static int openssl_cms_sign(lua_State *L)
{
X509* signcert = CHECK_OBJECT(1, X509, "openssl.x509");
EVP_PKEY* pkey = CHECK_OBJECT(2, EVP_PKEY, "openssl.evp_pkey");
STACK_OF(X509)* certs = CHECK_OBJECT(3, STACK_OF(X509), "openssl.stack_of_x509");
BIO* data = load_bio_object(L, 4);
unsigned int flags = luaL_optint(L, 5, 0);
CMS_ContentInfo *cms;
luaL_argcheck(L, openssl_pkey_is_private(pkey), 2, "must be private key");
cms = CMS_sign(signcert, pkey, certs, data, flags);
if (cms)
{
PUSH_OBJECT(cms, "openssl.cms");
return 1;
}
return openssl_pushresult(L, 0);
}
static int openssl_cms_sign(lua_State *L)
{
X509* signcert = CHECK_OBJECT(1, X509, "openssl.x509");
EVP_PKEY* pkey = CHECK_OBJECT(2, EVP_PKEY, "openssl.evp_pkey");
STACK_OF(X509)* certs = openssl_sk_x509_fromtable(L, 3);
BIO* data = load_bio_object(L, 4);
unsigned int flags = luaL_optint(L, 5, 0);
CMS_ContentInfo *cms;
cms = CMS_sign(signcert, pkey, certs, data, flags);
if (cms)
{
PUSH_OBJECT(cms, "openssl.cms");
return 1;
}
return openssl_pushresult(L, 0);
}
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(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
char *certsoutfile = NULL;
const EVP_CIPHER *cipher = NULL, *wrap_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(OPENSSL_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;
unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
size_t secret_keylen = 0, secret_keyidlen = 0;
cms_key_param *key_first = NULL, *key_param = NULL;
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();
else if (!strcmp(*args, "-des3-wrap"))
wrap_cipher = EVP_des_ede3_wrap();
# 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();
else if (!strcmp(*args, "-aes128-wrap"))
wrap_cipher = EVP_aes_128_wrap();
else if (!strcmp(*args, "-aes192-wrap"))
wrap_cipher = EVP_aes_192_wrap();
else if (!strcmp(*args, "-aes256-wrap"))
wrap_cipher = EVP_aes_256_wrap();
# 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, "-debug_decrypt"))
flags |= CMS_DEBUG_DECRYPT;
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_OPENSSL_STRING_new_null();
sk_OPENSSL_STRING_push(rr_from, *args);
} else if (!strcmp(*args, "-receipt_request_to")) {
if (!args[1])
goto argerr;
args++;
if (!rr_to)
rr_to = sk_OPENSSL_STRING_new_null();
sk_OPENSSL_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, <mp);
if (!secret_key) {
BIO_printf(bio_err, "Invalid key %s\n", *args);
goto argerr;
}
secret_keylen = (size_t)ltmp;
} else if (!strcmp(*args, "-secretkeyid")) {
long ltmp;
if (!args[1])
goto argerr;
args++;
secret_keyid = string_to_hex(*args, <mp);
if (!secret_keyid) {
BIO_printf(bio_err, "Invalid id %s\n", *args);
goto argerr;
}
secret_keyidlen = (size_t)ltmp;
} else if (!strcmp(*args, "-pwri_password")) {
if (!args[1])
goto argerr;
args++;
pwri_pass = (unsigned char *)*args;
} 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_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;
if (operation == SMIME_ENCRYPT) {
if (!encerts)
encerts = sk_X509_new_null();
cert = load_cert(bio_err, *++args, FORMAT_PEM,
NULL, e, "recipient certificate file");
if (!cert)
goto end;
sk_X509_push(encerts, cert);
cert = NULL;
} else
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_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, "-keyopt")) {
int keyidx = -1;
if (!args[1])
goto argerr;
if (operation == SMIME_ENCRYPT) {
if (encerts)
keyidx += sk_X509_num(encerts);
} else {
if (keyfile || signerfile)
keyidx++;
if (skkeys)
keyidx += sk_OPENSSL_STRING_num(skkeys);
}
if (keyidx < 0) {
BIO_printf(bio_err, "No key specified\n");
goto argerr;
}
if (key_param == NULL || key_param->idx != keyidx) {
cms_key_param *nparam;
nparam = OPENSSL_malloc(sizeof(cms_key_param));
if (!nparam) {
BIO_printf(bio_err, "Out of memory\n");
goto argerr;
}
nparam->idx = keyidx;
nparam->param = sk_OPENSSL_STRING_new_null();
nparam->next = NULL;
if (key_first == NULL)
key_first = nparam;
else
key_param->next = nparam;
key_param = nparam;
}
sk_OPENSSL_STRING_push(key_param->param, *++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_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;
need_rand = 1;
}
else if (operation == SMIME_DECRYPT) {
if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
BIO_printf(bio_err,
"No recipient certificate or key specified\n");
badarg = 1;
}
} else if (operation == SMIME_ENCRYPT) {
if (!*args && !secret_key && !pwri_pass && !encerts) {
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, "-keyid 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, "-keyopt nm:v set public key parameters\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,
"-trusted_first use trusted certificates first when building the trust chain\n");
BIO_printf(bio_err,
"-no_alt_chains only ever use the first certificate chain found\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 secret key id\n");
goto end;
}
if (*args && !encerts)
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(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) {
int i;
flags |= CMS_PARTIAL;
cms = CMS_encrypt(NULL, in, cipher, flags);
if (!cms)
goto end;
for (i = 0; i < sk_X509_num(encerts); i++) {
CMS_RecipientInfo *ri;
cms_key_param *kparam;
int tflags = flags;
X509 *x = sk_X509_value(encerts, i);
for (kparam = key_first; kparam; kparam = kparam->next) {
if (kparam->idx == i) {
tflags |= CMS_KEY_PARAM;
break;
}
}
ri = CMS_add1_recipient_cert(cms, x, tflags);
if (!ri)
goto end;
if (kparam) {
EVP_PKEY_CTX *pctx;
pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
&& wrap_cipher) {
EVP_CIPHER_CTX *wctx;
wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
}
}
if (secret_key) {
if (!CMS_add0_recipient_key(cms, NID_undef,
secret_key, secret_keylen,
secret_keyid, secret_keyidlen,
NULL, NULL, NULL))
goto end;
/* NULL these because call absorbs them */
secret_key = NULL;
secret_keyid = NULL;
}
if (pwri_pass) {
pwri_tmp = (unsigned char *)BUF_strdup((char *)pwri_pass);
if (!pwri_tmp)
goto end;
if (!CMS_add0_recipient_password(cms,
-1, NID_undef, NID_undef,
pwri_tmp, -1, NULL))
goto end;
pwri_tmp = NULL;
}
if (!(flags & CMS_STREAM)) {
if (!CMS_final(cms, in, NULL, flags))
goto end;
}
} else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
cms = CMS_EncryptedData_encrypt(in, cipher,
secret_key, secret_keylen, flags);
} else if (operation == SMIME_SIGN_RECEIPT) {
CMS_ContentInfo *srcms = NULL;
STACK_OF(CMS_SignerInfo) *sis;
CMS_SignerInfo *si;
sis = CMS_get0_SignerInfos(cms);
if (!sis)
goto end;
si = sk_CMS_SignerInfo_value(sis, 0);
srcms = CMS_sign_receipt(si, signer, key, other, flags);
if (!srcms)
goto end;
CMS_ContentInfo_free(cms);
cms = srcms;
} else if (operation & SMIME_SIGNERS) {
int i;
/*
* If detached data content we enable streaming if S/MIME output
* format.
