCS7_final(p7, in, flags))
goto end;
}
}
if (!p7) {
BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
goto end;
}
ret = 4;
if (operation == SMIME_DECRYPT) {
if (!PKCS7_decrypt(p7, key, recip, out, flags)) {
BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
goto end;
}
} else if (operation == SMIME_VERIFY) {
STACK_OF(X509) *signers;
if (PKCS7_verify(p7, other, store, indata, out, flags))
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
signers = PKCS7_get0_signers(p7, other, flags);
if (!save_certs(signerfile, signers)) {
BIO_printf(bio_err, "Error writing signers to %s\n", signerfile);
ret = 5;
goto end;
}
sk_X509_free(signers);
} else if (operation == SMIME_PK7OUT)
PEM_write_bio_PKCS7(out, p7);
else {
if (to)
BIO_printf(out, "To: %s%s", to, mime_eol);
if (from)
BIO_printf(out, "From: %s%s", from, mime_eol);
if (subject)
BIO_printf(out, "Subject: %s%s", subject, mime_eol);
if (outformat == FORMAT_SMIME) {
if (operation == SMIME_RESIGN)
rv = SMIME_write_PKCS7(out, p7, indata, flags);
else
rv = SMIME_write_PKCS7(out, p7, in, flags);
} else if (outformat == FORMAT_PEM)
rv = PEM_write_bio_PKCS7_stream(out, p7, in, flags);
else if (outformat == FORMAT_ASN1)
rv = i2d_PKCS7_bio_stream(out, p7, in, flags);
else {
BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
goto end;
}
if (rv == 0) {
BIO_printf(bio_err, "Error writing output\n");
ret = 3;
goto end;
}
}
ret = 0;
end:
if (need_rand)
app_RAND_write_file(NULL);
if (ret)
ERR_print_errors(bio_err);
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);
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
X509_free(signer);
EVP_PKEY_free(key);
PKCS7_free(p7);
release_engine(e);
BIO_free(in);
BIO_free(indata);
BIO_free_all(out);
OPENSSL_free(passin);
return (ret);
}
extern "C" PKCS7* CryptoNative_PemReadBioPkcs7(BIO* bp)
{
return PEM_read_bio_PKCS7(bp, nullptr, nullptr, nullptr);
}
int
opkg_verify_file (char *text_file, char *sig_file)
{
#if defined HAVE_GPGME
if (conf->check_signature == 0 )
return 0;
int status = -1;
gpgme_ctx_t ctx;
gpgme_data_t sig, text, key;
gpgme_error_t err;
gpgme_verify_result_t result;
gpgme_signature_t s;
char *trusted_path = NULL;
gpgme_check_version (NULL);
err = gpgme_new (&ctx);
if (err)
return -1;
sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
err = gpgme_data_new_from_file (&key, trusted_path, 1);
free (trusted_path);
if (err)
{
return -1;
}
err = gpgme_op_import (ctx, key);
if (err)
{
gpgme_data_release (key);
return -1;
}
gpgme_data_release (key);
err = gpgme_data_new_from_file (&sig, sig_file, 1);
if (err)
{
gpgme_release (ctx);
return -1;
}
err = gpgme_data_new_from_file (&text, text_file, 1);
if (err)
{
gpgme_data_release (sig);
gpgme_release (ctx);
return -1;
}
err = gpgme_op_verify (ctx, sig, text, NULL);
result = gpgme_op_verify_result (ctx);
if (!result)
return -1;
/* see if any of the signitures matched */
s = result->signatures;
while (s)
{
status = gpg_err_code (s->status);
if (status == GPG_ERR_NO_ERROR)
break;
s = s->next;
}
gpgme_data_release (sig);
gpgme_data_release (text);
gpgme_release (ctx);
return status;
#elif defined HAVE_OPENSSL
X509_STORE *store = NULL;
PKCS7 *p7 = NULL;
BIO *in = NULL, *indata = NULL;
// Sig check failed by default !
int status = -1;
openssl_init();
// Set-up the key store
if(!(store = setup_verify(conf->signature_ca_file, conf->signature_ca_path))){
opkg_msg(ERROR, "Can't open CA certificates.\n");
goto verify_file_end;
}
// Open a BIO to read the sig file
if (!(in = BIO_new_file(sig_file, "rb"))){
opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
goto verify_file_end;
}
// Read the PKCS7 block contained in the sig file
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
if(!p7){
opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
sig_file);
goto verify_file_end;
}
#if defined(HAVE_PATHFINDER)
if(conf->check_x509_path){
if(!pkcs7_pathfinder_verify_signers(p7)){
opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
"Path verification failed.\n");
goto verify_file_end;
}
}
#endif
// Open the Package file to authenticate
if (!(indata = BIO_new_file(text_file, "rb"))){
opkg_msg(ERROR, "Can't open file %s.\n", text_file);
goto verify_file_end;
}
// Let's verify the autenticity !
if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
// Get Off My Lawn!
opkg_msg(ERROR, "Verification failure.\n");
}else{
// Victory !
status = 0;
}
verify_file_end:
BIO_free(in);
BIO_free(indata);
PKCS7_free(p7);
X509_STORE_free(store);
return status;
#else
/* mute `unused variable' warnings. */
(void) sig_file;
(void) text_file;
(void) conf;
return 0;
#endif
}
int pkcs7_main(int argc, char **argv)
{
ENGINE *e = NULL;
PKCS7 *p7 = NULL;
BIO *in = NULL, *out = NULL;
int informat = FORMAT_PEM, outformat = FORMAT_PEM;
char *infile = NULL, *outfile = NULL, *prog;
int i, print_certs = 0, text = 0, noout = 0, p7_print = 0, ret = 1;
OPTION_CHOICE o;
prog = opt_init(argc, argv, pkcs7_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(pkcs7_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_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_NOOUT:
noout = 1;
break;
case OPT_TEXT:
text = 1;
break;
case OPT_PRINT:
p7_print = 1;
break;
case OPT_PRINT_CERTS:
print_certs = 1;
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
in = bio_open_default(infile, 'r', informat);
if (in == NULL)
goto end;
if (informat == FORMAT_ASN1)
p7 = d2i_PKCS7_bio(in, NULL);
else
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
if (p7 == NULL) {
BIO_printf(bio_err, "unable to load PKCS7 object\n");
ERR_print_errors(bio_err);
goto end;
}
out = bio_open_default(outfile, 'w', outformat);
if (out == NULL)
goto end;
if (p7_print)
PKCS7_print_ctx(out, p7, 0, NULL);
if (print_certs) {
STACK_OF(X509) *certs = NULL;
STACK_OF(X509_CRL) *crls = NULL;
i = OBJ_obj2nid(p7->type);
switch (i) {
case NID_pkcs7_signed:
if (p7->d.sign != NULL) {
certs = p7->d.sign->cert;
crls = p7->d.sign->crl;
}
break;
case NID_pkcs7_signedAndEnveloped:
if (p7->d.signed_and_enveloped != NULL) {
certs = p7->d.signed_and_enveloped->cert;
crls = p7->d.signed_and_enveloped->crl;
}
break;
default:
break;
}
if (certs != NULL) {
X509 *x;
for (i = 0; i < sk_X509_num(certs); i++) {
x = sk_X509_value(certs, i);
if (text)
X509_print(out, x);
else
dump_cert_text(out, x);
if (!noout)
PEM_write_bio_X509(out, x);
BIO_puts(out, "\n");
}
}
if (crls != NULL) {
X509_CRL *crl;
for (i = 0; i < sk_X509_CRL_num(crls); i++) {
crl = sk_X509_CRL_value(crls, i);
X509_CRL_print_ex(out, crl, get_nameopt());
if (!noout)
PEM_write_bio_X509_CRL(out, crl);
BIO_puts(out, "\n");
}
}
ret = 0;
goto end;
}
if (!noout) {
if (outformat == FORMAT_ASN1)
i = i2d_PKCS7_bio(out, p7);
else
i = PEM_write_bio_PKCS7(out, p7);
if (!i) {
BIO_printf(bio_err, "unable to write pkcs7 object\n");
ERR_print_errors(bio_err);
goto end;
}
}
ret = 0;
end:
PKCS7_free(p7);
release_engine(e);
BIO_free(in);
BIO_free_all(out);
return ret;
}
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;
char *signerfile = NULL, *recipfile = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
const EVP_CIPHER *cipher = NULL;
PKCS7 *p7 = 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;
int badarg = 0;
int flags = PKCS7_DETACHED;
char *to = NULL, *from = NULL, *subject = NULL;
char *CAfile = NULL, *CApath = NULL;
char *passargin = NULL, *passin = NULL;
char *inrand = NULL;
int need_rand = 0;
int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
int keyform = FORMAT_PEM;
#ifndef OPENSSL_NO_ENGINE
char *engine=NULL;
#endif
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, "-verify"))
operation = SMIME_VERIFY;
else if (!strcmp (*args, "-pk7out"))
operation = SMIME_PK7OUT;
#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 |= PKCS7_TEXT;
else if (!strcmp (*args, "-nointern"))
flags |= PKCS7_NOINTERN;
else if (!strcmp (*args, "-noverify"))
flags |= PKCS7_NOVERIFY;
else if (!strcmp (*args, "-nochain"))
flags |= PKCS7_NOCHAIN;
else if (!strcmp (*args, "-nocerts"))
flags |= PKCS7_NOCERTS;
else if (!strcmp (*args, "-noattr"))
flags |= PKCS7_NOATTR;
else if (!strcmp (*args, "-nodetach"))
flags &= ~PKCS7_DETACHED;
else if (!strcmp (*args, "-nosmimecap"))
flags |= PKCS7_NOSMIMECAP;
else if (!strcmp (*args, "-binary"))
flags |= PKCS7_BINARY;
else if (!strcmp (*args, "-nosigs"))
flags |= PKCS7_NOSIGS;
else if (!strcmp (*args, "-nooldmime"))
flags |= PKCS7_NOOLDMIMETYPE;
else if (!strcmp (*args, "-crlfeol"))
flags |= PKCS7_CRLFEOL;
else if (!strcmp(*args,"-rand"))
{
if (args[1])
{
args++;
inrand = *args;
}
else
badarg = 1;
need_rand = 1;
}
#ifndef OPENSSL_NO_ENGINE
else if (!strcmp(*args,"-engine"))
{
if (args[1])
{
args++;
engine = *args;
}
else badarg = 1;
}
#endif
else if (!strcmp(*args,"-passin"))
{
if (args[1])
{
args++;
passargin = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-to"))
{
if (args[1])
{
args++;
to = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-from"))
{
if (args[1])
{
args++;
from = *args;
}
else badarg = 1;
}
else if (!strcmp (*args, "-subject"))
{
if (args[1])
{
args++;
subject = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-signer"))
{
if (args[1])
{
args++;
signerfile = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-recip"))
{
if (args[1])
{
args++;
recipfile = *args;
}
else badarg = 1;
}
else if (!strcmp (*args, "-inkey"))
{
if (args[1])
{
args++;
keyfile = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-keyform"))
{
if (args[1])
{
args++;
keyform = str2fmt(*args);
}
else
badarg = 1;
}
else if (!strcmp (*args, "-certfile"))
{
if (args[1])
{
args++;
certfile = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-CAfile"))
{
if (args[1])
{
args++;
CAfile = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-CApath"))
{
if (args[1])
{
args++;
CApath = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-in"))
{
if (args[1])
{
args++;
infile = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-inform"))
{
if (args[1])
{
args++;
informat = str2fmt(*args);
}
else
badarg = 1;
}
else if (!strcmp (*args, "-outform"))
{
if (args[1])
{
args++;
outformat = str2fmt(*args);
}
else
badarg = 1;
}
else if (!strcmp (*args, "-out"))
{
if (args[1])
{
args++;
outfile = *args;
}
else
badarg = 1;
}
else if (!strcmp (*args, "-content"))
{
if (args[1])
{
args++;
contfile = *args;
}
else
badarg = 1;
}
else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
continue;
else
badarg = 1;
args++;
}
if (operation == SMIME_SIGN)
{