*/
if (operation == SMIME_SIGN) {
if (flags & CMS_DETACHED) {
if (outformat == FORMAT_SMIME)
flags |= CMS_STREAM;
}
flags |= CMS_PARTIAL;
cms = CMS_sign(NULL, NULL, other, in, flags);
if (!cms)
goto end;
if (econtent_type)
CMS_set1_eContentType(cms, econtent_type);
if (rr_to) {
rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
if (!rr) {
BIO_puts(bio_err,
"Signed Receipt Request Creation Error\n");
goto end;
}
}
} else
flags |= CMS_REUSE_DIGEST;
for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
CMS_SignerInfo *si;
cms_key_param *kparam;
int tflags = flags;
signerfile = sk_OPENSSL_STRING_value(sksigners, i);
keyfile = sk_OPENSSL_STRING_value(skkeys, i);
signer = load_cert(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;
for (kparam = key_first; kparam; kparam = kparam->next) {
if (kparam->idx == i) {
tflags |= CMS_KEY_PARAM;
break;
}
}
si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
if (!si)
goto end;
if (kparam) {
EVP_PKEY_CTX *pctx;
pctx = CMS_SignerInfo_get0_pkey_ctx(si);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
if (rr && !CMS_add1_ReceiptRequest(si, rr))
goto end;
X509_free(signer);
signer = NULL;
EVP_PKEY_free(key);
key = NULL;
}
/* If not streaming or resigning finalize structure */
if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
if (!CMS_final(cms, in, NULL, flags))
goto end;
}
}
if (!cms) {
BIO_printf(bio_err, "Error creating CMS structure\n");
goto end;
}
ret = 4;
if (operation == SMIME_DECRYPT) {
if (flags & CMS_DEBUG_DECRYPT)
CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
if (secret_key) {
if (!CMS_decrypt_set1_key(cms,
secret_key, secret_keylen,
secret_keyid, secret_keyidlen)) {
BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
goto end;
}
}
if (key) {
if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
BIO_puts(bio_err, "Error decrypting CMS using private key\n");
goto end;
}
}
if (pwri_pass) {
if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
BIO_puts(bio_err, "Error decrypting CMS using password\n");
goto end;
}
}
if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
BIO_printf(bio_err, "Error decrypting CMS structure\n");
goto end;
}
} else if (operation == SMIME_DATAOUT) {
if (!CMS_data(cms, out, flags))
goto end;
} else if (operation == SMIME_UNCOMPRESS) {
if (!CMS_uncompress(cms, indata, out, flags))
goto end;
} else if (operation == SMIME_DIGEST_VERIFY) {
if (CMS_digest_verify(cms, indata, out, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
} else if (operation == SMIME_ENCRYPTED_DECRYPT) {
if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
indata, out, flags))
goto end;
} else if (operation == SMIME_VERIFY) {
if (CMS_verify(cms, other, store, indata, out, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
if (verify_retcode)
ret = verify_err + 32;
goto end;
}
if (signerfile) {
STACK_OF(X509) *signers;
signers = CMS_get0_signers(cms);
if (!save_certs(signerfile, signers)) {
BIO_printf(bio_err,
"Error writing signers to %s\n", signerfile);
ret = 5;
goto end;
}
sk_X509_free(signers);
}
if (rr_print)
receipt_request_print(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_OPENSSL_STRING_free(sksigners);
if (skkeys)
sk_OPENSSL_STRING_free(skkeys);
if (secret_key)
OPENSSL_free(secret_key);
if (secret_keyid)
OPENSSL_free(secret_keyid);
if (pwri_tmp)
OPENSSL_free(pwri_tmp);
if (econtent_type)
ASN1_OBJECT_free(econtent_type);
if (rr)
CMS_ReceiptRequest_free(rr);
if (rr_to)
sk_OPENSSL_STRING_free(rr_to);
if (rr_from)
sk_OPENSSL_STRING_free(rr_from);
for (key_param = key_first; key_param;) {
cms_key_param *tparam;
sk_OPENSSL_STRING_free(key_param->param);
tparam = key_param->next;
OPENSSL_free(key_param);
key_param = tparam;
}
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
X509_free(signer);
EVP_PKEY_free(key);
CMS_ContentInfo_free(cms);
CMS_ContentInfo_free(rcms);
BIO_free(rctin);
BIO_free(in);
BIO_free(indata);
BIO_free_all(out);
if (passin)
OPENSSL_free(passin);
return (ret);
}
int main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL, *tbio = NULL;
X509 *scert = NULL;
EVP_PKEY *skey = NULL;
CMS_ContentInfo *cms = NULL;
int ret = 1;
/*
* For simple S/MIME signing use CMS_DETACHED. On OpenSSL 1.0.0 only: for
* streaming detached set CMS_DETACHED|CMS_STREAM for streaming
* non-detached set CMS_STREAM
*/
int flags = CMS_DETACHED | CMS_STREAM;
OpenSSL_add_all_algorithms();
ERR_load_crypto_strings();
/* Read in signer certificate and private key */
tbio = BIO_new_file("signer.pem", "r");
if (!tbio)
goto err;
scert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
BIO_reset(tbio);
skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
if (!scert || !skey)
goto err;
/* Open content being signed */
in = BIO_new_file("sign.txt", "r");
if (!in)
goto err;
/* Sign content */
cms = CMS_sign(scert, skey, NULL, in, flags);
if (!cms)
goto err;
out = BIO_new_file("smout.txt", "w");
if (!out)
goto err;
if (!(flags & CMS_STREAM))
BIO_reset(in);
/* Write out S/MIME message */
if (!SMIME_write_CMS(out, cms, in, flags))