if (!signerfile)
{
BIO_printf(bio_err, "No signer certificate specified\n");
badarg = 1;
}
need_rand = 1;
}
else if (operation == SMIME_DECRYPT)
{
if (!recipfile && !keyfile)
{
BIO_printf(bio_err, "No recipient certificate or key specified\n");
badarg = 1;
}
}
else if (operation == SMIME_ENCRYPT)
{
if (!*args)
{
BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
badarg = 1;
}
need_rand = 1;
}
else if (!operation)
badarg = 1;
if (badarg)
{
BIO_printf (bio_err, "Usage smime [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, "-pk7out output PKCS#7 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, "-signer file signer certificate file\n");
BIO_printf (bio_err, "-recip file recipient certificate file for decryption\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_SIGN)
flags &= ~PKCS7_DETACHED;
if (operation & SMIME_OP)
{
if (flags & PKCS7_BINARY)
inmode = "rb";
if (outformat == FORMAT_ASN1)
outmode = "wb";
}
else
{
if (flags & PKCS7_BINARY)
outmode = "wb";
if (informat == FORMAT_ASN1)
inmode = "rb";
}
if (operation == SMIME_ENCRYPT)
{
if (!cipher)
{
#ifndef OPENSSL_NO_RC2
cipher = EVP_rc2_40_cbc();
#else
BIO_printf(bio_err, "No cipher selected\n");
goto end;
#endif
}
encerts = sk_X509_new_null();
while (*args)
{
if (!(cert = load_cert(bio_err,*args,FORMAT_PEM,
NULL, e, "recipient certificate file")))
{
#if 0 /* An appropriate message is already printed */
BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args);
#endif
goto end;
}
sk_X509_push(encerts, cert);
cert = NULL;
args++;
}
}
if (signerfile && (operation == SMIME_SIGN))
{
if (!(signer = load_cert(bio_err,signerfile,FORMAT_PEM, NULL,
e, "signer certificate")))
{
#if 0 /* An appropri message has already been printed */
BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile);
#endif
goto end;
}
}
if (certfile)
{
if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
e, "certificate file")))
{
#if 0 /* An appropriate message has already been printed */
BIO_printf(bio_err, "Can't read certificate file %s\n", certfile);
#endif
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")))
{
#if 0 /* An appropriate message has alrady been printed */
BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile);
#endif
ERR_print_errors(bio_err);
goto end;
}
}
if (operation == SMIME_DECRYPT)
{
if (!keyfile)
keyfile = recipfile;
}
else if (operation == SMIME_SIGN)
{
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 (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)
{
if (!(store = setup_verify(bio_err, CAfile, CApath)))
goto end;
X509_STORE_set_verify_cb_func(store, smime_cb);
if (vpm)
X509_STORE_set1_param(store, vpm);
}
ret = 3;
if (operation == SMIME_ENCRYPT)
p7 = PKCS7_encrypt(encerts, in, cipher, flags);
else if (operation == SMIME_SIGN)
{
/* If detached data and SMIME output enable partial
* signing.
*/
if ((flags & PKCS7_DETACHED) && (outformat == FORMAT_SMIME))
flags |= PKCS7_STREAM;
p7 = PKCS7_sign(signer, key, other, in, flags);
}
else
{
if (informat == FORMAT_SMIME)
p7 = SMIME_read_PKCS7(in, &indata);
else if (informat == FORMAT_PEM)
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
else if (informat == FORMAT_ASN1)
p7 = d2i_PKCS7_bio(in, NULL);
else
{
BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
goto end;
}
if (!p7)
{
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 (!p7)
{
BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
goto end;
}
ret = 4;
if (operation == SMIME_DECRYPT)
{
if (!PKCS7_decrypt(p7, key, recip, out, flags))
{
BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
goto end;
}
}
else if (operation == SMIME_VERIFY)
{
STACK_OF(X509) *signers;
if (PKCS7_verify(p7, other, store, indata, out, flags))
BIO_printf(bio_err, "Verification successful\n");
else
{
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
signers = PKCS7_get0_signers(p7, other, flags);
if (!save_certs(signerfile, signers))
{
BIO_printf(bio_err, "Error writing signers to %s\n",
signerfile);
ret = 5;
goto end;
}
sk_X509_free(signers);
}
else if (operation == SMIME_PK7OUT)
PEM_write_bio_PKCS7(out, p7);
else
{
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 (outformat == FORMAT_SMIME)
SMIME_write_PKCS7(out, p7, in, flags);
else if (outformat == FORMAT_PEM)
PEM_write_bio_PKCS7(out,p7);
else if (outformat == FORMAT_ASN1)
i2d_PKCS7_bio(out,p7);
else
{
BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
goto end;
}
}
ret = 0;
end:
if (need_rand)
app_RAND_write_file(NULL, bio_err);
if (ret) ERR_print_errors(bio_err);
sk_X509_pop_free(encerts, X509_free);
sk_X509_pop_free(other, X509_free);
if (vpm)
X509_VERIFY_PARAM_free(vpm);
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
X509_free(signer);
EVP_PKEY_free(key);
PKCS7_free(p7);
BIO_free(in);
BIO_free(indata);
BIO_free_all(out);
if (passin) OPENSSL_free(passin);
return (ret);
}
static int parse_pkcs7_data(const options_t *options, const CRYPT_DATA_BLOB *blob)
{
int result = 0;
const cert_format_e input_fmt = CERT_FORMAT_DER;
PKCS7 *p7 = NULL;
BIO *in = NULL;
CRYPTO_malloc_init();
ERR_load_crypto_strings();
OpenSSL_add_all_algorithms();
in = BIO_new_mem_buf(blob->pbData, blob->cbData);
if (in == NULL) {
result = -2;
goto error;
}
switch (input_fmt) {
default: EXIT_ERROR("unhandled input format for certificate");
case CERT_FORMAT_DER:
p7 = d2i_PKCS7_bio(in, NULL);
break;
case CERT_FORMAT_PEM:
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
break;
}
if (p7 == NULL) {
ERR_print_errors_fp(stderr);
result = -3;
goto error;
}
STACK_OF(X509) *certs = NULL;
int type = OBJ_obj2nid(p7->type);
switch (type) {
default: break;
case NID_pkcs7_signed: // PKCS7_type_is_signed(p7)
certs = p7->d.sign->cert;
break;
case NID_pkcs7_signedAndEnveloped: // PKCS7_type_is_signedAndEnveloped(p7)
certs = p7->d.signed_and_enveloped->cert;
break;
}
const int numcerts = certs != NULL ? sk_X509_num(certs) : 0;
for (int i = 0; i < numcerts; i++) {
X509 *cert = sk_X509_value(certs, i);
print_certificate(options->certout, options->certoutform, cert);
// NOTE: Calling X509_free(cert) is unnecessary.
}
// Print whether certificate signature is valid
if (numcerts > 0) {
X509 *subject = sk_X509_value(certs, 0);
X509 *issuer = sk_X509_value(certs, numcerts - 1);
int valid_sig = X509_verify(subject, X509_get_pubkey(issuer));
output("Signature", valid_sig == 1 ? "valid" : "invalid");
}
// Print signers
if (numcerts > 0) {
output_open_scope("signers", OUTPUT_SCOPE_TYPE_ARRAY);
for (int i = 0; i < numcerts; i++) {
X509 *cert = sk_X509_value(certs, i);
X509_NAME *name = X509_get_subject_name(cert);
int issuer_name_len = X509_NAME_get_text_by_NID(name, NID_commonName, NULL, 0);
if (issuer_name_len > 0) {
output_open_scope("signer", OUTPUT_SCOPE_TYPE_OBJECT);
char issuer_name[issuer_name_len + 1];
X509_NAME_get_text_by_NID(name, NID_commonName, issuer_name, issuer_name_len + 1);
output("Issuer", issuer_name);
output_close_scope(); // signer
}
}
output_close_scope(); // signers
}
error:
if (p7 != NULL)
PKCS7_free(p7);
if (in != NULL)
BIO_free(in);
// Deallocate everything from OpenSSL_add_all_algorithms
EVP_cleanup();
// Deallocate everything from ERR_load_crypto_strings
ERR_free_strings();
return result;
}
int
easy_pkcs7_verify(const char *content, size_t len,
const char *signature, size_t signature_len,
const char *anchor, int is_pkg)
{
STACK_OF(X509) *cert_chain, *signers;
X509_STORE *store;
BIO *sig, *in;
PKCS7 *p7;
int i, status;
X509_NAME *name;
char *subject;
OpenSSL_add_all_algorithms();
ERR_load_crypto_strings();
status = -1;
if (cert_chain_file)
cert_chain = file_to_certs(cert_chain_file);
else
cert_chain = NULL;
store = X509_STORE_new();
if (store == NULL) {
sk_X509_free(cert_chain);
warnx("Failed to create certificate store");
return -1;
}
X509_STORE_load_locations(store, anchor, NULL);
in = BIO_new_mem_buf(__UNCONST(content), len);
sig = BIO_new_mem_buf(__UNCONST(signature), signature_len);
signers = NULL;
p7 = PEM_read_bio_PKCS7(sig, NULL, NULL, NULL);
if (p7 == NULL) {
warnx("Failed to parse the signature");
goto cleanup;
}
if (PKCS7_verify(p7, cert_chain, store, in, NULL, 0) != 1) {
warnx("Failed to verify signature");
goto cleanup;
}
signers = PKCS7_get0_signers(p7, NULL, 0);
if (signers == NULL) {
warnx("Failed to get signers");
goto cleanup;
}
if (sk_X509_num(signers) == 0) {
warnx("No signers found");
goto cleanup;
}
for (i = 0; i < sk_X509_num(signers); i++) {
/* Compute ex_xkusage */
X509_check_purpose(sk_X509_value(signers, i), -1, -1);
if (check_ca(sk_X509_value(signers, i))) {
warnx("CA keys are not valid for signatures");
goto cleanup;
}
if (is_pkg) {
if (sk_X509_value(signers, i)->ex_xkusage != pkg_key_usage) {
warnx("Certificate must have CODE SIGNING "
"and EMAIL PROTECTION property");
goto cleanup;
}
} else {
if (sk_X509_value(signers, i)->ex_xkusage != 0) {
warnx("Certificate must not have any property");
goto cleanup;
}
}
}
printf("Sigature ok, signed by:\n");
for (i = 0; i < sk_X509_num(signers); i++) {
name = X509_get_subject_name(sk_X509_value(signers, i));
subject = X509_NAME_oneline(name, NULL, 0);
printf("\t%s\n", subject);
OPENSSL_free(subject);
}
status = 0;
cleanup:
sk_X509_free(cert_chain);
sk_X509_free(signers);
X509_STORE_free(store);
PKCS7_free(p7);
BIO_free(in);
BIO_free(sig);
return status;
}
int
smime_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;
char *signerfile = NULL, *recipfile = NULL;
STACK_OF(OPENSSL_STRING) * sksigners = NULL, *skkeys = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
const EVP_CIPHER *cipher = NULL;
PKCS7 *p7 = 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;
int badarg = 0;
int flags = PKCS7_DETACHED;
char *to = NULL, *from = NULL, *subject = NULL;
char *CAfile = NULL, *CApath = NULL;
char *passargin = NULL, *passin = NULL;
int indef = 0;
const EVP_MD *sign_md = NULL;
int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
int keyform = FORMAT_PEM;
#ifndef OPENSSL_NO_ENGINE
char *engine = NULL;
#endif
X509_VERIFY_PARAM *vpm = NULL;
args = argv + 1;
ret = 1;
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, "-resign"))
operation = SMIME_RESIGN;
else if (!strcmp(*args, "-verify"))
operation = SMIME_VERIFY;
else if (!strcmp(*args, "-pk7out"))
operation = SMIME_PK7OUT;
#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_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 |= PKCS7_TEXT;
else if (!strcmp(*args, "-nointern"))
flags |= PKCS7_NOINTERN;
else if (!strcmp(*args, "-noverify"))
flags |= PKCS7_NOVERIFY;
else if (!strcmp(*args, "-nochain"))
flags |= PKCS7_NOCHAIN;
else if (!strcmp(*args, "-nocerts"))
flags |= PKCS7_NOCERTS;
else if (!strcmp(*args, "-noattr"))
flags |= PKCS7_NOATTR;
else if (!strcmp(*args, "-nodetach"))
flags &= ~PKCS7_DETACHED;
else if (!strcmp(*args, "-nosmimecap"))
flags |= PKCS7_NOSMIMECAP;
else if (!strcmp(*args, "-binary"))
flags |= PKCS7_BINARY;
else if (!strcmp(*args, "-nosigs"))
flags |= PKCS7_NOSIGS;
else if (!strcmp(*args, "-stream"))
indef = 1;
else if (!strcmp(*args, "-indef"))