goto err;
ret = 0;
err:
if (ret) {
fprintf(stderr, "Error Signing Data\n");
ERR_print_errors_fp(stderr);
}
if (cms)
CMS_ContentInfo_free(cms);
if (scert)
X509_free(scert);
EVP_PKEY_free(skey);
BIO_free(in);
BIO_free(out);
BIO_free(tbio);
return ret;
}
int main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL, *tbio = NULL;
X509 *scert = NULL, *scert2 = NULL;
EVP_PKEY *skey = NULL, *skey2 = NULL;
CMS_ContentInfo *cms = NULL;
int ret = 1;
OpenSSL_add_all_algorithms();
ERR_load_crypto_strings();
tbio = BIO_new_file("signer.pem", "r");
if (!tbio)
goto err;
scert = PEM_read_bio_X509(tbio, NULL, 0, NULL);
BIO_reset(tbio);
skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
BIO_free(tbio);
tbio = BIO_new_file("signer2.pem", "r");
if (!tbio)
goto err;
scert2 = PEM_read_bio_X509(tbio, NULL, 0, NULL);
BIO_reset(tbio);
skey2 = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL);
if (!scert2 || !skey2)
goto err;
in = BIO_new_file("sign.txt", "r");
if (!in)
goto err;
cms = CMS_sign(NULL, NULL, NULL, in, CMS_STREAM|CMS_PARTIAL);
if (!cms)
goto err;
/* Add each signer in turn */
if (!CMS_add1_signer(cms, scert, skey, NULL, 0))
goto err;
if (!CMS_add1_signer(cms, scert2, skey2, NULL, 0))
goto err;
out = BIO_new_file("smout.txt", "w");
if (!out)
goto err;
/* NB: content included and finalized by SMIME_write_CMS */
if (!SMIME_write_CMS(out, cms, in, CMS_STREAM))
goto err;
ret = 0;
err:
if (ret)
{
fprintf(stderr, "Error Signing Data\n");
ERR_print_errors_fp(stderr);
}
if (cms)
CMS_ContentInfo_free(cms);
if (scert)
X509_free(scert);
if (skey)
EVP_PKEY_free(skey);
if (scert2)
X509_free(scert2);
if (skey)
EVP_PKEY_free(skey2);
if (in)
BIO_free(in);
if (out)
BIO_free(out);
if (tbio)
BIO_free(tbio);
return ret;
}
int32_t mz_crypt_sign(uint8_t *message, int32_t message_size, uint8_t *cert_data, int32_t cert_data_size,
const char *cert_pwd, uint8_t **signature, int32_t *signature_size)
{
PKCS12 *p12 = NULL;
EVP_PKEY *evp_pkey = NULL;
BUF_MEM *buf_mem = NULL;
BIO *cert_bio = NULL;
BIO *message_bio = NULL;
BIO *signature_bio = NULL;
CMS_ContentInfo *cms = NULL;
CMS_SignerInfo *signer_info = NULL;
STACK_OF(X509) *ca_stack = NULL;
X509 *cert = NULL;
int32_t result = 0;
int32_t err = MZ_OK;
if (message == NULL || cert_data == NULL || signature == NULL || signature_size == NULL)
return MZ_PARAM_ERROR;
mz_crypt_init();
*signature = NULL;
*signature_size = 0;
cert_bio = BIO_new_mem_buf(cert_data, cert_data_size);
if (d2i_PKCS12_bio(cert_bio, &p12) == NULL)
err = MZ_SIGN_ERROR;
if (err == MZ_OK)
result = PKCS12_parse(p12, cert_pwd, &evp_pkey, &cert, &ca_stack);
if (result)
{
cms = CMS_sign(NULL, NULL, ca_stack, NULL, CMS_BINARY | CMS_PARTIAL);
if (cms)
signer_info = CMS_add1_signer(cms, cert, evp_pkey, EVP_sha256(), 0);
if (signer_info == NULL)
{
err = MZ_SIGN_ERROR;
}
else
{
message_bio = BIO_new_mem_buf(message, message_size);
signature_bio = BIO_new(BIO_s_mem());
result = CMS_final(cms, message_bio, NULL, CMS_BINARY);
if (result)
result = i2d_CMS_bio(signature_bio, cms);
if (result)
{
BIO_flush(signature_bio);
BIO_get_mem_ptr(signature_bio, &buf_mem);
*signature_size = buf_mem->length;
*signature = MZ_ALLOC(buf_mem->length);
memcpy(*signature, buf_mem->data, buf_mem->length);
}
#if 0
BIO *yy = BIO_new_file("xyz", "wb");
BIO_write(yy, *signature, *signature_size);
BIO_flush(yy);
BIO_free(yy);
#endif
}
}
if (!result)
err = MZ_SIGN_ERROR;
if (cms)
CMS_ContentInfo_free(cms);
if (signature_bio)
BIO_free(signature_bio);
if (cert_bio)
BIO_free(cert_bio);
if (message_bio)
BIO_free(message_bio);
if (p12)
PKCS12_free(p12);
if (err != MZ_OK && *signature != NULL)
{
MZ_FREE(*signature);
*signature = NULL;
*signature_size = 0;
}
return err;
}
int cms_main(int argc, char **argv)
{
ASN1_OBJECT *econtent_type = NULL;
BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
CMS_ContentInfo *cms = NULL, *rcms = NULL;
CMS_ReceiptRequest *rr = NULL;
ENGINE *e = NULL;
EVP_PKEY *key = NULL;
const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
const EVP_MD *sign_md = NULL;
STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
STACK_OF(X509) *encerts = NULL, *other = NULL;
X509 *cert = NULL, *recip = NULL, *signer = NULL;
X509_STORE *store = NULL;
X509_VERIFY_PARAM *vpm = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
const char *CAfile = NULL, *CApath = NULL;
char *certsoutfile = NULL;
int noCAfile = 0, noCApath = 0;
char *infile = NULL, *outfile = NULL, *rctfile = NULL, *inrand = NULL;
char *passinarg = NULL, *passin = NULL, *signerfile = NULL, *recipfile =
NULL;
char *to = NULL, *from = NULL, *subject = NULL, *prog;
cms_key_param *key_first = NULL, *key_param = NULL;
int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched =
0;
int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
int need_rand = 0, operation = 0, ret = 1, rr_print = 0, rr_allorfirst =
-1;
int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
size_t secret_keylen = 0, secret_keyidlen = 0;
unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
unsigned char *secret_key = NULL, *secret_keyid = NULL;
long ltmp;
const char *mime_eol = "\n";
OPTION_CHOICE o;
if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
return 1;
prog = opt_init(argc, argv, cms_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(cms_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
goto opthelp;
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_SIGN_RECEIPT:
operation = SMIME_SIGN_RECEIPT;
break;
case OPT_RESIGN:
operation = SMIME_RESIGN;
break;
case OPT_VERIFY:
operation = SMIME_VERIFY;
break;
case OPT_VERIFY_RETCODE:
verify_retcode = 1;
break;
case OPT_VERIFY_RECEIPT:
operation = SMIME_VERIFY_RECEIPT;
rctfile = opt_arg();
break;
case OPT_CMSOUT:
operation = SMIME_CMSOUT;
break;
case OPT_DATA_OUT:
operation = SMIME_DATAOUT;
break;
case OPT_DATA_CREATE:
operation = SMIME_DATA_CREATE;
break;
case OPT_DIGEST_VERIFY:
operation = SMIME_DIGEST_VERIFY;
break;
case OPT_DIGEST_CREATE:
operation = SMIME_DIGEST_CREATE;
break;
case OPT_COMPRESS:
operation = SMIME_COMPRESS;
break;
case OPT_UNCOMPRESS:
operation = SMIME_UNCOMPRESS;
break;
case OPT_ED_DECRYPT:
operation = SMIME_ENCRYPTED_DECRYPT;
break;
case OPT_ED_ENCRYPT:
operation = SMIME_ENCRYPTED_ENCRYPT;
break;
case OPT_DEBUG_DECRYPT:
flags |= CMS_DEBUG_DECRYPT;
break;
case OPT_TEXT:
flags |= CMS_TEXT;
break;
case OPT_ASCIICRLF:
flags |= CMS_ASCIICRLF;
break;
case OPT_NOINTERN:
flags |= CMS_NOINTERN;
break;
case OPT_NOVERIFY:
flags |= CMS_NO_SIGNER_CERT_VERIFY;
break;
case OPT_NOCERTS:
flags |= CMS_NOCERTS;
break;
case OPT_NOATTR:
flags |= CMS_NOATTR;
break;
case OPT_NODETACH:
flags &= ~CMS_DETACHED;
break;
case OPT_NOSMIMECAP:
flags |= CMS_NOSMIMECAP;
break;
case OPT_BINARY:
flags |= CMS_BINARY;
break;
case OPT_KEYID:
flags |= CMS_USE_KEYID;
break;
case OPT_NOSIGS:
flags |= CMS_NOSIGS;
break;
case OPT_NO_CONTENT_VERIFY:
flags |= CMS_NO_CONTENT_VERIFY;
break;
case OPT_NO_ATTR_VERIFY:
flags |= CMS_NO_ATTR_VERIFY;
break;
case OPT_INDEF:
flags |= CMS_STREAM;
break;
case OPT_NOINDEF:
flags &= ~CMS_STREAM;
break;
case OPT_NOOLDMIME:
flags |= CMS_NOOLDMIMETYPE;
break;
case OPT_CRLFEOL:
mime_eol = "\r\n";
flags |= CMS_CRLFEOL;
break;
case OPT_NOOUT:
noout = 1;
break;
case OPT_RR_PRINT:
rr_print = 1;
break;
case OPT_RR_ALL:
rr_allorfirst = 0;
break;
case OPT_RR_FIRST:
rr_allorfirst = 1;
break;
case OPT_RCTFORM:
if (rctformat == FORMAT_SMIME)
rcms = SMIME_read_CMS(rctin, NULL);
else if (rctformat == FORMAT_PEM)
rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
else if (rctformat == FORMAT_ASN1)
if (!opt_format(opt_arg(),
OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
goto opthelp;
break;
case OPT_CERTFILE:
certfile = opt_arg();
break;
case OPT_CAFILE:
CAfile = opt_arg();
break;
case OPT_CAPATH:
CApath = opt_arg();
break;
case OPT_NOCAFILE:
noCAfile = 1;
break;
case OPT_NOCAPATH:
noCApath = 1;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_CONTENT:
contfile = opt_arg();
break;
case OPT_RR_FROM:
if (rr_from == NULL
&& (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(rr_from, opt_arg());
break;
case OPT_RR_TO:
if (rr_to == NULL
&& (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(rr_to, opt_arg());
break;
case OPT_PRINT:
noout = print = 1;
break;
case OPT_SECRETKEY:
secret_key = OPENSSL_hexstr2buf(opt_arg(), <mp);
if (secret_key == NULL) {
BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
goto end;
}
secret_keylen = (size_t)ltmp;
break;
case OPT_SECRETKEYID:
secret_keyid = OPENSSL_hexstr2buf(opt_arg(), <mp);
if (secret_keyid == NULL) {
BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
goto opthelp;
}
secret_keyidlen = (size_t)ltmp;
break;
case OPT_PWRI_PASSWORD:
pwri_pass = (unsigned char *)opt_arg();
break;
case OPT_ECONTENT_TYPE:
econtent_type = OBJ_txt2obj(opt_arg(), 0);
if (econtent_type == NULL) {
BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
goto opthelp;
}
break;
case OPT_RAND:
inrand = opt_arg();
need_rand = 1;
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_TO:
to = opt_arg();
break;
case OPT_FROM:
from = opt_arg();
break;
case OPT_SUBJECT:
subject = opt_arg();
break;
case OPT_CERTSOUT:
certsoutfile = opt_arg();
break;
case OPT_MD:
if (!opt_md(opt_arg(), &sign_md))
goto end;
break;
case OPT_SIGNER:
/* If previous -signer argument add signer to list */
if (signerfile) {
if (sksigners == NULL
&& (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(sksigners, signerfile);
if (keyfile == NULL)
keyfile = signerfile;
if (skkeys == NULL
&& (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(skkeys, keyfile);
keyfile = NULL;
}
signerfile = opt_arg();
break;
case OPT_INKEY:
/* If previous -inkey argument add signer to list */
if (keyfile) {
if (signerfile == NULL) {
BIO_puts(bio_err, "Illegal -inkey without -signer\n");
goto end;
}
if (sksigners == NULL
&& (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(sksigners, signerfile);
signerfile = NULL;
if (skkeys == NULL
&& (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(skkeys, keyfile);
}
keyfile = opt_arg();