indef = 1;
else if (!strcmp(*args, "-noindef"))
indef = 0;
else if (!strcmp(*args, "-nooldmime"))
flags |= PKCS7_NOOLDMIMETYPE;
else if (!strcmp(*args, "-crlfeol"))
flags |= PKCS7_CRLFEOL;
#ifndef OPENSSL_NO_ENGINE
else if (!strcmp(*args, "-engine")) {
if (!args[1])
goto argerr;
engine = *++args;
}
#endif
else if (!strcmp(*args, "-passin")) {
if (!args[1])
goto argerr;
passargin = *++args;
} else if (!strcmp(*args, "-to")) {
if (!args[1])
goto argerr;
to = *++args;
} else if (!strcmp(*args, "-from")) {
if (!args[1])
goto argerr;
from = *++args;
} else if (!strcmp(*args, "-subject")) {
if (!args[1])
goto argerr;
subject = *++args;
} else if (!strcmp(*args, "-signer")) {
if (!args[1])
goto argerr;
/* If previous -signer argument add signer to list */
if (signerfile) {
if (!sksigners)
sksigners = sk_OPENSSL_STRING_new_null();
sk_OPENSSL_STRING_push(sksigners, signerfile);
if (!keyfile)
keyfile = signerfile;
if (!skkeys)
skkeys = sk_OPENSSL_STRING_new_null();
sk_OPENSSL_STRING_push(skkeys, keyfile);
keyfile = NULL;
}
signerfile = *++args;
} else if (!strcmp(*args, "-recip")) {
if (!args[1])
goto argerr;
recipfile = *++args;
} else if (!strcmp(*args, "-md")) {
if (!args[1])
goto argerr;
sign_md = EVP_get_digestbyname(*++args);
if (sign_md == NULL) {
BIO_printf(bio_err, "Unknown digest %s\n",
*args);
goto argerr;
}
} else if (!strcmp(*args, "-inkey")) {
if (!args[1])
goto argerr;
/* If previous -inkey arument add signer to list */
if (keyfile) {
if (!signerfile) {
BIO_puts(bio_err, "Illegal -inkey without -signer\n");
goto argerr;
}
if (!sksigners)
sksigners = sk_OPENSSL_STRING_new_null();
sk_OPENSSL_STRING_push(sksigners, signerfile);
signerfile = NULL;
if (!skkeys)
skkeys = sk_OPENSSL_STRING_new_null();
sk_OPENSSL_STRING_push(skkeys, keyfile);
}
keyfile = *++args;
} else if (!strcmp(*args, "-keyform")) {
if (!args[1])
goto argerr;
keyform = str2fmt(*++args);
} else if (!strcmp(*args, "-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 (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
goto argerr;
}
if (operation & SMIME_SIGNERS) {
/* Check to see if any final signer needs to be appended */
if (keyfile && !signerfile) {
BIO_puts(bio_err, "Illegal -inkey without -signer\n");
goto argerr;
}
if (signerfile) {
if (!sksigners)
sksigners = sk_OPENSSL_STRING_new_null();
sk_OPENSSL_STRING_push(sksigners, signerfile);
if (!skkeys)
skkeys = sk_OPENSSL_STRING_new_null();
if (!keyfile)
keyfile = signerfile;
sk_OPENSSL_STRING_push(skkeys, keyfile);
}
if (!sksigners) {
BIO_printf(bio_err, "No signer certificate specified\n");
badarg = 1;
}
signerfile = NULL;
keyfile = NULL;
} else if (operation == SMIME_DECRYPT) {
if (!recipfile && !keyfile) {
BIO_printf(bio_err, "No recipient certificate or key specified\n");
badarg = 1;
}
} else if (operation == SMIME_ENCRYPT) {
if (!*args) {
BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
badarg = 1;
}
} else if (!operation)
badarg = 1;
if (badarg) {
argerr:
BIO_printf(bio_err, "Usage smime [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, "-pk7out output PKCS#7 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_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, "-signer file signer certificate file\n");
BIO_printf(bio_err, "-recip file recipient certificate file for decryption\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, "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;
}
ret = 2;
if (!(operation & SMIME_SIGNERS))
flags &= ~PKCS7_DETACHED;
if (operation & SMIME_OP) {
if (outformat == FORMAT_ASN1)
outmode = "wb";
} else {
if (flags & PKCS7_BINARY)
outmode = "wb";
}
if (operation & SMIME_IP) {
if (informat == FORMAT_ASN1)
inmode = "rb";
} else {
if (flags & PKCS7_BINARY)
inmode = "rb";
}
if (operation == SMIME_ENCRYPT) {
if (!cipher) {
#ifndef OPENSSL_NO_RC2
cipher = EVP_rc2_40_cbc();
#else
BIO_printf(bio_err, "No cipher selected\n");
goto end;
#endif
}
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_DECRYPT) {
if (!keyfile)
keyfile = recipfile;
} else if (operation == SMIME_SIGN) {
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)
p7 = SMIME_read_PKCS7(in, &indata);
else if (informat == FORMAT_PEM)
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
else if (informat == FORMAT_ASN1)
p7 = d2i_PKCS7_bio(in, NULL);
else {
BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
goto end;
}
if (!p7) {
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 (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);
}
if (operation == SMIME_VERIFY) {
if (!(store = setup_verify(bio_err, CAfile, CApath)))
goto end;
X509_STORE_set_verify_cb(store, smime_cb);
if (vpm)
X509_STORE_set1_param(store, vpm);
}
ret = 3;
if (operation == SMIME_ENCRYPT) {
if (indef)
flags |= PKCS7_STREAM;
p7 = PKCS7_encrypt(encerts, in, cipher, flags);
} else if (operation & SMIME_SIGNERS) {
int i;
/*
* If detached data content we only enable streaming if
* S/MIME output format.
*/
if (operation == SMIME_SIGN) {
if (flags & PKCS7_DETACHED) {
if (outformat == FORMAT_SMIME)
flags |= PKCS7_STREAM;
} else if (indef)
flags |= PKCS7_STREAM;
flags |= PKCS7_PARTIAL;
p7 = PKCS7_sign(NULL, NULL, other, in, flags);
if (!p7)
goto end;
} else
flags |= PKCS7_REUSE_DIGEST;
for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
signerfile = sk_OPENSSL_STRING_value(sksigners, i);
keyfile = sk_OPENSSL_STRING_value(skkeys, i);
signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
e, "signer certificate");
if (!signer)
goto end;
key = load_key(bio_err, keyfile, keyform, 0, passin, e,
"signing key file");
if (!key)
goto end;
if (!PKCS7_sign_add_signer(p7, signer, key,
sign_md, flags))
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 & PKCS7_STREAM)) {
if (!PKCS7_final(p7, in, flags))
goto end;
}
}
if (!p7) {
BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
goto end;
}
ret = 4;
if (operation == SMIME_DECRYPT) {
if (!PKCS7_decrypt(p7, key, recip, out, flags)) {
BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
goto end;
}
} else if (operation == SMIME_VERIFY) {
STACK_OF(X509) * signers;
if (PKCS7_verify(p7, other, store, indata, out, flags))
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
signers = PKCS7_get0_signers(p7, other, flags);
if (!save_certs(signerfile, signers)) {
BIO_printf(bio_err, "Error writing signers to %s\n",
signerfile);
ret = 5;
goto end;
}
sk_X509_free(signers);
} else if (operation == SMIME_PK7OUT)
PEM_write_bio_PKCS7(out, p7);
else {
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 (outformat == FORMAT_SMIME) {
if (operation == SMIME_RESIGN)
SMIME_write_PKCS7(out, p7, indata, flags);
else
SMIME_write_PKCS7(out, p7, in, flags);
} else if (outformat == FORMAT_PEM)
PEM_write_bio_PKCS7_stream(out, p7, in, flags);
else if (outformat == FORMAT_ASN1)
i2d_PKCS7_bio_stream(out, p7, in, flags);
else {
BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
goto end;
}
}
ret = 0;
end:
if (ret)
ERR_print_errors(bio_err);
sk_X509_pop_free(encerts, X509_free);
sk_X509_pop_free(other, X509_free);
if (vpm)
X509_VERIFY_PARAM_free(vpm);
if (sksigners)
sk_OPENSSL_STRING_free(sksigners);
if (skkeys)
sk_OPENSSL_STRING_free(skkeys);
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
X509_free(signer);
EVP_PKEY_free(key);
PKCS7_free(p7);
BIO_free(in);
BIO_free(indata);
BIO_free_all(out);
free(passin);
return (ret);
}
PKCS7* CryptoNative_PemReadBioPkcs7(BIO* bp)
{
return PEM_read_bio_PKCS7(bp, NULL, NULL, NULL);
}
int MAIN(int argc, char **argv)
{
PKCS7 *p7=NULL;
int i,badops=0;
BIO *in=NULL,*out=NULL;
int informat,outformat;
char *infile,*outfile,*prog;
int print_certs=0,text=0,noout=0,p7_print=0;
int ret=1;
#ifndef OPENSSL_NO_ENGINE
char *engine=NULL;
#endif
apps_startup();
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,OPENSSL_TYPE__FILE_STDERR,BIO_NOCLOSE|BIO_FP_TEXT);
if (!load_config(bio_err, NULL))
goto end;
infile=NULL;
outfile=NULL;
informat=FORMAT_PEM;
outformat=FORMAT_PEM;
prog=argv[0];
argc--;
argv++;
while (argc >= 1)
{
if (TINYCLR_SSL_STRCMP(*argv,"-inform") == 0)
{
if (--argc < 1) goto bad;
informat=str2fmt(*(++argv));
}
else if (TINYCLR_SSL_STRCMP(*argv,"-outform") == 0)
{
if (--argc < 1) goto bad;
outformat=str2fmt(*(++argv));
}
else if (TINYCLR_SSL_STRCMP(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
infile= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-out") == 0)
{
if (--argc < 1) goto bad;
outfile= *(++argv);
}
else if (TINYCLR_SSL_STRCMP(*argv,"-noout") == 0)
noout=1;
else if (TINYCLR_SSL_STRCMP(*argv,"-text") == 0)
text=1;
else if (TINYCLR_SSL_STRCMP(*argv,"-print") == 0)
p7_print=1;
else if (TINYCLR_SSL_STRCMP(*argv,"-print_certs") == 0)
print_certs=1;
#ifndef OPENSSL_NO_ENGINE
else if (TINYCLR_SSL_STRCMP(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
engine= *(++argv);
}
#endif
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badops=1;
break;
}
argc--;
argv++;
}
if (badops)
{
bad:
BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
BIO_printf(bio_err,"where options are\n");
BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
BIO_printf(bio_err," -in arg input file\n");
BIO_printf(bio_err," -out arg output file\n");
BIO_printf(bio_err," -print_certs print any certs or crl in the input\n");
BIO_printf(bio_err," -text print full details of certificates\n");
BIO_printf(bio_err," -noout don't output encoded data\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
#endif
ret = 1;
goto end;
}
ERR_load_crypto_strings();
#ifndef OPENSSL_NO_ENGINE
setup_engine(bio_err, engine, 0);
#endif
in=BIO_new(BIO_s_file());
out=BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
if (infile == NULL)
BIO_set_fp(in,OPENSSL_TYPE__FILE_STDIN,BIO_NOCLOSE);
else
{
if (BIO_read_filename(in,infile) <= 0)
if (in == NULL)
{
TINYCLR_SSL_PERROR(infile);
goto end;