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
goto opthelp;
break;
case OPT_RECIP:
if (operation == SMIME_ENCRYPT) {
if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL)
goto end;
cert = load_cert(opt_arg(), FORMAT_PEM,
"recipient certificate file");
if (cert == NULL)
goto end;
sk_X509_push(encerts, cert);
cert = NULL;
} else
recipfile = opt_arg();
break;
case OPT_CIPHER:
if (!opt_cipher(opt_unknown(), &cipher))
goto end;
break;
case OPT_KEYOPT:
keyidx = -1;
if (operation == SMIME_ENCRYPT) {
if (encerts)
keyidx += sk_X509_num(encerts);
} else {
if (keyfile || signerfile)
keyidx++;
if (skkeys)
keyidx += sk_OPENSSL_STRING_num(skkeys);
}
if (keyidx < 0) {
BIO_printf(bio_err, "No key specified\n");
goto opthelp;
}
if (key_param == NULL || key_param->idx != keyidx) {
cms_key_param *nparam;
nparam = app_malloc(sizeof(*nparam), "key param buffer");
nparam->idx = keyidx;
if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
nparam->next = NULL;
if (key_first == NULL)
key_first = nparam;
else
key_param->next = nparam;
key_param = nparam;
}
sk_OPENSSL_STRING_push(key_param->param, opt_arg());
break;
case OPT_V_CASES:
if (!opt_verify(o, vpm))
goto end;
vpmtouched++;
break;
case OPT_3DES_WRAP:
# ifndef OPENSSL_NO_DES
wrap_cipher = EVP_des_ede3_wrap();
# endif
break;
case OPT_AES128_WRAP:
wrap_cipher = EVP_aes_128_wrap();
break;
case OPT_AES192_WRAP:
wrap_cipher = EVP_aes_192_wrap();
break;
case OPT_AES256_WRAP:
wrap_cipher = EVP_aes_256_wrap();
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
BIO_puts(bio_err, "No Signed Receipts Recipients\n");
goto opthelp;
}
if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
goto opthelp;
}
if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
goto opthelp;
}
if (operation & SMIME_SIGNERS) {
if (keyfile && !signerfile) {
BIO_puts(bio_err, "Illegal -inkey without -signer\n");
goto opthelp;
}
/* Check to see if any final signer needs to be appended */
if (signerfile) {
if (!sksigners
&& (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
sk_OPENSSL_STRING_push(sksigners, signerfile);
if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
goto end;
if (!keyfile)
keyfile = signerfile;
sk_OPENSSL_STRING_push(skkeys, keyfile);
}
if (!sksigners) {
BIO_printf(bio_err, "No signer certificate specified\n");
goto opthelp;
}
signerfile = NULL;
keyfile = NULL;
need_rand = 1;
}
else if (operation == SMIME_DECRYPT) {
if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
BIO_printf(bio_err,
"No recipient certificate or key specified\n");
goto opthelp;
}
} else if (operation == SMIME_ENCRYPT) {
if (*argv == NULL && !secret_key && !pwri_pass && !encerts) {
BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
goto opthelp;
}
need_rand = 1;
} else if (!operation)
goto opthelp;
if (!app_passwd(passinarg, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (need_rand) {
app_RAND_load_file(NULL, (inrand != NULL));
if (inrand != NULL)
BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
}
ret = 2;
if (!(operation & SMIME_SIGNERS))
flags &= ~CMS_DETACHED;
if (!(operation & SMIME_OP)) {
if (flags & CMS_BINARY)
outformat = FORMAT_BINARY;
}
if (!(operation & SMIME_IP)) {
if (flags & CMS_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
}
if (secret_key && !secret_keyid) {
BIO_printf(bio_err, "No secret key id\n");
goto end;
}
if (*argv && !encerts)
if ((encerts = sk_X509_new_null()) == NULL)
goto end;
while (*argv) {
if ((cert = load_cert(*argv, FORMAT_PEM,
"recipient certificate file")) == 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_SIGN_RECEIPT) {
if ((signer = load_cert(signerfile, FORMAT_PEM,
"receipt signer certificate file")) == NULL) {
ERR_print_errors(bio_err);
goto end;
}
}
if (operation == SMIME_DECRYPT) {
if (!keyfile)
keyfile = recipfile;
} else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
if (!keyfile)
keyfile = signerfile;
} else
keyfile = NULL;
if (keyfile) {
key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
if (!key)
goto end;
}
in = bio_open_default(infile, 'r', informat);
if (in == NULL)
goto end;
if (operation & SMIME_IP) {
if (informat == FORMAT_SMIME)
cms = SMIME_read_CMS(in, &indata);
else if (informat == FORMAT_PEM)
cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
else if (informat == FORMAT_ASN1)
cms = d2i_CMS_bio(in, NULL);
else {
BIO_printf(bio_err, "Bad input format for CMS file\n");
goto end;
}
if (!cms) {
BIO_printf(bio_err, "Error reading S/MIME message\n");
goto end;
}
if (contfile) {
BIO_free(indata);
if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
BIO_printf(bio_err, "Can't read content file %s\n", contfile);
goto end;
}
}
if (certsoutfile) {
STACK_OF(X509) *allcerts;
allcerts = CMS_get1_certs(cms);
if (!save_certs(certsoutfile, allcerts)) {
BIO_printf(bio_err,
"Error writing certs to %s\n", certsoutfile);
ret = 5;
goto end;
}
sk_X509_pop_free(allcerts, X509_free);
}
}
if (rctfile) {
char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
goto end;
}
if (rctformat == FORMAT_SMIME)