}
}
if (informat == FORMAT_ASN1)
p7=d2i_PKCS7_bio(in,NULL);
else if (informat == FORMAT_PEM)
p7=PEM_read_bio_PKCS7(in,NULL,NULL,NULL);
else
{
BIO_printf(bio_err,"bad input format specified for pkcs7 object\n");
goto end;
}
if (p7 == NULL)
{
BIO_printf(bio_err,"unable to load PKCS7 object\n");
ERR_print_errors(bio_err);
goto end;
}
if (outfile == NULL)
{
BIO_set_fp(out,OPENSSL_TYPE__FILE_STDOUT,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
else
{
if (BIO_write_filename(out,outfile) <= 0)
{
TINYCLR_SSL_PERROR(outfile);
goto end;
}
}
if (p7_print)
PKCS7_print_ctx(out, p7, 0, NULL);
if (print_certs)
{
STACK_OF(X509) *certs=NULL;
STACK_OF(X509_CRL) *crls=NULL;
i=OBJ_obj2nid(p7->type);
switch (i)
{
case NID_pkcs7_signed:
certs=p7->d.sign->cert;
crls=p7->d.sign->crl;
break;
case NID_pkcs7_signedAndEnveloped:
certs=p7->d.signed_and_enveloped->cert;
crls=p7->d.signed_and_enveloped->crl;
break;
default:
break;
}
if (certs != NULL)
{
X509 *x;
for (i=0; i<sk_X509_num(certs); i++)
{
x=sk_X509_value(certs,i);
if(text) X509_print(out, x);
else dump_cert_text(out, x);
if(!noout) PEM_write_bio_X509(out,x);
BIO_puts(out,"\n");
}
}
if (crls != NULL)
{
X509_CRL *crl;
for (i=0; i<sk_X509_CRL_num(crls); i++)
{
crl=sk_X509_CRL_value(crls,i);
X509_CRL_print(out, crl);
if(!noout)PEM_write_bio_X509_CRL(out,crl);
BIO_puts(out,"\n");
}
}
ret=0;
goto end;
}
if(!noout) {
if (outformat == FORMAT_ASN1)
i=i2d_PKCS7_bio(out,p7);
else if (outformat == FORMAT_PEM)
i=PEM_write_bio_PKCS7(out,p7);
else {
BIO_printf(bio_err,"bad output format specified for outfile\n");
goto end;
}
if (!i)
{
BIO_printf(bio_err,"unable to write pkcs7 object\n");
ERR_print_errors(bio_err);
goto end;
}
}
ret=0;
end:
if (p7 != NULL) PKCS7_free(p7);
if (in != NULL) BIO_free(in);
if (out != NULL) BIO_free_all(out);
apps_shutdown();
OPENSSL_EXIT(ret);
}
int
pkcs7_main(int argc, char **argv)
{
PKCS7 *p7 = NULL;
BIO *in = NULL, *out = NULL;
int ret = 1;
int i;
memset(&pkcs7_config, 0, sizeof(pkcs7_config));
pkcs7_config.informat = FORMAT_PEM;
pkcs7_config.outformat = FORMAT_PEM;
if (options_parse(argc, argv, pkcs7_options, NULL, NULL) != 0) {
pkcs7_usage();
goto end;
}
#ifndef OPENSSL_NO_ENGINE
setup_engine(bio_err, pkcs7_config.engine, 0);
#endif
in = BIO_new(BIO_s_file());
out = BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL)) {
ERR_print_errors(bio_err);
goto end;
}
if (pkcs7_config.infile == NULL)
BIO_set_fp(in, stdin, BIO_NOCLOSE);
else {
if (BIO_read_filename(in, pkcs7_config.infile) <= 0) {
perror(pkcs7_config.infile);
goto end;
}
}
if (pkcs7_config.informat == FORMAT_ASN1)
p7 = d2i_PKCS7_bio(in, NULL);
else if (pkcs7_config.informat == FORMAT_PEM)
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
else {
BIO_printf(bio_err, "bad input format specified for pkcs7 object\n");
goto end;
}
if (p7 == NULL) {
BIO_printf(bio_err, "unable to load PKCS7 object\n");
ERR_print_errors(bio_err);
goto end;
}
if (pkcs7_config.outfile == NULL) {
BIO_set_fp(out, stdout, BIO_NOCLOSE);
} else {
if (BIO_write_filename(out, pkcs7_config.outfile) <= 0) {
perror(pkcs7_config.outfile);
goto end;
}
}
if (pkcs7_config.p7_print)
PKCS7_print_ctx(out, p7, 0, NULL);
if (pkcs7_config.print_certs) {
STACK_OF(X509) * certs = NULL;
STACK_OF(X509_CRL) * crls = NULL;
i = OBJ_obj2nid(p7->type);
switch (i) {
case NID_pkcs7_signed:
certs = p7->d.sign->cert;
crls = p7->d.sign->crl;
break;
case NID_pkcs7_signedAndEnveloped:
certs = p7->d.signed_and_enveloped->cert;
crls = p7->d.signed_and_enveloped->crl;
break;
default:
break;
}
if (certs != NULL) {
X509 *x;
for (i = 0; i < sk_X509_num(certs); i++) {
x = sk_X509_value(certs, i);
if (pkcs7_config.text)
X509_print(out, x);
else
dump_cert_text(out, x);
if (!pkcs7_config.noout)
PEM_write_bio_X509(out, x);
BIO_puts(out, "\n");
}
}
if (crls != NULL) {
X509_CRL *crl;
for (i = 0; i < sk_X509_CRL_num(crls); i++) {
crl = sk_X509_CRL_value(crls, i);
X509_CRL_print(out, crl);
if (!pkcs7_config.noout)
PEM_write_bio_X509_CRL(out, crl);
BIO_puts(out, "\n");
}
}
ret = 0;
goto end;
}
if (!pkcs7_config.noout) {
if (pkcs7_config.outformat == FORMAT_ASN1)
i = i2d_PKCS7_bio(out, p7);
else if (pkcs7_config.outformat == FORMAT_PEM)
i = PEM_write_bio_PKCS7(out, p7);
else {
BIO_printf(bio_err, "bad output format specified for outfile\n");
goto end;
}
if (!i) {
BIO_printf(bio_err, "unable to write pkcs7 object\n");
ERR_print_errors(bio_err);
goto end;
}
}
ret = 0;
end:
if (p7 != NULL)
PKCS7_free(p7);
if (in != NULL)
BIO_free(in);
if (out != NULL)
BIO_free_all(out);
return (ret);
}
int
main(int argc, char **argv)
{
BIO *bio_in, *bio_content, *bio_out, *bio_cert, *bio_pkey;
STACK_OF(X509) *certs;
const EVP_CIPHER *cipher;
EVP_PKEY *pkey;
X509_STORE *store;
X509 *cert;
PKCS7 *p7;
size_t len;
char *out;
int flags;
ERR_load_crypto_strings();
OpenSSL_add_all_algorithms();
/*
* A bunch of setup...