rcms = SMIME_read_CMS(rctin, NULL);
else if (rctformat == FORMAT_PEM)
rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
else if (rctformat == FORMAT_ASN1)
rcms = d2i_CMS_bio(rctin, NULL);
else {
BIO_printf(bio_err, "Bad input format for receipt\n");
goto end;
}
if (!rcms) {
BIO_printf(bio_err, "Error reading receipt\n");
goto end;
}
}
out = bio_open_default(outfile, 'w', outformat);
if (out == NULL)
goto end;
if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
goto end;
X509_STORE_set_verify_cb(store, cms_cb);
if (vpmtouched)
X509_STORE_set1_param(store, vpm);
}
ret = 3;
if (operation == SMIME_DATA_CREATE) {
cms = CMS_data_create(in, flags);
} else if (operation == SMIME_DIGEST_CREATE) {
cms = CMS_digest_create(in, sign_md, flags);
} else if (operation == SMIME_COMPRESS) {
cms = CMS_compress(in, -1, flags);
} else if (operation == SMIME_ENCRYPT) {
int i;
flags |= CMS_PARTIAL;
cms = CMS_encrypt(NULL, in, cipher, flags);
if (!cms)
goto end;
for (i = 0; i < sk_X509_num(encerts); i++) {
CMS_RecipientInfo *ri;
cms_key_param *kparam;
int tflags = flags;
X509 *x = sk_X509_value(encerts, i);
for (kparam = key_first; kparam; kparam = kparam->next) {
if (kparam->idx == i) {
tflags |= CMS_KEY_PARAM;
break;
}
}
ri = CMS_add1_recipient_cert(cms, x, tflags);
if (!ri)
goto end;
if (kparam) {
EVP_PKEY_CTX *pctx;
pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
&& wrap_cipher) {
EVP_CIPHER_CTX *wctx;
wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
}
}
if (secret_key) {
if (!CMS_add0_recipient_key(cms, NID_undef,
secret_key, secret_keylen,
secret_keyid, secret_keyidlen,
NULL, NULL, NULL))
goto end;
/* NULL these because call absorbs them */
secret_key = NULL;
secret_keyid = NULL;
}
if (pwri_pass) {
pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass);
if (!pwri_tmp)
goto end;
if (!CMS_add0_recipient_password(cms,
-1, NID_undef, NID_undef,
pwri_tmp, -1, NULL))
goto end;
pwri_tmp = NULL;
}
if (!(flags & CMS_STREAM)) {
if (!CMS_final(cms, in, NULL, flags))
goto end;
}
} else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
cms = CMS_EncryptedData_encrypt(in, cipher,
secret_key, secret_keylen, flags);
} else if (operation == SMIME_SIGN_RECEIPT) {
CMS_ContentInfo *srcms = NULL;
STACK_OF(CMS_SignerInfo) *sis;
CMS_SignerInfo *si;
sis = CMS_get0_SignerInfos(cms);
if (!sis)
goto end;
si = sk_CMS_SignerInfo_value(sis, 0);
srcms = CMS_sign_receipt(si, signer, key, other, flags);
if (!srcms)
goto end;
CMS_ContentInfo_free(cms);
cms = srcms;
} else if (operation & SMIME_SIGNERS) {
int i;
/*
* If detached data content we enable streaming if S/MIME output
* format.
*/
if (operation == SMIME_SIGN) {
if (flags & CMS_DETACHED) {
if (outformat == FORMAT_SMIME)
flags |= CMS_STREAM;
}
flags |= CMS_PARTIAL;
cms = CMS_sign(NULL, NULL, other, in, flags);
if (!cms)
goto end;
if (econtent_type)
CMS_set1_eContentType(cms, econtent_type);
if (rr_to) {
rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
if (!rr) {
BIO_puts(bio_err,
"Signed Receipt Request Creation Error\n");
goto end;
}
}
} else
flags |= CMS_REUSE_DIGEST;
for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
CMS_SignerInfo *si;
cms_key_param *kparam;
int tflags = flags;
signerfile = sk_OPENSSL_STRING_value(sksigners, i);
keyfile = sk_OPENSSL_STRING_value(skkeys, i);
signer = load_cert(signerfile, FORMAT_PEM, "signer certificate");
if (!signer)
goto end;
key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
if (!key)
goto end;
for (kparam = key_first; kparam; kparam = kparam->next) {
if (kparam->idx == i) {
tflags |= CMS_KEY_PARAM;
break;
}
}
si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
if (!si)
goto end;
if (kparam) {
EVP_PKEY_CTX *pctx;
pctx = CMS_SignerInfo_get0_pkey_ctx(si);
if (!cms_set_pkey_param(pctx, kparam->param))
goto end;
}
if (rr && !CMS_add1_ReceiptRequest(si, rr))
goto end;
X509_free(signer);
signer = NULL;
EVP_PKEY_free(key);
key = NULL;
}
/* If not streaming or resigning finalize structure */
if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
if (!CMS_final(cms, in, NULL, flags))
goto end;
}
}
if (!cms) {
BIO_printf(bio_err, "Error creating CMS structure\n");
goto end;
}
ret = 4;
if (operation == SMIME_DECRYPT) {
if (flags & CMS_DEBUG_DECRYPT)
CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
if (secret_key) {
if (!CMS_decrypt_set1_key(cms,
secret_key, secret_keylen,
secret_keyid, secret_keyidlen)) {
BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
goto end;
}
}
if (key) {
if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
BIO_puts(bio_err, "Error decrypting CMS using private key\n");
goto end;
}
}
if (pwri_pass) {
if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
BIO_puts(bio_err, "Error decrypting CMS using password\n");
goto end;
}
}
if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
BIO_printf(bio_err, "Error decrypting CMS structure\n");
goto end;
}
} else if (operation == SMIME_DATAOUT) {
if (!CMS_data(cms, out, flags))
goto end;
} else if (operation == SMIME_UNCOMPRESS) {