*/
cipher = EVP_aes_256_cbc();
if (cipher == NULL)
fatal("cipher");
certs = sk_X509_new_null();
if (certs == NULL)
fatal("sk_X509_new_null");
bio_cert = BIO_new_mem_buf((char *)certificate, sizeof(certificate));
if (bio_cert == NULL)
fatal("BIO_new_mem_buf certificate");
cert = PEM_read_bio_X509_AUX(bio_cert, NULL, NULL, NULL);
if (cert == NULL)
fatal("PEM_read_bio_X509_AUX");
sk_X509_push(certs, cert);
store = X509_STORE_new();
if (store == NULL)
fatal("X509_STORE_new");
X509_STORE_set_verify_cb(store, x509_store_callback);
bio_pkey = BIO_new_mem_buf((char *)private_key, sizeof(private_key));
if (bio_pkey == NULL)
fatal("BIO_new_mem_buf private_key");
pkey = PEM_read_bio_PrivateKey(bio_pkey, NULL, NULL, NULL);
if (pkey == NULL)
fatal("PEM_read_bio_PrivateKey");
bio_content = BIO_new_mem_buf((char *)message, sizeof(message));
if (bio_content == NULL)
fatal("BIO_new_mem_buf message");
/*
* Encrypt and then decrypt.
*/
if (BIO_reset(bio_content) != 1)
fatal("BIO_reset");
bio_out = BIO_new(BIO_s_mem());
if (bio_out == NULL)
fatal("BIO_new");
p7 = PKCS7_encrypt(certs, bio_content, cipher, 0);
if (p7 == NULL)
fatal("PKCS7_encrypt");
if (PEM_write_bio_PKCS7(bio_out, p7) != 1)
fatal("PEM_write_bio_PKCS7");
PKCS7_free(p7);
bio_in = bio_out;
bio_out = BIO_new(BIO_s_mem());
if (bio_out == NULL)
fatal("BIO_new");
p7 = PEM_read_bio_PKCS7(bio_in, NULL, NULL, NULL);
if (p7 == NULL)
fatal("PEM_read_bio_PKCS7");
if (PKCS7_decrypt(p7, pkey, cert, bio_out, 0) != 1)
fatal("PKCS7_decrypt");
len = BIO_get_mem_data(bio_out, &out);
message_compare(out, len);
BIO_free(bio_out);
/*
* Sign and then verify.
*/
if (BIO_reset(bio_content) != 1)
fatal("BIO_reset");
bio_out = BIO_new(BIO_s_mem());
if (bio_out == NULL)
fatal("BIO_new");
p7 = PKCS7_sign(cert, pkey, certs, bio_content, 0);
if (p7 == NULL)
fatal("PKCS7_sign");
if (PEM_write_bio_PKCS7(bio_out, p7) != 1)
fatal("PEM_write_bio_PKCS7");
PKCS7_free(p7);
bio_in = bio_out;
bio_out = BIO_new(BIO_s_mem());
if (bio_out == NULL)
fatal("BIO_new");
p7 = PEM_read_bio_PKCS7(bio_in, NULL, NULL, NULL);
if (p7 == NULL)
fatal("PEM_read_bio_PKCS7");
if (PKCS7_verify(p7, certs, store, NULL, bio_out, 0) != 1)
fatal("PKCS7_verify");
len = BIO_get_mem_data(bio_out, &out);
message_compare(out, len);
BIO_free(bio_in);
BIO_free(bio_out);
/*
* Sign and then verify with a detached signature.
*/
if (BIO_reset(bio_content) != 1)
fatal("BIO_reset");
bio_out = BIO_new(BIO_s_mem());
if (bio_out == NULL)
fatal("BIO_new");
flags = PKCS7_DETACHED|PKCS7_PARTIAL;
p7 = PKCS7_sign(NULL, NULL, NULL, bio_content, flags);
if (p7 == NULL)
fatal("PKCS7_sign");
if (PKCS7_sign_add_signer(p7, cert, pkey, NULL, flags) == NULL)
fatal("PKCS7_sign_add_signer");
if (PKCS7_final(p7, bio_content, flags) != 1)
fatal("PKCS7_final");
if (PEM_write_bio_PKCS7(bio_out, p7) != 1)
fatal("PEM_write_bio_PKCS7");
PKCS7_free(p7);
/* bio_out contains only the detached signature. */
bio_in = bio_out;
if (BIO_reset(bio_content) != 1)
fatal("BIO_reset");
bio_out = BIO_new(BIO_s_mem());
if (bio_out == NULL)
fatal("BIO_new");
p7 = PEM_read_bio_PKCS7(bio_in, NULL, NULL, NULL);
if (p7 == NULL)
fatal("PEM_read_bio_PKCS7");
if (PKCS7_verify(p7, certs, store, bio_content, bio_out, flags) != 1)
fatal("PKCS7_verify");
len = BIO_get_mem_data(bio_out, &out);
message_compare(out, len);
BIO_free(bio_in);
BIO_free(bio_out);
BIO_free(bio_content);
return 0;
}