if (!CMS_uncompress(cms, indata, out, flags))
goto end;
} else if (operation == SMIME_DIGEST_VERIFY) {
if (CMS_digest_verify(cms, indata, out, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
} else if (operation == SMIME_ENCRYPTED_DECRYPT) {
if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
indata, out, flags))
goto end;
} else if (operation == SMIME_VERIFY) {
if (CMS_verify(cms, other, store, indata, out, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
if (verify_retcode)
ret = verify_err + 32;
goto end;
}
if (signerfile) {
STACK_OF(X509) *signers;
signers = CMS_get0_signers(cms);
if (!save_certs(signerfile, signers)) {
BIO_printf(bio_err,
"Error writing signers to %s\n", signerfile);
ret = 5;
goto end;
}
sk_X509_free(signers);
}
if (rr_print)
receipt_request_print(cms);
} else if (operation == SMIME_VERIFY_RECEIPT) {
if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
BIO_printf(bio_err, "Verification successful\n");
else {
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
} else {
if (noout) {
if (print)
CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
} else if (outformat == FORMAT_SMIME) {
if (to)
BIO_printf(out, "To: %s%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 (operation == SMIME_RESIGN)
ret = SMIME_write_CMS(out, cms, indata, flags);
else
ret = SMIME_write_CMS(out, cms, in, flags);
} else if (outformat == FORMAT_PEM)
ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
else if (outformat == FORMAT_ASN1)
ret = i2d_CMS_bio_stream(out, cms, in, flags);
else {
BIO_printf(bio_err, "Bad output format for CMS file\n");
goto end;
}
if (ret <= 0) {
ret = 6;
goto end;
}
}
ret = 0;
end:
if (ret)
ERR_print_errors(bio_err);
if (need_rand)
app_RAND_write_file(NULL);
sk_X509_pop_free(encerts, X509_free);
sk_X509_pop_free(other, X509_free);
X509_VERIFY_PARAM_free(vpm);
sk_OPENSSL_STRING_free(sksigners);
sk_OPENSSL_STRING_free(skkeys);
OPENSSL_free(secret_key);
OPENSSL_free(secret_keyid);
OPENSSL_free(pwri_tmp);
ASN1_OBJECT_free(econtent_type);
CMS_ReceiptRequest_free(rr);
sk_OPENSSL_STRING_free(rr_to);
sk_OPENSSL_STRING_free(rr_from);
for (key_param = key_first; key_param;) {
cms_key_param *tparam;
sk_OPENSSL_STRING_free(key_param->param);
tparam = key_param->next;
OPENSSL_free(key_param);
key_param = tparam;
}
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
X509_free(signer);
EVP_PKEY_free(key);
CMS_ContentInfo_free(cms);
CMS_ContentInfo_free(rcms);
BIO_free(rctin);
BIO_free(in);
BIO_free(indata);
BIO_free_all(out);
OPENSSL_free(passin);
return (ret);
}
int
main( int argc, char * argv [] )
{
enum
{
ARG_IN_DATA_FILE_IX = 1,
ARG_OUT_SIG_FILE_IX = 2,
ARG_KEY_FILE_IX = 3,
ARG_KEY_PASS_IX = 4,
ARG_KEY_CERT_FILE_IX = 5,
ARG_FIRST_EXTRA_CERT_FILE_IX = 6
};
int exit_code = 0;
/* -------------------------------------------------------------- */
/* initialization */
exit_code = 1;
SSL_load_error_strings();
SSL_library_init();
/* -------------------------------------------------------------- */
/* command-line processing */
exit_code = 2;
if ( argc < 6 )
{
fprintf( stderr, "usage: %s IN_DATA_FILE OUT_SIG_FILE"
" KEY_FILE KEY_PASS KEY_CERT EXTRA_CERTS...\n", argv[0] );
return 1;
}
BIO * in_data_file = BIO_new_file( argv[ ARG_IN_DATA_FILE_IX ], "rb" );
if ( ! in_data_file )
{
perror( argv[ ARG_IN_DATA_FILE_IX ] );
goto end;
}
BIO * out_sig_file = BIO_new_file( argv[ ARG_OUT_SIG_FILE_IX ], "wb" );
if ( ! out_sig_file )
{
perror( argv[ ARG_OUT_SIG_FILE_IX ] );
goto free_in_data_file;
}
BIO * key_file = BIO_new_file( argv[ ARG_KEY_FILE_IX ], "rb" );
if ( ! key_file )
{
perror( argv[ ARG_KEY_FILE_IX ] );
goto free_out_sig_file;
}
char * pw = argv[ ARG_KEY_PASS_IX ];
/* fprintf( stderr, "pw='%s'\n", pw ); */
BIO * key_cert_file = BIO_new_file( argv[ ARG_KEY_CERT_FILE_IX ], "rb" );
if ( ! key_cert_file )
{
perror( argv[ ARG_KEY_CERT_FILE_IX ] );
goto free_key_file;
}
BIO * * extra_cert_files = NULL;
int num_extra_cert_files = argc - ARG_FIRST_EXTRA_CERT_FILE_IX;
if ( num_extra_cert_files > 0 )
{
extra_cert_files = calloc( num_extra_cert_files, sizeof( BIO * ) );
if ( ! extra_cert_files )
{
perror( "extra_cert_files" );
goto free_key_cert_file;
}
for ( int i = 0; i < num_extra_cert_files; ++i )
{
extra_cert_files[i] =
BIO_new_file( argv[ ARG_FIRST_EXTRA_CERT_FILE_IX + i ], "rb" );
if ( ! extra_cert_files[i] )
{
perror( argv[ ARG_FIRST_EXTRA_CERT_FILE_IX + i ] );
goto free_key_cert_file;
}
}
}
/* -------------------------------------------------------------- */
/* processing */
exit_code = 3;
#define FAIL( msg, dest ) \
do { \
fprintf( stderr, "error: " msg "\n" ); \
goto dest; \
} while ( 0 )
EVP_PKEY * key = PEM_read_bio_PrivateKey( key_file, NULL, NULL, pw );
if ( ! key )
FAIL( "reading private key", free_extra_cert_files );
X509 * key_cert = PEM_read_bio_X509( key_cert_file, NULL, NULL, NULL );
if ( ! key_cert )
FAIL( "reading signing cert", free_key );
STACK_OF(X509) * extra_certs = NULL;
if ( num_extra_cert_files > 0 )
{
int success = 1;
extra_certs = sk_X509_new_null();
if ( ! extra_certs )
FAIL( "allocating stack for extra certs", free_key_cert );
for ( int i = 0; i < num_extra_cert_files; ++i )
{
X509 * tmp = PEM_read_bio_X509( extra_cert_files[i],
NULL, NULL, NULL );
if ( ! tmp )
{
fprintf( stderr, "error reading '%s'\n",
argv[ ARG_FIRST_EXTRA_CERT_FILE_IX + i ] );
success = 0;
break;
}
if ( ! sk_X509_push( extra_certs, tmp ) )
{
fprintf( stderr, "error pushing '%s'\n",
argv[ ARG_FIRST_EXTRA_CERT_FILE_IX + i ] );
success = 0;
X509_free( tmp );
break;
}
}
if ( ! success )
FAIL( "could not read extra certs", free_extra_certs );
}
CMS_ContentInfo * ci = CMS_sign( key_cert, key, extra_certs, in_data_file,
CMS_DETACHED | CMS_BINARY );
/* if ( 1 != PEM_write_bio_CMS( out_sig_file, ci ) )
FAIL( "could not write signature in PEM", free_ci ); */
if ( 1 != i2d_CMS_bio( out_sig_file, ci ) )
FAIL( "could not write signature in DER", free_ci );
/* -------------------------------------------------------------- */
/* success */
exit_code = 0;
/* -------------------------------------------------------------- */
/* cleanup */
free_ci:
CMS_ContentInfo_free( ci );
free_extra_certs:
sk_X509_pop_free( extra_certs, &X509_free );
free_key_cert:
X509_free( key_cert );
free_key:
EVP_PKEY_free( key );
free_extra_cert_files:
for ( int i = 0; i < num_extra_cert_files; ++i )
BIO_vfree( extra_cert_files[ i ] );
free( extra_cert_files );
free_key_cert_file:
BIO_vfree( key_cert_file );
free_key_file:
BIO_vfree( key_file );
free_out_sig_file:
BIO_vfree( out_sig_file );
free_in_data_file:
BIO_vfree( in_data_file );
ERR_print_errors_fp( stderr );
ERR_remove_state( /* pid= */ 0 );
ENGINE_cleanup();
CONF_modules_unload( /* all= */ 1 );
EVP_cleanup();
ERR_free_strings();
CRYPTO_cleanup_all_ex_data();
end:
return exit_code;
}
GBytes *cms_sign(GBytes *content, const gchar *certfile, const gchar *keyfile, gchar **interfiles, GError **error)
{
GError *ierror = NULL;
BIO *incontent = BIO_new_mem_buf((void *)g_bytes_get_data(content, NULL),
g_bytes_get_size(content));
BIO *outsig = BIO_new(BIO_s_mem());
X509 *signcert = NULL;
EVP_PKEY *pkey = NULL;
STACK_OF(X509) *intercerts = NULL;
CMS_ContentInfo *cms = NULL;
GBytes *res = NULL;
int flags = CMS_DETACHED | CMS_BINARY;
g_return_val_if_fail(content != NULL, NULL);
g_return_val_if_fail(certfile != NULL, NULL);
g_return_val_if_fail(keyfile != NULL, NULL);
g_return_val_if_fail(error == NULL || *error == NULL, NULL);
signcert = load_cert(certfile, &ierror);
if (signcert == NULL) {
g_propagate_error(error, ierror);
goto out;
}
pkey = load_key(keyfile, &ierror);
if (pkey == NULL) {
g_propagate_error(error, ierror);
goto out;
}
intercerts = sk_X509_new_null();
for (gchar **intercertpath = interfiles; intercertpath && *intercertpath != NULL; intercertpath++) {
X509 *intercert = load_cert(*intercertpath, &ierror);
if (intercert == NULL) {
g_propagate_error(error, ierror);
goto out;
}
sk_X509_push(intercerts, intercert);
}
cms = CMS_sign(signcert, pkey, intercerts, incontent, flags);
if (cms == NULL) {
unsigned long err;
const gchar *data;
int errflags;
err = ERR_get_error_line_data(NULL, NULL, &data, &errflags);
g_set_error(
error,
R_SIGNATURE_ERROR,
R_SIGNATURE_ERROR_INVALID,
"failed to create signature: %s", (errflags & ERR_TXT_STRING) ? data : ERR_error_string(err, NULL));
goto out;
}
if (!i2d_CMS_bio(outsig, cms)) {
g_set_error_literal(
error,
R_SIGNATURE_ERROR,
R_SIGNATURE_ERROR_SERIALIZE_SIG,
"failed to serialize signature");
goto out;
}
res = bytes_from_bio(outsig);
if (!res) {
g_set_error_literal(
error,
R_SIGNATURE_ERROR,
R_SIGNATURE_ERROR_UNKNOWN,
"Read zero bytes");
goto out;
}
/* keyring was given, perform verification to obtain trust chain */
if (r_context()->config->keyring_path) {
g_autoptr(CMS_ContentInfo) vcms = NULL;
g_autoptr(X509_STORE) store = NULL;
STACK_OF(X509) *verified_chain = NULL;
g_message("Keyring given, doing signature verification");
if (!cms_verify(content, res, &vcms, &store, &ierror)) {
g_propagate_error(error, ierror);
res = NULL;
goto out;
}
if (!cms_get_cert_chain(vcms, store, &verified_chain, &ierror)) {
g_propagate_error(error, ierror);
res = NULL;
goto out;
}
for (int i = 0; i < sk_X509_num(verified_chain); i++) {
const ASN1_TIME *expiry_time;
struct tm *next_month;
time_t now;
time_t comp;
time(&now);
next_month = gmtime(&now);
next_month->tm_mon += 1;
if (next_month->tm_mon == 12)
next_month->tm_mon = 0;
comp = timegm(next_month);
expiry_time = X509_get0_notAfter(sk_X509_value(verified_chain, i));
/* Check if expiry time is within last month */
if (X509_cmp_current_time(expiry_time) == 1 && X509_cmp_time(expiry_time, &comp) == -1) {
char buf[BUFSIZ];
X509_NAME_oneline(X509_get_subject_name(sk_X509_value(verified_chain, i)),
buf, sizeof buf);
g_warning("Certificate %d (%s) will exipre in less than a month!", i + 1, buf);
}
}
sk_X509_pop_free(verified_chain, X509_free);
} else {
g_message("No keyring given, skipping signature verification");
}
out:
ERR_print_errors_fp(stdout);
BIO_free_all(incontent);
BIO_free_all(outsig);
return res;
}